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          挖掘機“跳檔”的原因及處理方法!

          日期:2020-03-10   來源:http://www.yjzpsnyang.com/
          挖掘機是一種非常常見的工程機械,“跳擋”是挖掘機的常見故障之一,在挖掘機的工作過程中,如果出現傳動“跳擋”,機器應及時停機(或繼續運行),然后查找原因,排除故障。下面具體分析挖掘機“跳檔”的原因及處理方法:
          Excavator is a very common construction machinery, and "jump stop" is one of the common faults of excavator. In the working process of excavator, if the transmission "jump stop" occurs, the machine should be shut down in time (or continue to run), and then find out the reason and eliminate the fault. The following specific analysis of the causes and handling methods of "skip stop" of excavator:
          1. “換檔”的原因
          1. Reasons for "shifting"
          (1)性能的自鎖機制來防止“跳出”的傳播,傳播的類型挖掘機Ⅱ、Ⅲ封面和ⅣⅤ叉軸頂部的盒子蓋內孔和Ⅰ,反向齒輪叉自鎖安鋼球和彈簧的作用。當具有定位自鎖功能的彈簧被削弱或折斷時,自鎖機構的自鎖性能下降直消失,導致傳動“跳停”。同時,鋼球或叉軸的定位槽若磨損,也會造成變速器的“跳塊”。
          (1) Performance of self-locking mechanism to prevent the "jump out" of the propagation, the propagation type of excavator II, III cover and IV V fork shaft top box cover inner hole and I, reverse gear fork self-locking steel ball and spring. When the spring with positioning self-locking function is weakened or broken, the self-locking performance of the self-locking mechanism decreases until it disappears, resulting in the "trip stop" of the drive. At the same time, if the positioning groove of the steel ball or fork shaft is worn, it will also cause the "jumping block" of the transmission.
          (2) w4-60型挖掘機的變速傳動機構磨損,采用機械換檔傳動的傳動機構。這種傳動機構是由滑動齒輪套在固定齒輪套上作軸向運動,并與各齒輪的從動齒輪嚙合而實現的。在頻繁換檔的過程中,上述嚙合齒輪的齒端面很容易磨成錐體,導致嚙合性能下降,導致“跳齒輪”。
          (2) The transmission mechanism of w4-60 excavator is worn, and the transmission mechanism of mechanical shift transmission is adopted. The transmission mechanism is realized by the axial movement of the sliding gear sleeve on the fixed gear sleeve and the engagement with the driven gears of each gear. In the process of frequent shifting, the tooth end face of the above meshing gear is easy to grind into a cone, which leads to the decrease of meshing performance and "gear skipping".
          (3)外載荷的突變由于挖掘機的工作性質和機器的設計,外載荷的突變也會導致變速器“跳停”。當路面不均勻,機器下坡行駛或行駛路線不正確,使外部負載突然變化,負荷的突然變化會通過車輪,傳動軸的傳動齒輪嚙合齒輪,使齒輪嚙合齒輪的軸向推力,導致傳播“跳塊”。
          (3) The sudden change of the external load will also cause the transmission to "trip" due to the working nature of the excavator and the design of the machine. When the road surface is uneven, the machine goes downhill or the driving route is not correct, so that the external load changes suddenly, and the sudden change of load will mesh the gear through the wheel and the transmission gear of the transmission shaft, making the gear mesh with the axial thrust of the gear, resulting in the propagation of "jumping block".
          (4)換擋裝置調整不當本型挖掘機傳動采用機械手動換擋。變速桿松脫,立軸、橫軸和垂直固定螺釘也會使變速器“跳停”。
          (4) Improper adjustment of gearshift device mechanical manual gearshift is adopted for the transmission of this type of excavator. If the transmission lever is loose, the vertical shaft, horizontal shaft and vertical fixing screw will also make the transmission "trip".
          (5)操作方法不當挖掘機在坡道上行駛時(尤其是下坡時),操作不當也會導致變速器“跳塊”。
          (5) Improper operation of the excavator on a ramp (especially when it is going downhill), improper operation will also cause the transmission to "trip".
          2. 緊急措施
          2. Emergency measures
          在挖掘機運行過程中,如果出現傳動“跳塊”,機器應及時停機(或繼續運行),然后查找原因,排除故障。具體方法為:
          During the operation of the excavator, if the transmission "trip block" occurs, the machine should be shut down in time (or continue to run), and then find out the cause to eliminate the fault. The specific methods are as follows:
          (1)有一個“跳出”希爾路,可以放置在位置或塊Ⅰ塊位置,低速度機器停機時間再次去頂部時,故障排除;如果減塊不成功或另“跳塊”,應根據斜坡停止動作要領和要求停止,然后排除故障。
          (1) There is a "jump" Hill Road, which can be placed at the position or block I position. When the low-speed machine stops at the top again, the fault is eliminated; if the block reduction is not successful or another "jump block", the action essentials and requirements of the slope stop shall be followed to stop, and then the fault shall be eliminated.
          (2)平路上行駛出現“跳車塊”時,可按正常停車要領停機,仔細查找原因,排除故障。
          (2) When the "trip block" appears on the flat road, stop the vehicle according to the normal parking essentials, carefully find out the cause and eliminate the fault.
          (3)下匝道行駛時若出現“跳車”,應根據加擋動作要領或采取“急降擋”措施,將擋塊位置置于高速位置。機器到達斜坡底部后,將停機進行檢查和故障排除。如果“停止”,“停止”不成功或另一個“跳停止”(這一次是中性的),司機可以控制發動機轉速的中速(防止發動機熄火),使用“剎車”的方法使機器底部的斜率,然后進行故障診斷。如果“添加塊”,“抓塊”不成功或另一個“跳塊”(此時是中性的),和機器的下一個大斜坡(這個時候機器將以非??斓乃俣刃逼碌牡撞?ldquo;潛水”),應盡快根據下坡停止動作要領和要求停止,然后扣除的錯。
          (3) In case of "trip" on the down ramp, the stop shall be placed at the high speed position according to the action essentials of upshift or the measures of "sharp downshift". When the machine reaches the bottom of the slope, stop the machine for inspection and troubleshooting. If "stop", "stop" is not successful or another "skip stop" (this time neutral), the driver can control the medium speed of the engine speed (to prevent the engine from stalling), use the "brake" method to make the slope at the bottom of the machine, and then carry out fault diagnosis. If "add block", "grab block" is not successful or another "skip block" (neutral at this time), and the next large slope of the machine (the machine will "dive" at the bottom of the slope at a very fast speed at this time), stop as soon as possible according to the down slope stop action essentials and requirements, and then deduct the error.

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