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    挖掘機加長臂工作速度過快怎么解決?

    日期:2019-12-19   來源:http://www.4dez.com/
      看到這個問題,我想我們會有疑問。擴展臂在整個項目中工作得很快,這不是一件好事嗎?小編為什么說這是一個問題呢?事實上,這里提到的速度是與你們挖掘機的設定速度相比較的。一些挖掘機已經被修改為安裝挖掘機的伸縮臂,這與設備本身的速度不同,導致伸縮臂無法控制。那么如何解決這個問題呢?下面的內容希望能幫助你回答這個問題!
      Seeing this problem, I think we will have questions. Isn't it a good thing that the extension arm works very fast in the whole project? Why did Xiaobian say it was a problem? In fact, the speed mentioned here is compared with the set speed of your excavator. Some excavators have been modified to install the telescopic boom of the excavator, which is different from the speed of the equipment itself, causing the telescopic boom to be out of control. So how to solve this problem? The following content hopes to help you answer this question!
      1. 原因:
      1. Reason:
      挖掘機配有加長臂工作裝置,移動臂長,斗桿長,工作范圍大,容易發生安全事故。當挖掘機的工作速度設定為正常工作速度時,移動臂和斗桿線的速度太快,操作人員無法控制。因此,有必要解決加長臂工作裝置移動過快的問題。
      The excavator is equipped with the working device of the lengthening arm, the moving arm is long, the stick is long, the working range is large, and the safety accident is easy to occur. When the working speed of the excavator is set to the normal working speed, the speed of the moving arm and the stick line is too fast for the operator to control. Therefore, it is necessary to solve the problem that the working device of the long arm moves too fast.
      2. 改進方案的選擇:
      2. Selection of improvement plan:
      挖掘機工作裝置的主控制閥由先導壓力油控制。先導壓力油進入主控制閥閥芯端,推動閥芯左右移動,打開主控制閥回路。它可以通過減小主控制閥的尺寸來改進。
      The main control valve of the excavator working device is controlled by pilot pressure oil. The pilot pressure oil enters the valve core end of the main control valve, pushes the valve core to move left and right, and opens the main control valve circuit. It can be improved by reducing the size of the main control valve.
      根據主控制閥閥芯行程和流量面積曲線可以看出,主控制閥閥芯開啟過程逐漸增大,閥芯行程越大,主控制閥的流量面積越大。當閥芯移動到沖程的末端時,開口達到,通過主控制閥的流量達到。
      According to the stroke and flow area curve of the main control valve core, it can be seen that the opening process of the main control valve core increases gradually, and the larger the valve core stroke is, the larger the flow area of the main control valve is. When the spool moves to the end of the stroke, the opening reaches the maximum and the flow through the main control valve reaches the maximum.
      從而,主控制閥閥芯極限,可以減少閥芯行程。當主滑閥控制左、右端移動,控制的主要控制滑閥不能達到完整的中風,主控閥閥門開度不能達到,可以減少流動區域,降低液壓缸的流量,從而減少工作設備的速度。
      Thus, the valve core limit of the main control valve can reduce the valve core stroke. When the main slide valve controls the movement of the left and right ends, the main control slide valve cannot achieve complete stroke, and the valve opening of the main control valve cannot reach the maximum, which can reduce the flow area, reduce the flow of the hydraulic cylinder, and thus reduce the speed of the working equipment.
    加長臂挖掘機出租
      3.實現和驗證:
      3. Implementation and verification:
      根據以上分析,通過對主控制閥的測量,確定閥芯的全行程為10mm。主控制閥閥芯行程限位接頭安裝后,工作裝置轉速明顯下降。
      According to the above analysis, through the measurement of the main control valve, the full stroke of the valve core is determined to be 10 mm. After the main control valve element travel limit joint is installed, the rotating speed of the working device decreases obviously.
      以動劈落差為例,進行了閥芯行程限位接頭安裝后的操縱性和協調性試驗。發現當閥芯位移限制關節安裝了2.5毫米的旅行限制,動臂下降的指標和整個機器的可操作性和協調達到挖掘機動臂的下行速度的標準工作設備,可以滿足挖掘機的需求。
      Taking the dynamic split drop as an example, the operability and coordination tests of the valve core travel limit joint after installation are carried out. It is found that when a travel limit of 2.5mm is installed on the valve core displacement limit joint, the index of boom lowering and the operability of the whole machine, as well as the standard working equipment that can reach the downward speed of the boom of the excavator, can meet the needs of the excavator.
      利用以上方法對挖掘機的伸縮臂進行改進,可以有效地解決工作裝置速度過快的問題,你了解了嗎?
      Using the above method to improve the telescopic arm of excavator can effectively solve the problem that the working device is too fast. Do you understand?

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