挖掘机加长臂变乱速率过快的料理要领

日期:2018-09-19   源头:http://www.sefibox.com/
1、缘故缘故原因构成:
1, causes:
配装了加长臂变乱装置的挖掘机,由于其动臂和斗杆较长、变乱范围较大,按正常挖掘机变乱速率设定时,其动臂及斗杆线速率过快,应用手难以控制,容易发生安全变乱。故需料理加长臂变乱装置方法速率过快标题。
The excavator equipped with the working device of the extended arm has a long arm and bucket bar, and has a large working range. When the working speed of the excavator is set according to the normal working speed, the linear speed of the arm and bucket bar is too fast for the operator to control, and it is easy to cause safety accidents. Therefore, it is necessary to solve the problem of excessive speed of the long arm working device.
2、选择革新方案:
2, choose the improvement plan:
挖掘机变乱装置的主控阀由先导压力油控制,先导压力油进入主控阀阀芯端部,推进主控阀阀芯左、右移动,将主控阀回路翻开。可采取减小主控阀通径的要领举行革新。
The main control valve of the excavator working device is controlled by the pilot pressure oil. The pilot pressure oil enters the end of the main control valve spool, pushes the main control valve spool to move left and right, and opens the main control valve loop. The method of reducing the diameter of the main control valve can be used for improvement.
依据该主控阀阀芯行程和通流面积曲线可以看出,主控阀阀芯开启进程是冉冉增大的,阀芯行程越大,主控阀通流面积就越大。当阀芯活动到行程的着末,启齿抵达大时,颠末主控阀的流量抵达大。
加长臂挖掘机出租
According to the curve of the spool stroke and flow area of the main control valve, it can be seen that the opening process of the main control valve spool is gradually increasing. The larger the spool stroke, the larger the flow area of the main control valve. When the spool moves to the end of the stroke and the opening reaches the maximum, the flow through the main control valve reaches the maximum.
由此可见,对主控阀阀芯举行限位,可以减小阀芯行程。当主控阀阀芯向左、右端移动时,控制主控阀阀芯不克不及抵达全行程,主控阀阀口开度不克不及抵达大值,就可减小通流面积,飞扬流向液压缸的流量,从而飞扬变乱装置速率。
It can be seen that the valve core can be reduced by limiting the spool of the main control valve. When the spool of the main control valve moves to the left and right, the spool of the main control valve can not reach the full stroke, and the opening of the main control valve can not reach the maximum value, so the flow area can be reduced and the flow to the hydraulic cylinder can be reduced, thus reducing the speed of the working device.
3、实行及验证:
3, implementation and verification:
依据以上阐发,颠末对主控阀丈量,确认其阀芯全行程量为10mm。陈设主控阀阀芯行程限位讨论后,变乱装置速率明白飞扬。
According to the above analysis, through the measurement of the main control valve, it is confirmed that the full stroke of the spool is 10mm. After installing the main control valve spool, the working speed of the device is obviously reduced.
以动劈下降为例,陈设行程限位讨论落伍行运用性及谐和性实行,发现陈设限定行程为2.5mm的阀芯行程限位讨论时,动臂下降的各项目的及零件的运用性及谐和性均抵达范例变乱装置挖掘机动臂下降速率,可以大约餍足挖掘机出要求。
Taking the moving wedge descent as an example, the maneuverability and coordination tests were carried out after installing the stroke limit joint. It was found that when installing the valve core stroke limit joint with the limit stroke of 2.5mm, the indexes of the arm descent and the maneuverability and coordination of the whole machine all reached the standard working device, and the arm descending speed of the excavator could meet the requirements of the excavator. .
有了下面的小总结,盼望对重办客户有所资助,要是有什么不睬解的约莫寻求资助的请点击江苏快三开奖结果的官方网站:加长臂挖掘机租赁
With the above summary, I hope it will be helpful to our customers. If you don't understand or ask for help, please click our official website: Extended Arm Excavator Rental
http://www.sefibox.com约莫来电咨询,江苏快三开奖结果会尽快乐为您料理
Http://www.sefibox.com or call for consultation, we will do our best to solve it for you.

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