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讲解装载机铲斗收斗不到位产生的原因

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讲解装载机铲斗收斗不到位产生的原因

发布日期:2018-02-05 作者:贵州装载机 点击:

贵州装载机">讲解装载机铲斗收斗不到位产生的原因

贵州装载机

Explain why the bucket of loader bucket is not in place

相信开过装载机的师傅都或多或少的有遇到过装载机铲斗收斗不到位的情况,下面贵州装载机的工程师就给大家介绍下产生这种情况的原因。

I believe that the master who has opened the loader has encountered more or less the condition that the loader bucket is not in place. The engineer of the loader in Guizhou has introduced the cause of this situation.

“铲斗收斗不到位”现象是指装载机工作装置工作一段时间后,铲斗上的收斗限位块无法与动臂接触,收斗角达不到规定值。

The phenomenon that the bucket is not in place is that after the working device of the loader works for a period of time, the bucket stop block on the bucket can not contact with the boom, and the angle of the collecting bucket can't reach the specified value.

该现象的发生主要是由于工作装置中结构件强度不够,发生塑性变形引起的。AG8在设计工作装置时,验算工作装置的强度往往是在装载机全负荷进行插入物料掘起时进行受力分析的,AG8往往认为在此种工况下,工作装置受力是最大的。其实不然,根据工作经验,AG8分析认为发生塑性变形的工况还有几种被AG8忽略的情况,特在这里提出来,以便大家在今后的设计工作中对工作装置结构强度分析时加以考虑。

The occurrence of this phenomenon is mainly due to the insufficient strength of the structural parts in the working device and the plastic deformation. We are in the design of working device, checking the intensity of working equipment is often inserted into the material rise in the loader full load stress analysis, we tend to think that in this condition, the work force is the largest unit. In fact, according to our work experience, we think that there are several neglected cases in plastic deformation work. We put it here for you to consider in the future design work.

第一种情况:

The first case:

贵阳直喷装载机提醒AG8在设计工作装置时,为了防止装载机在运输物料时撒料,通过调整翻斗缸与前车架连接的铰点位置,使工作装置从地面收斗位置到规定运输位置的最高点这一段圆弧运动,铲斗的收斗限位块始终是紧紧靠在动臂上的,这样可以保护工作装置免受冲击,防止物料撒落,而且可以简化驾驶员的操作,不用地面收斗后,到运输位置时,再操作一下收斗动作。这种功能就是AG8常说的“靠挡块功能”。

Remind us in the design of working device of loader when Guiyang direct injection, in order to prevent spillage in the transport material loader, double hinge point bucket cylinder connected with the front frame by adjusting the working device from the ground receiving bucket position to the highest point of the transport position provisions of this circular movement, bucket bucket limit a block is always close in on the boom, so that we can protect the working device to prevent the material from the impact of scattered, but also can simplify the operation of the driver, not the ground receiving bucket, to transport position, then operate the collection bucket action. This kind of function is what we often say "block function".

通过运动轨迹,AG8仔细分析发现,具有该功能的工作装置如果没有收斗限位块的限制,工作装置从地面收斗位置到规定运输位置的最高点这一段圆弧运动中,铲斗与动臂的相对夹角是逐渐减小的。在实际工作中,由于收斗限位块的限制,铲斗迫使拉杆去拉动摇臂,将翻斗缸活塞杆压回去。翻斗缸活塞杆被压回去是通过翻斗缸前腔补油阀进油,后腔泄荷阀回油实现的。一般来说,后腔泄荷阀的开启压力是工作液压系统的系统压力的1.25倍。

Through the trajectory, we found that careful analysis, with the function of the working device without close bucket limiting block limit, working device from the ground receiving bucket position to the highest point of the transport position provisions of this circular motion, the relative angle between bucket and boom is gradually reduced. In practical work, the bucket forces the rod to pull the rocker arm and press back the piston rod of the bucket cylinder due to the limitation of the bucket limit block. The piston rod of the bucket cylinder is pressed back into the oil through the front cavity filling valve of the bucket cylinder and the back chamber discharge valve to return the oil. Generally speaking, the opening pressure of the rear cavity discharge valve is 1.25 times that of the system pressure of the working hydraulic system.


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