The operation of the hydraulic loader is completed through two handles, the four directions of the front, back, left and right of the two handles, separately from the rotation of the boom, stick, bucket and upper part of the body that controls the loader . According to the different corresponding methods, the operation form of the loader is divided into two categories, "left and right rotation" and "back and forth rotation", then let me talk about some differences between them.
Two operating methods
The first category is represented by Japanese second-hand imported machines and senior old drivers. The front, rear, left, and right parting of the left-hand handle correspond to the right rotation, left rotation, stick extension, and stick withdrawal of the loader. . Our habit is simply referred to as "rotating back and forth."
The second category is represented by a new domestic machine and a new generation of young drivers. The front, rear, left, and right separation of the left-hand handle correspond to the stick extension of the loader, the stick retraction, left rotation and right rotation. . Our habit is simply referred to as "rotating left and right."
Some people call these two forms, "positive mobile phone" and "anti-mobile phone", but because of the lack of a unified naming, there is a difference in the name. There are also mobile phones that rotate left and right to be called positive mobile phones, and front and back to be called anti-mobile phones. It is believed that to prevent confusion, this article only refers to front-to-back rotation and left-to-right rotation. It is to be clarified here that "positive mobile phone" refers to left-right rotation, and up-down rotation or back-to-back rotation is "anti-mobile phone". The difference is only in the operation of the left hand handle of the loader, and the method of operating the right hand handle is unchanged.
Left operation handle
Why are there two forms of operation? Isn't it good to be unified into one?
I seem to have found some answers from some old Japanese imported second mobile phones. Some imported loaders with a toggle switch may be kept on the glass in the control room. The switching form of the operation form is explained. Although I can't understand Japanese characters, the Chinese characters in the middle can be recognized, such as "Mitsubishi" and "Sumitomo". We all know that this is the brand of the machine and the name of the manufacturer. This clarifies the difference in operation forms, because the manufacturers are different, and even one or more manufacturers represent an operation form. And there are not only two kinds of rotation, front and back rotation and left and right rotation, but also two other forms of operation that are completely exchanged with the left and right hands, which is basically unnecessary in our country.
Foreign machinery control room
From the current rotary drilling rig market in China, we can also see the situation of Japan in the early stage of construction machinery production. At present, China's rotary drilling rigs are all from various manufacturers, all kinds of production, Shanhe Intelligence, Sany Heavy Industry, Zoomlion Heavy Industry, Hengtian 95th, etc., and the operation forms of rotary drilling rigs produced by almost every manufacturer are slightly There are different. Fortunately, the compound action of the rotary digging operation is relatively simple, and it is relatively simple for the driver to change from one form to another.
Originally, because different manufacturers produced different machines, they produced different forms of operation. Later, after being passed from generation to generation by the loader driver, these two mainstream forms of loader operation were formed overnight.
Which kind of rotation is good?
I have had five years of back-and-forth rotation before, and then I have been driving a loader that rotates left and right for another six years, so I have some understanding of the two forms of operation. Many people say that "the front and back are flat, and the left and right are good for loading." If you want to ask which operation form is better, you should first analyze from the action of the loader.
The common backhoe loader, although the movements are complex and diverse, but if you carefully investigate, you will find that because of the structure of the loader, any movement during the operation of the loader can be understood as a "standard compound movement", Then the addition and subtraction action is completed on this basis. The standard action is that the arm retracts together with the boom to raise the bucket inward. This canonical compound action is used the most during operations.
When leveling, it is based on this, cut some booms to raise, more sticks to retract and cut some buckets to move inward. Excavation work is also based on standard movements, some booms are cut, more sticks, and it is appropriate to participate more in the bucket inward. The soil-throwing operation is only to participate in the rolling after the standard movements are completed. The various operations of the loader can be understood as evolved from this standard action. Therefore, the frequency of this standard action in the operation of the loader is very high, and it can be displayed thousands of times in one day of operation.
Returning to the previous question, which of the two forms of operation is better? The frequency of normalized actions in the operation of the loader is so high, which type of operation can easily complete the standard compound action, naturally It makes the driving easier, and also reduces the fatigue of the loader driver.
When rotating forward and backward, do standard compound movements. The left hand moves inwards and the right hand moves inwards and backwards.
In the operation mode of left-right rotation, normal compound movements are performed, the left hand moves backwards, and the right hand moves inwards and backwards.
The difference lies in the assignment of the loader ’s stick action, that is, the difference in the left hand, which one is easier? Here we should mention some common sense of human structure. See clearly. When the loader driver is working, sitting, holding the operating handle with both hands, the arm naturally bends. When the forearm is lying flat, the natural motion track of the left hand wrist joint is inward and downward, and the elbow joint is to move the forearm forward and backward , The shoulder joint is more flexible, can move back and forth with the arm and can also rotate around. The loader driver, when the loader that rotates before and after the operation of the loader to perform the standard compound movement, the left hand can be completed only with the wrist joint. In the operation mode of left and right rotation, to perform a standard compound movement, it is necessary to use the entire arm including the elbow joint and the shoulder joint. Because the driver repeats and regulates the compound action countless times a day, compared with the long-time driving loader operation, the operation form of rotating back and forth will be easier.
Loader in operation
Of course, there is a flaw in this comparison method. In the front-back rotation operation mode, the left-hand control handle moves inward to control the loader arm to retract; while in the left-right rotation operation mode, the left-hand control handle moves inward to control the loading The machine rotates left. If there is a work item that requires the loader to rotate more than digging, then the conclusion of the previous comparison will be the opposite, but I can't imagine any work item that requires more rotation than digging and not digging up. Why spin? It seems that this is rarely the case!
In fact, the operation form of left-right rotation is not bad. Now, the newly-acquired loader is acquiescence in the form of left-right rotation. More and more drivers who are accustomed to left-right rotation are more and more. In the operation mode of left and right rotation, each action of the front, back, left, and right of the bucket is the same as that of the left-hand operation. It is more intuitive to control the loader bucket, and it is easier for novices to get started, and it is convenient for education. The two forms have their own merits and demerits. It doesn't matter which is better or not, it's better to get used to it.
Several ways to change the operation form
First, rotate the handle, start by yourself, remove the left operating handle, four screws, and rotate it 90 ° together with the bullet and the tubing and then install it. When the front-to-back rotation is changed to left-right rotation, it is rotated 90 ° counterclockwise, and when the left-to-right rotation is changed to front-to-back rotation, it is rotated 90 ° clockwise. Only this is cumbersome, and the space is small when rotating, and the tubing is hard, so the method of rotating the handle is not very convenient.
Second, I do n’t know which philosopher once said, “If you want to change the world, you must change yourself first.” If you ca n’t change the operation mode of the loader, then change your driving habits. The beginning may be a bit uncomfortable, and it can be changed in about three to five days. There was a friend who claimed to be able to operate at any time by rotating back and forth and left and right. But after my investigation, I found that there was always some discomfort when converting, and I could only complete relatively simple homework. But it is the process of changing the habit of controlling the habit. It takes time, some people can get it in half a day, and some people can't do it in a week. This may depend on the proficiency of the previous form of operation.
Handle bottom close-up
Third, it is to change the pipeline. This method is more widespread. Generally, it is to change the oil pipe connection block in the side door behind the control room. One end of these small oil pipes is the bullet of the handle, and the other end is from the multi-way valve. Only this method needs to know that the actions controlled by each tubing can be changed accordingly. And the orientation of each brand loader is different. Generally, only the after-sales service staff knows this best, but asking them to change is usually a charge. If you need to change it frequently, then when the after-sales staff changes it for you, quietly remember that you can change it later.
Pilot tubing orientation
There is also a way to find out the tubing control action by yourself: first insert the bucket of the loader into the soil, leave the left hand handle to do the back and forth and left and right movements, and hold the machine together and investigate carefully Touch by hand to see which tubing has tremor, it is corresponding to the corresponding action, and then you can change it according to this.
Fourth, if it is a loader with a switch, it is very easy to handle. Just scroll through the switch, just pay attention to whether the flame should be turned off first, and then switch according to the clarification book. Of course, the switch is not available for every loader. Some Japanese mobile phones are imported. There are two types of switch. One is that it can switch four types. Among them, the two are the front and back rotation and the left and right rotation. The other two are to exchange the left and right hands completely. This type of switch is usually installed in the side door behind the cab or around the rotary motor. The other type is that you can only switch between two types of operation, and you can only switch between front and back rotation and left and right rotation. This type of switch is usually installed under the seat in the cab. If you need to switch frequently, you can also install a switch.
