How to load the excavator? How to do it with an excavator

According to the working scenario, the excavator loading operation can be divided into three categories: flat loading, high platform loading and low loading. The three scenarios are different, and the technical difficulty is also different, among which the loading of the high platform is simpler, while the loading of the low position is more difficult.

1. Flat ground loading operation skills (difficulty index

When loading on flat ground, the first thing to do is to choose a good station to keep the excavator and the dump truck parallel. Keep a certain distance between the excavator and the dump truck, the standard is: when the excavator crosses, the bucket can be placed above the dump truck, and the angle between the boom and the boom is about 100°.

This allows for flexible use of the large and small booms while maintaining a safe distance between the excavator's counterweight and the dump truck.

Flat loading is the most common loading condition, and then it can be loaded. Whether it is loaded from front to back or from back to front, the bucket should be turned in the middle of the rear compartment plate of the dump truck every time, and the small arm should be slightly reviewed when the first half of the installation is installed, so that the material falls in the middle part of the large box. If you are loading sand, you should open the bucket slowly and half a beat, because the sand is loose, and the bucket will start to fall down before it is fully opened.

Finally, you can master the rhythm of each shovel.

2. High-platform loading operation skills (difficulty index

High-platform loading operation means that the excavator is in a high place and the dump truck is in a low place, which is the easiest way to operate. This method is labor-saving and efficient, and it is also a loading method that is preferred by the fans.

The most important work of the high platform loading operation is to trim the platform, which can not be too high, and it is best to be close to the height of the dump truck, so that the excavator can not only see the inside of the car, but also accurately put the soil in the right position. It should be noted that the excavator should adjust its position at any time during the operation to keep the excavator and the dump truck at a suitable distance. When loading the high platform, pay attention to the track alignment and the body stop.

The operation of loading the high platform is relatively simple, and the track should be placed in the right place when loading, and the body should be stopped. At the same time of loading, it is necessary to clear out the retreating platform for yourself in time, and always pay attention to the direction of the loading platform to avoid safety accidents.

3. Low-level loading operation skills (difficulty index

Low-level loading means that the dump truck is on flat ground and the excavator is in a low-lying pit. Due to the low position of the excavator, the fans cannot see the situation in the carriage, and can only estimate it with experience and feeling, so this loading method is the most difficult. Pay attention to safety when loading at a low level.

Low-level loading generally occurs in digging foundations, dredging and other working conditions, the greater the drop between the working plane of the excavator and the ground, the greater the difficulty of loading.

When loading, the large and small arms should be raised as much as possible to let the material slide down as evenly as possible. After the materials in the vehicle are accumulated, push back and forth with the bucket, and the car can basically be flattened.

Load the cart from the side, and put the little arm away when you put soil in the car! Don't forget to be quick when you put your forearm down! The retraction time is about half a second!

When loading large stones, it is difficult, first of all, use a gravel to pad the big box mat! Stones are not the same as soil, don't let them fall! A rock as big as a car box needs two excavators!

None of the things upstairs said well, and the key to the main problem of the building is the trick rather than letting you teach him how to move.

The key lies in the position relationship between the excavator and the slag truck.

1: If conditions permit, the position of the excavator is higher than the position of the slag truck.

2: The distance is that the excavator can be easily loaded into the front of the slag truck compartment.

3: If conditions permit, it is best to load and return the loading mode while loading. In this way, it is not necessary to dig back the swing time in the loading of the car.

Summary. 1. Shovel material, pay attention to the shovel along one side of the entire pile when shoveling the material, don't just blindly shovel a place, dig into a big hole, because then it is not good to shovel the material later. Some of the storage pile of the ground is not a cement floor, but also pay attention to the bucket do not press too low, there may be some places where the bottom of the ground is paved with construction waste, the bucket shovel is too low will bring the bricks into the material, causing unnecessary trouble.

2. Loading station: After the 8-wheeled truck comes, you can ask the truck driver to stop in a position suitable for loading, and they will generally cooperate. If conditions permit, let the truck stop next to the pile as much as possible, and let the loader finish shoveling the material and reverse the truck to go forward to load.

3. Loading: When loading the front 4 and 8 trucks, first install both sides, install both sides and finally install the middle. If you install the back first, you should install 2 buckets in front to hold the car, otherwise the car will be unbalanced and warped after the back.

When loading to the final cap, be careful not to load the loader next to one side full, the other side is not. The bucket can be pushed from one side of the loading to the other. Some truck drivers may need the top of the truck bucket to be flat, and the loader bucket to be placed on top of the bucket, and press down the lever that controls the operation bucket, and then run to that side to press if the other side is not pressed.

How to load a forklift and load a flat car.

1. Shovel material, pay attention to the shovel along one side of the entire pile when shoveling the material, don't just blindly shovel a place, dig into a big hole, because then it is not good to shovel the material later. Some of the storage pile of the ground is not a cement floor, but also pay attention to the bucket do not press too low, there may be some places where the bottom of the ground is paved with construction waste, the bucket shovel is too low will bring the bricks into the material, causing unnecessary trouble. 2. Loading station:

After the rear 8-wheeled truck comes, you can raise your head and ask the truck driver to stop in a suitable position for loading, and generally he will cooperate. If conditions permit, let the truck stop next to the pile as much as possible, and let the loader finish shoveling the material and reverse the truck to go forward to load. 3. Loading:

When loading the front 4 and then 8 trucks, first install both sides, install both sides and finally install the middle. If you install the back first, you should install 2 buckets in front to hold the car, otherwise the car will be unbalanced and warped after the back. When loading to the final cap, be careful not to load the loader next to one side full, the other side is not.

The bucket can be pushed from the only limb side of the loading car to the other side. Some truck drivers may need the top of the truck bucket to be flat, and the loader bucket to be placed on top of the bucket, and press down the lever that controls the operation bucket, and then run to that side to press if the other side is not pressed.

Hope mine is helpful to you.

A kind of small excavator hydraulic system comprises hydraulic pump and multi-way valve, described hydraulic pump comprises load sensing pump and main pump, the oil suction port of described negative bright pin load sensitive pump and the oil suction port of main pump are connected with hydraulic oil tank respectively, and the oil outlet of load sensing pump and the oil outlet of main pump are connected with actuator respectively through multi-way valve.

8.Preferably, the multi-way valve comprises a load-sensing control multi-way Jingxiang swim valve and a happy throttle control multi-way valve, the actuator comprises an actuator a and an actuator b, the oil outlet of the load-sensing pump is connected with the actuator a through the load-sensing control multi-way valve, and the oil outlet of the main pump is connected with the actuator b through the open-heart throttle control multi-way valve.

9.Preferably, the load-sensing pump is a load-sensing piston pump.

10.Preferably, the load-sensing pump comprises a plunger group, a power valve, a variable oil cylinder and a plunger pump, the variable oil cylinder is connected with the power valve, the plunger pump and the plunger group respectively, and the plunger group is connected with the oil outlet of the main pump, the oil outlet of the plunger pump and the power valve respectively.

11.Preferably, the actuator a comprises a rotary motor, a boom cylinder, a stick cylinder and a bucket cylinder.

12.Preferably, the actuator b comprises a left travel motor and a right travel motor.

The excavator practice is as follows, for reference:

After we determine the size of the excavator, we can make the plane structure of the excavator, or find an advertising design company to let them make the proportional size of the excavator according to our own standard size, and the requirement is to make the size of each part accurate, so that it can be matched in the later welding and installation process.

The most basic self-made excavator is to make the crawler foundation, first weld to make a track-like tank track, after the frame is welded, it is installed on the iron wheel, the frame is best cut and welded with steel, the iron wheel can be customized in the metal machinery factory, and the professional thing is handed over to the professional person to do.

After the iron wheel is done, the iron wheel is installed and welded to the frame, and after installation, we have to buy or make the track according to the size of the iron wheel.

The size and length of the track we must make according to the size of the iron wheel and the length of the body, if you will not do the track can be outsourced to make, if you can do it, then we cut and weld each small track according to the size of the iron wheel according to the structural drawing, and finally connect it together with welding and fasteners, after the track is made, we will install the track on several iron wheels.

After making the excavator frame, we need to customize a large gear for the connection between the base and the rotating body of the excavator, and then the rotating body of our excavator needs to be loaded with a powerful diesel engine and excavator arm.

Engine, excavator arm and digging pocket we can buy or our own in addition to the engine, we can make our own digging arm and digging pocket, digging pocket is actually the simplest, it will be welded after a while, it depends on yourself.

Hands-on ability is good, you can be in addition to the core components of the simple shell and body and digging arm, etc., you can make your own according to the structural drawing, so that you can save money, you can also reflect the ability of self-made, after doing a good job is to carry out the excavation experiment, anyway, the principle of air pressure, lever and so on will definitely be used, and strive to make your own excavator, digging the soil is exuding fragrance.

If you want not to load the car is actually very simple, that is, when you lift the loading of the boom, the car should try to drive a little in front of the truck, but pay attention to safety and pay attention not to collide. When the carriage is slightly sharpened, you put a shovel of material on the top, at this time the big arm has risen to the bottom, and you slowly walk forward a little bit of shaking the bucket in first gear, so that the excess material will not spill on your side, just enough to fill the opposite compartment, there may be more when there will be spills on the opposite side. This requires you to flexibly grasp how much material shovel is needed to see how much material is needed for the tip of the car, and generally when you pick up the tip, the excess material will be in the bucket, which will not cause too much spillage.

I don't know what your loading habits are, just sent to you on the connection with the installation of the rear eight wheel dump and the front four after the eight loading method, may be able to reduce your loading time, I hope it will help you.

The assembly process of the excavator is as follows:

1) Before disassembling and installing, fix the structure and working device, list the parts one by one and prepare them.

2) When assembling all metal parts, they must be cleaned with synthetic cleaners. Before the mating surface of the part is assembled, it must be coated with grease or hydraulic oil to make the assembly smooth and prevent rust.

4) Place the disassembled parts in the appropriate order, mark the interconnected parts to ensure correct assembly.

5) If a part cannot be separated smoothly, before using greater force to disassemble, you should check whether there are bolts, nuts that are not disassembled, or whether there is interference with adjacent parts.

6) When hitting the parts, be sure to pad a wooden or plastic hammer, and absolutely avoid hitting the parts directly with a hammer.

7) Before assembling the hydraulic components, they should be cleaned first, and the adjacent parts should also be cleaned. Cover the oil port with caps, fittings, nuts, etc., to prevent foreign objects from entering.

8) When lifting a heavy part, apply the lifting equipment and keep the balance.

7) Check each part for damage, failure and wear, etc., and repair or replace if necessary.

9) Assembly or disassembly of hydraulic components must be carried out in a clean site. Before assembly, each part must be cleaned with detergent and dried with compressed air, avoiding the use of cotton yarn or cotton cloth. All used O-rings must be replaced.

I don't know what you're talking about.

Generally speaking, the upper body and cab on the assembly line are assembled first, then combined with the chassis, and finally installed counterweights, cylinders, and working devices.

This question is not clear to you for a while, I work in Kobelco excavator and understand the corresponding production process 415028619

The loader loads both sides of the truck to fill one side and push things to the opposite side.

The loader is mainly used to shovel, load, unload, transport bulk materials such as soil and stone, and can also carry out light shoveling operations on rocks and hard soils. If you change to a different working device, you can also complete the work of bulldozing, lifting, loading and unloading other materials. In highway construction, it is mainly used for filling and excavating subgrade engineering, aggregate and loading of asphalt and cement concrete yards.

Because it has the advantages of fast speed, good mobility and light operation, it has developed rapidly and has become the main machinery in earthwork construction.

Loader selection principle:

1. Selection of models: mainly according to the operation occasion and use for selection and determination. Generally, the operation is carried out in quarries and soft bases, and crawler loaders are mostly used;

2. Power selection: generally use diesel engines for construction machinery, and special high-prototype diesel engines should be used for operations in special areas, such as places where the altitude is higher than 3000m;

3. Selection of transmission type: hydraulic - mechanical transmission is generally selected. The key component is the choice of the torque converter form. Loaders produced in China mostly use twin-turbine and single-stage two-phase torque converters.

4. When selecting the loader, the braking performance of the loader should be fully considered, including multiple braking, parking brake and emergency braking. There are three types of brakes: hoof, caliper disc and wet multi-plate. The driving mechanism of the brake generally adopts afterburner device, and its power source has three types: compressed air, air top oil and hydraulic type.

The commonly used is the air top oil braking system, which generally adopts a dual-circuit braking system to improve the safety of driving.