Little knowledge about excavator work-working arm and working environment

1. Why is an excavator not called an excavator?

Every day the excavators we see are all excavating soil, sand and gravel, but excavators can not only excavate, but can also replace the working device head and perform other operations. Therefore, excavators cannot be called excavators singly, such as the following

1. Grab

An excavator using a grab bucket can carry out material grabbing operations.

2. Breaking hammer (also known as impact drill)

Excavators using percussion drills can perform stone excavation, stone crushing, and building demolition operations.

Excavator breaker

3. Ripper

Excavators using rippers can excavate cracked rocks, crush frozen soil, and excavate asphalt roads.

Ripper

4. Hydraulic shears

Excavators using hydraulic shears can be used for demolition and rescue operations.

2. Will people get an electric shock if the excavator digs into the cable?

During the construction process, there are often accidents of excavators digging and breaking cables.

But the fact is that if the excavator digs into the cable, the operator in the car will not get an electric shock.

The reason is that the excavator is an "equipotential body". After the boom touches the high-voltage line, the entire vehicle is charged, and the operator also has high-voltage electricity. However, because the electric potential in the vehicle is equal, the people in the vehicle cannot form a voltage even Electricity is the same as a bird on a telephone pole, so there is no electric shock.

However, people near the excavator may be in danger of electric shock. After digging the cable, if the operator gets off the car rashly, it is also very likely to get an electric shock!

安全第一

The correct method after digging the cable: immediately turn off the power of the excavator and stop the operation, and signal the surrounding people not to approach, and wait for the rescue team to get off after the arrival.

3. Why does the excavator only have a single arm?

Excavator is a kind of mechanical equipment with complex structure and difficult operation.

Therefore, at the beginning of the design of the excavator, a boom is sufficient to meet most of the construction needs, and the operation of a single-arm excavator requires the operator to learn for a period of time before mastering it.

At present, there are also special double-arm excavators, which are mainly used for intermediate processing procedures of industrial waste and rubble processing operations in disaster-stricken areas.

However, the double-arm excavator has very high requirements for the driver's operating level, and it may require specialized personnel to operate it.

4. How did the excavator that demolished the building climb to the top of the building?

The excavator for demolition work starts from the top of the building and works layer by layer to demolish the building.

At this time, the excavator was not driven upstairs, but was hoisted up to the roof by a large crane.

5. Why is the excavator still using the joystick?

The reason that most excavators still require the operator to use the joystick is that driving an excavator is a craft that requires experience. Many construction site conditions are complex and the construction requirements are high. For example, the error required for leveling the site is only 5 cm. , And the one-key setting of the operating procedure is currently difficult to achieve random and accurate, so the use of the operating lever can better perform operations according to the working conditions and construction requirements.

6. What should I do if the excavator gets stuck?

After the excavator gets stuck in a car accident, you should not move blindly, otherwise it will sink deeper and deeper.

The correct approach is:

1. If the excavator is very close to the shore, straighten the forearm, use the bucket to hook out the hard ground on the shore, and use the bucket to pull the excavator a little bit.

2. If the excavator is not sinking deep, you can find steel plates, planks, logs and other items nearby to pad under the chain belt of the excavator, so that the excavator can drive out.

3. If the vehicle is severely trapped or self-rescue fails, do not take any action, hurry up and find a crane or large excavator to rescue.