What is an Excavator?

Feb. 20, 2020

Excavator, also known as excavator, is also an earthmoving machine that uses buckets to dig materials that are above or below the bearing surface and load them into transport vehicles or unload to the stockyard. The materials excavated by the excavator are mainly soil, coal, sediment, and pre-loose soil and rock. Judging from the development of construction machinery in recent years, the development of excavators is relatively fast. Excavators have become one of the most important construction machinery in engineering construction. The three most important parameters of an excavator: operating weight (mass), engine power and bucket capacity.



Common excavator structures include power units, work units, turning mechanisms, operating mechanisms, transmission mechanisms, walking mechanisms, and auxiliary facilities. The transmission mechanism transmits the power of the engine to the hydraulic motor, hydraulic cylinder and other executive components through the hydraulic pump, and pushes the working device to complete various tasks. The traveling device is the chassis, including the crawler frame and the traveling system. It is mainly composed of a crawler frame, a traveling motor + a reducer and its pipeline, a driving wheel, a guide wheel, a supporting sprocket, a track roller, a track, and a tension buffer device. The function is to support the weight of the excavator and convert the power transmitted by the driving wheels into traction to realize the walking of the whole machine. The frame assembly (that is, the crawler walking frame assembly) is an integral weldment and adopts an X-shaped structure. Its main advantage is its high load carrying capacity. The central swivel joint is a hydraulic component that connects the swivel platform to the oil circuit of the chassis. After the platform rotates at any angle, the travel motor can still distribute oil normally. The current rotary joint is 5-way. The working device is the main component of the hydraulic excavator. At present, the SY series of excavators are equipped with a backhoe working device. It is mainly used to dig soil below the stopping surface, but it can also dig soil below the maximum cutting height. In addition to trenching, loading, simple leveling work can be performed. The excavation operation is suitable for excavating grade Ⅰ ~ Ⅳ soil. Hydraulic hammer or blasting method is required for grade Ⅴ and above. The backhoe working device is composed of a boom, an arm, a bucket, a rocker, a connecting rod, and hydraulic lines of the working device including a boom cylinder, an arm cylinder, and a bucket cylinder.

So how should the excavator be maintained? Now Wheel Loader China Manufacturer can introduce some points to you.

The purpose of performing regular maintenance on the excavator is to reduce machine failures, prolong machine life, shorten machine downtime, improve work efficiency, and reduce operating costs.

By managing fuel, lubricants, water, and air, you can reduce failures by 70%. In fact, about 70% of failures are caused by poor management.

In addition, daily inspections are also essential:

Visual inspection: A visual inspection should be performed before starting the locomotive. Completely check the surrounding environment and the bottom of the locomotive in the following order:

1. Whether organic oil, fuel oil and coolant leak.

2. Whether there are loose bolts and nuts.

3. Whether there is any wire break, short circuit and loose battery connector in the electric circuit.

4. Whether there is oil pollution.

5. Whether there is accumulation of civilian objects.

The above is the knowledge about excavators introduced by Crawler Dozer Supplier.

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