Loader use, how the loader works

Loader is a kind of earthwork construction machinery widely used in highways, railways, construction, hydropower, ports, mines and other construction projects, it is mainly used for shoveling soil, sand, lime, coal and other bulk materials, but also for ore, hard soil and other light shoveling operations. Replacement of different auxiliary work units can also be used for bulldozing, lifting and loading and unloading of other materials such as timber. In road construction, especially in high-grade highway construction, loaders are used for filling and excavating subgrade engineering, aggregate and loading of asphalt mixture and cement concrete yards.

In addition, it can be used to push soil, scrape the ground and tow other machinery. Because the loader has the advantages of fast speed, high efficiency, good mobility and light operation, it has become one of the main types of earthwork construction in engineering construction. That's all for it, maybe some places don't go into detail enough!

Each brand and model is different, and the function of each category of loader can be found on the China Electromechanical Data Network! I won't talk about it here! Because there are too many pure handwriting, non-copy-paste, forget to give points, I hope you can have a deeper understanding!

Thank you. Hope it solves your problem.

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.

The loader's shoveling and loading and unloading operations are achieved by the movement of its working device. The loader working device is composed of bucket boom, connecting rod, rocker arm and bucket oil boom cylinder. The entire working device is hinged to the frame.

The bucket is articulated to the bucket cylinder by means of a connecting rod and rocker arm to load and unload material.

The boom is hinged with the frame and boom cylinder to lift the bucket. The turning of the bucket and the lifting of the boom are hydraulically operated.

When the loader is operating, the working device should be able to ensure that: when the bucket cylinder is locked and the boom cylinder is lifted or landed, the connecting rod mechanism makes the bucket move up and down or close to translation, so as to avoid the bucket tilting and scattering materials; When the boom is in any position and the bucket rotates around the hinge point of the boom for unloading, the bucket inclination angle is not less than 45°, and the bucket can be automatically flattened when the boom descends after unloading.

According to the different number of components of the connecting rod mechanism, it is divided into three-rod type, four-bar type, five-bar type, six-bar type and eight-bar type; According to whether the steering of the input and output rods is the same, it is divided into forward and reverse linkage mechanisms.

The bucket structure of the loader for earthwork is often made of low-carbon, wear-resistant and high-strength steel plate welding, the cutting edge is made of wear-resistant medium manganese alloy steel, and the side cutting edge and reinforcing angle plate are made of high-strength wear-resistant steel material.

There are four types of bucket cutter shapes. The tooth profile should be selected taking into account factors such as insertion resistance, abrasion resistance, and ease of replacement. The tooth shape is divided into sharp teeth and blunt teeth, and the tire loader mostly uses sharp teeth, while the crawler loading and start-up machine mostly uses blunt teeth.

The number of bucket teeth depends on the bucket width, and the bucket tooth distance is generally 150-300mm.

The bucket tooth structure is divided into two types: integral and split, small and medium-sized loaders mostly use integral type, while large loaders often use split type due to poor operating conditions and serious bucket tooth wear. The split bucket tooth is divided into two parts: basic tooth 2 and tooth tip 1, and only the tooth tip needs to be replaced after wear.

Loaders can be divided into: power system, mechanical system, hydraulic system, control system. As an organic whole, the performance of the loader is not only related to the performance of the mechanical parts of the working device, but also related to the performance of the hydraulic system and control system.

Power system: The original power of the loader is generally provided by the diesel engine, which has the characteristics of reliable operation, hard power characteristic curve and fuel economy, which meets the requirements of the loader with harsh working conditions and changeable loads. Mechanical system:

It mainly includes walking gear, steering mechanism and working device. Hydraulic system: The function of the system is to convert the mechanical energy of the engine into hydraulic energy with fuel as the medium, and then transfer it to the oil cylinder and oil motor into mechanical energy.

Control system: The control system is the system that controls the engine, hydraulic pump, multi-way directional valve and actuator. The hydraulic control drive mechanism is a device that converts the electrical energy or mechanical energy of small power into hydraulic energy and mechanical energy of powerful power in the hydraulic control system.

It consists of hydraulic power amplification elements, hydraulic actuators, and loads, and is at the heart of static and dynamic analysis in hydraulic systems.

Forklift = loader.

The main accessories such as the engine, transmission and drive axle of the loader industry are relatively mature and easy to purchase, while the loader product technology is almost completely disclosed, and there are few intellectual property barriers such as patents, all kinds of factors have led to the low entry threshold of the main engine production, so that the difficulty of small and medium-sized investors to participate in the production of loaders is greatly reduced.

In a fully competitive market environment, after years of development, the main domestic loader manufacturers have become more and more abundant, and on the basis of expanding production capacity, their financing capacity and strength have also been significantly enhanced.

Now it's time to take the loader certificate or the forklift certificate. The salary is high.

Summary: What are the loader accessories? A lot of people don't know.

We need to understand what accessories are needed for the loading mechanism in Chengdu, so that we can easily eliminate them when there is a failure. When the old forklift driver takes the apprentice, he only tells the apprentice the skills and precautions for using the loader. So let's take a look at what are the loader accessories and forklift loader accessories.

Loader parts] What are the loader parts, forklift loader parts.

Forklift loader accessories.

There are many loader accessories, and all kinds of parts and wear parts belong to loader accessories. Such as instrument cluster, loader front, loader seat, water choke, loader accessories fuel tank, air cleaner, intake and exhaust valves, cab assembly, fan blades, loader transmission pump, loader steel rim, loader steering wheel, loader shovel teeth, steering gear, master and slave spiral bevel gear, intermediate support seat, brake fluid cup, brake disc, fuel tank cover, oil-water separator, oil cylinder assembly, priority valve, instrument workbench assembly, pressure regulating valve, four matching, camshaft, eccentric shaft, tire screw, gearbox gear, oil dispersion assembly, S-type rocker arm, loader solid tires, etc., the main components of the liquid Yuanqingju loader are listed below.

What are the main accessories of the loader.

Main components: including engine, torque converter, gearbox, front and rear drive axle, referred to as four parts.

1. Engine.

2. There are three pumps on the torque converter, the working pump (lifting, tipping pressure oil) the steering pump (the steering pressure oil) and the variable speed pump are also called the walking pump (the torque conversion alarm, the gearbox pressure oil), and some models of the steering pump are also equipped with a pilot pump (** control valve pilot pressure oil).

3. Working hydraulic oil circuit, hydraulic oil tank, working pump, multi-way valve, lifting cylinder and dump bucket cylinder.

4. Walking oil circuit: transmission oil pan oil, walking pump, all the way to the torque converter, all the way to the gear valve, and the transmission clutch.

5. Drive: drive shaft, main differential, wheel reducer.

6. Steering oil circuit: chamber balance oil tank, steering pump, steady flow valve (or priority valve) steering gear, steering cylinder.

7. There are two kinds of loader gearboxes: integrated (planetary type) and split (fixed shaft type).