Loader Working Device

The working device of the loader consists of a bucket, a boom, a connecting rod, a rocker arm, a bucket cylinder, and a boom cylinder.

The digging and loading and unloading operations of the loader are realized through the movement of its working device. The working device of the loader consists of a bucket, a boom, a connecting rod, a rocker arm, a bucket cylinder, and a boom cylinder. The entire working device is hinged to the frame.

The bucket is hinged with the bucket cylinder through the connecting rod and the rocker arm for loading and unloading materials. The boom is hinged with the frame and the boom cylinder to lift the bucket. The tipping of the bucket and the lifting of the boom are hydraulically controlled.

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

Based on the structural types of loader working devices at home and abroad, there are mainly seven types, that is, according to the number of components of the linkage mechanism, they are divided into three-bar, four-bar, five-bar, six-bar and eight-bar, etc.; According to whether the steering of the input and output rods is the same, it is divided into forward rotation and reverse rotation linkage mechanisms.

The bucket structure of the loader for earthmoving works. The bucket body is usually welded with low carbon, wear-resistant and high-strength steel plates. The cutting edge is made of wear-resistant medium manganese alloy steel. Made of ground steel. Cab lock.

There are four types of bucket cutters. The selection of tooth profile should consider factors such as insertion resistance, wear resistance and ease of replacement. Tooth-shaped sub-tines and blunt teeth, tire loaders mostly use tines, and crawler loader mostly use blunt teeth. The number of bucket teeth depends on the bucket width, and the bucket tooth pitch is generally 150-300mm.

Bucket tooth structure is divided into two types: integral type and split type. Small and medium-sized loaders mostly use integral type, while large-scale loaders often use split type due to poor working conditions and serious wear of bucket teeth. The split bucket teeth are divided into two parts: basic tooth 2 and tooth tip 1. After wear, only the tooth tip needs to be replaced. Loader special working device

1. Increase the bucket

On the basis of the standard model configuration, the bucket capacity is increased to improve the work efficiency and meet the shovel loading of lighter materials, such as coal, etc.

2. Rock King

Mainly for rock loading and unloading conditions, the bucket arm plate and support plate bucket have been strengthened, and equipped with high wear-resistant auxiliary blade and high wear-resistant precision casting bucket teeth, thus improving the service life of the entire bucket.

3. High discharge

It can meet the increasing fence height of trucks. For materials with low specific gravity such as coal, it can meet high unloading and large loading capacity, which greatly improves work efficiency.

4. Side dump bucket

For the working device with narrow site, especially in tunnel operation conditions, the bucket can roll over in one direction, which can effectively reduce the labor intensity of the driver during tunnel operation.

5. Wooden fork

Mainly used for material handling and loading and unloading in forest farms and ports.

6. Quick change device

It is mainly aimed at the working environment where various materials need to be loaded and unloaded in the workplace. The driver can quickly replace the working device while sitting in the cab. It is easy to use and has high working efficiency. The replaceable working devices include: bucket, wooden fork Wait.

7. Grab bucket

It is mainly used for grasping plant straws, etc. It has the characteristics of large opening, tight compaction and high grass grasping efficiency.