Liugong loader: Can pick "hard bones" of iron teeth!

Recently, the high-performance new teeth of the loader, jointly developed by the Liugong Research Institute New Materials Research Institute Materials Group and the Joint Loader Research Institute Structural Parts Institute, have been successfully applied to the purchase of the South African manganese ore customer CLG888 loader and became a hit. ". This high-performance, new tooth has a working life of 290 hours, while the customer's matching teeth working life at the mine is approximately 170 hours. The customer in South Africa's mining area is very satisfied with the performance of Liugong High-performance new tooth teeth, and immediately put forward the idea of ​​long-term procurement.

Liugong loader: Can pick "hard bones" of iron teeth!

Old puzzles spark new research

In 2012, Liugong's loader tooth tooth early feedback rate is slightly higher, the customer is not satisfied with the tooth quality. In 2013, under the leadership and organization of Liugong’s leadership, the Liugong Research Institute New Materials Research Institute Materials Group and the Joint Loader Research Institute Structural Parts Institute formed a bucket tooth project team to collect early failure cases of bucket teeth, and Systematic analysis of the type and characteristics of tooth failure, and through the use of CAE simulation and analysis techniques, improves the bucket teeth of the loader and minimizes the feedback rate of early failure of bucket teeth in the loader.

Tooth

Although some improvements have been made, the tooth project team has realized that it is not enough to solve the problem of fracture failure at the early stages of the bucket teeth. Compared with the teeth of benchmarking companies, the teeth of Liugong's bucket teeth are still not solved. In 2014, the project team conducted research on the chemical composition of materials, mechanical properties of materials, and wear resistance of materials. Under the leadership of senior technical expert Meng Qiuhong, the project team established a school-enterprise cooperation with Sichuan University to resist the material of bucket teeth. Grinding conducts in-depth basic theoretical research.

Liugong loader in operation

The tooth tooth project team has applied micro-alloying technology to the development of tooth materials through multiple trials and comparisons, and successfully developed a multi-component composite micro-alloyed tooth wear-resistant material formula and provided a heat treatment process that matched it. . After successful trial production of the new material tooth, the work life test was conducted on the same stage as the competitors' bucket teeth. The wear life of the new material bucket teeth reached the same level as the industry's top teeth. However, the sales price of the top teeth in the industry is actually 8-10 times the sales price of Liugong teeth. It can be said that the Tooth project team achieved a milestone breakthrough.

New tooth work long life

The development of new tooth materials has strengthened the idea and determination of the Tooth project team to develop new series of Liugong teeth. From 2015 to 2016, the Tooth Project team visited more than 10 operating sites such as quarry, sand mining site, tunnels, cement mines, and iron ore mines, and found that the life span of bucket teeth is as much as 20 times different under different working conditions. The tooth project team collects and analyzes the force characteristics and wear characteristics of loader teeth under different working conditions, and develops universal teeth, heavy-duty teeth, and penetrations that are applied to different working conditions. Type teeth.

New tooth

The universal new tooth is installed at Liugang Mining Company and its working life is 2.8 times of the existing tooth. The heavy duty new tooth is installed at the Fufeng Heidelberg cement mine in Shaanxi, and its working life is 2.34 times that of the existing tooth. Penetration-type new teeth in the Hunan Railway 18th Bureau Zhang Chang-Chang Railway Tunnel installed test, the new tooth has been used for 1500 hours, is still a good performance, and the existing bucket teeth in this working life is only 600 hour.

Equipment in construction

The successful development of the high-performance new tooth marks the “iron teeth” of the Liugong loader and is capable of meeting the challenges of various harsh working conditions, and the working life is greatly increased.

Enter the application promotion stage

Liugong's new tooth has not yet been introduced to the market, it has already won the trust of customers. There are steelyard scales in the customer's mind. As the main wearing parts of the working device, the application of high-performance new teeth can directly reduce the maintenance cost of bucket teeth by more than 50% and create real profits. Liugong's new tooth shows excellent wear resistance in the testing stage of the machine. In the customer's mind, it is deeply impressed with the high-performance branding of the Liugong brand.

Bucket teeth close-up

Iron teeth

High-performance new teeth gearing for various working conditions has now entered the Liugong application promotion stage. This year will be the first to be promoted on the CLG877, CLG888, and the CLG890 large-scale loaders, and will be gradually promoted to other series of loaders and accessories markets. Liugong New Tooth has excellent cost performance and strong market competitiveness, which will certainly provide strong support for Liugong's high quality products. (This article comes from Liugong Research Institute Xiao Yiqiang)