Views: 0 Author: Site Editor Publish Time: 2022-09-27 Origin: Site
The bearing adopts ordinary tapered roller bearing. Although the bearing capacity and axial thrust capacity are high, the anti seize property of this bearing is very poor. Once mud and water are immersed in the bearing during use, the bearing pipeline will be blocked, bearing lubrication will be damaged, and the bearing will be damaged quickly. After the inner seal ring of the wheel set is worn, the muddy water enters the bearing, causing large area corrosion of the inner and outer rings of the bearing; When the tramcar travels on the uneven track, it generates vibration, which causes additional impact load and aggravates the bearing wear. The fit between the shaft and the bearing is generally interference fit. Although it is tight, the frequent action of concentrated stress on the inner ring of the bearing leads to the wear of the inner ring of the bearing, which makes the bearing scrapped. In serious cases, the wheels are dragged to death, causing a rollover accident.
Recently, the Jining High-tech Zone General Trade Union and the Human Resources Department of Jining High-tech Zone jointly announced the 2024 'High-tech Craftsman' list. Li Zhenbo, General Manager of Information Technology at China Coal Group and General Manager of Zhongyun Group, was awarded the title of 'High-tech Craftsman' for his outstanding contributions and innovative spirit.
On September 30th, China Coal Group held a grand cultural performance to celebrate the 75th anniversary of the founding of the People's Republic of China with the theme of 'Forging Ahead to Celebrate the Birthday of the People's Republic of China' in the conference center. The chairman of China Coal Group, Mr. Qiu Qing, the general manager of China Coal Group, Mr. Han Yong, and all the members of the leadership team of China Coal Group attended the event and witnessed the grand celebration together with more than 1,000 employees on the spot. The cultural performance was conducted in the way of 'on-site + webcast', aiming to show the spirit of the cadres and workers of China Coal Group and express the love and blessing to the great motherland through colorful cultural programs.
On September 29th, in this season of autumn and fruitfulness, China Coal Group, full of joy and pride, participated in the ‘Harvest Celebration and National Day’, which was jointly organized by Jining Hi-Tech District Federation of Trade Unions and Jiezhuang Street to welcome the 75th anniversary of the founding of New China and the Farmer's Harvest Festival.
