Views: 0 Author: Site Editor Publish Time: 2022-09-26 Origin: Site
The single rod spring buffer frequently used by tipper tramcars is mainly composed of pins, heads, end brackets, pull screws, springs, hook frames, fastening nuts and other components. The specific structure is that the buffer head is connected with the end bracket through the T-shaped square head of the traction bolt, the traction bolt and the double nut are connected with the frame fixed on the frame, and the buffer spring is installed between the coupler frame and the head. The shape of the contact is spherical, which can prevent the contact from embedding and overlapping each other, resulting in derailment. The contact of the tramcar in operation is point contact in any direction, and the action is flexible. The screw is a T-shaped square shaft passing through the contact head, which can avoid breaking the screw when the contact head and the screw are manufactured as a whole due to the gap between the square head and the square hole. During the transportation of the tramcar with this type of traction buffer device, the traction force is transmitted to the hook frame through the head and the pull screw to drive the whole tramcar forward. The parts of traction force are mainly the head and the pull screw. During the repeated pull collision, the fastening nuts of the pull screw will be damaged due to uneven force. After a long time of accumulation, combined with the heavy moisture in the underground tunnel, the corrosion phenomenon is relatively serious, When the thread damage accumulates to a certain extent, when the fully loaded tramcar is suddenly pulled by a strong force, the wire will fall off, causing a car falling accident, affecting the orderly progress of underground production, and even causing personal injury to underground personnel in serious cases.
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.
