Shandong China Coal Mining Group Co., Ltd. is an enterprise specializing in the production of railway machinery. The company has a strong technical force and can design, develop and mass-produce various railway equipment products. The steel rails and railway parts were put on the domestic market in 2002 and have been certified by the National Railway Supplies Quality Control Center.
Concrete sleeper can be used to make wooden sleepers in many types of wood. Wooden sleepers are rich in toughness and can absorb the weight generated by trains better than other sleepers and are not easy to break. Good elasticity, light weight, simple production and good insulation performance. Fasteners and wooden sleepers are simple to connect, convenient for laying, maintenance, and transportation. There is a large friction coefficient between wooden sleepers and gravel ballast.
The allowable wear limit of the rail head is mainly determined by the strength and construction conditions. That is, when the rail wear reaches the allowable limit, one is to ensure that the rail has sufficient strength and flexural rigidity; the other is to ensure that the wheel flange does not collide with the joint splint under the most unfavorable conditions. In the "Rules for Railway Line Maintenance", the rail heads are divided into two categories, light injuries and severe injuries, according to the degree of wear and tear of rail heads. The corrugated rail is a lightly damaged rail if the loss of the corrugated rail is more than 0.5mm.
In order to ensure that the rail track lifting and lining machine is flexible and reliable every time it is used, effective maintenance and periodic inspection of the rail track lifting and lining machine must be carried out.
The ND-4.2X2 internal combustion high-frequency railway tamping machine is a new type of railway maintenance machinery, which is suitable for the maintenance and construction of unilateral railway lines without power supply, and can also be used for the maintenance of turnouts.
The rail cutting machine is a self-developed generation of rail cutting machine based on the original rail cutting machine, according to the actual requirements of the site construction unit, greatly reducing the weight and increasing the cutting speed; it is ideal for railway engineering, bridges, line overhaul and other departments. Rail cutting tool.
Turnouts play a key role in many railway tracks. Turnouts with better quality can be used as multiple rails in use, which can reduce the manpower, material and financial resources spent on railway construction to a certain extent. The switch occupies such an important position in use, so what is the working principle of the switch? Let's learn about it with the railway and coal mine switch manufacturers.
In the face of the current difficult economic situation, Xin Iron Mine has tried its best to save and tap the potential, build a self-made concrete sleeper base in the transportation area, and process 70 sleepers a day, which has become a benefit growth point for the enterprise's connotative efficiency improvement development.
The main structural features of the YQB-400 hydraulic rail track lifting and lining machine: The rail track lifting and lining machine adopts manual operation, no other power consumption is required, and the upper hook of the machine is mainly driven by the manual lever to move up and down, so as to play the role of the track, and the structure is reasonable. It is easy to carry and is a practical machine.
