Home » News » FAQ » Improvement of tramcar traction mode
Improvement of tramcar traction mode
Views: 0 Author: Site Editor Publish Time: 2022-09-26 Origin: Site
The old tramcar traction mode is to pull the screw through the contact to transfer the force to the hook frame, and drive the motor car through the hook frame. The most vulnerable parts are the screw and nut for pulling the screw. The screw diameter is 50mm, and M48 is equipped × 4. Nuts and screws mainly bear axial tension. The maximum traction force of the tramcar is 60 kN. After flaw detection, the screw can fully bear the tension if there is no internal crack or damage. However, due to the limitation of processing quality, the force between the screws after tightening is often uneven. If the force bearing part is small, the wire may fall off.
The traction device of the new mining car has changed the style of the head and the end bracket. The head is connected with the end bracket and the car body through the traction pin shaft. The lower part of the end bracket is square box type, which can not only be used as the bearing part of the buffer spring, but also increase the contact area with the traction pin shaft. The end bracket and the car body are riveted together. The traction force is transmitted to the end bracket through the head and the pin shaft to drive the car body to run. Among the main force bearing components, the weakest link is the traction pin, which is made of 45 # steel with a diameter of 50 mm. The shear force it can withstand is about 600 kN, which is far greater than the maximum traction force borne by the tramcar. It fully meets the mine safety requirements. Therefore, the tramcar will not drop due to the damage of the traction device during its operation. At the same time, the coupler frame, pull screw and other components are omitted, saving production costs.
At present, there are many kinds of trams for ore transportation in domestic mines, and large and medium-sized mines tend to use bottom dump and bottom side dump trams for transportation. Compared with other types of tramcars, these two types of tramcars can realize continuous loading and unloading
Good morning, young friends! Next, the small editor is ready to explain the relevant contents of the single hydraulic prop for the small friends. The small friends are also deeply impressed with the single hydraulic prop. I still hope that this explanation will bring some gains to my friends1. For n
In order to make the hydraulic acrow props work stable, give full play to the efficiency of the equipment, and extend the service life, in addition to strictly complying with the operating procedures, it is necessary to strengthen daily maintenance.Precautions for maintenance and management of singl
Shandong China Coal Mining Support Equipment Co., Ltd. was founded in the 1990s with more than 1100 employees. It now has 53 professional companies, 3 Hong Kong companies, 1 British Cayman company and 1 American company. It is a large diversified industrial group integrating intelligent equipment manufacturing, e-commerce, software research and development and intelligent logistics, which is cultivated and supported by the Ministry of industry and information technology, the Ministry of Commerce, the development and Reform Commission, Shandong Province and Jining City.
