Medium and double chain scraper for coal mine is a commonly used material transport equipment in coal mine production, which has the features of strong carrying capacity, strong adaptability and smooth operation. The following is a detailed introduction of the middle and double chain scraper for coal mine:
1. Definition and function
Definition: middle and double chain scraper machine for coal mine is a kind of scraper conveyor with middle and double chain design, which is mainly used in underground coal mine or other occasions that need to transport bulk materials continuously.
Function:
- Continuous transport: through the continuous movement of the middle-double chain scraper chain, bulk materials such as coal, gangue, etc. are transported from one place to another.
- Strong load-bearing capacity: the design of middle-double chain enhances the load-bearing capacity of the scraper, which is suitable for transporting large quantities and heavy loads of materials.
- Strong adaptability: it can adapt to the complex and changeable working environment of underground coal mine, such as inclined roadway and curved roadway.
2. Structure and composition
The middle and double chain scraper for coal mine is mainly composed of the following parts:
- Machine head: including electric motor, reducer, transmission device, etc., providing power for scraper chain.
- Middle groove: connected by several grooves, it is the main part of the scraper machine, used to support the scraper chain and transport materials.
- Middle double chain scraper chain: composed of two chains and scrapers, with scrapers fixed on the chains, used for scraping transport and transporting materials.
- Tail part of the machine: including sprocket wheel, tensioning device and so on, used for adjusting the tensioning and guiding of the scraper chain.
In addition, the scraper may also include telescopic tail, power section, transition groove, deflection groove, adjustment groove, cable groove and other auxiliary parts to ensure the normal operation of the scraper and adapt to the needs of different working environments.
3. Working Principle
The working principle of coal mine middle and double chain scraper machine is: when the head drive part starts, it drives the sprocket on the head shaft to rotate, so that the middle and double chain scraper chain circulates in the middle groove. The scraper on the scraper chain scrapes the material from the head of the machine and transports the material to the tail of the machine with the movement of the chain to complete the whole conveying process. The scraper chain goes around the sprocket wheel to carry out stepless closed-loop operation to achieve continuous conveying of materials.
4. Features and advantages
- Strong load carrying capacity: the middle and double chain design makes the scraper have higher load carrying capacity and stability, which can meet the demand of large quantity and heavy load material transport.
- Strong adaptability: it can adapt to the complex and changeable working environment of underground coal mine, such as inclined roadway, curved roadway, etc., meanwhile, it has strong anti-impact and wear-resisting ability.
- Smooth running: through precise transmission device and tensioning device, it ensures that the scraper chain stays smooth and stable during operation, reducing vibration and noise.
- Convenient maintenance: the structure of scraper is relatively simple, easy to maintain and overhaul, reducing the maintenance cost and time.
5. technical parameters
The technical parameters of coal mine medium and double chain scraper may vary depending on the model and manufacturer. Generally speaking, its technical parameters may include design length, conveying capacity, chain speed, installed power, circular chain specification, middle groove specification and so on. The specific parameters should be based on the actual demand to choose the suitable scraper model and manufacturer.
6. Application examples
Coal mine middle and double chain scrapers are widely used in underground transport systems of various coal mines, such as coal mining, roadway excavation, working face advancement and other occasions. They not only improve the efficiency and safety of coal mine production, but also reduce the labour intensity and cost of workers.
7. Maintenance and upkeep
In order to ensure the normal operation and prolong the service life of the middle and double chain scraper for coal mine, regular maintenance and repair work is required. This includes checking the looseness of the scraper chain, the looseness of the fasteners, the lubrication status of the transmission device and so on. When serious wear or damaged parts are found, they should be replaced or repaired in time. In addition, it is also necessary to keep the scraper clean and dry to prevent the effects of corrosion and rust on its performance.
In summary, the coal mine medium double chain scraper is one of the indispensable and important equipments in coal mine production, and its structural design and functional features are optimised for the specific working environment and needs of coal mine. In the process of use, it needs to pay attention to the maintenance and repair work to ensure its normal operation and prolong its service life.