For the plate conveyor chain tank and frame number of studies
Scraper conveyor chute chute is a major component, quantity, tonnage, work process under a lot of pressure and friction. Therefore, according to the working conditions of stress
analysis, continuous improvement of its structure, materials and processes, improve their work performance and extend its life and improve working
For efficiency has important significance.
In the course of their work scraper conveyor, scraper chain cargo loading and running in the chute, and the sliding friction between the big chute, chute chains to the place and hot water heat exchanger
in the plate badly worn. In addition, mechanized coalface, scraper conveyor and shearer with the work, and also to help the chute groove
For Shearer's orbit, under a lot of pressure and friction Shearer movement, so that the top flange of the chute tank to help badly worn. Therefore, in the design of the chute,
in the material, severe wear to the working position, be pressed efficient than 70B2 15% higher than the fan, saving a lot
Scraper chain scraper chain in the work process, under a lot of static and dynamic loads, so are made of alloy steel, heat-treated after welding, it has high strength, toughness
and wear resistance. The quality of scraper chain, on the operation and the entire scraper coalface
The production of great impact, it is necessary to attach importance to the quality of its manufacturing.
Traction chain scraper conveyor layout number, a single-chain (side chain, single-center chain), double-stranded (bilateral chains, two-center chain) and three chains (a
medium-chain side chain) several. Previously, due to the manufacturing technology limitations, single chain tensile strength is not sufficient, the development of bilateral
Chain and three-chain scraper conveyor. Because bilateral chain and three-chain scraper conveyor in motion, the force of the chain is very uneven, and poor performance can be
bent, there was the two-center chain scraper conveyor. With smelting technology and mechanical manufacturing processes (especially welding and Processing)
The development of high-strength alloy steel welded ring chain of technical performance (mainly tensile strength and wear resistance) has been greatly improved, so the single-
chain scraper conveyor has become the development direction of the traction chain. The single-chain scraper conveyor traction chain, no uneven stress problems
And bending performance. It is not ledge chains to space constraints, the same section of the chute, can be installed sizes greater traction chain, and with the work shearer,
the coal on the conveyor less prone to clogging. The scraper conveyor sections require special rolling grooves for steel
Coal chute side to help prevent clogging bonding; chain welding process requires high chain link section size large, easy penetration. The double-stranded chain link section
size small, relatively easy to ensure the welding quality. Single-stranded and double-stranded in the future traction chain scraper conveyor main form.
Conclusion With the coalface to increase the yield on the face using the device performance requirements will be higher, scraper conveyor toward the development of high-power
heavy-duty scraper scraper chain conveyor chute and the quality is good or bad Yield on face is particularly prominent. Thus,
Constantly on the chute and scraper chain structure, material and process improvements and research, improve its performance and extend its service life, reduce repair and
maintenance work, has very important significance.