Material conveying device and scraper

Abstract

The invention relates to a material conveying device and a scraper. The invention provides a scraper which comprises a scraper body and a support body; the scraper body is provided with a bottom surface and a top surface opposite to the bottom surface; the support body is formed on the bottom surface of the scraper body and is provided with a mounting surface, and the mounting surface forms a partof the bottom surface; and a rolling body is arranged on the mounting surface, wherein when the scraper is in a mounting position, the rolling body can support the scraper body, and the support bodyis a non-metal elastomer. The invention also provides material conveying apparatus such as a scraper conveyor to which the above-described scraper is applied. By changing the contact and friction modes of the scraper and the conveying groove, the working state of the scraper and the overall load of the conveyor are improved, the idle load is reduced, and the service life of the scraper and even the overall service life of the scraper conveyor are prolonged.

Description

technical field [0001] The invention belongs to the field of mechanical equipment manufacturing, in particular to conveying equipment, in particular to a material conveying device and a scraper. Background technique [0002] At present, the scraper conveyor used in various industrial productions is the main transportation equipment for continuous transportation of granular materials. Especially in the field of mining such as coal mining, it can be well matched with mining equipment, as a mobile support rail for mining equipment, and can be adjusted and advanced under the drive of the hydraulic support. In particular, when scraper conveyors are used in current coal mining operations, the role of scraper conveyors is not only as a carrier for coal and materials, but also as a running track for coal shearers, so it has become an indispensable part of modern coal mining processes main equipment. The scraper conveyor can keep running continuously, and the production can go on n...

AI Technical Summary

Problems solved by technology

Under certain working conditions, the maximum stress in some areas of the scraper exceeds the allowable stress of the scraper material, which in turn leads to strength failure

[0008] At present, most of the scraper conveyors used in coal mines are forged products made of alloy steel, which are heavy and have high frictional resistance; the scraper and the bottom plate of the groove side are subject to dynamic load and static pressure friction and wear, especially the extrusion wear of the scraper and the side of the groove Seriously affect the service life of the scraper conveyor

Moreover, due to the weight of the scraper made of alloy steel, the no-load of the scraper conveyor will also be too large, and more than 35% of the driving output power is used to do work to drive the scraper to move itself.

In order to meet the demand of the conveying volume, the output power of the driving device can only be increased. In this way, on the one hand, energy consumption will be increased and the transportation cost of the equipment will be increased; on the other hand, in order to increase the output power, the volume and Weight, while increasing the cost of equipment manufacturing, the overweight driving device will also cause the overall weight of the scraper conveyor to increase, increasing the working pressure of the hydraulic support; moreover, the excessive volume of the driving device also poses a greater challenge to the operating space of the workplace. High requirements reduce the flexibility of the scraper conveyor and increase the working limitations

[0009] In addition, the scraper is made of hard alloy steel. After materials such as coal mined by coal mining equipment collide with the scraper during the blanking process, there is a certain possibility that larger lumps of coal will be crushed. , affect the quality of coal products, and reduce the economic indicators of mining from another aspect

Images