First conveyer for roadheader

Abstract

The invention provides a first conveyer for a roadheader. The first conveyer for the roadheader comprises a front chute, a middle chute, a rotary trough, a swing trough, a pull-up oil cylinder and a swing cylinder, wherein the middle chute is connected with the front chute, the rotary trough is connected with the middle chute through a pivot pin which is arranged horizontally, the swing trough isconnected with the rotary trough through an oscillation pin which is vertically arranged, the rotary trough is controlled by the pull-up oil cylinder to rotate upwards and downwards, and the swing trough is controlled by the swing oil cylinder to swing leftwards and rightwards. A driving device connected with a scraper blade chain is arranged on the swing trough and is used to drive the scraper blade chain to rotate. An automatic tensioning device is arranged in the swing trough. Because of the automatic tensioning device, when the swing trough swings leftwards and rightwards, the scraper blade chain which tends to get loose is enabled to be in the tensioned state. According to the first conveyer for the roadheader, the rotary trough can rotate upwards and downwards, the swing trough can swing leftwards and rightwards, and furthermore, in the process that the swing trough swings leftwards and rightwards, it can be avoided that the scraper blade chain gets loose.

Description

technical field [0001] The invention relates to the technical field of excavation equipment, in particular to a first conveyor for an excavation machine. Background technique [0002] When the roadheader is working normally in the coal mine, the coal cut by the roadheader in the direction of excavation is sent to the first conveyor through the star wheel claws, and then transported by the first conveyor to the second belt conveyor that overlaps with the first conveyor behind the roadheader , and then the second belt conveyor is lifted up and connected with the third belt conveyor, dump truck, shuttle car and other transportation equipment behind the second belt conveyor to continue to transport the materials backward. Because the transport belt of the third belt conveyor in some roadways is hung on the left or right wall of the cave, and the first conveyor that has is directly connected with the shuttle car of different heights to carry out the subsequent transmission of mat...

AI Technical Summary

Problems solved by technology

However, the first conveyor of the existing roadheader is often rigidly connected, and the position of the discharge port is fixed, so the position of the discharge port cannot be changed. Because the discharge port of the conveyor cannot move left and right, the material cannot be directly unloaded on the belt of the third belt conveyor

In addition, some materials in the roadway need to be transported by shuttle cars, and the shuttle cars are of different heights. When encountering a shuttle car with a higher height, the first conveyor of the existing roadheader is not high enough to be directly unloaded and transported. A belt conveyor is additionally connected behind the first conveyor to transfer the material to the third belt conveyor and shuttle car for subsequent transportation, which will affect the transportation speed of the material, thereby reducing the coal mining efficiency

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