Oblique shovel plate welding and positioning device of road header

Abstract

Disclosed is an oblique shovel plate welding and positioning device of a road header. By arranging a main shovel plate welding fixing frame and oblique shovel plate welding fixing frames, the positioning precision of a main shovel plate driven wheel lug plate, a main shovel plate lug plate and a disc is guaranteed during splice welding, the fixing and positioning precision of main parts is guaranteed, the panel angles of the main shovel plate and lateral shovel plates of a shovel plate portion are guaranteed, and the main shovel plate and the lateral shovel plates can be spliced at the same time, so that it is ensured that the butt joint surfaces of the main shovel plate and the lateral shovel plates are aligned, appearance is beautiful, and the interchangeability of the main shovel plate and the lateral shovel plates can be also ensured. The position of a main shovel plate connecting plate bottom plate can be accurately determined, so that a scraper plate does not interfere with a connecting plate, production efficiency, and welding deformation is reduced. Besides, machining of the shovel plates in the later period is facilitated, and the problems of insufficient working allowance caused by welding deformation and splicing errors are avoided.

Description

technical field [0001] The invention relates to a positioning device, in particular to a welding positioning device for an inclined shovel plate of a roadheader. Background technique [0002] The roadheader is a roadway comprehensive tunneling equipment that integrates cutting, loading, transporting and walking, and can realize continuous cutting, loading and transporting operations. The roadheader is composed of ten parts: cutting part, shovel part, main part, traveling part, first conveyor, rear support, water system, hydraulic system, lubrication system and electrical system. The shovel part is composed of main shovel, side shovel, shovel driving device and driven wheel device, etc. The star wheel is driven by two hydraulic motors, and the cut materials are loaded into the first conveyor. [0003] The main function of the shovel part of the roadheader is to collect materials. In order to improve the material collection capacity, undercover effect and beautiful appearance...

AI Technical Summary

Problems solved by technology

At present, assembly and welding methods are mostly used for processing. Due to the complex structure and shape of the shovel itself, and the top surface is a slope, the on-site construction measurement has large errors in the positioning dimensions of each part, which may easily lead to the following problems during the processing: 1. The top surface of the shovel Inaccurate angle and inaccurate positioning of the lug plate of the driven wheel, resulting in interference between the scraper and the connecting plate; 2. Inaccurate positioning of the lug plate of the main scraper plate and the disc of the main scraper plate, resulting in insufficient allowance for subsequent machining boring or hole boring 3. The butt joint surfaces of the main scraping plate and the side scraping plates are not aligned after welding, which affects the appearance, and the interchangeability between the main scraping plate and the side scraping plates cannot be guaranteed; 4. The bottom plate of the main scraping plate, due to the The shape of the plate is irregular, which makes the measuring tool unable to accurately measure the size for positioning; 5. The large positioning error of each part causes large welding deformation, and also brings processing difficulty and insufficient processing allowance to the subsequent machining; the above problems Both seriously affect the production and processing efficiency and qualification rate of the inclined blade

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