Three-dimensional design method for lap joint of front big foot bent part of hydraulic support base

Abstract

The invention relates to a three-dimensional design method for lap joint of a front big foot bent part of a hydraulic support base and belongs to the technical field of design of fully mechanized coalmining supporting equipment; problems that when a hydraulic support base is designed through a traditional design method at present, the size cannot be accurate, and the quality cannot be guaranteedduring on-site welding are solved. The base front big foot structure comprises an outer main rib, an inner main rib, a bottom plate, a cover plate, an inner reinforcing rib and round steel, the innermain rib is a single-bending plate, and the bottom plate is a double-bending plate; the method comprises the following steps of creating a geometric entity of a workpiece by utilizing three-dimensional design software, constructing a simulation model of a front big foot of a base, determining the correctness of a design size through interference and gap verification of a lap joint part of a bent part of the base, and outputting a flattening geometric model of the bent part after simulation is finished. The method is advantaged in that the design size given by the three-dimensional design method has logicality and is reasonable and accurate, the stress of the designed support better conforms to the reality, the tedious process is reduced, materials are saved, and meanwhile reference is provided for design of other supports of the same type.

Description

technical field [0001] The invention belongs to the technical field of coal mining support equipment design, and in particular relates to a three-dimensional design method for the lap joint of the big foot bending parts in front of a hydraulic support base. Background technique [0002] In the design of the existing hydraulic support base, the single-bending design of the inner main rib and the double-bending design of the bottom plate are particularly common. It is difficult to find a reasonable design method. [0003] In the traditional design method, the designer usually roughly gives the design size based on processing experience, or reserves a surplus size, and compares, manually trims, and fills with solder stacks after bending the two boards on site during a spot assembly in the workshop. Mainly, the cutting surface of the product after trimming is uneven and extremely unsightly. [0004] The design of this commonly used bracket not only has drawing problems such as...

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Problems solved by technology

[0005] The present invention overcomes the deficiencies in the prior art, and proposes a three-dimensional design method for the overlapping of the front big foot bending parts of the hydraulic support base; it solves the problem that the traditional design method cannot be used to design the hydraulic support base at present, and the quality cannot be guaranteed during on-site welding. The problem

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