A Diagonal Bracing Structure of an Inserted Underframe of a Tower Crane

Abstract

The invention discloses an inserted chassis diagonal-brace structure of a tower crane and belongs to the technical field of the tower crane. The diagonal-brace structure of the tower crane comprises a base section, a chassis section and a diagonal brace, wherein the bottom end of the base section is vertically and fixedly connected to a crossed beam; the bottom end of the chassis section is fixedly connected to the top surface of the base section; the diagonal brace is arranged to be inclined to the crossed beam, the bottom end of the diagonal brace is fixedly connected with the crossed beam, while the top end of the diagonal brace is fixedly connected with the chassis section, a double-lug plate with a U-shaped structure and fixedly connected with the diagonal brace is arranged at the top end of the diagonal brace, and the inner width dimension of the U-shaped structure of the double-lug plate is matched with the width dimension of a main chord; the top end of the diagonal brace is sleeved on the main chord of the chassis section through the double-lug plate, and the top end of the double-lug plate is fixedly connected with the main chord of the chassis section through a connecting piece. The chassis section is reduced in overall structure dimension and strong in transportation convenience, and simultaneously, the stress condition at the connection part is improved and the weld joint quality requirement is effectively reduced. The diagonal-brace structure of the tower crane is simple and is easy to manufacture and low in manufacturing cost.

Description

technical field [0001] The invention relates to a diagonal brace structure of an underframe, in particular to an inset diagonal brace structure of an underframe of a tower crane, belonging to the technical field of tower cranes. Background technique [0002] At this stage, the homogenization competition in the domestic tower crane industry is serious, especially in the field of small and medium-sized tower cranes. The quality and price of the products of various manufacturers are evenly matched, and the appearance structure, disassembly and transportation methods are almost the same. Therefore, for domestic tower crane companies, if they want to win the market and win the favor of customers, they need to improve the transportation convenience and economical practicability of their products, so as to meet the cost-effective needs of customers to the greatest extent. Therefore, continuous optimization of product structure, reduction of manufacturing costs, and improvement of p...

AI Technical Summary

Problems solved by technology

Since other standard sections have a regular cubic space structure, only the four corners of the chassis section hang out with single ear plates, which is inconsistent with the standard section space size, so it is extremely inconvenient to load and transport

In addition, since the weld seam between the single ear plate and the chassis section is the butt joint between the thickness surface of the single ear plate and the main chord of the chassis section, the quality requirements of the weld seam are relatively high, and it is not easy to guarantee

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