Technology for manufacturing wheeled engineering machinery vehicle spokerib board and special-purpose vertical coiling machine

Abstract

The invention discloses a process for manufacturing a spoke plate of a wheel type construction machinery vehicle and a special vertical winding machine therefor, and belongs to the technical field of construction machinery. The process comprises the following working procedures: heating, wherein strips are heated to be between 650 and 750 DEG C to form heating strips; winding, wherein the heating strips are fed into the vertical winding machine and the strips are wound into vertical spiral blanks; cutting, wherein the spiral blanks are cut into separate blanks according to the specification of a prefabricated spoke plate; pressing spots, wherein cuts of the separate blanks are aligned for spot welding; welding, wherein the separate blanks after the spot welding are welded to form a spoke plate blank; finishing, wherein the dimensional precision of the welded blank is finished to form the spoke plate blank; and machining, wherein the spoke plate blank is machined to manufacture a spoke plate finished product. The invention is suitable for manufacturing the spoke plate of the wheel type construction machinery vehicle.

Description

technical field [0001] The invention relates to a wheel web manufacturing process and rolling equipment thereof, in particular to a wheel web manufacturing process and a special vertical coiler for wheel engineering machinery, belonging to the technical field of engineering machinery. Background technique [0002] In the wheel structure of existing engineering machinery, the outer ring of the wheel is called the rim, and the part of the wheel that is combined with the axle is called the hub, and the hub and the rim are connected by a spoke plate; the spoke plate mainly bears pressure and bending force during the operation of the wheel , requiring higher toughness. [0003] At present, there are two main methods for manufacturing wheel spoke plates of wheeled construction machinery. One method is the gas cutting process, which is to cut the steel plate into the required ring-shaped parts. This method has the following disadvantages: on the one hand, The material utilization ...

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Problems solved by technology

[0003] At present, there are two main methods for manufacturing wheel spoke plates of wheeled construction machinery. One method is the gas cutting process, which is to cut the steel plate into the required ring-shaped parts. This method has the following disadvantages: on the one hand, The material utilization rate is low; this is because the web plate is a circular part. If it is cut directly from the steel plate, the material around the inner hole and the outer circumference will become waste, and the material utilization rate is only about 46%. Part of the metal in the middle is blown off due to thermal oxidation, which further causes waste of materials. Second, the manufacturing cost is high. Due to the high hardness around the gas cutting part, it is not easy to perform turning processing, resulting in low processing efficiency and fast tool wear. Thereby increasing the processing cost; Another method is the hot pressing flanging forming process, the process flow is: blanking → planing groove → flat rolling into a cylinder → welding → grinding → heating → flaring → flattening, this process Compared with the gas cutting process, the material utilization rate can reach 80%, and the production efficiency is correspondingly improved, but this process still has the following disadvantages: First, when the mouth is flared, the weld is easily cracked due to the tension on the upper part, thus Cause high scrap rate; second, after flaring, due to the thinning of the upper part, the thickness of the outer circle of the annular workpiece and the inner hole generally differ by more than 4mm. In order to ensure the same thickness of the inner and outer parts of the workpiece, the thickness of the material needs to be increased; third, The flatness of the workpiece is poor, and the maximum concave reaches more than 3mm; the fourth is that the blank machining allowance is large and the processing cost is high

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