Hexagonal hole cross groove indented bolt

Abstract

The invention proposes a hexagonal hole cross groove indented bolt. The hexagonal hole cross groove indented bolt comprises a stud, a hexagonal prism screw cap, an internal hexagonal hole, a cross groove, an antiskid tooth pattern and a thread; the stud is cylindrical; the upper end part of the stud is a smooth cylinder, and a thread with a length being 3 / 5 total length is arranged at the lower end part; the hexagonal prism screw cap is arranged at the top end of the screw cap; the cross groove is formed in the upper end surface of the hexagonal prism screw cap; the internal hexagonal hole with a regularly hexagonal section is formed in the side surface of the hexagonal prism screw cap; and the antiskid tooth pattern is arranged on the lower end surface of the hexagonal prim screw cap. The hexagonal hole cross groove indented bolt effectively solves the bolt thread release problem and the looseness problem of mechanical equipment, reduces damage of mechanical workpieces by thread release in disassembly, prevents the bolt looseness in working of equipment, and lays foundation for normal work of efficient installation and disassembly of the bolt and the equipment.

Description

【Technical field】 [0001] The invention relates to the technical field of connection and fastening of open-air machinery, mining machinery and chemical equipment parts, in particular to the technical field of a hexagonal hole cross-groove toothed bolt. 【Background technique】 [0002] Trucks, coal unloaders and other medium-sized mechanical equipment are exposed to wind, rain and sun for a long time, which can easily cause rust and corrosion on the exposed bolts on the equipment, main beams, flange connection bolts, etc., and the material properties will decline. When the equipment is disassembled for major maintenance, there will be a phenomenon of slipping wires, which will cause the screws to be unable to be disassembled, which will bring great inconvenience to equipment maintenance and parts replacement. The vibration of the equipment is more obvious during work, causing the bolts to loosen and fall off, affecting the quality of the equipment. Normal work reduces the relia...

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Problems solved by technology

[0002] Trucks, coal unloaders and other medium-sized machinery and equipment exposed to wind, rain and sun for a long time will easily cause rust and corrosion on the exposed bolts on the equipment, main beams, flange connection bolts, etc., and the material performance will decline.

When the equipment is disassembled for major maintenance, there will be a phenomenon of slipping wires, which will cause the screws to be unable to be disassembled, which will bring great inconvenience to equipment maintenance and parts replacement. The vibration of the equipment is more obvious during work, causing the bolts to loosen and fall off, affecting the quality of the equipment. Normal work reduces the reliability of the equipment, and now a hexagonal hole cross-groove toothed bolt is proposed

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