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Method for unscrewing decollated bolts

A technology for bolts and fractures, applied in the field of bolt removal from broken ends, can solve the problems of rust, cumbersome operation, and difficulty in removing the bolt body.

Inactive Publication Date: 2012-10-10
CHINA TOBACCO HENAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In mechanical equipment, bolted connection is a commonly used connection method. In some occasions, such as outdoors, due to the harsh environment, the bolts are seriously carbonized or rusted, and some bolt heads and bolt bodies are often caused during the disassembly process. The lower part is disconnected, and the bolt body is difficult to take out. Using conventional methods (welding a new bolt head clamp body, drilling with square steel wedge, etc.) is not only cumbersome to operate, but also easily causes damage to the connecting parts, which is not worth the candle.

Method used

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  • Method for unscrewing decollated bolts

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Embodiment Construction

[0011] Such as figure 1 As shown, a method for taking out a dead end bolt of the present invention comprises the following steps in sequence:

[0012] (1) Flatten the broken part of the broken bolt 2 on the connector 1;

[0013] (2) Drill a hole 3 along the center line of the dead bolt 2 at the leveling place of the dead bolt 2, the hole diameter is smaller than the outer diameter of the dead bolt 2, and the drilling depth is 10-20mm;

[0014] (3) Select a suitable manual tapping tool according to the diameter of the drilled hole, and use a manual tapper to tap the drilled hole. The thread rotation in hole 3 is opposite to that of the dead bolt 2;

[0015] (4) Use a wrench to screw a small bolt 4 into the threaded hole 3 after tapping. Since the thread rotation direction in the hole 3 is opposite to that of the broken bolt 2, during the screwing process of the small bolt 4 , just drive the dead end bolt 2 to unscrew slowly, so that the dead end bolt 2 is disassembled from th...

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Abstract

The invention discloses a method for unscrewing decollated bolts. The method includes following steps: (1) flattening the cracking position of a decollated bolt on a connector; (2) drilling a hole with the diameter smaller than the outer diameter of the decollated bolt and the depth ranging from 10-20mm along a central line of the decollated bolt at the flattened position; (3) selecting a suitable hand tapping tool according to the diameter of the drilled hole, and tapping the drilled hole with the hand tapping tool to enable the thread direction in the drilled hole to be opposite to the thread direction of the decollated bolt; and (4) screwing a small bolt into the tapped threaded hole with a wrench. Since the thread direction in the drilled hole is opposite to the thread direction of the decollated bolt, the decollated bolt can be slowly unscrewed during the screwing process of the small bolt. The method for unscrewing decollated bolts is easy to handle, convenient and fast, and can protect the connector from deformation and damage caused by damages by external force.

Description

technical field [0001] The invention belongs to the technical field of cigarette production, and in particular relates to a method for taking out broken bolts. Background technique [0002] In mechanical equipment, bolted connection is a commonly used connection method. In some occasions, such as outdoors, due to the harsh environment, the bolts are seriously carbonized or rusted, and some bolt heads and bolt bodies are often caused during the disassembly process. The lower part is disconnected, and the bolt body is difficult to take out. Using conventional methods (welding new bolt head clamping body, drilling with square steel wedge, etc.) is not only cumbersome to operate, but also easily causes damage to the connecting parts, which is not worth the candle. Contents of the invention [0003] In order to solve the deficiencies in the prior art, the present invention provides an easy-to-operate, safe and reliable method for taking out broken bolts. [0004] In order to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/18
Inventor 张黎林宁守庆郭宪杰张要朋王博樊书敏卢方
Owner CHINA TOBACCO HENAN IND
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