Double tooth variation type double anti-loose nut

A double anti-loosening and nut technology, applied in the direction of nuts, screws, bolts, etc., can solve the problems of non-loosening, difficult to use, and impossible to find when assembling

Inactive Publication Date: 2008-08-13
张振祥
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Problems solved by technology

Therefore, it must be made into a flange shape to show the direction, which increases the complexity of the process.
It is suitable for: flange nuts, cap nuts, wing nuts, combined cap nuts, ring nuts, etc. These nuts are used in a small amount, and are not suitable for ordinary hexagonal nuts that are used in a large amount, because they The direction cannot be distinguished; second, because it is originally an ordinary nut and emphasizes the middle diameter, its anti-loosening slope is relatively short. In the connection pair, the anti-loosening slope cannot fully accommodate the 6g bolt: that is, the internal thread is close to the upper limit area, and the external thread When approaching the lower limit area, the crest of the external thread cannot touch the anti-loosening slope. At this time, the variable-profile nut i

Method used

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  • Double tooth variation type double anti-loose nut

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Embodiment Construction

[0005] Ordinary national standard nuts have good connectivity, but are not anti-loosening, and are not suitable for locomotives, vehicles, transportation machinery, power machinery, ships and other moving machinery vehicles. Change the equilateral triangular thread of the national standard nut into a combination of two threads. The basic tooth angle of the nut, that is, the angle between the two waists is 60 degrees, and two anti-loosening slopes are connected to it, and the two anti-loosening slopes form a 30-degree clip with the thread axis. Angle, the angle between the two anti-loosening slopes is 120 degrees, symmetrical, and the crest is the intersection point (line) of the two slopes. For large nuts, the sharp point can be ground into a plane. Make the taps in this way, and use the special taps to process the nuts, and you can get the double-variable tooth type anti-loosening nuts; in August 2004, the anti-loosening performance test was conducted in the Academy of Mechani...

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Abstract

A bivariate tooth type double anti-loose nut belongs to technology field of anti-loose nut. The bivariate tooth type double anti-loose nut changes single inclined plane to double inclined plane, and includes 6g-9g bolt, basic tooth type angle 60 degree, the upper two anti-loose inclined plane is 30degree included angle with axes, two bevel included angle are 120, tooth top is crossing point of two inclined plane, thereby bivariate tooth type anti-loose nut with plain nut shape can be produced without distinguishing orientation in using. Extending chamfer angle at nut end-face screw thread of flange surface, leaving little surface at flange surface, forming cantalever applied force on flange surface, using steels elastic to enhance anti-loose performance.

Description

technical field [0001] The invention relates to a tooth-variable anti-loosening nut, which is a device for preventing the thread pair from loosening by changing the thread angle of the nut. It belongs to the technical field of lock nuts. Background technique [0002] Lock nuts are new types of nuts that have only appeared in recent years. There are many forms: national standard GB / T889.1-2000I non-metallic insert hexagonal lock nuts; there are also embedded steel sheet nuts on the market; . These nuts are complicated to manufacture and inconvenient to install and use. Special tools must be used for the installation and removal of the embedded wire nuts. The variable-tooth locknut was declassified by the U.S. military in 1996 and is an expired patented technology. At present, there are existing standards in China: iron standard (TB / T3019-2001). The current variable-tooth locknut has an advantage: the advantage is that it has good anti-loosening performance; several disadv...

Claims

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Application Information

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IPC IPC(8): F16B37/00F16B39/30
Inventor 张振祥
Owner 张振祥
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