A load-removable test system for testing the torsion-tension characteristics of bolts

A test system and bolt technology, which is applied in the direction of strength characteristics, using stable torsion to test material strength, using stable tension/pressure to test material strength, etc., can solve the problems of broken and falling off, not easy to carry, and complex bolt torsion test platform and other problems, to achieve the effect of increasing the force bearing area and improving the detection sensitivity

Active Publication Date: 2021-10-29
QINGHAI UNIVERSITY
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  • Abstract
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Problems solved by technology

However, the existing bolt torsion and tension test platform is too complicated, the cost is high, the test platform is large and not easy to carry
In addition, the measurement conditions cannot be met when measuring the torsion-tension characteristics of some special fasteners. For example, when measuring high-lock nuts, the clamping part of the nut head will automatically break and fall off after the nut is tightened. At this time, the huge bolt pre-tightening force makes the nut The loosening is very difficult, and the test process is seriously affected

Method used

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  • A load-removable test system for testing the torsion-tension characteristics of bolts
  • A load-removable test system for testing the torsion-tension characteristics of bolts
  • A load-removable test system for testing the torsion-tension characteristics of bolts

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Embodiment Construction

[0039] The structures involved in the present invention or the technical terms used are further described below. These descriptions are only used as examples to illustrate how the present invention is implemented, and do not constitute any limitation to the present invention.

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left" and "right" are based on those shown in the accompanying drawings. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as ...

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Abstract

The invention discloses a load-removable test system for testing the torsion-pull characteristics of bolts, which includes the establishment of a test platform and the torsion-pull test of bolts. The invention facilitates the loosening of nuts by unloading the pretightening force.

Description

technical field [0001] The invention relates to the field of bolt torsion and pull tests, more specifically, it relates to a load-removable test system for testing the torsion and pull characteristics of bolts. Background technique [0002] The following background art is provided to help the reader understand the present invention and is not to be admitted as prior art. [0003] As the basic test platform in the fastener testing industry, the bolt torsion tension test platform is used to determine the bolt torque-preload conversion ability and other properties. However, the existing bolt torsion and tension test platform is too complicated, the cost is high, and the test platform is large and not easy to carry. In addition, the measurement conditions cannot be met when measuring the torsion-tension characteristics of some special fasteners. For example, when measuring high-lock nuts, the clamping part of the nut head will automatically break and fall off after the nut is t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/02G01N3/04G01N3/08G01N3/22
CPCG01N3/02G01N3/04G01N3/08G01N3/22
Inventor 赵兵张守阳
Owner QINGHAI UNIVERSITY
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