Self-locking anti-loose bolt and mounting method thereof
A technology of anti-loosening bolts and self-locking, which is applied in the direction of bolts, screws, nuts, etc., can solve the problems of reduced stressed threads, complicated processing, and two-way discontinuous threads, etc., to achieve the effect of reducing requirements and not easy to loosen
Pending Publication Date: 2019-04-09
HUAQIAO UNIVERSITY
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Problems solved by technology
But the biggest problem with Tang bolts is that the thread of the screw must be discontinuous in both directions, the processing is complicated, and the stressed thread during work is greatly reduced, which is about half of the ordinary thread, and the tensile performance of the screw cannot be fully utilized.
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[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0034] A self-locking anti-loosening bolt, refer to Figures 1 to 9 , including a pin nut 1, a bundle nut 2, and a fastening nut 3; one side of the pin nut 1 extends outward in the axial direction with a circular platform 11, and the diameter of the circular platform 11 is from one end abutting the pin nut 1 to The end away from the pin nut 1 gradually decreases, and the inside of the pin nut 1 and the round table 11 is provided with a first thread 10 along the axial direction; the outer surface of the round table 11 is provided with a second thread 12;
[0035] The inside of the bundle nut 2 is axially provided with a second mating thread 23 that cooperates with the second thread 12 to limit; the bundle nut 2 is provided with an inclined limiting platform 21 on a side perpendicular to the axial direction; The axial height of the inclined limi...
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The invention provides a self-locking anti-loose bolt and a mounting method thereof. The self-locking anti-loose bolt comprises a pin nut, a restraining nut and a fastening nut, wherein one side of the pin nut extends outwards in the axial direction to form a circular truncated cone, the diameter of the circular truncated cone is gradually reduced from the end abutting against the pin nut to the end away from the pin nut, and a first thread is arranged in the pin nut and the circular truncated cone in the axial direction; a second thread is arranged on the outer side surface of the circular truncated cone; a second matching thread matched with the second thread for limiting is arranged in the restraining nut in the axial direction; an inclined limiting table is arranged on the side, perpendicular to the axial direction, of the restraining nut; and the height of the inclined limiting table in the axial direction is gradually increased from one end of the inclined limiting table to the other end in the circumferential direction of the restraining nut. According to the self-locking anti-loose bolt and the mounting method thereof, the bolt can be applied to common threads, and the practicability of the product is improved.
Description
technical field [0001] The invention relates to the field of machinery and installation, in particular to a self-locking anti-loosening bolt and an installation method thereof. Background technique [0002] Since the thread of the nut must be slightly larger than the thread of the screw, it is easy to screw in. Therefore, when the nut is tightened, the relative extrusion force is provided by the thread to the nut, but the inclination angle between the thread and the horizontal plane is outward. In the case of severe shaking or vibration, due to the elastic deformation of the steel and the gap between the nut thread and the screw thread The gap between the nut and the screw produces shaking and friction. At the same time, under the joint action of the connecting piece on the nut, a counterclockwise rotation torque is formed in the nut, and the nut becomes loose, resulting in the loss of the pre-tightening force of the nut and even the nut. Loosen and shake off. Various insp...
Claims
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Login to View More IPC IPC(8): F16B39/28F16B37/00
CPCF16B37/00F16B39/28
Inventor 王卫华蔡敏伟董毓利祁神军王海峰王冬晔陈香蓉洪铁东郭秀泉徐玉野张大山
Owner HUAQIAO UNIVERSITY