Multi-helix anti-loosening mechanical fastening mechanism
A technology for mechanical fastening and secondary anti-loosening, applied in threaded fasteners, mechanical equipment, locking fasteners, etc., can solve problems such as low connection strength, gap between inner nut and outer nut, and difficulty in anti-skid grooves. Achieve the effect of high connection strength, reasonable design and simple structure
Active Publication Date: 2018-04-24
AMICUS VERITATIS MACHINERY
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Problems solved by technology
[0004] The above-mentioned scheme improves the problem that the existing bolts and nuts are easily loosened to a certain extent. Although the above-mentioned scheme is provided with several anti-skid grooves on the opposite top surfaces of the inner nut and the outer nut, the inner nut, the outer nut, and the bolts The starting point of the thread is uncertain, and the anti-skid groove is difficult to achieve the purpose of being locked together
Even if they can be accidentally stuck together, the solution still has the problem of low connection strength, a gap between the inner nut and the outer nut when the vibration is large, or the inner nut is easy to push the outer nut back, resulting in loosening between the inner nut and the connecting body, and Eventually, the outer nut and the inner nut will be separated from the bolt.
Method used
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Embodiment Construction
[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0029] Such as figure 1 , 2As shown, the multi-helix pair anti-loosening mechanical fastening mechanism includes a bolt body 1, and the bolt body 1 has two threaded sections respectively connected with the compression nut 2 and the anti-loosening nut 3 threads, and the two threaded sections The direction of thread is opposite. The bolt body 1 is provided with an adjustment ring 4 between the compression nut 2 and the anti-loosening nut 3. The compression nut 2 and the adjustment ring 4 are connected by a one-way rotation structure 5. When the compression When the compression nut 2 has a circumferential rotation movement or movement tendency away from the anti-loosening nut 3, the compression nut 2 can rotate in the circumferential direction relative to the adjustment ring 4 and when the compression nut 2 has a circumferential directi...
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The invention relates to a multi-spiral anti-loosening mechanical fastening mechanism. It solves the technical problems that the existing fastening mechanism is prone to loosening and the like. Including the bolt body, the bolt body has two thread segments connected with the compression nut and the anti-loosening nut respectively and the thread direction is opposite, and the bolt body is sleeved with an adjusting ring between the compression nut and the anti-loosening nut , The compression nut and the adjusting ring are connected through a one-way rotation structure, and a positioning structure that enables the adjusting ring and the anti-loosening nut to be positioned circumferentially and axially is provided between the adjusting ring and the anti-loosening nut. The advantages are: reasonable design, simple structure, high connection strength, good stability, can prevent loosening during connection, and have a self-locking function.
Description
technical field [0001] The invention belongs to the technical field of fasteners, and in particular relates to a multi-spiral anti-loosening mechanical fastening mechanism. Background technique [0002] The screw pair fastening mechanism is a common threaded fastening mechanism. The most common fastening connection is a bolt and a nut that cooperate with each other. The threaded connection of the mechanical equipment connection is realized through the thread of the bolt. Bolts and nuts have good connection performance and simple structure, and are widely used in the field of mechanical equipment. However, bolts and nuts have the defect of easy loosening. With the frequent vibration of the equipment, the gap between the connecting parts increases, causing the bolts and nuts to loosen or even fall off. , In this way, for some mechanical connections, the connecting bodies are prone to separate from each other, and serious accidents are likely to occur. [0003] In order to sol...
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IPC IPC(8): F16B39/12F16B39/28F16B35/04
Inventor 游奕华
Owner AMICUS VERITATIS MACHINERY