Retaining and anti-loosening gasket, nut and bolt special for high-speed railway track

A technology of railway track and anti-loosening gasket, which is applied in the direction of tracks, roads, fixed rails, etc. It can solve the problems of the performance and strength of the elastic strip, the difficulty in preventing back and forth and anti-loosening, and the small contact area between the elastic strip and the gasket. , to achieve the effect of ensuring integrity and stability

Pending Publication Date: 2019-05-21
李光泽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the existing anti-retraction and anti-loosening fasteners are used to fix the rail, the one-way teeth on the lower end surface of the gasket will be embedded in the surface of the elastic strip (forced member), which will affect the performance and strength of the elastic strip; and the elastic strip is strip-shaped, and the elastic The contact area between the bar and the gasket is small, and it is difficult for the one-way teeth to be completely embedded in the surface of the elastic bar, so it is difficult to achieve the expected effect of anti-retraction and anti-loosening

Method used

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  • Retaining and anti-loosening gasket, nut and bolt special for high-speed railway track
  • Retaining and anti-loosening gasket, nut and bolt special for high-speed railway track
  • Retaining and anti-loosening gasket, nut and bolt special for high-speed railway track

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see Figure 1 to Figure 3 ,and Figure 8 , Figure 9, This embodiment provides an anti-retreat and anti-loosening washer. The anti-retraction and anti-loosening washer includes a washer body 11 . In order to apply the torque wrench-driven tensioner to the anti-retraction and anti-loosening gasket, the outer contour of the gasket body 11 can be designed as a regular hexagon or other regular polygons. The lower end surface of the gasket body 11 is provided with a first fixed protruding structure 12, and the first fixed protruding structure 12 is used to snap into the gap between the two limbs of the spring bar and prevent the spacer body 11 from colliding with the elastic bar. Rotation; the upper surface of the washer body 11 is provided with a second fixing protruding structure 13, and the second fixing protruding structure 13 is used to prevent relative rotation between the washer body 11 and the nut or bolt after being fastened.

[0038] The anti-retraction and ant...

Embodiment 2

[0045] see Figure 4 and Figure 5 , this embodiment provides a anti-retraction locknut. The anti-retreat and anti-loosening nut includes a nut body 21, and the lower end surface of the nut body 21 is provided with a third fixed protrusion structure 22, and the third fixed protrusion structure 22 is used to prevent the nut body 21 and the washer from being tightened. Relative rotation occurs after solidification; the lower end surface of the nut body 21 is also provided with a plug-in structure 23, and the plug-in structure 23 is used for riveting into the socket structure 14 provided on the through hole of the washer.

[0046] The anti-retreat locknut is used in conjunction with the anti-retreat and anti-loosening washer described in Embodiment 1 as a fastener, and is used to connect and fix the rail with the lower structure (sleeper rail, backing plate) in conjunction with the elastic strip. After the fastener is tightened, due to the interaction between the third fixed pr...

Embodiment 3

[0051] see Figure 6 and Figure 7 , this embodiment provides a back and forth anti-loosening bolt. The anti-retraction and anti-loosening bolts include a bolt body 31, the lower end surface of the bolt body 31 is provided with a fourth fixed protrusion structure 32, and the fourth fixed protrusion structure 32 is used to prevent the bolt body 31 and the gasket from being tightened. Relative rotation occurs after solidification.

[0052] The anti-retreat and anti-loosening bolts are used in conjunction with the anti-retreat and anti-loosening washers described in Embodiment 1 as fasteners, and are used to connect and fix the rails with the lower structure (sleeper rails, backing plates) in conjunction with elastic strips. After the fastener is tightened, due to the interaction between the fourth fixed protrusion structure 32 and the second fixed protrusion structure 13, the anti-retreat and anti-loosening bolt and the anti-retreat and anti-loosening gasket cannot rotate rela...

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Abstract

The invention provides a retaining and anti-loosening gasket, nut and bolt special for a high-speed railway track. The retaining and anti-loosening gasket comprises a gasket body, a first fixed convexstructure is arranged on the lower end face of the gasket body, and a second fixed convex structure is arranged on the upper end face of the gasket body, a third fixed convex structure is arranged onthe upper end face of the retaining and anti-loosening gasket, an inserted-connected structure is arranged on the lower end face of the retaining and anti-loosening nut. A fourth fixed convex structure is arranged on the lower end face of the retaining and anti-loosening bolt,The retaining and anti-loosening gasket, nut and bolt cooperate with one another to serve as a fastener, or the retainingand anti-loosening gasket cooperates with an ordinary nut and bolt separately to serve as the fastener, and the fastener and an elastic bar are cooperatively applied to the high-speed railway track, the fastener can achieve the obvious retaining and anti-loosening effect, and the integrity and stability of the track structure are guaranteed. The first fixed convex structure is clamped into a clearance between two arms of the elastic bar to serve as the fulcrum of the reaction arm, the surface structure of the elastic bar cannot be destroyed, and the performance and strength of the elastic barare not affected.

Description

technical field [0001] The invention relates to a fastener for a high-speed railway track, in particular to a special anti-retraction and anti-loosening washer, nut and bolt for a high-speed railway track. Background technique [0002] In order to connect and fix the rail and the substructure (sleeper rail, backing plate) during the construction of the high-speed railway track, so that the track forms a stable and reliable overall structure, elastic strips and fasteners are often used for fixing. Therefore, it is very important to prevent the fasteners from retreating and preventing loosening. Once the fasteners become loose, it will affect the integrity and stability of the track structure. Ordinary fasteners do not have an obvious anti-retraction and anti-loosening effect. The track fixed by the cooperation of ordinary fasteners and elastic strips needs manual retightening on a regular basis. In the existing anti-retraction and anti-loosening fasteners, the one-way teeth ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B9/10E01B9/12
Inventor 李光泽李楠赵阳
Owner 李光泽
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