Anti-loosening fastening structure of railway track

Abstract

The utility model discloses an anti-loosening fastening structure of a railway track, the railway track comprises a sleeper and an I-shaped track, gauge baffles are arranged on two sides of the track in a leaning manner, spikes are arranged on the sleeper below the gauge baffles, elastic strips are sleeved on the spikes, one arch foot of each arch-shaped elastic strip is pressed on the top surface of a bottom transverse block of the I-shaped track, and the other arch foot of each arch-shaped elastic strip is pressed on the top surface of the corresponding gauge baffle. The arch top of the elastic strip is connected with a special-shaped anti-skid gasket in a pressing mode, the special-shaped anti-skid gasket is provided with an anti-skid flange nut connected with the screw spike in a screwed mode, and the bottom face of the anti-skid flange nut is provided with a circle of anti-skid teeth. The special-shaped anti-skid gasket comprises a body, a first positioning piece and a second positioning piece which are bent and extend downwards are arranged on the two sides of the body respectively, and the first positioning piece and the second positioning piece are connected with the elastic steel strips at the corresponding positions of the elastic strips in a clamped mode respectively. An opening part is formed in a ring part, between the two positioning sheets, of the body; an arc-shaped connecting arm A and an arc-shaped connecting arm B are respectively arranged on two opening edges of the opening part; a clamping tooth A and a clamping tooth B are arranged on the top faces of the tail ends of the two connecting arms respectively. And the anti-skid reliability is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of standard parts and relates to an anti-loosening fastening structure for railway tracks. Background Art

[0002] The reliability of the anti-loosening fastening structure of railway tracks is related to the safety of railway operations.

[0003] There are many forms of anti-loosening fastening structures for railway tracks in the prior art, but the basic structure is as follows: Figure 1 , Figure 2 As shown: an anti-loosening fastening structure for railway tracks, the railway track comprises sleepers 5 arranged at intervals, an I-rail 4 erected on the sleepers 5, a rubber pad 7 is provided at the crimping position between the I-rail 4 and the sleeper 5, corresponding gauge baffles 6 are respectively arranged on both sides of the bottom cross block of the I-rail 4, corresponding spiral spikes 3 extending out of the gauge baffle 6 are arranged on the sleepers 5 at the corresponding position below the gauge baffle 6, and elastic bars 8 are sleeved on the spiral spikes 3, and the overall outer contour of the elastic bars 8 formed by multiple back-and-forth bending of elastic steel bars is in the shape of an arch frame, one arch foot of the elastic bar 8 is crimped to the top surface of the cross block on the corresponding side of the bottom cross block of the I-rail 4, and the other arch foot of the elastic bar 8 is crimped to the top surface of the gauge baffle 6 on the corresponding side, and a washer is crimped to the arch top of the elastic bar 8, and a flange nut screwed to the spiral spike 3 is arranged on the washer, and the flange nut is a flat-bottomed flange nut 2; the washer is a flat washer 1.

[0004] The anti-loosening fastening structure of the railway track using such technology can certainly be used, but there are the following shortcomings:

[0005] Flange nuts have greater friction due to their large crimping surface, and are more anti-slip than ordinary hexagonal flat nuts, but they still rely on friction to prevent slipping. For ordinary railway tracks, they can be used through regular inspection and maintenance by track patrol workers. However, for railway tracks for high-speed trains with higher requirements, the reliability of anti-loosening is not high enough, making it difficult to apply and the effect of use is not ideal. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides an anti-loosening fastening structure for a railway track with higher anti-loosening reliability.

[0007] The utility model adopts the following technical scheme to achieve the above technical purpose: a railway track anti-loosening fastening structure, the railway track comprises sleepers arranged at intervals, an I-rail mounted on the sleepers, a rubber pad is arranged at the crimping position between the I-rail and the sleeper, corresponding gauge baffles are respectively arranged on both sides of the bottom cross block of the I-rail, corresponding spiral spikes extending out of the gauge baffle are arranged on the sleepers at the corresponding position below the gauge baffle, an elastic strip is sleeved on the spiral spike, the overall outer contour of the elastic strip formed by a plurality of back-and-forth bends of an elastic steel strip is in the shape of an arch frame, one arch foot of the elastic strip is crimped to the top surface of the cross block on the corresponding side of the bottom cross block of the I-rail, the other arch foot of the elastic strip is crimped to the top surface of the gauge baffle on the corresponding side, a washer is crimped to the arch top of the elastic strip, and the washer A flange nut screwed to the spiral spike is arranged on it, the flange nut is an anti-skid flange nut, and a circle of anti-skid teeth is arranged on the bottom surface of the flange portion of the anti-skid flange nut; the gasket piece is a special-shaped anti-skid gasket, the special-shaped anti-skid gasket comprises an anti-skid gasket body, and the opposite sides of the anti-skid gasket body are respectively provided with a downwardly bent positioning piece A and a B positioning piece, and the A positioning piece and the B positioning piece are respectively anti-rotationally engaged with the elastic steel strip corresponding to the elastic strip; an opening portion is provided in the ring portion of the anti-skid gasket body located between the two positioning pieces; arc-shaped A connecting arms and B connecting arms are respectively arranged on the two opening edges of the opening; the ends of the two connecting arms are arranged adjacent to each other, the top surface of the end of the A connecting arm is provided with A clamping teeth, and the top surface of the end of the B connecting arm is provided with B clamping teeth.

[0008] The thickness of the first connecting arm and the second connecting arm is smaller than the thickness of the anti-slip gasket body.

[0009] The first latching tooth and the second latching tooth are matched with the anti-slip teeth.

[0010] The position height of the tooth tips of the first latching tooth and the second latching tooth is higher than the position height of the top surface of the anti-slip gasket body.

[0011] The opening is a fan-shaped notch with a central angle of 120 degrees.

[0012] The beneficial effect of the utility model is that: due to the adoption of the above technical scheme, the anti-slip and anti-loosening reliability is better through structural clamping, and it can be applied to railway tracks for high-speed trains, with more ideal use effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of an anti-loosening fastening structure of a railway track in the prior art;

[0015] Figure 2 It is a schematic diagram of the splitting of the prior art;

[0016] Figure 3It is a schematic diagram of the utility model;

[0017] Figure 4 It is a disassembly schematic diagram of the utility model;

[0018] Figure 5 It is an omitted schematic diagram of the utility model;

[0019] Figure 6 It is an omitted splitting schematic diagram of the utility model;

[0020] Figure 7 It is a schematic diagram of the special-shaped anti-skid gasket part of the utility model.

[0021] The reference numerals in the accompanying drawings are described as follows: flat washer 1, flat bottom flange nut 2, spiral spike 3, I-rail 4, sleeper 5, gauge baffle 6, rubber pad 7, spring bar 8, anti-skid flange nut 9, anti-skid tooth 9a, special-shaped anti-skid washer 10, A clamping tooth 10a, B clamping tooth 10b, A connecting arm 10c, B connecting arm 10d, A positioning piece 10e, B positioning piece 10f, anti-skid washer body 10g, opening 10h DETAILED DESCRIPTION

[0022] The embodiments of the present utility model are as follows: Figures 3 to 7 As shown, an anti-loosening fastening structure of a railway track is shown, the railway track includes sleepers 5 arranged at intervals, I-rails 4 erected on the sleepers 5, rubber pads 7 are provided at the crimping points between the I-rails 4 and the sleepers 5, corresponding gauge baffles 6 are respectively provided on both sides of the bottom cross block of the I-rail 4, corresponding spiral spikes 3 extending out of the gauge baffles 6 are provided on the sleepers 5 at the corresponding positions below the gauge baffles 6, elastic strips 8 are sleeved on the spiral spikes 3, the overall outer contour of the elastic strips 8 formed by multiple back-and-forth bending of elastic steel strips is in the shape of an arch frame, one arch foot of the elastic strip 8 is crimped to the top surface of the cross block on the corresponding side of the bottom cross block of the I-rail 4, the other arch foot of the elastic strip 8 is crimped to the top surface of the gauge baffle 6 on the corresponding side, a gasket is crimped to the arch top of the elastic strip 8, a flange nut screwed to the spiral spike 3 is provided on the gasket, and the flange nut is anti-slip Flange nut 9, the bottom surface of the flange portion of the anti-skid flange nut 9 is provided with a circle of anti-skid teeth 9a; the gasket piece is a special-shaped anti-skid gasket 10, and the special-shaped anti-skid gasket 10 includes an anti-skid gasket body 10g, and the opposite sides of the anti-skid gasket body 10g are respectively provided with downwardly bent A positioning piece 10e and B positioning piece 10f, and the A positioning piece 10e and the B positioning piece 10f are respectively connected with the elastic steel bar at the corresponding position of the elastic bar 8 for anti-rotation; the ring portion of the anti-skid gasket body 10g located between the two positioning pieces is provided with an opening portion 10h; the two opening edges of the opening portion 10h are respectively provided with arc-shaped A connecting arm 10c and B connecting arm 10d; the ends of the two connecting arms are arranged adjacent to each other, and the top surface of the end of the A connecting arm 10c is provided with A clamping teeth 10a, and the top surface of the end of the B connecting arm 10d is provided with B clamping teeth 10b.

[0023] The thickness of the first connecting arm 10c and the second connecting arm 10d is smaller than the thickness of the anti-slip gasket body 10g.

[0024] The first latching tooth 10a and the second latching tooth 10b are matched with the anti-slip teeth 9a.

[0025] The position height of the tooth tips of the first latching tooth 10a and the second latching tooth 10b is higher than the position height of the top surface of the anti-slip washer body 10g.

[0026] The opening 10h is a fan-shaped notch with a central angle of 120 degrees.

[0027] Further explanation of the utility model: the A positioning piece 10e and the B positioning piece 10f on the special-shaped anti-skid washer 10 are respectively clamped with the elastic steel strips at the corresponding positions of the elastic strip 8. The special-shaped anti-skid washer 10 will not rotate after being clamped. When tightening the anti-skid flange nut 9, a circle of anti-skid teeth 9a on the bottom surface of the anti-skid flange nut 9 is pressed against the A clamping teeth 10a and the B clamping teeth 10b on the top surface of the special-shaped anti-skid washer 10 to clamp the anti-skid flange nut 9 and the special-shaped anti-skid washer 10. The anti-skid flange nut 9 is not easily vibrated out. When installing or disassembling, since the torque of the wrench tool is much larger than the torque formed by vibration, as long as appropriate torque is applied, there is no difficulty. The technology of the utility model is used to improve the anti-loosening performance of traditional rails by replacing the gasket and the flange nut. The transformation cost is low and the effect is quick.

Claims

1. A railway track anti-loosening fastening structure, the railway track comprises sleepers arranged at intervals, an I-rail mounted on the sleepers, a rubber pad is provided at the crimping position between the I-rail and the sleeper, corresponding gauge baffles are respectively arranged on both sides of the bottom cross block of the I-rail, corresponding spiral spikes extending out of the gauge baffle are arranged on the sleepers at the corresponding position below the gauge baffle, an elastic bar is sleeved on the spiral spike, the overall outer contour of the elastic bar formed by a plurality of back-and-forth bending of an elastic steel bar is in an arch frame shape, one arch foot of the elastic bar is crimped to the top surface of the cross block on the corresponding side of the bottom cross block of the I-rail, the other arch foot of the elastic bar is crimped to the top surface of the gauge baffle on the corresponding side, a washer is crimped to the arch top of the elastic bar, and a flange nut screwed to the spiral spike is arranged on the washer, characterized in that: The flange nut is an anti-slip flange nut, and a circle of anti-slip teeth is provided on the bottom surface of the flange portion of the anti-slip flange nut; the gasket piece is a special-shaped anti-slip gasket, which includes an anti-slip gasket body, and the opposite sides of the anti-slip gasket body are respectively provided with downwardly bent positioning pieces A and B positioning pieces, and the A positioning pieces and the B positioning pieces are respectively engaged with the elastic steel strips at the corresponding positions of the elastic strips to prevent rotation; an opening is provided in the ring portion of the anti-slip gasket body located between the two positioning pieces; arc-shaped A connecting arms and B connecting arms are respectively provided on the two opening edges of the opening; the ends of the two connecting arms are arranged adjacent to each other, and the top surface of the end of the A connecting arm is provided with A clamping teeth, and the top surface of the end of the B connecting arm is provided with B clamping teeth.

2. The anti-loosening fastening structure of a railway track according to claim 1, characterized in that: The thickness of the first connecting arm and the second connecting arm is smaller than the thickness of the anti-slip gasket body.

3. The anti-loosening fastening structure of a railway track according to claim 2, characterized in that: The first latching tooth and the second latching tooth are matched with the anti-slip teeth.

4. The anti-loosening fastening structure of a railway track according to claim 3, characterized in that: The position height of the tooth tips of the first latching tooth and the second latching tooth is higher than the position height of the top surface of the anti-slip gasket body.

5. The anti-loosening fastening structure of a railway track according to claim 4, characterized in that: The opening is a fan-shaped notch with a central angle of 120 degrees.

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