阅读说明：本技术 一种有孔式齿轨铁路扣件 (Porose formula tooth rail railway fastener ) 是由 肖俊恒 李子睿 刘长溪 李志伟 吴玥 于毫勇 张欢 周正 于 2021-01-12 设计创作，主要内容包括：本发明公开了一种有孔式齿轨铁路扣件,包括：对称设置于齿轨两侧的角钢,角钢的竖直面板与齿轨固定,角钢的水平面板上设置有第一通孔,第一通孔内插入设置有与其相匹配的弹性缓冲套,锚固螺栓贯穿弹性缓冲套后紧固在设置于轨枕上的预埋塑料套管内并竖直压紧弹性缓冲套。该有孔式齿轨铁路扣件克股了现有齿轨扣件的不足,具有纵向阻力大、纵向弹性好和绝缘性能高的特点。(The invention discloses a holed toothed rail railway fastener, which comprises: the symmetry sets up in the angle steel of cogged rail both sides, and the vertical panel of angle steel is fixed with the cogged rail, is provided with first through-hole on the horizontal panel of angle steel, and the interpolation is provided with rather than assorted elastic buffer cover in the first through-hole, and anchor bolt runs through behind the elastic buffer cover fastening in setting up the pre-buried plastic sleeve on the sleeper and the vertical elastic buffer cover that compresses tightly. The holed toothed rail railway fastener overcomes the defects of the conventional toothed rail fastener, and has the characteristics of large longitudinal resistance, good longitudinal elasticity and high insulating property.)

1. A foraminiferous formula cogged rail railway fastener which characterized in that includes: the symmetry sets up in angle steel (3) of cogged rail (2) both sides, the vertical panel of angle steel (3) is fixed with cogged rail (2), be provided with first through-hole (20) on the horizontal panel of angle steel (3), the interpolation is provided with rather than assorted elastic buffer cover (10) in first through-hole (20), and anchor bolt (6) run through fastening in setting up in pre-buried plastic sleeve (13) on sleeper (1) behind elastic buffer cover (10) and vertical compressing tightly elastic buffer cover (10).

2. A holed toothed rail railway fastener according to claim 1, characterized in that the anchoring bolt (6) is sleeved in sequence, from top to bottom, with a first spring washer (7) and a first flat washer (9) above the elastic buffer sleeve (10), the first flat washer (9) being in contact with the top end of the elastic buffer sleeve (10) and not in contact with the angle steel (3).

3. A holed toothed rail railway fastener according to claim 2, characterized in that between the toothed rail (2) and the sleeper (1) there is arranged an insulating buffer tie plate (5).

4. A holed toothed rail railway fastener according to claim 3, wherein the two ends of said insulating buffer pad (5) are respectively provided with a second through hole coaxial with said first through hole (20), said anchor bolt (6) is arranged through said second through hole, and the bottom end of said elastic buffer sleeve (10) is pressed against said insulating buffer pad (5).

5. A holed toothed rail railway fastener according to claim 4, characterized in that said elastic buffer sheath (10) comprises: the steel bushing (14), the fixed cover in bottom of steel bushing (14) is equipped with steel ring (15), nested on steel bushing (14) has elastomer (16), the lower extreme of first through-hole (20) is formed with the degree of depth and is not less than step groove (19) of steel ring (15) thickness.

6. A holed toothed rail railway fastening according to claim 5, characterized in that the lower end of the elastomer body (16) rests against the steel ring (15) and the upper end does not protrude from the steel jacket (14).

7. A holed toothed rail railway fastener according to claim 6, characterized in that the top end of the steel jacket (14) is 0.1-1mm higher than the horizontal panel of the angle steel (3).

8. A holed toothed rail railway fastener according to any one of claims 1 to 7, characterized in that at least two second through holes are provided on the vertical panels of said angles (3), a third through hole corresponding to said second through hole is provided on said toothed rail (2), and a fastening bolt (8) passes through said second and third through holes to fix said two angles (3) on the toothed rail (2).

9. A holed toothed rail railway fastener according to claim 8, characterized in that between the vertical panel of the angle steel (3) and the toothed rail (2) is provided an insulating pad (4), on which pad (4) is provided a fourth through hole for the passage of the fastening bolt (8).

10. A holed toothed rail railway fastener according to claim 9, characterized in that said fastening bolt (8) is sheathed, on each side of said toothed rail (2), with a second flat washer (11) and a second spring washer (12), said second flat washers (11) and second spring washers (12) on each side being arranged in sequence in a direction away from said toothed rail (2).

Technical Field

The invention relates to a rail fastener, in particular to a porous toothed rail railway fastener.

Background

The rack-rail railway is a mountain-climbing railway, one or more special toothed rails are laid in the middle of a common railway track, one or more gears are correspondingly arranged on a bogie of a locomotive running on the rack-rail railway, and when a train runs on the rack-rail railway, traction force and braking force are transmitted by meshing the gears and the racks, so that the problem that the adhesion force of the common locomotive is insufficient on a ramp line is solved, the rack-rail railway has strong climbing capability, and the maximum running line gradient is up to 480 per thousand.

The tooth rail railway is mainly used for railway passenger transportation or coal mine underground auxiliary equipment transportation railway mainly for tourism in mountainous scenic areas. The track has the characteristics of strong climbing capability, small turning radius, good safety, low construction cost and the like, and is widely applied to foreign mountainous areas since 1868 in Washington America, and the track technology is gradually mature after multiple optimization improvements in the period. At present, the initial design of lines is finished in the first tooth rail traffic project from the city river weir to the four girl mountain land traffic project in China, and early construction work is started.

The rack mainly bears the traction force when the train ascends a slope and the braking force when the train descends the slope, and the traction force and the braking force are longitudinal force along the direction of the rack, so that the rack fastener is required to have the following three performances: 1) can provide larger longitudinal resistance; 2) because the gear and the rack have certain impact action when being meshed, the rack fastener is required to have better longitudinal elasticity; 3) due to the existence of the track circuit, the insulation performance of the rack rail fastener is good, namely the insulation resistance between the rack rail and the sleeper is high.

The technology of the toothed rail railway is produced, developed and matured abroad, but the toothed rail fastener has obvious defects under the limitation of the technology at that time. The common structure of the rack fastener is shown in fig. 6, holes are drilled on the rack, two positioning angle steels 17 are fixed on two sides of the rack by bolts 18, and the positioning angle steels 17 are fastened by a sleeper preset bolt 18. The fastener can provide larger longitudinal resistance of the rack, but has no longitudinal elasticity, impact load cannot be effectively reduced in the using process, and the fastener and the rack system are easy to damage. And the fastener does not set up the insulation, has certain potential safety hazard to the circuit that has track circuit.

Disclosure of Invention

The invention aims to provide a holed toothed rail railway fastener which overcomes the defects of the conventional toothed rail fastener and has the characteristics of large longitudinal resistance, good longitudinal elasticity and high insulating property.

In order to achieve the above object, the present invention provides a holed rack rail railway fastener, comprising: the symmetry sets up in the angle steel of cogged rail both sides, the vertical panel of angle steel is fixed with the cogged rail, be provided with first through-hole on the horizontal panel of angle steel, it is provided with rather than assorted elastic buffer cover to insert in the first through-hole, and the anchor bolt runs through fastening behind the elastic buffer cover is in setting up the pre-buried plastic sleeve on the sleeper and vertical compressing tightly the elastic buffer cover.

Preferably, a first spring washer and a first flat washer are sequentially sleeved on the anchor bolt from top to bottom above the elastic buffer sleeve, and the first flat washer is in contact with the top end of the elastic buffer sleeve and is not in contact with the angle steel.

Preferably, an insulating buffer base plate is arranged between the tooth rail and the sleeper.

Preferably, two ends of the insulating buffer backing plate are respectively provided with a second through hole coaxial with the first through hole, the anchor bolt penetrates through the second through hole, and the bottom end of the elastic buffer sleeve is pressed on the insulating buffer backing plate.

Preferably, the elastic buffer sleeve includes: the steel bushing, the fixed cover in bottom of steel bushing is equipped with the steel ring, the nested elastomer that has on the steel bushing, the lower extreme of first through-hole is formed with the degree of depth and is not less than the step groove of steel ring thickness.

Preferably, the lower end of the elastic body abuts against the steel ring, and the upper end of the elastic body does not protrude out of the steel sleeve.

Preferably, the top end of the steel sleeve is 0.1-1mm higher than the horizontal panel of the angle steel.

Preferably, at least two second through holes are formed in the vertical panel of the angle steel, a third through hole corresponding to the second through hole is formed in the rack, and a fastening bolt penetrates through the second through hole and the third through hole to fix the two angle steels on the rack.

Preferably, an insulating pad is arranged between the vertical panel of the angle steel and the rack, and a fourth through hole for allowing the fastening bolt to pass through is arranged on the insulating pad.

Preferably, a second flat washer and a second spring washer are respectively sleeved on two sides of the fastening bolt, which are located on the rack, and the second flat washer and the second spring washer located on each side are sequentially arranged in a direction away from the rack.

According to the technical scheme, the holed type toothed rail railway fastener has the following beneficial effects: the holed toothed rail railway fastener overcomes the defects of the conventional toothed rail fastener, and has the characteristics of large longitudinal resistance, good longitudinal elasticity and high insulating property.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic overall structure of a preferred embodiment of a vented rail railway fastener;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic structural view of a preferred embodiment of the elastomeric cushioning sleeve;

FIG. 5 is a schematic cross-sectional view of a preferred embodiment of the location of the elastomeric cushioning sleeve;

fig. 6 is a schematic view of a prior art installation structure of a tooth rail railway fastener.

Description of the reference numerals

1 sleeper 2 rack rail

3 angle steel 4 insulating pad

5 insulating buffer backing plate 6 anchor bolt

7 first spring washer 8 fastening bolt

9 first flat washer 10 elastic buffer sleeve

11 second flat washer 12 second spring washer

13 pre-buried plastic casing 14 steel sleeve

15 steel ring 16 elastomer

17 positioning angle steel 18 bolt

19 stepped groove 20 first through hole

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, unless otherwise specified, directional words included in terms such as "upper, lower, left, right, front, rear, inner, and outer" and the like merely represent the directions of the terms in a normal use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.

Referring to fig. 1-5, a vented rack-and-pinion railway fastener is shown comprising: the symmetry sets up in the angle steel 3 of cogged rail 2 both sides, the vertical panel of angle steel 3 is fixed with cogged rail 2, be provided with first through-hole 20 on the horizontal panel of angle steel 3, it is provided with rather than assorted elastic buffer cover 10 to insert in the first through-hole 20, and anchor bolt 6 runs through fastening is in setting up in the pre-buried plastic casing 13 on sleeper 1 behind the elastic buffer cover 10 and vertical compressing tightly elastic buffer cover 10.

Through the implementation of above-mentioned technical scheme, this porose formula tooth rail railway fastener has following beneficial effect: the holed toothed rail railway fastener overcomes the defects of the existing toothed rail 2 fastener, and has the characteristics of large longitudinal resistance, good longitudinal elasticity and high insulating property. Specifically, the method comprises the following steps: the vertical panel of the angle steel 3 is fixed with the toothed rail 2, and the horizontal panel of the angle steel 3 is limited in position through the elastic buffer sleeve 10, so that the perforated toothed rail railway fastener has the characteristic of large longitudinal resistance; when the toothed rail 2 is subjected to longitudinal acting force, the acting force is transmitted to the elastic buffer sleeve 10 through the angle steel 3, and the perforated toothed rail railway fastener has the characteristic of good longitudinal elasticity under the action of the elastic buffer sleeve 10; in addition, the arrangement of the elastic buffer sleeve 10 can also enable the porous toothed rail railway fastener to have the characteristic of high insulating property.

In this embodiment, in order to further increase the elastic buffering effect, preferably, a first spring washer 7 and a first flat washer 9 are sequentially sleeved on the anchor bolt 6 from top to bottom above the elastic buffering sleeve 10, and the first flat washer 9 is in contact with the top end of the elastic buffering sleeve 10 and is not in contact with the angle steel 3. Through the arrangement, the height of the elastic buffer sleeve 10 is larger than the thickness of the angle steel 3, when the holed type toothed rail railway fastener is normally installed, the angle steel 3 does not bear the fastening force of the anchor bolt 6, but the anchor bolt 6 and the first flat washer 9 limit the angle steel 3 to be separated. Thus, when the rack 2 transmits longitudinal force to the holed rack railway fastener, the angle steel 3 is contacted with the elastic buffer sleeve 10, so that the holed rack railway fastener has longitudinal elasticity, and the friction abrasion between the angle steel 3 and the first flat washer 9 is avoided.

In this embodiment, in order to further increase the insulating effect, an insulating buffer pad 5 is preferably provided between the rack 2 and the sleeper 1.

In this embodiment, in order to further increase the insulation effect and provide a specific installation manner of the insulating buffer pad 5, it is preferable that both ends of the insulating buffer pad 5 are respectively provided with a second through hole coaxial with the first through hole 20, the anchor bolt 6 is disposed through the second through hole, and the bottom end of the elastic buffer sleeve 10 is pressed against the insulating buffer pad 5.

In this embodiment, in order to further provide an elastic buffer sleeve 10, which improves the fastening performance of the elastic buffer sleeve 10, preferably, the elastic buffer sleeve 10 includes: the steel sleeve 14 is fixedly sleeved with a steel ring 15 at the bottom of the steel sleeve 14, an elastic body 16 is nested on the steel sleeve 14, and a step groove 19 with the depth not less than the thickness of the steel ring 15 is formed at the lower end of the first through hole 20. The elastic buffer sleeve 10 is formed by nesting a steel sleeve 14 and an elastic body 16, the steel sleeve 14 transmits the fastening force of the anchor bolt 6 to the insulating buffer base plate 5 and the sleeper 1, the step groove 19 is arranged, when the elastic body 16 provides longitudinal elastic force to generate elastic deformation, the steel ring 15 generates longitudinal displacement, collision between the steel ring 15 and the angle steel 3 is avoided through the arrangement of the step groove 19, and the providing performance of the longitudinal elastic force is improved. The lower surface of the steel ring 15 is not higher than the lower surface of the steel sleeve 14, so that the steel ring 15 can be pressed on the insulating buffer backing plate 5.

In this embodiment, in order not to interfere with the tightening of the steel sleeve 14, it is preferred that the lower end of the elastomer 16 abuts against the steel ring 15 and the upper end does not protrude from the steel sleeve 14. Of course, the upper end of the elastomer 16 may be disposed flush with the top end of the steel sleeve 14 and the lower end disposed flush with the upper surface of the steel ring 15.

In this embodiment, in order to further provide a distance that the top end of the steel jacket 14 is higher than the horizontal panel of the angle steel 3, preferably, the top end of the steel jacket 14 is higher than the horizontal panel of the angle steel 3 by 0.1-1 mm.

In this embodiment, in order to further provide a connection mode between the angle steel 3 and the rack 2, it is preferable that at least two second through holes are provided on a vertical panel of the angle steel 3, a third through hole corresponding to the second through hole is provided on the rack 2, and a fastening bolt 8 penetrates through the second through hole and the third through hole to fix the two angle steels 3 on the rack 2.

In this embodiment, preferably, an insulating pad 4 is disposed between the vertical panel of the angle iron 3 and the rack 2, and a fourth through hole for passing the fastening bolt 8 is disposed on the insulating pad 4. Such as: the tooth rail 2 is punched, the tooth rail 2, the angle steel 3 and the insulating pad 4 are fastened into a whole by two fastening bolts 8, the elastic buffer sleeve 10 is fastened by the anchor bolt 6 with large torque, and the longitudinal force of the tooth rail 2 is borne by the elastic buffer sleeve 10, the insulating buffer base plate 5 and the friction resistance of the sleeper 1.

In addition, the insulating property can be further provided through the insulating pad 4, and the insulation between the tooth rail 2 and the sleeper 1 is further provided through the embedded plastic sleeve 13 and the insulating buffer base plate 5.

In this embodiment, in order to increase the fastening effect between the angle iron 3 and the rack 2, it is preferable that the fastening bolt 8 is sleeved with a second flat washer 11 and a second spring washer 12 on both sides of the rack 2, and the second flat washer 11 and the second spring washer 12 on each side are sequentially arranged in a direction away from the rack 2.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.