阅读说明：本技术 一种轨道减振扣件 (Track damping fastener ) 是由 王丹 孙照亮 邓娇 严卫民 穆忠鑫 熊学强 颜湘 于 2021-07-27 设计创作，主要内容包括：本发明涉及轨道交通领域,具体是一种轨道减振扣件,包括绝缘包套和两个绝缘轨距块,绝缘包套通过紧固件安装在轨枕上,绝缘包套内开设安装槽,安装槽内由下而上的依次配合安装板下弹性垫板和铁垫板,板下弹性垫板与轨枕相触,铁垫板上部两侧分别设置弹性压紧装置,两个绝缘轨距块分别设置在钢轨底部两侧上,弹性压紧装置压紧对应的绝缘轨距块,绝缘包套上部两侧分别固定安装压板,压板与铁垫板的一侧上部相触。本发明的有益效果是,本发明结构简单且零部件少,绝缘包套通过安装槽将板下弹性垫板和铁垫板在横向和纵向固定,绝缘包套通过压板将板下弹性垫板和铁垫板在竖向固定,从而全方位限制两者位移或偏转,并能减少绝缘包套的磨损。(The invention relates to the field of rail traffic, in particular to a rail vibration damping fastener which comprises an insulating sheath and two insulating gauge blocks, wherein the insulating sheath is arranged on a sleeper through a fastener, an installation groove is formed in the insulating sheath, a lower elastic base plate and an iron base plate are sequentially matched with the installation plate from bottom to top in the installation groove, the lower elastic base plate is contacted with the sleeper, elastic pressing devices are respectively arranged on two sides of the upper part of the iron base plate, the two insulating gauge blocks are respectively arranged on two sides of the bottom of a steel rail, the elastic pressing devices press the corresponding insulating gauge blocks, pressing plates are respectively fixedly arranged on two sides of the upper part of the insulating sheath, and the pressing plates are contacted with the upper part of one side of the iron base plate. The invention has the advantages that the structure is simple, the number of parts is small, the lower elastic base plate and the iron base plate are fixed transversely and longitudinally by the insulating sheath through the mounting groove, and the lower elastic base plate and the iron base plate are fixed vertically by the insulating sheath through the pressing plate, so that the displacement or deflection of the lower elastic base plate and the iron base plate is limited in all directions, and the abrasion of the insulating sheath can be reduced.)

1. A track damping fastener which characterized in that: including insulating canning (2) and two insulating gauge blocks (6), insulating canning (2) are installed on sleeper (1) through the fastener, set up mounting groove (3) in insulating canning (2), from bottom to top cooperate under the mounting panel elastic backing plate (4) and iron tie plate (5) in proper order in mounting groove (3), elastic backing plate (4) touch sleeper (1) under the board, iron tie plate (5) upper portion both sides set up elastic pressing device respectively, two insulating gauge blocks (6) set up respectively on rail bottom both sides, elastic pressing device compresses tightly corresponding insulating gauge block (6), fixed mounting clamp plate (7) are respectively installed to insulating canning (2) upper portion both sides, clamp plate (7) touch one side upper portion of iron tie plate (5).

2. A track dampening clip according to claim 1 in which: elastic pressing device have iron stand (8) and bullet strip (9), iron stand (8) fixed mounting has seted up the through-hole on iron stand (8) on iron backing plate (5), the one end of bullet strip (9) is located the through-hole on iron stand (8), the other end of bullet strip (9) and the insulating gauge block (6) upper portion that corresponds touch.

3. A track dampening clip according to claim 2 in which: one side of the insulating gauge block (6) is arranged on the bottom of the steel rail, a clamping groove (10) is formed in the middle of the other side of the insulating gauge block (6), and the iron base (8) is connected with the clamping groove (10) in a matched mode.

4. A track dampening clip according to claim 1 in which: and an elastic pad (11) under the rail is arranged between the iron pad (5) and the steel rail.

5. A track dampening clip according to claim 4 in which: the side parts of two sides of the elastic pad (11) under the rail are respectively provided with a limiting plate (12), the middle part of one side of the limiting plate (12) is provided with a limiting groove (13), and the elastic pressing device is installed in a matching way with the limiting groove (13).

6. A track dampening clip according to claim 1 in which: the fastener be two at least spiral spike (14), set up two at least connecting holes on insulating canning (2), the aperture of connecting hole is greater than the diameter of spiral spike (14) and is less than the width of the head of spiral spike (14), two at least screw holes are seted up on sleeper (1) upper portion, spiral spike (14) pass corresponding connecting hole and are connected with the screw hole cooperation that corresponds.

7. A track dampening clip according to claim 6 in which: the spiral spike (14) is provided with a flat gasket (15), and the flat gasket (15) is positioned at the upper part of the insulating sheath (2).

8. A track dampening clip according to claim 7 in which: the spiral spike (14) is provided with a spring washer (16), and the spring washer (16) is positioned at the upper part of the flat washer (15).

9. A track dampening clip according to claim 6 in which: the two connecting holes are symmetrically distributed along the diagonal line of the insulating sheath (2).

10. A track dampening clip according to claim 4 in which: the insulating track gauge block (6) is positioned on the upper part of the elastic pad (11) under the track.

Technical Field

The invention relates to the field of rail transit, in particular to a rail vibration reduction fastener.

Background

With the vigorous development of urban rail transit, the problems of vibration and noise caused by the vibration and noise are more and more obvious, the research on vibration and noise reduction of urban rail transit is more and more important, and the adoption of a vibration reduction fastener is one of effective measures for relieving environmental vibration and noise. The common fastener type in urban rail transit is double-deck damping fastener, and double-deck damping fastener contains two-layer iron tie plate, is last iron tie plate and lower iron tie plate respectively, presss from both sides tightly middle elastic backing plate through self-locking structure between last iron tie plate and the lower iron tie plate.

The double-layer vibration-damping fastener main body parts comprise locking rings, locking cover plates, spiral spikes, spring washers, flat washers, upper iron base plates, lower rail elastic base plates, middle elastic base plates, lower plate insulating base plates, insulating gauge blocks and elastic strips, and the double-layer vibration-damping fastener main body parts are large in number and inconvenient to install and maintain.

The middle elastic backing plate is clamped between the upper iron backing plate and the lower iron backing plate of the double-layer vibration damping fastener through a self-locking structure, is influenced by manufacturing errors and thinning of the middle elastic backing plate in operation, and is not effectively constrained in the transverse direction and the longitudinal direction, so that the middle elastic backing plate is easy to shift or deflect.

Disclosure of Invention

In order to solve the problem, the invention provides a track vibration-damping fastener which is simple in structure, small in number of parts and convenient to install and maintain and can limit the displacement or deflection of an iron base plate and an elastic base plate under the plate.

The invention relates to a track vibration damping fastener which comprises an insulating sheath and two insulating gauge blocks, wherein the insulating sheath is arranged on a sleeper through a fastener, an installation groove is formed in the insulating sheath, a lower elastic base plate and an iron base plate are sequentially matched with the installation plate from bottom to top in the installation groove, the lower elastic base plate is contacted with the sleeper, elastic pressing devices are respectively arranged on two sides of the upper part of the iron base plate, the two insulating gauge blocks are respectively arranged on two sides of the bottom of a steel rail, the elastic pressing devices press the corresponding insulating gauge blocks, pressing plates are respectively fixedly arranged on two sides of the upper part of the insulating sheath, and the pressing plates are contacted with the upper part of one side of the iron base plate.

Further, elasticity closing device have iron stand and bullet strip, iron stand fixed mounting has seted up the through-hole on the iron stand on the iron backing plate, the one end of bullet strip is located the through-hole on the iron stand, the other end of bullet strip touches with the insulating gauge block upper portion that corresponds.

Furthermore, one side of the insulating gauge block is arranged on the bottom of the steel rail, a clamping groove is formed in the middle of the other side of the insulating gauge block, and the iron base is connected with the clamping groove in a matched mode.

Furthermore, an elastic backing plate under the rail is arranged between the iron backing plate and the steel rail.

Furthermore, the lateral parts of the two sides of the elastic base plate under the rail are respectively provided with a limiting plate, the middle part of one side of each limiting plate is provided with a limiting groove, and the elastic pressing device is installed in a matching way with the limiting grooves.

Furthermore, the fastener be two at least screw spike, set up two at least connecting holes on the insulating capsule, the aperture of connecting hole is greater than the diameter of screw spike and is less than the width of the head of screw spike, sleeper upper portion sets up two at least screw holes, the screw spike passes corresponding connecting hole and is connected with the screw hole cooperation that corresponds.

Furthermore, a flat washer is arranged on the screw way nail and is positioned at the upper part of the insulating sheath.

Furthermore, a spring washer is arranged on the screw way nail and is positioned at the upper part of the flat washer.

Furthermore, the number of the connecting holes is two, and the two connecting holes are symmetrically distributed along the diagonal line of the insulating sheath.

Furthermore, the insulating gauge block is positioned at the upper part of the elastic backing plate under the rail.

The invention has the advantages that the structure is simple, the number of parts is small, the lower elastic cushion plate and the iron cushion plate are fixed transversely and longitudinally by the insulating sheath through the mounting groove, and the lower elastic cushion plate and the iron cushion plate are fixed vertically by the insulating sheath through the pressing plate, so that the displacement or deflection of the lower elastic cushion plate and the iron cushion plate can be limited in all directions, the abrasion of the insulating sheath can be reduced, and sand stones and sundries can be prevented from entering the interior of the vibration-damping fastener.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic diagram of the fried open structure of the present invention;

FIG. 3 is a schematic view showing the connection relationship among the insulating sheath, the under-board elastic pad, the iron pad and the pressing plate according to the present invention.

In the figure, the railway track comprises a sleeper 1, a sleeper 2, an insulating sheath 3, a mounting groove 4, an under-rail elastic base plate 5, an iron base plate 6, an insulating track gauge block 7, a pressing plate 8, an iron seat 9, an elastic strip 10, a clamping groove 11, an under-rail elastic base plate 12, a limiting plate 13, a limiting groove 14, a spiral spike 15, a flat washer 16 and a spring washer.

Detailed Description

As shown in attached figures 1-3, the track vibration damping fastener comprises an insulating sheath 2 and two insulating track gauge blocks 6, wherein the insulating sheath 2 is installed on a sleeper 1 through a fastener, a mounting groove 3 is formed in the insulating sheath 2, a lower elastic base plate 4 and an iron base plate 5 are sequentially matched with the mounting plate from bottom to top in the mounting groove 3, the lower elastic base plate 4 is contacted with the sleeper 1, elastic pressing devices are respectively arranged on two sides of the upper portion of the iron base plate 5, the two insulating track gauge blocks 6 are respectively arranged on two sides of the bottom of a steel rail, the elastic pressing devices press the corresponding insulating track gauge blocks 6, pressing plates 7 are respectively and fixedly installed on two sides of the upper portion of the insulating sheath 2, and the pressing plates 7 are contacted with the upper portion of one side of the iron base plate 5. This kind of simple structure and spare part are few, and insulating canning 2 passes through mounting groove 3 with elastic backing plate 4 and iron tie plate 5 under the board transversely with vertical fixed, and insulating canning 2 passes through clamp plate 7 with elastic backing plate 4 and iron tie plate 5 under the board vertically fixed to both displacements of all-round restriction or deflection, and can reduce the wearing and tearing of insulating canning 2, can also prevent that grit, debris from getting into inside the damping fastener.

Elastic pressing device have iron stand 8 and bullet strip 9, iron stand 8 fixed mounting has seted up the through-hole on the iron base 5 on the iron base 8, the one end of bullet strip 9 is located the through-hole on iron stand 8, the other end of bullet strip 9 touches with corresponding insulating gauge block 6 upper portion. The structure can fix the elastic strip 9 through the iron seat 8, and the elastic strip 9 compresses the insulating gauge block 6 at the bottom of the steel rail so as to relieve vibration and reduce noise.

One side of the insulating gauge block 6 is arranged on the bottom of the steel rail, a clamping groove 10 is formed in the middle of the other side of the insulating gauge block 6, and the iron base 8 is connected with the clamping groove 10 in a matched mode. The structure can position and limit the iron base 8 through the insulating gauge block 6, and the displacement or deflection between the iron base and the insulating gauge block is avoided.

And an under-rail elastic pad 11 is arranged between the iron pad 5 and the steel rail.

The lateral parts of the two sides of the elastic pad 11 under the rail are respectively provided with a limiting plate 12, the middle part of one side of the limiting plate 12 is provided with a limiting groove 13, and the elastic pressing device is installed in a matching way with the limiting groove 13. The structure can position and limit the iron seat 8 through the limiting plate 12, and the iron seat and the limiting plate are prevented from generating displacement or deflection.

The fastener be two at least spiral spike 14, set up two at least connecting holes on the insulating canning 2, the aperture of connecting hole is greater than the diameter of spiral spike 14 and is less than the width of the head of spiral spike 14, sleeper 1 upper portion sets up two at least screw holes, spiral spike 14 passes corresponding connecting hole and is connected with the screw hole cooperation that corresponds. The structure is simple and the fixation is firm.

The spiral spike 14 is provided with a flat gasket 15, and the flat gasket 15 is positioned at the upper part of the insulating sheath 2.

The spiral spike 14 is provided with a spring washer 16, and the spring washer 16 is positioned on the upper part of the flat washer 15.

The two connecting holes are symmetrically distributed along the diagonal line of the insulating sheath 2. The structure can ensure that the insulating sheath 2 is fixed stably, and avoid the tilting caused by unbalanced stress on one side.

The insulating gauge block 6 is positioned on the upper part of the elastic backing plate 11 under the rail.

The under-rail elastic cushion plate 11 and the under-plate elastic cushion plate 4 provide rigidity, and the vertical rigidity of the invention can be adjusted by changing the materials, the hardness or the molded surface structures of the under-rail elastic cushion plate 11 and the under-plate elastic cushion plate 4.

In order to realize the insulating effect of the track, the insulating gauge block 6, the under-track elastic base plate 11, the insulating sheath 2 and the under-plate elastic base plate 4 are all made of insulating polymer materials, and the good insulating effect can be realized among the steel rail, the spiral spike 14 and the sleeper 1. The structure can achieve good insulation effect without arranging the insulating base plate under the plate, thereby reducing the installation height of the vibration reduction fastener.

The insulating sheath 2 can be structured without a lower iron backing plate, so that the installation height of the vibration reduction fastener can be reduced.

The invention has simple structure and less parts, and improves the convenience of installation and maintenance; the structure of the invention has no lower insulating base plate and lower iron base plate, thus reducing the installation height of the vibration-damping fastener; the material, hardness and molded surface structure of the elastic backing plate under the rail and the elastic backing plate under the plate can be freely designed, so that the requirements of different rigidities of the rail are met; the insulating high polymer material is adopted between the steel rail and the spiral spike and between the steel rail and the sleeper, so that the insulating property of the rail can be improved; the invention can ensure the rigidity of the track, and the insulating sheath can well limit the displacement or deflection of the iron base plate and the elastic base plate under the plate; sufficient contact areas are reserved among the iron base plate, the elastic base plate under the plate and the insulating sheath, and abrasion of the insulating sheath is reduced. The insulating sheath can prevent grit, debris from getting into inside the damping fastener. The iron base plate and the elastic base plate under the plate can adopt a vulcanization integrated design; the under-rail elastic backing plate and the under-plate elastic backing plate can be made of rubber, CPU, TPEE, TPU or other soft insulating elastomers; the molded surface structures of the under-rail elastic backing plate and the under-plate elastic backing plate can be cylindrical, square and the like; the insulating sheath material can be HDPE, PA or other hard insulating materials; the insulating sheath structure can be annular, square, oval and the like.