阅读说明：本技术 一种有砟轨道沉降自适应式轨道系统 (Ballasted track settlement self-adaptive track system ) 是由 宁娜 尤瑞林 郄录朝 徐旸 王红 王树国 杜香刚 于 2020-11-10 设计创作，主要内容包括：本发明提供的一种有砟轨道沉降自适应式轨道系统,包括道床、自适应轨枕、钢轨和钢轨扣件,自适应轨枕设置于道床上端,钢轨通过钢轨扣件垂直自适应轨枕轴线安装在自适应轨枕上表面；自适应轨枕包括轨枕本体和自适应装置组,自适应装置组设置于轨枕本体下表面,自适应装置组下表面与道床上表面接触,自适应装置用于通过内部流体颗粒因重力势能下漏提高自适应装置高度,使自适应装置与轨枕密贴,实现支撑。本装置可用于轨枕空吊区段,在列车循环荷载作用下,支座、底座、流体刚性颗粒共同将列车荷载传递至道床。(The invention provides a ballast track settlement self-adaptive track system which comprises a track bed, a self-adaptive sleeper, a steel rail and a steel rail fastener, wherein the self-adaptive sleeper is arranged at the upper end of the track bed, and the steel rail is vertically arranged on the upper surface of the self-adaptive sleeper through the steel rail fastener and the axis of the self-adaptive sleeper; the self-adaptive sleeper comprises a sleeper body and a self-adaptive device set, the self-adaptive device set is arranged on the lower surface of the sleeper body, the lower surface of the self-adaptive device set is in surface contact with the upper surface of a track bed, and the self-adaptive device is used for improving the height of the self-adaptive device through the internal fluid particles which leak under the gravitational potential energy, so that the self-adaptive device is closely attached to the sleeper and the support is realized. The device can be used for a sleeper empty-hanging section, and under the action of train circulating load, the support, the base and the fluid rigid particles transmit the train load to a railway bed together.)

1. The utility model provides a there is tiny fragments of stone, coal, etc. track to subside self-adaptation formula track system which characterized in that: the self-adaptive sleeper (2) is arranged at the upper end of the track bed (1), and the steel rail (3) is arranged on the upper surface of the self-adaptive sleeper (2) through the steel rail fastener (4) and is perpendicular to the axis of the self-adaptive sleeper (2); self-adaptation sleeper (2) include sleeper body (21) and self-adaptation device group (22), self-adaptation device group (22) set up in sleeper body (21) lower surface, self-adaptation device group (22) lower surface with surface contact on railway roadbed (1), self-adaptation device group (22) are used for leaking down through inside fluid particle because of gravitational potential energy and improve self-adaptation device group (22) height makes self-adaptation device group (22) with the sleeper is sealed, realizes supporting.

2. The ballasted track settlement adaptive track system of claim 1, wherein: self-adaptation device group (22) include the same self-adaptation device (221) of a plurality of structures, self-adaptation device (221) set up in the sleeper lower surface, self-adaptation device (221) include support (2211), base (2212) and fluid rigidity granule (2213), support (2211) set up in sleeper body (21) lower surface, support (2211) is hollow cube, support (2211) lower surface is provided with the discharge opening, base (2212) is the upper surface and takes out the shell cuboid, base (2212) notch with support (2211) periphery transition fit, fluid rigidity granule (2213) set up in support (2211) hollow inside.

3. The ballasted track settlement adaptive track system of claim 2, wherein: support (2211) includes box body (22111), inner chamber (22112) and backup pad (22113), box body (22111) is cuboid box body (22111) that the shell was taken out to the lower surface, inner chamber (22112) set up in inside box body (22111), backup pad (22113) set up in casing lower surface position, backup pad (22113) is provided with the connecting hole of being connected with inner chamber (22112).

4. The ballasted track settlement adaptive track system of claim 3, wherein: the backup pad (22113) includes first backup pad (221131) and second backup pad (221132), first backup pad (221131) with second backup pad (221132) set up relatively in box body (22111) lower surface position, first backup pad (221131) width with second backup pad (221132) width is less than half of box body (22111) lower surface width, first backup pad (221131) with second backup pad (221132) upper surface is the inclined plane, first backup pad (221131) inclined plane with second backup pad (221132) inclined plane slope is the same and the height descends to central direction.

5. The ballasted track settlement adaptive track system of claim 4, wherein: the lower surface of the first support plate (221131) and the lower surface of the second support plate (221132) of each adaptive device (221) are the same height.

6. The ballasted track settlement adaptive track system of claim 1, wherein: the steel rail (3) comprises a first steel rail (31) and a second steel rail (32), and the first steel rail (31) and the second steel rail (32) are arranged on the upper surface of the sleeper in parallel.

7. The ballasted track settlement adaptive track system of claim 6, wherein: rail fastener (4) include first rail fastener (41) and second rail fastener (42), first rail fastener (41) set up in the sleeper upper surface detains first rail (31), second rail fastener (42) set up in the sleeper with the upper surface position of first rail fastener (41) symmetry, detain second rail (32).

Technical Field

The invention relates to the technical field of railway engineering testing, in particular to a self-adaptive sleeper for track bed settlement.

Background

The track structure is in contact with a train operating at high speed, wherein the ballast bed is the most important component in the track structure and has the following functions: (1) bearing the pressure from the sleeper and uniformly transmitting the pressure to the roadbed surface; (2) the longitudinal and transverse resistance of the track is provided, and the stability of the track is kept; (3) provides elasticity for the track, and slows down and absorbs the impact and vibration of the wheel track.

The ballast bed comprises discrete railway ballasts, so that accumulated deformation can occur under the condition of lower foundation settlement under the action of train circulating load, further diseases such as sleeper air suspension are formed, geometric irregularity of a line is affected, maintenance workload of the line is increased, and driving safety of a train can be threatened in severe cases.

The prior patent CN103469700A discloses a hydraulic stepless automatic settlement compensation device for a transition section, which comprises an oil cylinder barrel base, a dust cover and a sealing ring, wherein the cylindrical part of a plunger supporting frame is arranged in a cylindrical hole of the oil cylinder barrel base; the plunger bearing frame is provided with an annular groove and a radial hole on the outer cylinder, the two ends of the radial hole are respectively communicated with the annular groove and the cylindrical oil pool, the side surface of the upper end of the plunger bearing frame is provided with a breathing hole, a waterproof and dustproof cover is arranged in the cylindrical hole of the upper end of the plunger bearing frame, the oil cylinder barrel base is fixed on a roadbed ballast, and the plunger bearing frame and a sleeper are connected into a whole through a bolt by a pressing block. The invention has the characteristics of simple structure, automatic adjustment, reliable work and the like, can solve the problem of irregularity caused by uneven settlement of the line, and can also alleviate the impact of locomotive wheels on steel rails by utilizing the elasticity of liquid.

But it is greatly affected by the operating temperature and there is a problem of vibration of the hydraulic components.

A self-adaptive track system is needed, so that the phenomenon of hanging sleepers in the air can be avoided, and the maintenance workload of a line is reduced. When the railway bed does not subside, the self-adaptive sleeper is as high as a common sleeper, and when the railway bed subsides, the self-adaptive movable unit at the bottom of the sleeper falls under the action of gravity, so that the force bearing area at the bottom of the sleeper is automatically increased. Thereby achieving the purpose of self-adapting track bed settlement.

Disclosure of Invention

The invention aims to solve the problems that accumulated deformation can occur under the condition of lower foundation settlement in the prior art, further diseases such as sleeper air suspension are formed, geometric irregularity of a line is influenced, maintenance workload of the line is increased, and the driving safety of a train can be threatened in serious cases. An adaptive track system for regulating sedimentation using fluid rigid particles is provided that solves the above problems.

The invention provides a ballast track settlement self-adaptive track system which comprises a track bed, a self-adaptive sleeper, a steel rail and a steel rail fastener, wherein the self-adaptive sleeper is arranged at the upper end of the track bed, and the steel rail is vertically arranged on the upper surface of the self-adaptive sleeper through the steel rail fastener and the axis of the self-adaptive sleeper; the self-adaptive sleeper comprises a sleeper body and a self-adaptive device set, the self-adaptive device set is arranged on the lower surface of the sleeper body, the lower surface of the self-adaptive device set is in surface contact with the upper surface of a track bed, and the self-adaptive device is used for improving the height of the self-adaptive device through the internal fluid particles which leak under the gravitational potential energy, so that the self-adaptive device is closely attached to the sleeper and the support is realized.

The sleeper structure capable of automatically compensating the settlement of the track bed is adopted, so that the phenomenon of empty suspension of the sleeper is avoided, and the maintenance workload of the line is reduced. When the railway bed does not subside, the self-adaptive sleeper is as high as a common sleeper, and when the railway bed subsides, the self-adaptive movable unit at the bottom of the sleeper falls under the action of gravity, so that the force bearing area at the bottom of the sleeper is automatically increased. Thereby achieving the purpose of self-adapting track bed settlement.

The invention relates to a ballast track settlement self-adaptive track system, which is a preferable mode, wherein a self-adaptive device group comprises a plurality of self-adaptive devices with the same structure, each self-adaptive device comprises a support, a base and fluid rigid particles, each support is arranged on the lower surface of a sleeper body, each support is a hollow cube, a discharge hole is formed in the lower surface of each support, each base is a cuboid with a shell drawn from the upper surface, a notch of each base is in transition fit with the periphery of each support, and the fluid rigid particles are arranged in the hollow interior of each support.

The ballast track settlement self-adaptive track system comprises a support, a box body, an inner cavity and a support plate, wherein the box body is a cuboid box body with a shell drawn from the lower surface, the inner cavity is formed in the box body, the support plate is arranged at the lower surface of the shell, and the support plate is provided with a connecting hole connected with the inner cavity.

The ballast track settlement self-adaptive track system comprises a support plate, a first support plate and a second support plate, wherein the first support plate and the second support plate are arranged on the lower surface of a box body in a relative mode, the width of the first support plate and the width of the second support plate are smaller than half of the width of the lower surface of the box body, the upper surfaces of the first support plate and the second support plate are inclined planes, the slopes of the first support plate and the slopes of the second support plate are the same, and the height of the first support plate and the height of the second support plate are reduced towards the center direction.

As an optimal mode, the heights of the lower surfaces of the first supporting plate and the second supporting plate of the respective adaptive devices are the same.

According to the ballast track settlement self-adaptive track system, as a preferable mode, the steel rails comprise the first steel rail and the second steel rail, and the first steel rail and the second steel rail are arranged on the upper surface of the sleeper in parallel.

According to the ballast track settlement self-adaptive track system, as a preferable mode, the steel rail fastener comprises a first steel rail fastener and a second steel rail fastener, the first steel rail fastener is arranged on the upper surface of the sleeper and used for fastening the first steel rail, and the second steel rail fastener is arranged on the upper surface of the sleeper, which is opposite to the first steel rail fastener, and used for fastening the second steel rail.

As an optimal mode, a locking device is arranged between the support and the base.

Under the action of the train circulating load, the support, the base and the fluid rigid particles transmit the train load to the ballast bed together.

The invention has the following beneficial effects:

(1) the sleeper structure capable of automatically compensating the settlement of the track bed is adopted, so that the phenomenon of empty suspension of the sleeper is avoided, and the maintenance workload of the line is reduced;

(2) the self-adaptive sleeper is prevented from falling in the transportation and construction processes by closing the locking device when leaving the factory;

(3) the self-adaptive sleeper can avoid the phenomenon of empty suspension of the sleeper;

(4) the adaptive sleeper may account for track irregularities caused by bed subsidence.

Drawings

Fig. 1 is a schematic diagram of a ballasted track settlement adaptive track system;

FIG. 2 is a schematic diagram of an adaptive sleeper of a ballasted track settlement adaptive track system;

FIG. 3 is a schematic diagram of an adaptive device group of a ballasted track settlement adaptive track system;

FIG. 4 is a schematic diagram of an adaptive device of a ballasted track settlement adaptive track system;

FIG. 5 is a schematic view of a ballasted track settlement adaptive track system support;

fig. 6 is a schematic diagram of a support plate of a ballasted track settlement adaptive track system;

fig. 7 is a schematic view of a ballast track settlement self-adaptive track system steel rail and a fastener.

Reference numerals:

1. a ballast bed; 2. a self-adaptive sleeper; 21. a sleeper body; 22. a set of adaptive devices; 221. an adaptive device; 2211. a support; 22111. a box body; 22112. an inner cavity; 22113; a support plate; 221131, a first support plate; 221132, a second support plate; 2212. a base; 2213. a fluid rigid particle; 3. a steel rail; 31. a first steel rail; 32. a second steel rail; 4. a rail fastener; 41. a first rail fastener; 42. a second rail fastener.

Detailed Description

The technical solutions in the embodiments of the present invention will be made clear below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

As shown in figure 1, there is tiny fragments of stone, coal, etc. track settlement self-adaptation formula track system, including railway roadbed 1, self-adaptation sleeper 2, rail 3 and rail fastener 4, self-adaptation sleeper 2 sets up in railway roadbed 1 upper end, and rail 3 passes through 2 axes of 4 perpendicular self-adaptation sleepers of rail fastener and installs on self-adaptation sleeper 2 upper surface.

As shown in fig. 2, the adaptive sleeper 2 includes a sleeper body 21 and an adaptive device group 22, the adaptive device group 22 is disposed on a lower surface of the sleeper body 21, a lower surface of the adaptive device group 22 is in contact with an upper surface of the track bed 1, and the adaptive device group 22 is configured to raise a height of the adaptive device group 22 by internal fluid particles leaking from a lower surface of the track bed 1 due to gravitational potential energy, so that the adaptive device group 22 is closely attached to the sleeper to realize support.

As shown in fig. 3, the adaptive device set 22 includes two adaptive devices 221 with the same structure and symmetrically arranged, and the adaptive devices 221 are arranged on the lower surface of the sleeper.

As shown in fig. 4, the adaptive device 221 includes a support 2211, a base 2212 and a fluid rigid granule 2213, the support 2211 is disposed on the lower surface of the sleeper body 21, the support 2211 is a hollow cube, the lower surface of the support 2211 is provided with a discharge hole, the base 2212 is a rectangular parallelepiped with a top surface being a hollow shell, a slot of the base 2212 is in transition fit with the periphery of the support 2211, and the fluid rigid granule 2213 is disposed in the hollow interior of the support 2211.

As shown in fig. 5, the holder 2211 includes a box 22111, an inner cavity 22112 and a support plate 22113, the box 22111 is a rectangular box 22111 with a bottom surface being a shell, the inner cavity 22112 is disposed inside the box 22111, the support plate 22113 is disposed on the bottom surface of the shell, and the support plate 22113 is provided with a connecting hole connected to the inner cavity 22112.

As shown in fig. 6, the supporting plate 22113 includes a first supporting plate 221131 and a second supporting plate 221132, the first supporting plate 221131 and the second supporting plate 221132 are oppositely disposed at the lower surface of the cartridge body 22111, the width of the first supporting plate 221131 and the width of the second supporting plate 221132 are smaller than half of the width of the lower surface of the cartridge body 22111, the upper surfaces of the first supporting plate 221131 and the second supporting plate 221132 are inclined planes, and the inclined planes of the first supporting plate 221131 and the inclined planes of the second supporting plate 221132 have the same gradient and the height is reduced toward the center.

As shown in fig. 7, the rail 3 includes a first rail 31 and a second rail 32, and the first rail 31 and the second rail 32 are disposed parallel to each other on the upper surface of the sleeper. The rail fastener 4 includes a first rail fastener 41 and a second rail fastener 42, the first rail fastener 41 is disposed on the upper surface of the sleeper to fasten the first rail 31, and the second rail fastener 42 is disposed on the upper surface of the sleeper symmetrical to the first rail fastener 41 to fasten the second rail 32.

The lower surfaces of first support plate 221131 and second support plate 221132 of respective conforming devices 221 are at the same height.

When the ballast track is constructed, the components are constructed and installed in the same way as a common concrete sleeper.

Self-adaptation sleeper 2 prevents that self-adaptation base 2212 from dropping in transportation and work progress through closing locking device when leaving the factory. After the line is opened and operated, the locking device is opened, and the support 2211 and the base 2212 can slide relatively in the vertical direction. When the ballast bed settles, the base 2212 falls with the ballast bed 1, and the fluid rigid particles 2213 flow out of the support 2211 to fill the gap between the support 2211 and the base 2212.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.