CN112962360A

CN112962360A - Novel device for rail

Info

Publication number: CN112962360A
Application number: CN202110295557.2A
Authority: CN
Inventors: 邢庆财
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-06-15

Abstract

The invention discloses a novel device for a rail, which comprises a rail protection iron base plate, a special bearing and a wheel protection rail, wherein the upper part of the rail protection iron base plate is connected with a lower strand of steel rail through a rail bottom rubber pad, one side in the lower strand of steel rail is fixed through a gap jackscrew, the wheel protection rail is additionally provided with the special bearing, the special bearing and the wheel protection rail are assembled into a device whole, the rear part of the device whole is fixed on a wheel protection rail baffle seat through a bolt, and the tail end of the bolt is additionally provided with a special-tooth nut; the special bearing can realize the rotation in any direction of 360 degrees, does the rotation of 'tangential pressure bearing thrust' along with the wheel, forces the wheel to do the longitudinal 'arc inertia displacement' reciprocating and circulating motion to solve the abrasion problem between the inner side of the wheel rim of the lower wheel and the wheel protecting rail, and is internally provided with an oil tank, and the top end of the oil tank is provided with an oil nozzle. Compared with the prior art, the invention has the advantages that: effectively reduces the cost of manpower and material resources, prolongs the service life of the steel rail and ensures the safety of the steel rail.

Description

Novel device for rail

Technical Field

The invention relates to rail transit equipment, in particular to a novel device for a rail.

Background

The rail abrasion on the small-radius curve mainly comprises three forms of the inner side abrasion of an upper strand rail, the head crushing of a lower strand rail and the waveform abrasion of the upper strand and the lower strand, wherein the inner side abrasion of the upper strand rail on the small-radius curve is most prominent. At present, the measures for renovating the side grinding of the upper strand steel rail of a small-radius curve are summarized as follows: 1) oiling to reduce the friction coefficient between the wheel flange and the steel rail acting edge; 2) the strength and the hardness of the steel rail are improved; 3) the straight and curved steel rails are used alternately or the curved upper and lower steel rails are used alternately for edge adjustment; 4) maintaining the comprehensive reinforced curve line; 5) and (4) asymmetric grinding of the steel rail and other measures.

Disclosure of Invention

The invention aims to solve the technical problems that the traditional method for repairing and controlling the abrasion of the steel rail of the small-radius curve track has limited effect, the side abrasion loss of the steel rail is reduced, a large amount of manpower and material resources are still consumed to replace the steel rail every year, the maintenance cost is increased, and the current requirement is not met.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a novel device for a rail comprises a rail protection iron base plate, a special bearing and a wheel protection rail, wherein the upper part of the rail protection iron base plate is connected with a lower strand of rail through a rail bottom rubber pad, one side in the lower strand of rail is fixed through a gap jackscrew, the wheel protection rail is additionally provided with the special bearing, the special bearing and the wheel protection rail are assembled into a device whole, the rear part of the device whole is fixed on a wheel protection rail baffle seat through a bolt, and the tail end of the bolt is additionally provided with a special-tooth nut; the special bearing can realize the rotation in any direction of 360 degrees, does the rotation of 'shear-rotation bearing thrust' along with a wheel, and forces the wheel to do longitudinal 'arc inertia displacement' reciprocating circular motion to solve the problem of abrasion between the inner side of the rim of the lower wheel and a wheel protecting rail, an oil tank is arranged in the shell of the special bearing, and the top end of the oil tank is provided with an oil nozzle;

and the gap jackscrew is sequentially provided with a spring washer, a flat washer and a nut which are matched from top to bottom.

Compared with the prior art, the invention has the advantages that: 1) in a standard major repair period, the maintenance cost can be reduced by 8600 thousands every 1km of small-radius curve line, the economic benefit is improved by 456.30%, the workload of rail replacement due to rail abrasion in every year is greatly reduced, and the cost of manpower and material resources is effectively reduced;

2) the wheel-protecting rail iron backing plate, the large rubber pad and the wheel-protecting rail with the special bearing are used for the lower strand of the curve, so that the rigidity of a lower strand rail frame can be enhanced, the bearing capacity of the lower strand rail can be indirectly shared, the elasticity of the lower strand rail, a sleeper and a track bed is improved, the bearing capacity of the sleeper on the rail is enhanced, and the problems of weight deviation and head crushing damage of the lower strand rail caused by the ultrahigh curve can be greatly improved;

3) the rail section line of the wheel guard rail with the special bearing has the functions of preventing the train from being off line and protecting the train for the second time after the line is off line;

4) the longitudinal rigidity of a line frame can be increased, and the longitudinal stability of the line and the safety coefficient of an anti-expansion rail track are improved;

5) the application of the wheel protecting rail with the special bearing can solve the problem of side abrasion of the wheel rim of the vehicle wheel set on a small-radius curve, and prolong the service life and the replacement period of the wheel set; therefore, the maintenance cost of the vehicle is reduced, and the economic benefit is improved.

As an improvement, the lower part of the guard rail iron base plate is additionally provided with a guard rail iron base plate rubber pad with a matched specification, and the guard rail iron base plate which is provided with the guard rail iron base plate rubber pad and is positioned at the lower strand of the rail curve can increase the rigidity of the lower strand rail frame and indirectly share the bearing capacity of the lower strand rail.

As an improvement, the special bearing axis is 2.0mm protruded from the top surface of the basic rail.

As an improvement, a dovetail-shaped or other-shaped groove for mounting a special bearing is arranged on the wheel protecting rail, the groove is manufactured by a precision machine tool or is manufactured by a tire together with the wheel protecting rail, and then the groove is precisely machined by the machine tool for the second time; the wheel guard rail and the special bearing are assembled in an interference fit mode and assembled into an integral component through cold pressing.

As an improvement, after the special bearing is assembled on the wheel guard rail, the outer vertical surface of the wheel guard rail and the outer vertical surface of the special bearing are flush, the steel balls exposed after the special bearing is injected with the lubricant can rotate in any direction of 360 degrees, and the special bearing is provided with a corresponding heat dissipation function device.

Drawings

Fig. 1 is a schematic structural view of a new installation for a rail of a track.

Fig. 2 is a schematic view of a special bearing for a new installation for a railway rail.

Fig. 3 is a schematic view of a special bearing for a new installation for a railway rail, in a top view.

Fig. 4 is a schematic plan view of the assembly of the new device for a rail of a rail, viewed from above.

As shown in the figure: 1. the rail protection iron base plate comprises a rail protection iron base plate rubber pad 2, a rail protection iron base plate 3, a rail bottom rubber pad 4, a spring washer 5, a flat washer 6, a nut 7, a lower strand steel rail 8, a special bearing 9, a wheel protection rail 10, a wheel protection rail baffle seat 11, a special-tooth nut 12, a bolt 13, a gap jackscrew 14, an oil injection nozzle 15 and an oil tank.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

When the invention is implemented, the novel device for the rail comprises a guard rail iron base plate 2, a special bearing 8 and a guard wheel rail 9, wherein the guard rail iron base plate comprises the following components: the upper part of the guard rail iron base plate 2 is connected with a lower strand of steel rail 7 through a rail bottom rubber pad 3, one side of the lower strand of steel rail 7 is fixed through a gap jackscrew 13, a special bearing 8 is additionally arranged on the guard wheel rail 9, the special bearing 8 and the guard wheel rail 9 are assembled into a whole device, the rear part of the whole device is fixed on a guard wheel rail baffle seat 10 through a bolt 12, and a special-tooth nut 11 is additionally arranged at the tail end of the bolt 12; the special bearing 8 can realize the rotation in any direction of 360 degrees, and does the rotation of 'cutting pressure-bearing thrust' along with the wheel, so that the wheel is forced to do the longitudinal 'arc inertia displacement' reciprocating circular motion to solve the abrasion problem between the inner side of the rim of the lower wheel and the wheel protecting rail, an oil tank 15 is arranged in the shell of the special bearing 8, and the top end of the oil tank 15 is provided with an oil nozzle 14;

and the gap jackscrew 13 is sequentially provided with a spring washer 6, a flat washer 5 and a nut 4 which are matched from top to bottom.

The lower part of the guard rail iron base plate 2 is additionally provided with a guard rail iron base plate rubber pad 1 with an adaptive specification, and the guard rail iron base plate 2 which is provided with the guard rail iron base plate rubber pad 1 and is positioned at the lower strand of the rail curve can increase the rigidity of a lower strand rail frame and indirectly share the bearing capacity of a lower strand rail.

The axis of the special bearing 8 protrudes 2.0mm from the top surface of the basic rail.

The wheel protecting rail 9 is provided with a dovetail-shaped or other-shaped groove for mounting the special bearing 8, the groove is manufactured by a precision machine tool or is manufactured by a tire together with the wheel protecting rail, and then the groove is precisely machined by the machine tool for the second time; the wheel guard rail 9 and the special bearing 8 are assembled in an interference fit mode and assembled into an integral part through cold pressing.

After the special bearing 8 is assembled on the wheel protecting rail 9, the outer vertical surface of the wheel protecting rail 9 is flush with the outer vertical surface of the special bearing 8, the steel balls exposed after the special bearing 8 is injected with the lubricant can rotate in any direction of 360 degrees, and the special bearing 8 is provided with a corresponding heat dissipation function device.

The working principle of the invention is as follows: the wheel protecting rail with special bearing is installed inside the lower strand of small radius curve to limit the centrifugal distance of the wheel in the lower strand of curve, to take part in or replace the curve guiding of the upper strand of steel rail and to reduce or eliminate the centrifugal force produced by curve, so as to reduce or eliminate the centrifugal extrusion force of the wheel rim of the upper strand of wheel on the curve to the inner side of the upper strand of steel rail, and to reduce or eliminate the wear of the upper strand of steel rail and the wear of the wheel rim of wheel set to the side of steel rail caused by vehicle. The special bearing is arranged on the wheel protecting rail, and the special bearing rotates along with the wheel in a 'shear-rotation pressure-bearing thrust' direction at any 360 degrees to force the wheel to do a longitudinal 'arc inertial displacement' reciprocating circular motion so as to solve the problem of abrasion between the inner side of the wheel rim of the lower-strand wheel and the wheel protecting rail.

The wheel protecting rail is provided with a dovetail-shaped or other-shaped groove for mounting a special bearing, the groove is manufactured by a precision machine tool or manufactured together with the wheel protecting rail and a tire, and then the groove is subjected to precision machining by the machine tool for the second time; the wheel guard rail and the special bearing are assembled in an interference fit mode and assembled into an integral railway component through cold pressing. After the special bearing is assembled on the wheel guard rail, the outer vertical surface of the wheel guard rail and the outer vertical surface of the special bearing are flush, and the special bearing can rotate in any direction of 360 degrees after being injected with the lubricant.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly specifically defined otherwise.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims

1. The utility model provides a novel device for track rail, includes guard rail iron tie plate (2), purpose-made bearing (8) and guard wheel rail (9), its characterized in that: the upper part of the guard rail iron base plate (2) is connected with a lower strand of steel rail (7) through a rail bottom rubber pad (3), one side of the inner side of the lower strand of steel rail (7) is fixed through a gap jackscrew (13), a special bearing (8) is additionally arranged on the guard wheel rail (9), the special bearing (8) and the guard wheel rail (9) are assembled into a whole device, the rear part of the whole device is fixed on a guard wheel rail baffle seat (10) through a bolt (12), and a special-tooth nut (11) is additionally arranged at the tail end of the bolt (12); the special bearing (8) can realize rotation in any direction of 360 degrees, and does 'shear-rotation bearing thrust' rotation along with a wheel to force the wheel to do longitudinal 'arc-shaped inertia displacement' reciprocating circular motion to solve the problem of abrasion between the inner side of the rim of the lower wheel and a wheel protecting rail, an oil tank (15) is arranged in the shell of the special bearing (8), and an oil injection nozzle (14) is arranged at the top end of the oil tank (15);

spring washers (6), flat washers (5) and nut (4) that are equipped with the adaptation from top to bottom add in proper order on clearance jackscrew (13).

2. The new device for a railway rail according to claim 1, characterized in that: the lower part of the guard rail iron base plate (2) is additionally provided with a guard rail iron base plate rubber pad (1) with adaptive specification, and the guard rail iron base plate (2) which is provided with the guard rail iron base plate rubber pad (1) and is positioned at the lower strand of the rail curve can increase the rigidity of the lower strand rail frame and indirectly share the bearing capacity of the lower strand rail.

3. The new device for a railway rail according to claim 1, characterized in that: the axial distance of the special bearing (8) is 2.0mm from the top surface of the basic rail.

4. The new device for a railway rail according to claim 1, characterized in that: the wheel guard rail (9) is provided with a dovetail-shaped or other-shaped groove for mounting a special bearing (8), the groove is manufactured by a precision machine tool or is manufactured by a tire together with the wheel guard rail, and then the groove is precisely machined by the machine tool for the second time; the wheel guard rail (9) and the special bearing (8) are assembled in an interference fit mode and assembled into an integral component through cold pressing.

5. The new device for a railway rail according to claim 1, characterized in that: after the special bearing (8) is assembled on the wheel guard rail (9), the outer vertical surface of the wheel guard rail (9) is flush with the outer vertical surface of the special bearing (8), steel balls which can be exposed after lubricant is injected into the special bearing (8) can rotate in any direction of 360 degrees, and the special bearing (8) is provided with a corresponding heat dissipation function device.