CN111335080A

CN111335080A - Long and short point rail dislocation device of movable point rail frog

Info

Publication number: CN111335080A
Application number: CN202010433409.8A
Authority: CN
Inventors: 何雪峰; 许有全; 张东风; 李敏; 骆焱; 曹亮; 乔神路; 刘婷林; 赵天运
Original assignee: China Railway Engineering Consulting Group Co Ltd
Current assignee: China Railway Engineering Consulting Group Co Ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-06-26
Anticipated expiration: 2040-05-21
Also published as: CN111335080B

Abstract

The invention is suitable for the technical field of rail transit, and provides a long and short center rail dislocation device of a movable center rail frog, which comprises a rail body assembly, a center rail connecting assembly and a sleeper connecting assembly, wherein the rail body assembly comprises a wing rail, a long center rail, a short center rail, a rail head and rail bottom gap, a long round hole and a sleeper; through setting up apron and slotted hole for the apron passes the rail waist position of long heart rail slotted hole top at the short heart rail, the apron is tight short heart rail web of rail waist earlier in top during bolt-up, ensure apron and rail packing ring simultaneously, the railhead and the rail end of long heart rail and short heart rail leave certain clearance, to the usable adjustment sheet adjustment in clearance of apron and rail packing ring, ensure that bolt fastening power part transmits for long heart rail, long heart rail and short heart rail are permitted to be along vertical relative dislocation in the splice position, the problem of the unable dislocation of long heart rail and short heart rail in the splice position influence the conversion resistance has been solved, long heart rail and short heart rail conversion resistance has been reduced.

Description

Long and short point rail dislocation device of movable point rail frog

Technical Field

The invention belongs to the technical field of rail transit, and particularly relates to a long and short point rail dislocation device of a movable point rail frog.

Background

The connection of a rolling stock from one track branch into or over another track and the crossing equipment branch is called a switch. The turnout is an important component of a railway track structure, and can be realized without the help of the turnout in railway transportation services such as train arrival, concession, overtaking, locomotive pick-up, vehicle shunting, compilation, locomotive vehicle preparation and repair, cargo loading and unloading operation and the like. The movable point rail frog is a frog type of a turnout, has the advantages of continuous tracks, good smoothness, high passing speed, high safety and the like, is widely applied, and adopts movable point rail frog technology for domestic speed-up turnouts, quasi-high-speed turnouts, high-speed turnouts and foreign high-speed turnouts.

The prior No. 18 and the following movable point rail frog is composed of a long point rail, a short point rail, a fork heel rail and a connecting part, wherein the frog point rail is of a single-limb elastically bendable structure: the frog straight-strand point rail is composed of a long point rail and is in an elastic bendable type, in order to reduce the point rail conversion resistance, the long point rail and the short point rail are spliced at the tip end of the short point rail, the connecting structure of the frog straight-strand point rail is composed of a bolt, a nut, a flat washer, a steel rail washer and a gasket, the long point rail and the short point rail are fastened through the bolt, the steel rail washer is used for leveling, and the gasket is used for supporting the long point rail and the short point rail and transmitting the fastening force of the bolt. The existing splicing mode of the long and short center rails ensures the reliability of connection, realizes the longitudinal extension of the center rails at the inclined joints, but because the long center rails and the short center rails are fastened by bolts when being spliced and limited by steel rail bolt holes, the positions are difficult to stagger mutually when the center rails are switched, so that the switching resistance when the center rails are pulled is increased, and the unsmooth switching and the inexistent switching of the center rails are brought.

Disclosure of Invention

The invention provides a long and short point rail dislocation device of a movable point rail frog, and aims to solve the problem that conversion force is overlarge due to the fact that the long and short point rails of the existing movable point rail frog cannot dislocate at the splicing position.

The invention is realized in this way, a movable point rail frog long and short point rail dislocation device, including rail body assembly, point rail coupling assembling and sleeper coupling assembling, the said rail body assembly includes wing rail, long point rail, short point rail, rail head rail bottom gap, slotted hole and sleeper, the said wing rail is fixedly connected with said sleeper, and the said wing cupboard has two, and two said wing rails are located both sides of the said sleeper respectively, the said long point rail is connected with said sleeper rotation, and the said long point rail is located between two said wing rails, the said short point rail is connected with said sleeper rotation, and the said short point rail is located between said long point rail and wing rail, the said rail head rail bottom gap is set up between said long point rail and said short point rail, the said slotted hole is opened on the surface of the junction of said long point rail and short point rail, the said slotted hole takes the form of ellipse;

the point rail connecting component comprises a bolt, a cover plate, an adjusting piece, a steel rail gasket, a nut and a gasket, wherein the bolt is in threaded connection with the short point rail and penetrates through the inner cavities of the long round holes of the long point rail and the short point rail, the nut is in threaded connection with the bolt and is positioned on one side, far away from the long point rail, of the short point rail, the adjusting piece is sleeved on the outer side of the bolt, the cover plate is sleeved on the outer side of the bolt and is positioned on one side, close to the long point rail, of the bolt, the adjusting piece is detachably connected with the cover plate and is sleeved on the outer side of the cover plate, and the gasket is sleeved on the outer side of the adjusting piece and is positioned between the long point rail and the short point rail;

the sleeper connecting assembly comprises a fork and rail, a buckle plate, a bedplate, a fixing bolt, a fixing nut, an elastic strip and an iron base plate, wherein the bedplate is fixedly connected with the short rail and is located at the bottom end of the short rail, the buckle plate is fixedly connected with the bedplate and is located at the top end of the bedplate, the buckle plate is in contact with the short rail, the iron base plate is fixedly connected with the bedplate and is located at the bottom end of the bedplate, the fork and rail is fixedly connected with the iron base plate and is located at the top end of the iron base plate, the fixing bolt is fixedly connected with the iron base plate and is located on one side, away from the short rail, of the fork and rail, the elastic strip is sleeved on the outer side of the fixing bolt, and the fixing nut is in threaded connection with the fixing bolt and is located at the top end of the elastic strip.

Preferably, the point rail connecting component further comprises a washer, and the washer is sleeved on the outer side of the bolt and located between the steel rail washer and the nut.

Preferably, the elastic strip is of an arc structure.

Preferably, sleeper coupling assembling still includes detains the piece, detain the piece with rail sliding connection is followed to the fork, and is located fixing bolt with between the rail is followed to the fork.

Preferably, the buckle block is of an L-shaped structure.

Compared with the prior art, the invention has the beneficial effects that: according to the long and short center rail dislocation device of the movable center rail frog, the cover plate and the long round hole are arranged, so that the cover plate penetrates through the long round hole of the long center rail and abuts against the rail waist of the short center rail, the cover plate abuts against the rail waist of the short center rail first when the bolt is fastened, a certain gap is reserved between the cover plate and a steel rail gasket, between the long center rail and the rail bottom of the short center rail, the gap between the cover plate and the steel rail gasket can be adjusted by using the adjusting sheet, part of fastening force of the bolt is transmitted to the long center rail, the long center rail and the short center rail are allowed to dislocate relative to each other in the longitudinal direction at the splicing position, the problem that the long center rail and the short center rail cannot dislocate at the splicing position, so that the transformation resistance of the long center rail and the short.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the structure of section A-A of the present invention;

FIG. 3 is a schematic cross-sectional view of the structure of the present invention B-B;

FIG. 4 is a schematic view of the configuration of the oblong holes of the present invention;

fig. 5 is a sectional view of the cover plate structure of the present invention.

In the figure: 1-rail body assembly, 11-wing rail, 12-long center rail, 13-short center rail, 14-rail head and rail bottom gap, 15-long round hole, 16-sleeper, 2-center rail connecting assembly, 21-bolt, 22-cover plate, 23-adjusting plate, 24-steel rail gasket, 25-nut, 26-flat gasket, 27-gasket, 3-sleeper connecting assembly, 31-fork-heel rail, 32-buckle plate, 33-bedplate, 34-fixing bolt, 35-fixing nut, 36-elastic strip, 37-iron base plate and 38-buckle block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-5, the present invention provides a technical solution: a long and short point rail dislocation device of a movable point rail frog comprises a rail body assembly 1, a point rail connecting assembly 2 and a sleeper connecting assembly 3, wherein the rail body assembly 1 comprises two wing rails 11, a long point rail 12, a short point rail 13, a rail head rail bottom gap 14, a long round hole 15 and a sleeper 16, the wing rails 11 are fixedly connected with the sleeper 16, the two wing rails 11 are respectively positioned on two sides of the sleeper 16, the long point rail 12 is rotatably connected with the sleeper 16, the long point rail 12 is positioned between the two wing rails 11, the short point rail 13 is rotatably connected with the sleeper 16, the short point rail 13 is positioned between the long point rail 12 and the wing rails 11, the rail head rail bottom gap 14 is arranged between the long point rail 12 and the short point rail 13, the long round hole 15 is arranged on the surface of the connection position of the long point rail 12 and the short point rail 13, and the long round hole 15 is in an oval structure;

the point rail connecting component 2 comprises a bolt 21, a cover plate 22, an adjusting sheet 23, a steel rail gasket 24, a nut 25 and a gasket 27, the bolt 21 is in threaded connection with the short point rail 13 and penetrates through the inner cavities of the long round holes 15 of the long point rail 12 and the short point rail 13, the nut 25 is in threaded connection with the bolt 21 and is positioned on one side of the short point rail 13 far away from the long point rail 12, the adjusting sheet 23 is sleeved on the outer side of the bolt 21, the cover plate 22 is sleeved on the outer side of the bolt 21 and is positioned on one side of the bolt 21 close to the long point rail 12, the adjusting sheet 23 is detachably connected with the cover plate 22 and is sleeved on the outer side of the cover plate 22, and the gasket 27 is sleeved on the outer side of the adjusting sheet 23 and is;

the sleeper connecting assembly 3 comprises a fork rail 31, a pinch plate 32, a bedplate 33, a fixing bolt 34, a fixing nut 35, an elastic strip 36 and an iron base plate 37, the bedplate 33 is fixedly connected with the short rail 13 and is positioned at the bottom end of the short rail 13, the pinch plate 32 is fixedly connected with the bedplate 33 and is positioned at the top end of the bedplate 33, the pinch plate 32 is contacted with the short rail 13, the iron base plate 37 is fixedly connected with the bedplate 33 and is positioned at the bottom end of the bedplate 33, the fork rail 31 is fixedly connected with the iron base plate 37 and is positioned at the top end of the iron base plate 37, the fixing bolt 34 is fixedly connected with the iron base plate 37 and is positioned at one side of the fork rail 31 far away from the short rail 13, the elastic strip 36 is sleeved on the outer side of the fixing bolt 34, and the fixing nut 35 is in threaded connection with the fixing bolt 34 and is.

In the embodiment, the cover plate 22 and the long circular hole 15 are arranged, so that the cover plate 22 penetrates through the long circular hole 15 of the long center rail 12 and abuts against the rail waist position of the short center rail 13, when the bolt 21 is fastened, the cover plate 22 abuts against the rail waist position of the short center rail 13 first, a certain gap is reserved between the cover plate 22 and the steel rail gasket 24, and between the long center rail 12 and the rail bottom of the short center rail 13, the gap between the cover plate 22 and the steel rail gasket 24 can be adjusted by the adjusting plate 23, partial fastening force of the bolt 21 is ensured to be transmitted to the long center rail 12, the long center rail 12 and the short center rail 13 are allowed to relatively dislocate in the longitudinal direction at the splicing position, the problem that the long center rail 12 and the short center rail 13 cannot dislocate at the splicing position to influence the conversion resistance is solved, and the conversion resistance of the long center.

Further, the point rail connecting component 2 further includes a washer 26, and the washer 26 is sleeved on the outer side of the bolt 21 and located between the rail washer 24 and the nut 25.

In the present embodiment, friction between the nut 25 and the rail washer 24 can be avoided by providing the washer 26.

Further, the elastic strip 36 has an arc-shaped structure.

In the present embodiment, the elastic strip 36 is configured to be an arc structure, so that when the fixing nut 35 is screwed, the elastic strip 36 with the arc structure can press and fix the fork and heel rail 31.

Further, sleeper coupling assembling 3 still includes detains piece 38, detains piece 38 and fork and follows rail 31 sliding connection, and is located fixing bolt 34 and fork and follows between rail 31, detains piece 38 and is "L" shape structure.

In this embodiment, the fixing nut 35 drives the elastic strip 36 to press the buckle block 38, so that the fork and heel rail 31 is limited.

The working principle and the using process of the invention are as follows: after the installation of the invention, a cover plate 22 is additionally arranged on the outer side of a bolt 21, a round hole drilled on a long center rail 12 is changed into a long round hole 15, a rail head rail bottom gap 14 is additionally arranged between the long center rail 12 and a short center rail 13, the long round hole 15 penetrates through the long round hole 15 of the long center rail 12 and abuts against the rail waist position of the short center rail 13, when the bolt 21 is fastened, the cover plate 22 firstly abuts against the rail waist position of the short center rail 13, a certain gap is ensured to be reserved between the cover plate 22 and a steel rail gasket 24, and between the long center rail 12 and the rail head and the rail bottom of the short center rail 13, and the gap between the cover plate 22 and the steel rail gasket 24 can be adjusted by using an adjusting sheet 23, so that the fastening.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a movable point rail frog major-minor point rail dislocation device which characterized in that: including rail body subassembly (1), heart rail coupling assembling (2) and sleeper coupling assembling (3), rail body subassembly (1) is including wing rail (11), long heart rail (12), short heart rail (13), railhead rail bottom clearance (14), slotted hole (15) and sleeper (16), wing rail (11) with sleeper (16) fixed connection, just wing rail (11) are equipped with two, and two wing rail (11) are located respectively the both sides of sleeper (16), long heart rail (12) with sleeper (16) rotate to be connected, just long heart rail (12) are located two between wing rail (11), short heart rail (13) with sleeper (16) rotate to be connected, just short heart rail (13) are located between long heart rail (12) and wing rail (11), railhead rail bottom clearance (14) set up in long heart rail (12) with between short heart rail (13), the long round hole (15) is formed in the surface of the joint of the long center rail (12) and the short center rail (13), and the long round hole (15) is of an oval structure;

center rail coupling assembling (2) includes bolt (21), apron (22), trimmer (23), rail packing ring (24), nut (25) and gasket (27), bolt (21) with short center rail (13) threaded connection, and run through in the inner chamber of slotted hole (15) of long center rail (12) and short center rail (13), nut (25) with bolt (21) threaded connection, and be located short center rail (13) are kept away from one side of long center rail (12), trimmer (23) cover is located the outside of bolt (21), apron (22) cover is located the outside of bolt (21), and is located bolt (21) are close to one side of long center rail (12), trimmer (23) with apron (22) can dismantle the connection, and the cover is located the outside of apron (22), gasket (27) cover is located the outside of trimmer (23), and is located between the long rail (12) and the short rail (13);

the sleeper connecting assembly (3) comprises a fork and heel rail (31), a buckling plate (32), a bedplate (33), a fixing bolt (34), a fixing nut (35), an elastic strip (36) and an iron base plate (37), the bedplate (33) is fixedly connected with the short center rail (13) and is positioned at the bottom end of the short center rail (13), the buckling plate (32) is fixedly connected with the bedplate (33) and is positioned at the top end of the bedplate (33), the buckling plate (32) is in contact with the short center rail (13), the iron base plate (37) is fixedly connected with the bedplate (33) and is positioned at the bottom end of the bedplate (33), the fork and heel rail (31) is fixedly connected with the iron base plate (37) and is positioned at the top end of the iron base plate (37), the fixing bolt (34) is fixedly connected with the iron base plate (37) and is positioned at one side of the fork and heel rail (31) far away from the short center rail (13), the elastic strip (36) is sleeved on the outer side of the fixing bolt (34), and the fixing nut (35) is in threaded connection with the fixing bolt (34) and is located at the top end of the elastic strip (36).

2. The movable point frog long and short point rail staggering device according to claim 1, wherein: the point rail connecting component (2) further comprises a washer (26), wherein the washer (26) is sleeved on the outer side of the bolt (21) and is located between the steel rail washer (24) and the nut (25).

3. The movable point frog long and short point rail staggering device according to claim 1, wherein: the elastic strip (36) is of an arc-shaped structure.

4. The movable point frog long and short point rail staggering device according to claim 1, wherein: sleeper coupling assembling (3) still include detain piece (38), detain piece (38) with rail (31) sliding connection is followed to the fork, and is located fixing bolt (34) with between rail (31) are followed to the fork.

5. The movable point frog long and short point rail staggering device according to claim 4, wherein: the buckling block (38) is of an L-shaped structure.