CN-121992687-A - Sleeper for installing auxiliary rail

Abstract

The invention discloses a sleeper for installing an auxiliary rail, which relates to the field of railway track engineering and comprises a sleeper body, two rail bearing tables positioned on the sleeper body, a stock rail installation part arranged on the rail bearing tables, and two auxiliary rail installation parts positioned between the two rail bearing tables, wherein the stock rail installation part and the auxiliary rail installation part are both used for installing a steel rail. The invention provides a sleeper for installing an auxiliary rail, which solves the problems of limited rigidity, high derailment risk, insufficient suitability and the like of a rail frame in the prior art, and achieves the purposes of improving the structural performance of the rail, guaranteeing the driving safety, being compatible with the existing production process, maintenance operation and the like.

Inventors

• YOU RUILIN
• FAN JUN
• LIU CHAO
• ZHANG MOYAN
• ZHANG QIAN
• LIN WENKANG
• LIU HAITAO
• ZHAO LEI
• SHI CHENG
• Miao Peiang
• WANG JIJUN
• NING NA
• LIU ZHENJIANG
• MA JIAPEI
• WANG HAIBO
• CHEN YANG
• YUAN JIAYU
• WANG MENG

Assignees

• 中国铁道科学研究院集团有限公司铁道建筑研究所
• 中国铁道科学研究院集团有限公司

Dates

Publication Date

20260508

Application Date

20260408

Claims (10)

1. 1. The sleeper for installing the auxiliary rail comprises a sleeper body (1) and two rail bearing tables positioned on the sleeper body (1), and is characterized in that a basic rail installation part (2) is arranged on the rail bearing tables, the sleeper also comprises two auxiliary rail installation parts (3) positioned between the two rail bearing tables, and the basic rail installation parts (2) and the auxiliary rail installation parts (3) are both used for installing steel rails.
2. 2. A sleeper for mounting an auxiliary rail according to claim 1, wherein the stock rail mounting portion (2) includes a rail receiving groove formed in a top surface of the rail receiving table.
3. 3. A sleeper for mounting an auxiliary rail according to claim 1, characterized in that a plurality of rail fastener mounting holes (4) are provided on the surface of the rail mounting portion (2).
4. 4. Sleeper for mounting auxiliary rails according to claim 1, characterized in that the surface of the auxiliary rail mounting part (3) is provided with several auxiliary rail fastener mounting holes (5).
5. 5. The sleeper for installing the auxiliary rail according to claim 1, wherein the two stock rail installation portions (2) and the two auxiliary rail installation portions (3) are symmetrically distributed along a center line of the length direction of the sleeper body (1).
6. 6. A sleeper for mounting an auxiliary rail according to claim 1, characterized in that the center-to-center distance between adjacent stock rail mounting portions (2) and auxiliary rail mounting portions (3) is 400 to 600mm.
7. 7. The sleeper for installing an auxiliary rail according to claim 1, wherein the sleeper body (1) has a length of 2400-2800 mm, a width of 300-340 mm and a height of 180-260 mm.
8. 8. Sleeper for mounting auxiliary rails according to claim 1, characterized in that the underside of the sleeper body (1) is provided with cleats and/or anti-slip grooves.
9. 9. Sleeper for mounting auxiliary rails according to claim 1, characterized in that the basic rail (6) is mounted on the basic rail mounting part (2) and the auxiliary rail (7) is mounted on the auxiliary rail mounting part (3).
10. 10. A sleeper for mounting auxiliary rails according to claim 9, characterized in that the lateral distance between adjacent basic rails (6) and auxiliary rails (7) is 480-520 mm.

Description

Sleeper for installing auxiliary rail Technical Field The invention relates to the field of railway track engineering, in particular to a sleeper for installing an auxiliary rail. Background The sleeper is used as a core bearing component of a railway track, and the structural design of the sleeper directly influences the overall rigidity of the track, the running stability of a train and the running safety of the train. In the prior art, the conventional sleeper is only used for bearing two steel rails, so that only two groups of track mounting structures are arranged, and along with the continuous development of the track traffic technology, the prior art at least has the following defects: 1. The rigidity of the track frame is limited, the elasticity of the lower foundation is unevenly distributed under the action of high-speed passing or heavy load of the train, and large impact load is easily generated, so that the running stability and riding comfort of the train are poor, and the fatigue damage of the track structure is aggravated; 2. The effective derailment protection mechanism is lacking, if derailment accidents occur in the high-speed running of the train, the wheels are easy to deviate from the track range to cause secondary safety accidents, and the damage is extremely large; 3. The improved sleeper which is partially used for enhancing the structural rigidity or additionally has the derailment protection function often has the problems of complex structure and incompatibility of the production process and the existing production line, so that the production cost is greatly increased, or the conventional maintenance operations such as ballast bed tamping, screening and the like are influenced due to unreasonable structural layout; 4. The suitability is limited, and most of the improved sleepers can only be suitable for one of ballasted tracks or ballastless tracks, so that the universal requirements of different track types are difficult to meet. Therefore, development of a novel sleeper which not only can improve the structural performance of a track and ensure the driving safety, but also is compatible with the existing production process and maintenance operation and is suitable for various track types is needed. Disclosure of Invention The invention provides a sleeper for installing an auxiliary rail, which solves the problems of limited rigidity, high derailment risk, insufficient suitability and the like of a rail frame in the prior art, and achieves the purposes of improving the structural performance of the rail, guaranteeing the driving safety, being compatible with the existing production process, maintenance operation and the like. The invention is realized by the following technical scheme: the sleeper for installing the auxiliary rail comprises a sleeper body, two rail bearing tables positioned on the sleeper body, and two auxiliary rail installation parts positioned between the two rail bearing tables, wherein the rail bearing tables are provided with a stock rail installation part, and the stock rail installation part and the auxiliary rail installation part are both used for installing a steel rail. Aiming at the problems of limited rigidity, high derailment risk, insufficient suitability and the like of a track frame in the prior art, the application provides a sleeper for installing an auxiliary rail, wherein two rail bearing tables on a sleeper body are of an existing conventional sleeper structure. The application also provides two auxiliary rail mounting parts between the two rail bearing tables, so that the sleeper body is provided with two stock rail mounting parts and two auxiliary rail mounting parts, and four rails can be mounted. When the railway track system is used, the railway track system is normally arranged on a ballast track or a concrete base (ballastless track), a train runs on two tracks on two basic track installation parts, at the moment, two steel rails positioned on two auxiliary track installation parts can form a lateral protection barrier, when the train derails, wheels can be blocked by the two steel rails, the derailing accident caused by the derailing range is avoided, and the driving safety coefficient is greatly improved, so that the railway track system is particularly suitable for operation scenes with higher heavy loads, high speeds and other risks. Compared with the prior art, the novel prestressed concrete sleeper has the advantages that the production process and equipment of the prior prestressed concrete sleeper can be adopted, no additional sleeper production line is needed, and the production cost is increased by 5% -8% compared with the prior sleeper through team verification of the inventor, the performance is comprehensively improved, the later maintenance cost and the safety accident loss can be reduced, and the remarkable economic benefit is achieved. In addition, the sleeper can be used for forming a track structure of a four-rail