Track adjustable fastener
The innovative rail track fastener system with pre-buried sleeves and shim layers addresses the limitation of small-scale adjustments by enabling ±120mm lateral and 20mm to +80mm vertical adjustments, enhancing adaptability and reducing costs in the face of natural disasters.
Patent Information
- Application Number
- CN202422294145.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing track fastener system lacks the ability to adjust the left and right and high and low positions significantly during track operation, especially in natural disasters, which is difficult to deal with large-scale changes in the track, resulting in high construction and maintenance costs.
A track adjustable fastener is designed, including left and right adjustment component sets and high and low adjustment component sets. Through the combination of casing fittings and gaskets, the adjustment of about ±120mm and height adjustment of 20mm to +80mm is achieved, enhancing the flexibility and adjustment range of the track.
The tracks are flexibly responding to underground foundation slips after facing natural disasters such as earthquakes, reducing construction and maintenance costs, and improving the safety and adaptability of the railway system.
Smart Images
Figure CN223103380U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of track engineering, and particularly relates to an adjustable track fastener. Background Technique
[0002] The track fastener is used to fix the position of the rail, prevent the longitudinal and lateral displacement of the rail, prevent the rail from tipping over, and at the same time can provide necessary track elasticity and transmit the force received by the rail to the sub-rail foundation.
[0003] The limitation of the current track fastener design lies in its lack of a large-scale flexible adjustment ability for the left-right position and height position of the track. Although there are various methods in the prior art for fine adjustment through fasteners, these adjustments can usually only make small changes, which means that once the track is installed, it is very difficult to make large-scale adjustments during the operation of the track. Especially after natural disasters such as earthquakes, the slippage of the underground foundation will cause large changes in the track. At this time, if the track needs to be re-laid, the construction cost will increase significantly. Therefore, the track fastener system needs to have a larger adjustment range and flexibility so that it can be adjusted timely and effectively when the track changes greatly to ensure the safety and stability of the railway transportation system. At present, the ballastless tracks of high-speed railways in China are mainly adjusted by means of fastener systems, cutting ballastless beds / supporting layers, grouting between ballastless beds and underground foundations, and lateral jacking and deviation correction. However, the adjustment ranges of these methods are small. The left-right adjustment range is usually ±6mm, and the height adjustment range is between -4 and +26mm, which limits the ability to cope with large-scale changes in the track. Therefore, improving the design of the track fastener to provide a larger adjustment range and flexibility will be an important direction to enhance the practicability and adaptability of the railway system. Content of the Utility Model
[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide an adjustable track fastener to solve the problem of small adjustment range of the current track fastener proposed in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] An adjustable track fastener, comprising a ballastless track component group. The ballastless track component group includes a track component. An outer part of the track component is provided with a track fastener body. A roadbed is arranged on a top of the track fastener body. A left-right adjustment component group is arranged between the track fastener body and the roadbed. The left-right adjustment component group is used for enabling the track fastener body and the track component to perform left-right position adjustment. The left-right adjustment component group includes a pre-embedded sleeve component. A substrate component is arranged on a top of the pre-embedded sleeve component. An adjustable distance block is arranged inside the substrate component. A sleeve component body is arranged inside the adjustable distance block. A sleeve groove is arranged on the pre-embedded sleeve component. A height adjustment component group is arranged between the roadbed and the left-right adjustment component group. The height adjustment component group is used for enabling the track fastener body and the track component to perform height position adjustment. The height adjustment component group includes a first gasket. A second gasket is arranged on one side of the first gasket.
[0007] Preferably: The pre-embedded sleeve component, the adjustable distance block, and the sleeve component body are all provided with two groups. The two groups of pre-embedded sleeve components, adjustable distance blocks, and sleeve component bodies are symmetrically distributed on both sides of the track component. The roadbed is provided with a groove at a position corresponding to the pre-embedded sleeve component. The roadbed and the pre-embedded sleeve component are connected through the groove.
[0008] Preferably: The substrate component is connected to a bottom of the track fastener body. The substrate component is provided with a groove at a position corresponding to the adjustable distance block. The substrate component and the adjustable distance block are connected through the groove.
[0009] Preferably: The adjustable distance block is provided with a through hole at a position corresponding to the sleeve component body. The adjustable distance block and the sleeve component body are in contact through the through hole. The pre-embedded sleeve component is provided with a sleeve groove at a position corresponding to the sleeve component body. The pre-embedded sleeve component is in contact with the sleeve component body through the sleeve groove.
[0010] Preferably: Six sleeve grooves are provided. The six sleeve grooves are distributed on the pre-embedded sleeve component.
[0011] Preferably: The first gasket and the second gasket have the same structure.
[0012] Preferably: The first gasket and the second gasket are provided with through grooves at positions corresponding to the pre-embedded sleeve component. The first gasket and the second gasket are in contact between the substrate component and the roadbed. One sides of the first gasket and the second gasket are in contact.
[0013] Compared with the prior art, the beneficial effects of the present utility model are:
[0014] 1. This adjustable track fastener is provided with a left - right adjustment component group. Currently, ballastless tracks cannot significantly adjust the left - right position of the track. In the left - right adjustment component group, when it is necessary to adjust the position of the track component left - right, the sleeve component is unscrewed from the sleeve groove and simultaneously pulled out from the distance - adjusting block. After being pulled out, the track component, along with the track fastener body and the base plate component, can be moved left - right. After moving to the appropriate position, the sleeve component is passed through the through - hole on the distance - adjusting block and screwed into the sleeve groove at the mating position, thus achieving the function of left - right position adjustment. The adjustment range of this left - right position is ±120 mm, which is larger than the ±6 mm of left - right position adjustment in the current technology. This adjustment ability enables the track to more flexibly adapt to the slippage of the underground foundation in the face of natural disasters such as earthquakes, avoiding the need for re - paving, and thus reducing the construction and maintenance costs;
[0015] 2. This adjustable track fastener is provided with a height - adjustment component group. Currently, ballastless tracks cannot significantly adjust the height position of the track. In the combined use of the left - right adjustment component group and the height - adjustment component group, by increasing and decreasing the usage amount of shim one and shim two, the distance between the ballast bed and the base plate component is raised or lowered, achieving the purpose of increasing the adjustment range of the track component. The design of this height - adjustment component group enables the height adjustment ability to be not less than 20 mm to +80 mm, which has a larger adjustment range compared to 4 to +26 mm in the current domestic existing technology. Such an improvement can better meet the requirements under different topographical and geological conditions, ensuring the safety and stability of the railway transportation system. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0017] Figure 2 is a schematic diagram of the overall two - dimensional structure of the present utility model;
[0018] Figure 3 is a schematic diagram of the overall sectional structure of the present utility model;
[0019] Figure 4 is a schematic diagram of the structure of the ballast bed and the left - right adjustment component group part of the present utility model;
[0020] Figure 5 is a schematic diagram of the structure of the embedded sleeve component part of the present utility model;
[0021] Figure 6 is a two - dimensional schematic diagram of the structure of the embedded sleeve component part of the present utility model;
[0022] Figure 7 is an exploded schematic diagram of the overall structure of the present utility model.
[0023] In the figure: 01, ballastless track component group; 11, track component; 12, track fastener body; 13, roadbed; 02, left - right adjustment component group; 21, embedded sleeve component; 22, base plate component; 23, distance adjustment block; 24, sleeve component body; 25, sleeve groove; 03, height adjustment component group; 31, shim one; 32, shim two. Specific implementation mode
[0024] Please refer to Figure 1-7 , an embodiment provided by the present utility model: A track adjustable fastener, including a ballastless track component group 01. The ballastless track component group 01 includes a track component 11. An external part of the track component 11 is provided with a track fastener body 12. A roadbed 13 is arranged on the top of the track fastener body 12. A left - right adjustment component group 02 is arranged between the track fastener body 12 and the roadbed 13. The left - right adjustment component group 02 is used to enable the track fastener body 12 and the track component 11 to be adjusted in the left - right position. The left - right adjustment component group 02 includes an embedded sleeve component 21. A base plate component 22 is arranged on the top of the embedded sleeve component 21. A distance adjustment block 23 is arranged inside the base plate component 22. A sleeve component body 24 is arranged inside the distance adjustment block 23. A sleeve groove 25 is arranged on the embedded sleeve component 21; A height adjustment component group 03 is arranged between the roadbed 13 and the left - right adjustment component group 02. The height adjustment component group 03 is used to enable the track fastener body 12 and the track component 11 to be adjusted in the height position. The height adjustment component group 03 includes a shim one 31. A shim two 32 is arranged on one side of the shim one 31.
[0025] Both the embedded sleeve component 21, the distance adjustment block 23 and the sleeve component body 24 are provided with two groups, and the two groups of embedded sleeve components 21, distance adjustment blocks 23 and sleeve component bodies 24 are symmetrically distributed on both sides of the track component 11. The roadbed 13 is provided with a groove at the position corresponding to the embedded sleeve component 21, and the roadbed 13 and the embedded sleeve component 21 are connected through the groove.
[0026] The base plate component 22 is connected to the bottom of the track fastener body 12. The base plate component 22 is provided with a groove at the position corresponding to the distance adjustment block 23, and the base plate component 22 and the distance adjustment block 23 are connected through the groove.
[0027] The distance adjustment block 23 is provided with a through - hole at the position corresponding to the sleeve component body 24. The distance adjustment block 23 and the sleeve component body 24 are in contact through the through - hole. The embedded sleeve component 21 is provided with a sleeve groove 25 at the position corresponding to the sleeve component body 24. The embedded sleeve component 21 is in contact with the sleeve component body 24 through the sleeve groove 25.
[0028] Six sleeve grooves 25 are provided, and the six sleeve grooves 25 are distributed on the embedded sleeve component 21.
[0029] The shim one 31 and the shim two 32 have the same structure.
[0030] The first gasket 31 and the second gasket 32 are provided with through slots at positions corresponding to the embedded sleeve members 21. The first gasket 31 and the second gasket 32 are in contact between the substrate member 22 and the roadbed 13, and one side of the first gasket 31 and the second gasket 32 is in contact.
[0031] Working principle: The current ballastless track cannot significantly adjust the left - right position of the track. In the left - right adjustment component group 02, when it is necessary to adjust the position of the track member 11 left - right, by screwing out the sleeve - member body 24 from the sleeve slot 25 and at the same time pulling out the sleeve - member body 24 from the distance - adjusting block 23. After pulling out, the track member 11 together with the track fastener body 12 and the substrate member 22 can be moved left - right. After moving to the appropriate position, let the sleeve - member body 24 pass through the through - hole on the distance - adjusting block 23 and screw it into the sleeve slot 25 at the mating position, so as to achieve the function of left - right position adjustment. The range of this left - right position adjustment is ±120 mm. Compared with the ±6 mm of left - right position adjustment in the current technology, it has a larger adjustment range, enabling the track to more flexibly respond to the slippage of the underground foundation after natural disasters such as earthquakes, and at the same time avoiding the need for re - paving, thus reducing the construction cost and maintenance cost. The current ballastless track cannot significantly adjust the high - low position of the track. In the combined use of the left - right adjustment component group 02 and the high - low adjustment component group 03, by increasing and decreasing the usage amount of the first gasket 31 and the second gasket 32, the distance between the roadbed 13 and the substrate member 22 is raised or lowered by the first gasket 31 and the second gasket 32, achieving the purpose of increasing the adjustment range of the track member 11. The design of this high - low adjustment component group 03 enables the high - low adjustment ability to be not less than 20 mm to +80 mm. Compared with the 4 to +26 mm in the current domestic existing technology, it has a larger adjustment range. Such an improvement can better meet the requirements under different topographic and geological conditions, ensure the safety and stability of the railway transportation system, enable the track fastener system to have a larger adjustment range and flexibility, thus better coping with challenges brought by factors such as topographic changes and natural disasters, reducing the construction cost and maintenance cost, and enhancing the practicality and adaptability of the railway system.
Claims
1. An adjustable track fastener, characterized in that: Comprising a ballastless track component group, the ballastless track component group includes track components, and a track fastener body is arranged outside the track components, and a roadbed is arranged on the top of the track fastener body. A left-right adjustment component group is arranged between the track fastener body and the roadbed. The left-right adjustment component group is used to enable the left-right position adjustment of the track fastener body and the track components. The left-right adjustment component group includes an embedded sleeve component. A base plate component is arranged on the top of the embedded sleeve component. An adjustable distance block is arranged inside the base plate component. A sleeve component body is arranged inside the adjustable distance block. A sleeve groove is arranged on the embedded sleeve component. A height adjustment component group is arranged between the roadbed and the left-right adjustment component group. The height adjustment component group is used to enable the height position adjustment of the track fastener body and the track components. The height adjustment component group includes a first gasket. A second gasket is arranged on one side of the first gasket.
2. The adjustable track fastener according to claim 1, characterized in that: Two sets of the embedded sleeve components, adjustable distance blocks and sleeve component bodies are arranged, and the two sets of embedded sleeve components, adjustable distance blocks and sleeve component bodies are symmetrically distributed on both sides of the track components. Grooves are arranged on the roadbed at positions corresponding to the embedded sleeve components, and the roadbed is connected to the embedded sleeve components through the grooves.
3. The adjustable track fastener according to claim 1, wherein: The base plate component is connected to the bottom of the track fastener body. Grooves are arranged on the base plate component at positions corresponding to the adjustable distance blocks, and the base plate component is connected to the adjustable distance blocks through the grooves.
4. The adjustable track fastener according to claim 1, characterized in that: Through holes are arranged on the adjustable distance blocks at positions corresponding to the sleeve component bodies. The adjustable distance blocks are in contact with the sleeve component bodies through the through holes. Sleeve grooves are arranged on the embedded sleeve components at positions corresponding to the sleeve component bodies. The embedded sleeve components are in contact with the sleeve component bodies through the sleeve grooves.
5. The adjustable track fastener according to claim 1, wherein: Six sleeve grooves are arranged, and the six sleeve grooves are distributed on the embedded sleeve components.
6. The adjustable track fastener according to claim 1, characterized in that: The first gasket and the second gasket have the same structure.
7. An adjustable track fastener according to claim 1, characterized in that: Through grooves are arranged on the first gasket and the second gasket at positions corresponding to the embedded sleeve components. The first gasket and the second gasket are in contact between the base plate component and the roadbed, and one side of the first gasket and the second gasket is in contact.