CN219099697U - Sleeve type ballastless pillow-free fastener system for cast-in-situ ballast bed - Google Patents
Sleeve type ballastless pillow-free fastener system for cast-in-situ ballast bed Download PDFInfo
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- CN219099697U CN219099697U CN202223024860.8U CN202223024860U CN219099697U CN 219099697 U CN219099697 U CN 219099697U CN 202223024860 U CN202223024860 U CN 202223024860U CN 219099697 U CN219099697 U CN 219099697U
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Abstract
A cast-in-situ ballast-free sleeper-free fastener system with a sleeve pipe is characterized in that the lower end of an internal thread sleeve pipe is poured in a cast-in-situ ballast; the heightening cushion plate, the under-plate elastic cushion layer, the iron cushion plate and the under-rail cushion layer are sequentially overlapped on the cast-in-situ ballast bed from bottom to top, and composite positioning sleeves are inserted into through holes at two ends of the under-plate elastic cushion layer and the iron cushion plate; the cover plate is arranged above the composite positioning sleeve, the center of the cover plate is provided with a through hole, and rubber nails are arranged at two sides of the lower end surface; the connecting bolts sequentially pass through the through holes, the composite positioning sleeve and the through holes at the two ends of the heightening backing plate and are in threaded connection with the internal thread sleeve; and connecting and fixing the two ends of the iron base plate, the elastic cushion under the plate and the height-adjusting base plate on a pouring gate bed, and enabling the rubber nails to be buckled on the upper surface of the iron base plate. The utility model controls the pre-pressure of the elastic cushion under the plate through the lower pressure cover plate, ensures the rigidity of the elastic cushion under the plate to be in the design requirement, and ensures that the whole set of fastener can meet the minimum rigidity requirement of 20 kN/mm.
Description
Technical Field
The utility model belongs to the technical field of railway fasteners, and particularly relates to a sleeve type ballastless sleeper-free fastener system for a cast-in-situ ballast bed.
Background
The ballastless sleeper-free fastener system is generally applied to light rail turnout projects, has light axle weight and speed of not more than 80km/h, and is mostly applied to working conditions such as viaducts, tunnels and the like. The dominant products are provided by foreign manufacturers such as forskohl, pan Delu and the like. However, the existing ballastless and pillow-free fastener system for the cast-in-situ ballast bed has the problems of difficult rigidity control of the elastic cushion and inconvenient track gauge adjustment.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a sleeve type ballastless pillow-free fastener system of a cast-in-situ ballast bed.
The technical problems to be solved by the utility model are realized by the following technical scheme: a cast-in-place ballast sleeve-type ballastless and pillow-less fastener system, comprising:
the device comprises an iron base plate, an under-rail cushion layer, an under-plate elastic cushion layer, a heightening base plate, an internal thread sleeve, a cover plate and a connecting bolt, wherein the internal thread sleeve is poured in a cast-in-place ballast bed; the height-adjusting cushion plate, the under-plate elastic cushion layer, the iron cushion plate and the under-rail cushion layer are sequentially overlapped on the cast-in-situ ballast bed from bottom to top, and composite positioning sleeves are inserted into through holes at two ends of the under-plate elastic cushion layer and the iron cushion plate; the cover plate is arranged above the composite positioning sleeve, a through hole is formed in the center of the cover plate, and rubber nails are arranged on two sides of the lower end face of the cover plate; the connecting bolts sequentially pass through the through holes, the composite positioning sleeve and the through holes at the two ends of the heightening backing plate and are in threaded connection with the internal thread sleeve; connecting and fixing the two ends of the iron base plate, the under-plate elastic cushion and the height-adjusting base plate on a pouring gate bed, enabling the rubber nails to be buckled on the upper surface of the iron base plate, and enabling the connecting bolts to control the rigidity of the under-plate elastic cushion through the cover plate and the rubber nails;
the steel rail comprises an insulating gauge block, a T-shaped bolt pair, omega-shaped elastic strips and iron seats, wherein the iron seats are arranged at two ends of the upper surface of the iron base plate, and the insulating gauge block is arranged between the iron seats and rail limbs of a steel rail; the omega-shaped elastic strip is fixed on the iron seat through a T-shaped bolt pair and is buckled and pressed on the insulating gauge block.
Furthermore, the composite positioning sleeve consists of an eccentric-free steel sleeve and an eccentric nylon sleeve coated on the outer wall of the eccentric-free steel sleeve, and the iron backing plate transversely moves to realize track gauge adjustment by rotating the composite positioning sleeve by 180 degrees.
Further, the upper end of the composite positioning sleeve is provided with an anti-rotation boss, and the lower end surface of the cover plate is provided with an anti-rotation groove which corresponds to and is matched with the anti-rotation boss, and the anti-rotation boss is embedded into the anti-rotation groove to prevent the composite positioning sleeve from rotating.
Further, the outer wall of the internally threaded sleeve is provided with external threads with large intervals.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The pre-pressure of the elastic cushion under the plate is controlled by controlling the pressing quantity of the cover plate, so that the rigidity of the elastic cushion is ensured to be in the design requirement, and the whole set of fasteners can meet the minimum rigidity requirement of 20 kN/mm.
(2) The binding force between the sleeve and the ballast bed is improved, and the pulling resistance of not less than 60kN can be brought to the fastener system.
(3) The adjustable gauge is increased to the single side + -20 mm through the cooperation of the gauge block and the composite positioning sleeve, which is beneficial to the later maintenance and adjustment of the fastener system.
(4) The whole insulation performance of the fastener system is further improved by adopting the insulation gauge blocks and the composite positioning sleeve.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present utility model;
FIG. 2 is a top plan view of the structure of the present utility model;
FIG. 3 is a front view of the structure of the cover plate of the present utility model;
FIG. 4 is a top view of the structure of the cover plate of the present utility model;
FIG. 5 is a cross-sectional view of the structure of the composite positioning sleeve of the present utility model;
fig. 6 is a top view of the structure of the composite spacer of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to fig. 1 and 2 and specific examples, but embodiments of the present utility model are not limited thereto.
A cast-in-place ballast sleeve-type ballastless and pillow-less fastener system, comprising: the steel rail track comprises an iron base plate 1, an under-rail cushion layer 2, an under-plate elastic cushion layer 3, a height-adjusting base plate 4, an internal thread sleeve 5, a cover plate 7 and a connecting bolt 8, wherein the internal thread sleeve 5 is poured in a cast-in-place ballast bed 6; the height-adjusting cushion plate 4, the under-plate elastic cushion layer 3, the iron cushion plate 1 and the under-rail cushion layer 2 are sequentially overlapped on the cast-in-situ ballast bed 6 from bottom to top, and composite positioning sleeves 9 are inserted into through holes at two ends of the under-plate elastic cushion layer 3 and the iron cushion plate 1; the cover plate 7 is arranged above the composite positioning sleeve 9, a through hole (7-1) is formed in the center of the cover plate 7, and rubber nails (7-2) are arranged on two sides of the lower end face; the connecting bolt 8 sequentially passes through the through hole (7-1), the composite positioning sleeve 9 and the through holes at the two ends of the height-adjusting backing plate 4 and then is in threaded connection with the internal thread sleeve 5; the two ends of the iron base plate 1, the under-plate elastic cushion layer 3 and the height-adjusting base plate 4 are fixedly connected to the cast-in-situ ballast bed 6, the rubber nails (7-2) are buckled on the upper surface of the iron base plate 1, and the connecting bolts 8 control the rigidity of the under-plate elastic cushion layer 3 through the cover plate 7 and the rubber nails (7-2) of the under-plate iron base plate 1, so that the whole set of fasteners can meet the rigidity requirement of the lowest 20 kN/mm.
The steel rail structure further comprises an insulating gauge block 10, a T-shaped bolt pair 11, omega-shaped elastic strips 12 and iron bases 13, wherein the iron bases 13 are arranged at two ends of the upper surface of the iron base plate 1, and the insulating gauge block 10 is arranged between the iron bases 13 and rail limbs of a steel rail 14; the omega-shaped elastic strip 12 is fixed on the iron seat 13 through the T-shaped bolt pair 11 and is buckled on the insulating gauge block 10.
In this embodiment, the iron pad 1, the under-board elastic cushion 3 and the height-adjusting pad 4 all adopt two-hole structures.
In the above embodiment, in order to increase the adjustable track gauge, besides the insulation track gauge block 10 adopts a large-size track gauge block, the composite positioning sleeve 9 is composed of an eccentric-free steel sleeve (9-1) and an eccentric nylon sleeve (9-2) coated on the outer wall of the eccentric-free steel sleeve (9-1), and the track gauge adjustment is realized by rotating the composite positioning sleeve 9 by 180 degrees to enable the iron backing plate 1 to move transversely. The adjustable gauge is increased to the single side + -20 mm through the cooperation of the gauge block and the composite positioning sleeve, which is beneficial to the later maintenance and adjustment of the fastener system. In addition, the connecting bolts 8 are isolated from the under-board elastic cushion layer 3 by the composite positioning sleeve 9, so that the under-board elastic cushion layer 3 is not affected to normally exert elasticity when the connecting bolts 8 are fastened. And the connecting bolt can be protected from shearing by the eccentric-free steel sleeve (9-1).
In the above embodiment, in order to prevent the composite positioning sleeve from rotating due to vibration or the like during the operation of the line. The upper end of the composite positioning sleeve 9 is provided with an anti-rotation boss (9-3), the lower end face of the cover plate 7 is provided with an anti-rotation groove (7-3) which corresponds to and is matched with the anti-rotation boss (9-3), and the anti-rotation boss (9-3) is embedded into the anti-rotation groove (7-3) to prevent the composite positioning sleeve 9 from rotating, so that the track gauge is kept unchanged after adjustment.
In the above embodiment, in order to improve the binding force between the sleeve bolt and the ballast bed, the pulling resistance of not less than 60kN is provided for the fastener system. The outer wall of the internally threaded sleeve 5 is provided with external threads (5-1) with large intervals, so that the contact surface with concrete is enlarged, the binding force between the sleeve and a ballast bed is improved, and the stress of the sleeve is more reasonable.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (4)
1. A cast-in-place ballast-free ballastless sleeper fastener system, comprising: the steel rail casting device comprises an iron base plate (1), an under-rail cushion layer (2), an under-plate elastic cushion layer (3), a height-adjusting base plate (4), an internal thread sleeve (5), a cover plate (7) and connecting bolts (8), wherein the internal thread sleeve (5) is poured in a cast-in-place ballast bed (6); the height-adjusting cushion plate (4), the under-plate elastic cushion layer (3), the iron cushion plate (1) and the under-rail cushion layer (2) are sequentially overlapped on the cast-in-situ ballast bed (6) from bottom to top, and composite positioning sleeves (9) are inserted into through holes at two ends of the under-plate elastic cushion layer (3) and the iron cushion plate (1); the cover plate (7) is arranged above the composite positioning sleeve (9), a through hole (7-1) is formed in the center of the cover plate (7), and rubber nails (7-2) are arranged on two sides of the lower end face; the connecting bolt (8) sequentially passes through the through hole (7-1), the composite positioning sleeve (9) and the through holes at the two ends of the heightening base plate (4) and then is in threaded connection with the internal thread sleeve (5); the two ends of the iron base plate (1), the under-plate elastic cushion layer (3) and the height-adjusting base plate (4) are fixedly connected to a cast-in-place ballast bed (6), the rubber nails (7-2) are buckled and pressed on the upper surface of the iron base plate (1), and the connecting bolts (8) are used for controlling the rigidity of the under-plate elastic cushion layer (3) of the under-plate iron base plate (1) through the cover plate (7) and the rubber nails (7-2);
the steel rail comprises an insulating gauge block (10), a T-shaped bolt pair (11), omega-shaped elastic strips (12) and iron seats (13), wherein the iron seats (13) are arranged at two ends of the upper surface of the iron base plate (1), and the insulating gauge block (10) is arranged between the iron seats (13) and rail limbs of a steel rail (14); the omega-shaped elastic strip (12) is fixed on the iron seat (13) through the T-shaped bolt pair (11) and is buckled and pressed on the insulation gauge block (10).
2. The cast-in-place ballast sleeve-type ballastless and pillow-less fastener system of claim 1, wherein: the composite positioning sleeve (9) is composed of an eccentric-free steel sleeve (9-1) and an eccentric nylon sleeve (9-2) coated on the outer wall of the eccentric-free steel sleeve (9-1), and the iron backing plate (1) is transversely moved to realize track gauge adjustment by rotating the composite positioning sleeve (9) by 180 degrees.
3. A cast in place ballast bed sleeve-type ballastless and pillow-less fastener system according to claim 1 or 2, characterized in that: the upper end of the composite positioning sleeve (9) is provided with an anti-rotation boss (9-3), the lower end face of the cover plate (7) is provided with an anti-rotation groove (7-3) which corresponds to and is matched with the anti-rotation boss (9-3), and the anti-rotation boss (9-3) is embedded into the anti-rotation groove (7-3) to prevent the composite positioning sleeve (9) from rotating.
4. A cast in place ballast sleeve-type ballastless and pillow-less fastener system according to claim 3, wherein: the outer wall of the internally threaded sleeve (5) is provided with external threads (5-1) with large intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024860.8U CN219099697U (en) | 2022-11-14 | 2022-11-14 | Sleeve type ballastless pillow-free fastener system for cast-in-situ ballast bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024860.8U CN219099697U (en) | 2022-11-14 | 2022-11-14 | Sleeve type ballastless pillow-free fastener system for cast-in-situ ballast bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219099697U true CN219099697U (en) | 2023-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223024860.8U Active CN219099697U (en) | 2022-11-14 | 2022-11-14 | Sleeve type ballastless pillow-free fastener system for cast-in-situ ballast bed |
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|---|---|
| CN (1) | CN219099697U (en) |
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2022
- 2022-11-14 CN CN202223024860.8U patent/CN219099697U/en active Active
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