CN111455738A - Movable rail bearing groove sleeper - Google Patents

Abstract

The utility model relates to a movable rail-bearing groove sleeper, which can ensure a relatively large adjustment of the rail position under the condition that the installation interface of the rail fastener remains unchanged, and overcome the technical problems of difficult adjustment of the ballastless track and poor elasticity of the ballastless track. It comprises a sleeper block which is arranged horizontally at intervals and is connected as a whole by a connecting device. The sleeper sinker at the bottom of the sleeper top block is accommodated, the sleeper top block and the sleeper bottom block are connected as a whole through the anchoring member, and the backing plate is pressed between the bottom surface of the sleeper sinking groove and the bottom surface of the sleeper top block; Adjustment blocks are embedded between the two sides and the side walls of the sleeper bottom block structure.

Description

A movable rail bearing groove sleeper

technical field

The invention relates to rail transportation, in particular to a movable rail-bearing groove sleeper.

Background technique

Due to the characteristics of stable structure and less maintenance, ballastless track is widely used in the construction of high-speed railways. Furthermore, due to the obvious advantages of shoulder-shoulder sleepers in resisting the lateral force of rails, shoulder-shoulder sleepers are more suitable for high-speed railway construction. For example, the SK-2 type sleeper used in my country's high-speed railway, the high-speed railway fastener matched with the SK-2 type sleeper is the WJ-8 type fastener. The rail position adjustment of high-speed railway tracks mainly relies on fasteners, but limited by fasteners and sleeper rail bearing grooves, the adjustment ability of fasteners is weak, and generally cannot achieve lowering adjustment. Affected by unfavorable geology and other factors, the ballastless track is inevitably deformed, which affects the train operation, ranging from speed limit to traffic safety. The ballastless track fasteners used at this stage do not have large adjustment and rapid adjustment capabilities. It is imminent to adopt a new type of adjustable track structure to improve the adjustment ability of ballastless tracks. It is to reduce the cost of high-speed railways and expand the laying of ballastless tracks. range of must-haves.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a movable rail bearing groove sleeper, so as to ensure that the rail position can be adjusted by a large margin under the condition that the installation interface of the rail fastener remains unchanged, and overcome the difficulty in adjusting the ballastless rail and the poor elasticity of the ballastless rail. technical difficulties.

The technical scheme adopted by the present invention to solve its technical problems is as follows:

A movable rail-bearing groove sleeper of the present invention includes sleeper blocks arranged at horizontal intervals and connected as a whole by a connecting device. A combined sleeper block composed of a bottom block, the sleeper bottom block has a sleeper sinking groove accommodating the bottom of the sleeper top block, the sleeper top block and the sleeper bottom block are connected as a whole by an anchoring member, and the backing plate is pressed against the sleeper sinking between the bottom surface of the groove and the bottom surface of the sleeper top block; an adjustment block is embedded between the lateral sides of the backing plate and the side walls of the sleeper bottom block structure.

The beneficial effects of the present invention are mainly reflected in the following aspects:

1. The sleeper block adopts the combined sleeper block structure. By reasonably setting the number of backing plates of the sleeper top block and adjusting the thickness of the block, the position of the rail can be easily adjusted to a large extent. Under the condition that the installation interface of the parts remains unchanged, the position of the rail can be greatly adjusted, and it is easy to maintain. It is of great significance for emergency rescue and new line construction, and effectively overcomes the technical problems of difficult adjustment of ballastless rails and poor elasticity of ballastless rails;

2. By choosing different materials of the backing plate, the stiffness of the backing plate can be flexibly adjusted according to the needs, and then the overall stiffness of the track structure can be adjusted to realize the rail vibration damping function.

3. The sleeper top block, backing plate and sleeper bottom block are prefabricated in the factory, and the manufacturing quality with the matching precision can be easily guaranteed.

Description of drawings

This manual includes the following six drawings:

1 is a schematic elevational view of a movable rail-bearing groove sleeper of the present invention;

2 is a schematic cross-sectional view of a sleeper main body in a movable rail-bearing groove sleeper of the present invention;

3 is a schematic elevational view of a sleeper top block in a movable rail-bearing groove sleeper of the present invention;

4 is a schematic plan view of a sleeper top block in a movable rail groove sleeper of the present invention;

5 is a cross-sectional view of a sleeper bottom block in a movable rail-bearing groove sleeper of the present invention;

6 is a cross-sectional view of a backing plate in a movable rail-bearing groove sleeper according to the present invention.

The structure and corresponding marks in the figure: sleeper bottom block 10, stop 101, sleeper sinking groove 102, bottom block rib 103, sleeper top block 11, rail bearing groove 111, rail bearing plate 112, shoulder 113, seat plate 114, seat plate rib 115, anchor hole 116, backing plate 12, backing plate groove 121, backing plate rib 122, adjusting block 13, fastener through hole 14, anchoring member 15, connecting device 20, anchoring sleeve 31. Anchoring sleeve 32.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Referring to FIG. 1 , a movable rail-bearing groove sleeper of the present invention includes sleeper blocks which are arranged laterally spaced apart and connected as a whole by a connecting device 20 . The sleeper block is a combined sleeper block composed of a sleeper top block 11 , a backing plate 12 and a sleeper bottom block 10 arranged in sequence from top to bottom. The sleeper bottom block 10 has a sleeper sinking groove for accommodating the bottom of the sleeper top block 11 102 , the sleeper top block 11 and the sleeper bottom block 10 are connected as a whole by the anchoring member 15 , and the backing plate 12 is pressed between the bottom surface of the sleeper sinking groove 102 and the bottom surface of the sleeper top block 11 . Adjustment blocks 13 are embedded between the lateral sides of the backing plate 12 and the structural side walls of the sleeper bottom block 10 .

1 and 2, the present invention effectively overcomes the technical problems of difficulty in adjusting the ballastless track and poor elasticity of the ballastless track. The sleeper block adopts a combined sleeper block composed of a sleeper top block 11, a backing plate 12 and a sleeper bottom block 10. By reasonably setting the number of backing plates 12 and adjusting the thickness of the block 13, the position of the rail can be easily adjusted to a large extent, and the adjustment amount is large. Due to the adjustment amount of the existing fasteners, the position of the rail can be greatly adjusted without changing the installation interface of the fasteners, and it is easy to maintain, which is of great significance whether it is emergency rescue or new line construction. By selecting the backing plate 12 of different materials, the stiffness of the backing plate 12 can be flexibly adjusted according to requirements, thereby adjusting the overall stiffness of the track structure and realizing the rail vibration damping function. The sleeper top block 11 , the backing plate 12 and the sleeper bottom block 10 are prefabricated in the factory, and the manufacturing quality of the matching precision can be easily guaranteed.

Referring to FIGS. 3 and 4 , the sleeper top block 11 is a solid or cavity structure, including a rail-bearing plate 112 , a shoulder 113 and a seat plate 114 condensed into one body, and a rail-bearing groove 111 is formed on the top surface of the rail-bearing plate 112 Above and between the shoulders 113 on both sides. In order to facilitate the positioning of the backing plate 12 , the bottom surface of the seat plate 114 is provided with a downwardly convex seat plate rib 115 . The rail bearing plate 112 is provided with fastener mounting holes 117 for the fastener to pass through the rail bearing plate 112 and the seat plate 114 at horizontal intervals. .

Referring to FIG. 6 , the upper plate surface of the backing plate 12 is provided with a backing plate groove 121 corresponding to the seat plate rib 115 , and the backing plate rib 122 is provided on the lower plate surface. The number of the backing plate 12 is one layer, or at least two layers are arranged in layers, and the upper backing plate convex rib 122 is pressed into the lower backing plate groove 121 . By changing the number or thickness of the backing plates 12, the vertical position of the sleeper top block 11 can be adjusted easily

Referring to FIG. 5 , the lateral sides of the sleeper bottom block 10 are baffles 101 that protrude upward, the sleeper sinking groove 102 is formed between the baffles 101 on both sides, and the bottom surface of the sleeper sinking groove 102 is provided with a backing plate The rib 122 corresponds to the groove 103 of the bottom block. A fastener sleeve 32 corresponding to each fastener installation hole 117 and an anchor sleeve 31 corresponding to the anchor hole 116 are embedded in the sleeper bottom block 10 . The sleeper top block 11 is made of steel, glass fiber reinforced plastic, fiber-based reinforced material, or prefabricated from reinforced concrete.

Referring to FIG. 1 , the bottom of the sleeper bottom block 10 is sunk into the sleeper sinking groove 102 , the anchoring member 15 passes through the anchoring hole 116 to connect the sleeper top block 11 and the sleeper bottom block 10 as a whole, and presses the backing plate 12 between the bottom surface of the sleeper sinking groove 102 and the bottom surface of the seat plate 114 . Adjustment blocks 13 are embedded between the lateral sides of the backing plate 12 and the inner side walls of the baffles 101 . By changing the thickness of the adjustment blocks 13 , the lateral position of the sleeper top block 11 can be adjusted.

Referring to FIG. 1 and FIG. 2 , the connecting device 20 is a steel truss, an angle steel member, a steel rod member or a reinforced concrete structure. The anchoring member 15 is usually composed of bolts and washers. The bolts are sequentially passed through the washers, the sleeper top block 11 and the anchor holes 116 on the backing plate 5 from top to bottom, and screwed into the anchor sleeve 31 in the sleeper bottom block 10 to provide Tightening force, and press the gasket, sleeper top block 11, and backing plate 12 on the sleeper bottom block 10.

The above is only to illustrate some principles of a movable rail groove sleeper of the present invention, and it is not intended to limit the present invention to the specific structure and scope of application shown and described, so all the corresponding modifications that may be used are and equivalents, all belong to the scope of the patent application of the present invention.

Claims (9)

1. A movable rail-bearing groove sleeper, comprising sleeper blocks arranged at horizontal intervals and connected as a whole by a connecting device (20), characterized in that: the sleeper blocks are composed of sleeper top blocks (11) arranged in sequence from top to bottom A combined sleeper block composed of a backing plate (12) and a sleeper bottom block (10), wherein the sleeper bottom block (10) has a sleeper sinking groove (102) for accommodating the bottom of the sleeper top block (11), and the sleeper top block ( 11), the sleeper bottom block (10) is connected as a whole by the anchoring member (15), and the backing plate (12) is pressed between the bottom surface of the sleeper sinking groove (102) and the bottom surface of the sleeper top block (11); the Adjustment blocks (13) are embedded between the lateral sides of the backing plate (12) and the structural side walls of the sleeper bottom block (10). 2. A movable rail-bearing groove sleeper according to claim 1, characterized in that: the sleeper top block (11) is a solid or cavity structure, comprising a rail-bearing plate (112) condensed into one, a shoulder (113) and the seat plate (114), the rail bearing groove (111) is formed on the top surface of the rail bearing plate (112) and between the shoulders (113) on both sides; the bottom surface of the seat plate (114) is provided with There is a downwardly convex seat plate rib (115). 3. A movable rail-bearing groove sleeper according to claim 2, wherein the rail-bearing plate (112) is laterally spaced apart with a seat plate (114) for the fastener to pass through the rail-bearing plate (112) A fastener mounting hole (117) is provided on the seat plate (114), and anchoring holes (116) for the anchoring member (15) to pass through are spaced longitudinally and laterally on the seat plate (114). 4. A movable rail-bearing groove sleeper according to claim 3, characterized in that: the upper plate surface of the backing plate (12) is provided with a backing plate groove ( 121), and a backing plate rib (122) is arranged on the lower plate surface. 5. A movable rail-bearing groove sleeper according to claim 4, characterized in that: the number of the backing plates (12) is one layer, or at least two layers are stacked, and the upper backing plate ridges (122) are pressed against each other. into the groove (121) of the lower backing plate. 6. A movable rail-bearing groove sleeper according to claim 4, characterized in that: the lateral sides of the sleeper bottom block (10) are blocks (101) that protrude upward, and the sleeper sinking groove (102) ) is formed between the baffles (101) on both sides, and a bottom block groove (103) corresponding to the backing plate rib (122) is arranged on the bottom surface of the sleeper sinking groove (102). 7. A movable rail-bearing groove sleeper according to claim 6, characterized in that: fastener sleeves (32) corresponding to fastener installation holes (117) are embedded in the sleeper bottom block (10), Anchoring sleeves (31) corresponding to the anchoring holes (116). 8 . The movable rail-bearing groove sleeper according to claim 1 , wherein the sleeper top block ( 11 ) is made of steel, glass fiber reinforced plastic, fiber reinforced material, or prefabricated from reinforced concrete. 9 . 9 . The movable rail-bearing groove sleeper according to claim 1 , wherein the connecting device ( 20 ) is a steel truss, an angle steel member, a steel rod member or a reinforced concrete structural member. 10 .

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