A kind of movable rail bearing groove sleeper

Abstract

A movable rail groove sleeper is provided to ensure that the position of the rail can be adjusted to a large extent without changing the installation interface of the rail fastener, so as to overcome the technical difficulties of difficult adjustment of ballastless track and poor elasticity of ballastless track. It includes sleeper blocks arranged at intervals in the horizontal direction and connected as a whole by a connecting device, the sleeper block is a combined sleeper block composed of a sleeper top block, a pad and a sleeper bottom block arranged in sequence from top to bottom, the sleeper bottom block has a sleeper sinking groove for 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 pad is pressed between the bottom surface of the sleeper sinking groove and the bottom surface of the sleeper top block; the adjustment block is embedded between the lateral sides of the pad and the side walls of the sleeper bottom block structure.

Description

Technical Field

[0001] The invention relates to rail transportation, in particular to a movable rail bearing groove sleeper. Background Art

[0002] Due to the characteristics of stable structure and low maintenance, ballastless track is widely used in high-speed railway construction. Furthermore, due to the obvious advantages of shouldered sleepers in resisting the lateral force of rails, shouldered sleepers are more suitable for high-speed railway construction. For example, the SK-2 type sleepers used in my country's high-speed railways are matched with WJ-8 type fasteners. The position adjustment of high-speed railway rails is mainly completed by fasteners, but due to the limitations of fasteners and sleeper bearing rail grooves, the adjustment ability of fasteners is weak, and generally cannot be adjusted. Affected by factors such as poor geology, ballastless tracks are inevitably deformed, affecting train operation, speed restrictions at the least, and endangering driving safety at the worst. The concrete sleeper ballastless track fasteners currently used do not have large and rapid adjustment capabilities. It is urgent to adopt a new adjustable track structure to improve the adjustment ability of ballastless tracks. It is the only way to reduce the cost of high-speed railways and expand the scope of ballastless track laying. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a movable rail bearing groove sleeper to ensure that the position of the rail can be adjusted to a large extent without changing the installation interface of the rail fastener, thereby overcoming the technical difficulties of difficult adjustment of ballastless track and poor elasticity of ballastless track.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0005] The present invention provides a movable rail groove sleeper, comprising sleeper blocks which are arranged at intervals in the transverse direction and connected as a whole by a connecting device, wherein the sleeper block is a combined sleeper block consisting of a sleeper top block, a pad and a sleeper bottom block which are arranged in sequence from top to bottom, the sleeper bottom block having a sleeper sinking groove for accommodating the bottom of the sleeper top block, the sleeper top block and the sleeper bottom block being connected as a whole by an anchoring member, and the pad is pressed between the bottom surface of the sleeper sinking groove and the bottom surface of the sleeper top block; and adjustment blocks are embedded between the lateral sides of the pad and the side walls of the sleeper bottom block structure;

[0006] The sleeper top block is a solid or cavity structure, comprising a rail bearing plate, a shoulder and a seat plate which are condensed into one body, and a rail bearing groove is formed on the top surface of the rail bearing plate and between the shoulders on both sides; a downward convex seat plate ridge is arranged on the bottom surface of the seat plate;

[0007] The two lateral sides of the sleeper bottom block are upwardly protruding stoppers, a sleeper sinking groove is formed between the two side stoppers, and a bottom block groove corresponding to the convex edge of the pad is arranged on the bottom surface of the sleeper sinking groove.

[0008] The beneficial effects of the present invention are mainly reflected in the following aspects:

[0009] 1. The sleeper block adopts a combined sleeper block structure. By reasonably setting the number of pads and the thickness of the adjustment block of the sleeper top block, the rail position can be easily adjusted to a large extent. The adjustment amount is much larger than the adjustment amount of the existing fasteners. The rail position can be adjusted to a large extent while the fastener installation interface remains unchanged. It is also easy to maintain, which is of great significance for both emergency rescue and new line construction, and effectively overcomes the technical difficulties of difficult adjustment of ballastless track and poor elasticity of ballastless track.

[0010] Second, by selecting pads of different materials, the stiffness of the pads can be flexibly adjusted according to demand, thereby adjusting the overall stiffness of the track structure and realizing the track vibration reduction function.

[0011] 3. The sleeper top block, pad and sleeper bottom block are prefabricated in the factory, and the manufacturing quality with precise matching can be easily guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] This specification includes the following six drawings:

[0013] Figure 1 It is a schematic elevation view of a movable rail bearing groove sleeper of the present invention;

[0014] Figure 2 It is a schematic cross-sectional view of a sleeper body in a movable bearing rail groove sleeper of the present invention;

[0015] Figure 3 It is a schematic elevation view of a sleeper top block in a movable rail bearing groove sleeper of the present invention;

[0016] Figure 4 It is a plan view of a sleeper top block in a movable rail bearing groove sleeper of the present invention;

[0017] Figure 5 It is a cross-sectional view of a sleeper bottom block in a movable rail bearing groove sleeper of the present invention;

[0018] Figure 6 The present invention is a cross-sectional view of a pad in a movable rail groove sleeper.

[0019] The structures and corresponding marks in the figure are: sleeper bottom block 10, stopper 101, sleeper sinking groove 102, bottom block ridge 103, sleeper top block 11, rail bearing groove 111, rail bearing plate 112, stop shoulder 113, seat plate 114, seat plate ridge 115, anchor hole 116, pad 12, pad groove 121, pad ridge 122, adjustment block 13, fastener through hole 14, anchoring member 15, connecting device 20, anchor sleeve 31, anchor sleeve 32. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Reference Figure 1 The present invention discloses a movable rail groove sleeper, comprising sleeper blocks arranged at intervals in the transverse direction and connected as a whole by a connecting device 20. The sleeper block is a combined sleeper block consisting of a sleeper top block 11, a pad 12 and a sleeper bottom block 10 arranged in sequence from top to bottom. The sleeper bottom block 10 has a sleeper sinking groove 102 for accommodating the bottom of the sleeper top block 11. The sleeper top block 11 and the sleeper bottom block 10 are connected as a whole by an anchoring member 15, and the pad 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 pad 12 and the side walls of the sleeper bottom block 10 structure.

[0022] Reference Figure 1 and Figure 2 The present invention effectively overcomes the technical difficulties of difficult adjustment and poor elasticity of ballastless track. The sleeper block adopts a combined sleeper block composed of a sleeper top block 11, a pad 12 and a sleeper bottom block 10. By reasonably setting the number of pads 12 and the thickness of the adjustment block 13, the position of the rail can be easily adjusted to a large extent. The adjustment amount is much larger than the adjustment amount of the existing fasteners. It can ensure that the fastener installation interface remains unchanged while the position of the rail can be adjusted to a large extent. It is also easy to maintain, which is of great significance for both emergency rescue and new line construction. By selecting pads 12 of different materials, the stiffness of the pads 12 can be flexibly adjusted according to needs, thereby adjusting the overall stiffness of the track structure and realizing the track vibration reduction function. The sleeper top block 11, the pad 12 and the sleeper bottom block 10 are prefabricated in the factory, and the manufacturing quality of the matching precision is easily guaranteed.

[0023] Reference Figure 3 and Figure 4 The sleeper top block 11 is a solid or cavity structure, comprising a rail support plate 112, a shoulder 113 and a seat plate 114 which are condensed into one body, and a rail support groove 111 is formed on the top surface of the rail support plate 112 and between the shoulder 113 on both sides. To facilitate the positioning of the pad 12, a downward convex seat plate ridge 115 is provided on the bottom surface of the seat plate 114. The rail support plate 112 is provided with transversely spaced fastener installation holes 117 for fasteners to pass through the rail support plate 112 and the seat plate 114, and the seat plate 114 is provided with longitudinally and transversely spaced anchor holes 116 for anchor members 15 to pass through.

[0024] Reference Figure 6 The upper plate surface of the pad 12 is provided with a pad groove 121 corresponding to the seat plate ridge 115, and the lower plate surface is provided with a pad ridge 122. The pad 12 is provided in one layer, or at least two layers are stacked, and the upper pad ridge 122 is pressed into the lower pad groove 121. By changing the number or thickness of the pads 12, the vertical position of the sleeper top block 11 can be easily adjusted.

[0025] Reference Figure 5 The two lateral sides of the sleeper bottom block 10 are upwardly protruding stoppers 101, and the sleeper sinking groove 102 is formed between the two side stoppers 101. The bottom surface of the sleeper sinking groove 102 is provided with a bottom block groove 103 corresponding to the pad ridge 122. The sleeper bottom block 10 is embedded with a fastener sleeve 32 corresponding to each fastener installation hole 117 and an anchor sleeve 31 corresponding to the anchor hole 116. The sleeper top block 11 is made of steel, glass fiber reinforced plastic, fiber reinforced material, or prefabricated with reinforced concrete.

[0026] Reference Figure 1 The bottom of the sleeper bottom block 10 is sunk into the sleeper sinking groove 102, and 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 the pad 12 is pressed between the bottom surface of the sleeper sinking groove 102 and the bottom surface of the seat plate 114. The adjustment block 13 is embedded between the lateral sides of the pad 12 and the inner side wall of the stopper 101. By changing the thickness of the adjustment block 13, the lateral position of the sleeper top block 11 can be adjusted.

[0027] Reference Figure 1 and Figure 2 The connecting device 20 is a steel truss, an angle steel member, a steel bar member or a reinforced concrete structure. The anchoring member 15 is usually composed of bolts and washers. The bolts are passed through the washers, the anchor holes 116 on the sleeper top block 11 and the backing plate 5 from top to bottom, and screwed into the anchor sleeve 31 in the sleeper bottom block 10 to provide a tightening force, and the washers, the sleeper top block 11 and the backing plate 12 are pressed against the sleeper bottom block 10.

[0028] The above description is only to illustrate some principles of a movable rail groove sleeper of the present invention, and is not intended to limit the present invention to the specific structure and applicable scope shown and described. Therefore, all corresponding modifications and equivalents that may be used are within the scope of the patent applied for by the present invention.

Claims

1. A movable rail groove sleeper, comprising sleeper blocks arranged in a transverse interval and connected as a whole by a connecting device (20), characterized in that: The sleeper block is a combined sleeper block consisting of a sleeper top block (11), a pad (12) and a sleeper bottom block (10) arranged in sequence from top to bottom, the sleeper bottom block (10) having a sleeper sinking groove (102) for accommodating the bottom of the sleeper top block (11), the sleeper top block (11) and the sleeper bottom block (10) being connected as a whole via an anchoring member (15), and the pad (12) being pressed between the bottom surface of the sleeper sinking groove (102) and the bottom surface of the sleeper top block (11); and an adjustment block (13) being embedded between the lateral sides of the pad (12) and the structural side walls of the sleeper bottom block (10); The sleeper top block (11) is a solid or cavity structure, comprising a rail support plate (112), a shoulder (113) and a seat plate (114) which are condensed into one body; the rail support groove (111) is formed on the top surface of the rail support plate (112) and between the shoulder (113) on both sides; the bottom surface of the seat plate (114) is provided with a downwardly convex seat plate ridge (115); The two lateral sides of the sleeper bottom block (10) are upwardly protruding stoppers (101), a sleeper sinking groove (102) is formed between the two side stoppers (101), and a bottom block groove (103) corresponding to the pad ridge (122) is provided on the bottom surface of the sleeper sinking groove (102).

2. The movable rail groove sleeper according to claim 1, characterized in that: The rail support plate (112) is provided with fastener mounting holes (117) at intervals in the transverse direction for fasteners to pass through the seat plate (114) of the rail support plate (112), and the seat plate (114) is provided with anchor holes (116) at intervals in the longitudinal direction and transverse direction for anchor members (15) to pass through.

3. The movable rail groove sleeper according to claim 1, characterized in that: A pad groove (121) corresponding to the seat plate ridge (115) is provided on the upper plate surface of the pad (12), and a pad ridge (122) is provided on the lower plate surface.

4. The movable rail groove sleeper according to claim 1, characterized in that: The pads (12) are provided in one layer, or in at least two layers, and the ridges (122) of the upper pads are pressed into the grooves (121) of the lower pads.

5. The movable rail groove sleeper according to claim 1, characterized in that: A fastener sleeve (32) corresponding to the fastener installation hole (117) and an anchor sleeve (31) corresponding to the anchor hole (116) are embedded in the sleeper bottom block (10).

6. The movable rail groove sleeper according to claim 1, characterized in that: The sleeper top block (11) is made of steel, glass fiber reinforced plastic, fiber-reinforced material, or is prefabricated from reinforced concrete.

7. The movable rail groove sleeper according to claim 1, characterized in that: The connecting device (20) is a steel bar truss, an angle steel member, a steel bar member or a reinforced concrete structure.

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