A wheel guiding and transition device for the track at the dock expansion joint structure

Abstract

The present invention discloses a wheel guiding and transition device for a track at a dock expansion joint structure. The first base and the second base are fixed on a concrete foundation by anchor bolts. A expansion joint distance equal to that between the concrete foundations is left between the first base and the second base, which can be adjusted according to the use site. The connecting track is inserted into the first base and the second base by an insertion structure. A semi-circular groove is left at the middle position of the first base for installing the shaft of the conical switch. The switch shaft seal assembled on the conical switch is locked by countersunk screws to achieve shaft connection. The upper plane of the conical switch is designed with a small-angle slope for smoothness. The tail end of the conical switch is designed in a conical shape and placed on the second base to avoid the collision between the wheel flange and the connecting track or the conical switch. The first base and the conical switch remain stationary, and the second base is driven by the concrete foundation where it is located to displace. The present invention eliminates the adverse effects of the outside on the track and ensures transportation safety.

Description

Technical Field

[0001] The present invention relates to the technical field of wheel guiding transitions, and particularly to a wheel guiding transition device for a track at a dock expansion joint structure. Background Technique

[0002] The dock structure forms include gravity type, high-pile type, and sheet-pile type. It is mainly determined by comprehensively considering usage requirements, natural conditions, and construction conditions. Gravity dock: It maintains stability by the self-weight of the building and the weight of the filling within the structure range. It has good structural integrity, is durable, and is easy to repair after damage. There are integral masonry type and precast assembled type, which are suitable for better foundations; High-pile dock: It consists of foundation piles and the superstructure. The lower part of the pile is driven into the soil, and the upper part is above the water surface. The superstructure includes beam-slab type, beamless large-slab type, frame type, and caisson type, etc. The high-pile dock is a permeable structure, and waves and water currents can pass under the dock plane, without wave reflection, without affecting flood discharge, and can reduce sedimentation, which is suitable for soft soil foundations. In recent years, long piles and large-span structures have been widely used, and gradually large prestressed concrete pipe columns or steel pipe columns have been used to replace piles with smaller cross-sections, forming a pipe column dock; Sheet-pile dock: It consists of a sheet-pile wall and an anchorage facility, and withstands the ground use load and the lateral pressure generated by the backfill soil by means of the sheet-pile and the anchorage facility. The sheet-pile dock has a simple structure and fast construction speed. It can be used for all foundations except for particularly hard or overly soft foundations, but its structural integrity and durability are poor.

[0003] In large ports, shipyards, or docks, the concrete foundations of the dock wall and the finger dock or the ship lift platform are poured independently, and there is an expansion joint between them to prevent thermal expansion and contraction. When a large ship berths at the finger dock, it will cause an instantaneous lateral impact on the finger dock, resulting in simultaneous lateral and vertical displacements between the dock wall and the finger dock or between the dock wall and the ship lift platform. The laid heavy-duty track needs to pass above the expansion joint, and transverse and longitudinal displacements or settlements will occur due to the different concrete foundations on both sides of the expansion joint, thus affecting the smooth operation of the track, and even causing the track to bend, arch, break, etc., seriously affecting transportation safety. Summary of the Invention

[0004] The purpose of the present invention is to provide a wheel guiding transition device for a track at a dock expansion joint structure to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A wheel guiding transition device for the track at the expansion joint structure of a wharf, comprising a first base and a second base. The first base and the second base are fixed on a concrete foundation by anchor bolts. There is a gap equal to the expansion joint distance between the concrete foundations between the first base and the second base, and the expansion joint distance can be adjusted according to the actual use site. The connecting track is inserted into the first base and the second base by a socket structure. A semi-circular groove is provided at the middle position of the first base for installing the shaft of the tapered turnout. The turnout shaft seal assembled on the tapered turnout is locked by countersunk head screws, so that a shaft connection is achieved between the tapered turnout and the first base. The upper plane of the tapered turnout is designed with a small-angle slope for smoothness. The tail end of the tapered turnout is designed in a tapered shape and placed on the second base to avoid the collision between the wheel flange and the connecting track or the tapered turnout caused by the different straightness between the tapered turnout and the connecting track. The first base and the tapered turnout remain stationary, and the second base is driven by the concrete foundation where it is located to displace;

[0007] When the concrete foundation where the second base is located undergoes a lateral displacement, there is a moving space between the tail end of the tapered turnout and the upper and lower ends of the second base in the lateral direction, and no interference will occur;

[0008] If relative settlement or uplift occurs in the concrete foundation below the first base and the second base, the tail end of the tapered turnout freely lifts or drops according to the second base. The head end of the tapered turnout is fixed on the first base through the turnout shaft seal, and the head end of the tapered turnout will not change, which is used to guide the wheels.

[0009] Preferably, the distance H1 between the tail end of the tapered turnout and the upper end of the second base in the lateral direction is not less than 25 mm.

[0010] Preferably, the distance H2 between the tail end of the tapered turnout and the upper end of the second base in the lateral direction is not less than 12.5 mm, and the distance H3 between the tail end of the tapered turnout and the lower end of the second base in the lateral direction is not less than 12.5 mm, ensuring that the upper wheels are guided by the tapered turnout to the connecting track, so as to achieve a smooth transition.

[0011] Preferably, the distance H4 between the tail end of the tapered turnout and the lower end of the second base in the lateral direction is not less than 25 mm.

[0012] Preferably, if relative settlement occurs in the concrete foundation below the first base and the second base, the height L1 by which the tail end of the tapered turnout lifts according to the second base is not less than 15 mm, guiding the upper wheels to pass through the track.

[0013] Preferably, if relative uplift occurs in the concrete foundation below the first base and the second base, the height L2 by which the tail end of the tapered turnout sinks according to the second base is not less than 15 mm, guiding the upper wheels to pass through the track.

[0014] Preferably, when the foundations below base one and base two produce longitudinal displacement, that is, they come closer or separate due to thermal expansion and contraction, the head end of the tapered turnout is axially connected to base one and fixed, the distance W1 between the tail end of the tapered turnout and base two is not less than 30 mm, and the distance W2 between base one and base two is not less than 30 mm, so that the tail end of the tapered turnout will not warp up, and the upper surface of the tapered turnout will not be higher than the plane of the connecting track, thereby ensuring the normal operation of the track.

[0015] Preferably, base one, base two and tapered turnout are made of high-strength materials and are processed by precision turning and milling. At the same time, the hardness and toughness of the materials are improved through heat treatment process. They have high strength and hardness and will not deform under the heavy pressure of ship transfer equipment or lifting equipment of 10,000 tons or above. The anchor bolts are equipped with gaskets and nuts.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] The arranged connecting rail can be widely used for heavy-duty rails within the standard range of ports, docks, logistics transportation, and automated warehousing. When gravity is concentrated on the concrete foundation at the base one, the tapered turnout will not be squeezed out of the groove by pressure. The connecting rail adopts a socket-type structure to insert the base one and the base two. The base one and the base two are perfectly connected, which increases stability and achieves error-free transition. When the wheels pass by, the force from the wheel groove surface is gradually transferred to the wheel edge, during which the load stress is seamlessly transitioned, so that the wheels of transportation equipment such as transfer carts can smoothly pass through the entire transition device at the dock expansion joint structure. Since the upper plane of the tapered turnout adopts a small-angle slope smooth design, it can naturally guide the wheels to pass through the track without crushing or gnawing the track, thereby solving various losses and safety hazards caused by various deformations or fractures of the carrying track. The structure of the invention is compact, easy to assemble and convenient to disassemble, and can connect the two ends of the track within a very short distance and achieve a smooth transition. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 is an exploded view of the assembly of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the track system of the present invention installed on two independent concrete foundations;

[0021] Figure 3 is a schematic diagram of displacement when lateral displacement occurs in embodiment 1 of the present invention;

[0022] Figure 4It is a displacement schematic diagram when lateral displacement occurs in Embodiment 2 of the present invention;

[0023] Figure 5 It is a displacement schematic diagram when lateral displacement occurs in Embodiment 3 of the present invention;

[0024] Figure 6 It is a displacement schematic diagram when relative settlement displacement occurs in the present invention;

[0025] Figure 7 It is a schematic diagram of the present invention when no relative settlement or uplift occurs;

[0026] Figure 8 It is a displacement schematic diagram when relative uplift displacement occurs in the present invention;

[0027] Figure 9 It is a schematic diagram of the expansion joint left in the present invention;

[0028] Figure 10 It is a schematic diagram of the approach of the concrete foundation of the present invention due to the influence of thermal expansion and contraction;

[0029] Figure 11 It is an assembly schematic diagram of the present invention;

[0030] Figure 12 It is a sectional view taken along the direction A;

[0031] Figure 13 It is a sectional view taken along the direction B;

[0032] Figure 14 It is a sectional view taken along the direction C.

[0033] In the figure: 1, the first base; 2, the second base; 3, the connecting track; 4, the anchor bolt; 5, the gasket; 6, the nut; 7, the tapered turnout; 8, the turnout shaft seal; 9, the countersunk head screw. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1-14 , the present invention provides the following technical solutions:

[0036] A wheel guiding and transition device for the track at the dock expansion joint structure, comprising a base one 1 and a base two 2. The base one 1 and the base two 2 are fixed on the concrete foundation by anchor bolts 4. There is a expansion joint distance equal to that between the concrete foundations between the base one 1 and the base two 2, and the expansion joint distance can be adjusted according to the use site. The connecting track 3 is inserted into the base one 1 and the base two 2 by a socket structure. A semi-circular groove is left at the middle position of the base one 1 for installing the shaft of the tapered switch 7. The switch shaft seal 8 assembled on the tapered switch 7 is locked by countersunk head screws 9, so that a shaft connection is realized between the tapered switch 7 and the base one 1. The upper plane of the tapered switch 7 is designed with a small-angle slope smoothly. The tail end of the tapered switch 7 is designed in a tapered shape and placed on the base two 2 to avoid the collision between the wheel flange and the connecting track 3 or the tapered switch 7 caused by the different straightness between the tapered switch 7 and the connecting track 3. The base one 1 and the tapered switch 7 remain stationary, and the base two 2 is driven by the concrete foundation where it is located to displace.

[0037] When the foundation under the base one 1 and the foundation under the base two 2 are relatively stable and there is no displacement, the wheels above the track run smoothly.

[0038] When the concrete foundation where the base two 2 is located undergoes a lateral displacement, there are moving spaces between the tail end of the tapered switch 7 and the upper and lower ends of the base two 2 in the horizontal direction, and no interference will occur.

[0039] If relative settlement or uplift occurs in the concrete foundation under the base one 1 and the base two 2, the tail end of the tapered switch 7 freely lifts or falls according to the base two 2. The head end of the tapered switch 7 is fixed on the base one 1 through the switch shaft seal 8, and the head end of the tapered switch 7 will not change, which is used to guide the wheels.

[0040] As a specific implementation manner of the present invention, please refer to Figure 3 , the distance H1 between the tail end of the tapered switch 7 and the upper end of the base two 2 in the horizontal direction is not less than 25 mm.

[0041] As a specific implementation manner of the present invention, please refer to Figure 4 , the distance H2 between the tail end of the tapered switch 7 and the upper end of the base two 2 in the horizontal direction is not less than 12.5 mm, and the distance H3 between the tail end of the tapered switch 7 and the lower end of the base two 2 in the horizontal direction is not less than 12.5 mm, ensuring that the wheels above are guided by the tapered switch 7 to the connecting track 3, so as to achieve a smooth transition.

[0042] As a specific implementation manner of the present invention, please refer to Figure 5 , the distance H4 between the tail end of the tapered switch 7 and the lower end of the base two 2 in the horizontal direction is not less than 25 mm.

[0043] As a specific implementation manner of the present invention, please refer toFigure 6 If the concrete foundations below the base 1 and the base 2 2 produce relative settlement, the tail end of the tapered turnout 7 is lifted by a height L1 of not less than 15 mm according to the base 2 2 to guide the upper wheels to pass through the track.

[0044] As a specific implementation of the present invention, please refer to Figure 8 If the concrete foundations below the base 1 and the base 2 2 are relatively raised, the tail end of the tapered turnout 7 sinks to a height L2 of not less than 15 mm according to the base 2 2, guiding the upper wheels to pass through the track;

[0045] As a specific implementation of the present invention, please refer to Figures 9-10 When the foundations below the base 1 and the base 2 produce longitudinal displacement, that is, they come together or separate due to thermal expansion and contraction, the head end of the tapered turnout 7 is axially connected to the base 1 and fixed, and the distance W1 between the tail end of the tapered turnout 7 and the base 2 is not less than 30 mm, and the distance W2 between the base 1 and the base 2 is not less than 30 mm, so that the tail end of the tapered turnout 7 will not be lifted up, and the upper surface of the tapered turnout 7 is not higher than the plane of the connecting track 3, ensuring the normal operation of the track, and preventing the tail end of the tapered turnout 7 from sliding out of the base 2 2 and bulging, which will not affect the smooth operation of the wheels above the track.

[0046] As a specific embodiment of the present invention, the base 1, the base 2 and the tapered turnout 7 are made of high-strength materials and are processed by precision turning and milling. At the same time, the hardness and toughness of the materials are improved through heat treatment process. They have high strength and high hardness and will not be deformed under the heavy pressure of ship transfer equipment or lifting equipment above 10,000 tons. The anchor bolts 4 are equipped with gaskets 5 and nuts 6 for easy assembly and replacement.

[0047] In summary, the present invention is a wheel guide transition device for the track at the expansion joint structure of the dock. The tapered turnout will not be squeezed out of the groove by pressure. The connecting track is inserted into the base one and the base two with a socket-type structure. The base one and the base two are perfectly connected, which increases stability and enables error-free transition. When the wheel passes, the force from the wheel groove surface is gradually transferred to the wheel edge, during which the load stress is seamlessly transitioned, so that the wheels of transportation equipment such as transfer carts can smoothly pass through the entire transition device at the expansion joint structure of the dock. Since the upper plane of the tapered turnout adopts a smooth slope design with a small angle, it can naturally guide the wheel to pass through the track without crushing or gnawing the track. The present invention is easy to assemble and disassemble, can connect the two end tracks within a very short distance and achieve a smooth transition, and can be widely used in heavy-duty tracks within the standard range of ports, docks, logistics transportation, and automated warehousing.

[0048] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0049] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wheel guiding and transition device for a track at a dock expansion joint structure, characterized in that: It includes base one (1) and base two (2). The base one (1) and the base two (2) are fixed on the concrete foundation by anchor bolts (4). A expansion joint distance equal to that between the concrete foundations is left between the base one (1) and the base two (2). The expansion joint distance can be adjusted according to the use site. The connecting track (3) is inserted into the base one (1) and the base two (2) by a socket structure. A semi-circular groove is left at the middle position of the base one (1) for installing the shaft of the tapered turnout (7). The turnout shaft seal (8) assembled on the tapered turnout (7) is locked by countersunk head screws (9), so that a shaft connection is achieved between the tapered turnout (7) and the base one (1). The upper plane of the tapered turnout (7) is designed with a small-angle slope for smoothness. The tail end of the tapered turnout (7) is designed in a tapered shape and placed on the base two (2) to avoid the collision between the wheel flange and the connecting track (3) or the tapered turnout (7) caused by the difference in straightness between the tapered turnout (7) and the connecting track (3). The base one (1) and the tapered turnout (7) remain stationary, and the base two (2) is driven to displace by the concrete foundation where it is located; When the concrete foundation where the base two (2) is located undergoes a lateral displacement, a moving space is left between the tail end of the tapered turnout (7) and the upper and lower ends of the base two (2) in the lateral direction, and no interference will occur; If relative settlement or uplift occurs in the concrete foundation below the base one (1) and the base two (2), the tail end of the tapered turnout (7) freely lifts or drops according to the base two (2). The head end of the tapered turnout (7) is fixed on the base one (1) through the turnout shaft seal (8), and the head end of the tapered turnout (7) will not change and is used to guide the wheels.

2. The wheel guiding and transition device for the track at the dock expansion joint structure according to claim 1, wherein: The distance H1 between the tail end of the tapered turnout (7) and the upper end of the base two (2) in the lateral direction is not less than 25 mm.

3. The wheel guiding and transition device for the track at the dock expansion joint structure according to claim 2, characterized in that: The distance H2 between the tail end of the tapered turnout (7) and the upper end of the base two (2) in the lateral direction is not less than 12.5 mm, and the distance H3 between the tail end of the tapered turnout (7) and the lower end of the base two (2) in the lateral direction is not less than 12.5 mm, ensuring that the upper wheels are guided by the tapered turnout (7) to the connecting track (3) for a smooth transition.

4. The wheel guiding and transition device for the track at the dock expansion joint structure according to claim 2, characterized in that: The distance H4 between the tail end of the tapered turnout (7) and the lower end of the base two (2) in the lateral direction is not less than 25 mm.

5. The wheel guiding and transition device for the track at the expansion joint structure of the wharf according to claim 1, characterized in that: If relative settlement occurs in the concrete foundation below the base one (1) and the base two (2), the height L1 by which the tail end of the tapered turnout (7) lifts according to the base two (2) is not less than 15 mm to guide the upper wheels to pass through the track.

6. The wheel guiding and transition device for the track at the dock expansion joint structure according to claim 1, characterized in that: If relative uplift occurs in the concrete foundation below the base one (1) and the base two (2), the height L2 by which the tail end of the tapered turnout (7) sinks according to the base two (2) is not less than 15 mm to guide the upper wheels to pass through the track.

7. The wheel guiding and transition device for the track at the dock expansion joint structure according to claim 1, characterized in that: When the foundations below the base one (1) and the base two (2) produce longitudinal displacement, that is, they come together or separate due to thermal expansion and contraction, the head end of the tapered turnout (7) is axially connected to the base one (1) and fixed, the distance W1 between the tail end of the tapered turnout (7) and the base two (2) is not less than 30 mm, and the distance W2 between the base one (1) and the base two (2) is not less than 30 mm, so that the tail end of the tapered turnout (7) will not be lifted, and the upper surface of the tapered turnout (7) is not higher than the plane of the connecting track (3), thereby ensuring the normal operation of the track.

8. A wheel guiding transition device for a track at a dock expansion joint structure according to any one of claims 1-7, characterized in that: The base 1 (1), the base 2 (2) and the tapered turnout (7) are made of high-strength materials and are processed by precision turning and milling. At the same time, the hardness and toughness of the materials are improved through a heat treatment process. They have high strength and hardness and will not deform under the heavy pressure of ship transfer equipment or lifting equipment of 10,000 tons or more. The anchor bolts (4) are equipped with washers (5) and nuts (6).

Images