Integral flexible track fixing device and track system

Abstract

The utility model relates to the technical field of rail transportation, in particular to an integral type flexible rail fixing device and a rail system, the device comprises a base plate, at least one through hole is arranged in the middle area of the base plate, and the through hole penetrates through the base plate from top to bottom. According to the integral type flexible track fixing device, the through hole is formed in the middle area of the base cushion plate, when the track fixing device is anchored through daub, air at the bottom of the base cushion plate can be exhausted through the through hole, and the phenomenon that the daub is hollow due to air accumulation is avoided; the track fixing device is simple in structure, convenient to use and good in effect.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to an integral flexible rail fixing device and a rail system. Background Art

[0002] The existing lifting and transportation machinery running rail fixing system generally uses bolted or welded fasteners for installation and fixing, specifically, the rail is fixed to the lower steel pad by fasteners. In some existing installation and fixing methods, the anchor bolt and the pressure plate bolt of the bolted fastener are the same bolt, and the bolt bears all the vertical, horizontal and longitudinal impact forces of the gantry crane. The bolt is very easy to fall off and break, causing the gantry crane to derail; the welded fastener solves the bolt force problem, but the fastener base and the lower steel pad are welded on site, and the welding part becomes a relatively weak link. The base is easy to break at the weld, causing failure.

[0003] Regardless of whether it is a bolted fastener or a welded fastener, the steel plate at the bottom needs to be anchored on the foundation. Considering the load-bearing and smoothness of the rail, the steel plate is required to be leveled on the foundation, and then the anchor bolts of the steel plate are simultaneously placed in the reserved holes of the foundation. After adjusting the gauge, elevation and other technical indicators according to the specifications, the steel plate is cast and fixed on the foundation for the second time using special rail cement.

[0004] However, when the rail-specific mastic is filling the reserved holes in the foundation and the bottom of the steel pad, the air in the filling part will be excluded. The bottom of the steel pad is a whole plate, which is not conducive to the discharge of air, causing the mastic to become hollow and the steel pad cannot be stably anchored. Utility Model Content

[0005] The purpose of the utility model is to provide an integral flexible track fixing device and a track system to address the problem that the bottom of the steel pad used in the existing lifting and transportation machinery running track fixing system in the prior art is a whole plate, which is not conducive to the discharge of air, causing hollowing of the anchoring mortar and the inability of the steel pad to be stably anchored.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] In a first aspect, the utility model provides an integral flexible rail fixing device, including a base pad, wherein a middle area of ​​the base pad is provided with at least one through hole, and the through hole penetrates the base pad from top to bottom.

[0008] By adopting the integrated flexible track fixing device described in the utility model, the through hole is set in the middle area of ​​the base pad. When the track fixing device is anchored by cement, the air at the bottom of the base pad can be discharged through the through hole, avoiding the hollowing phenomenon of air accumulation in the cement, so that the track fixing device can be stably anchored. The device has a simple structure, is easy to use and has a good effect.

[0009] As a preferred technical solution of the utility model, a collecting groove is provided on the bottom surface of the base pad, and the bottom opening of the through hole is provided in the collecting groove.

[0010] With this structure, by arranging the collecting groove on the bottom surface of the base pad, the air at the bottom of the base pad during cement pouring can be collected in the collecting groove and then discharged through the through hole.

[0011] As a preferred technical solution of the utility model, protrusions are respectively provided on the top of both sides of the base pad, a mounting portion is provided between the two protrusions, the top opening of the through hole is provided in the mounting portion, and the mounting portion is used to set the rail.

[0012] As a further preferred technical solution of the utility model, the bottom of the base pad corresponding to the protrusion is a groove, the groove is provided with a mounting hole, the protrusion is provided with a pressure plate, the pressure plate is provided with a strip hole, the pressure plate is connected to the protrusion through a clamping bolt, the clamping bolt is a T-head bolt, the head of the T-head bolt passes through the strip hole and the mounting hole and is buried in the groove, the tail of the T-head bolt is threadedly connected to the clamping nut, and the pressure head of the pressure plate extends above the mounting portion.

[0013] With this structure, the clamping bolt is detachably connected to the boss through the strip hole and the mounting hole, and the head of the clamping bolt is buried in the groove, thereby realizing a removable and replaceable design of the clamping bolt, which is convenient for subsequent replacement.

[0014] As a further preferred technical solution of the present invention, an elastic strip is provided on the side of the pressure head facing the mounting portion.

[0015] By adopting this structure, the elastic pressure strip can be pressed onto the steel rail to achieve a flexible connection between the track fixing device and the steel rail.

[0016] As a preferred technical solution of the utility model, anchor holes are respectively provided on both sides of the base pad, anchor bolts are provided in the anchor holes, and the anchor bolts are threadedly connected with anchor nuts.

[0017] As a preferred technical solution of the utility model, threaded holes are respectively provided on both sides of the base pad, and at least three threaded holes are provided in total, and a leveling bolt is threadedly connected in each of the threaded holes.

[0018] As a further preferred technical solution of the utility model, the front and rear ends of both sides of the base pad are respectively provided with corners, and each of the corners is provided with the threaded hole.

[0019] As a preferred technical solution of the utility model, empty grooves are respectively provided at the front and rear ends of the base pad, and an elastic pad is provided on the base pad, and a bottom protrusion of the elastic pad fits in the empty groove.

[0020] In a second aspect, the utility model further provides a track system, comprising a steel rail and an integral flexible track fixing device as described in any one of the above items, wherein the base pad is connected to the steel rail.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0022] 1. The utility model discloses an integrated flexible track fixing device, by providing the through hole in the middle area of ​​the base pad, when the track fixing device is anchored by cement, the air at the bottom of the base pad can be discharged through the through hole, thereby avoiding the hollowing phenomenon of the cement due to air accumulation, so that the track fixing device can be stably anchored. The device has a simple structure, is easy to use, and has a good effect.

[0023] 2. The utility model preferably adopts an integrated flexible track fixing device, by arranging the collecting groove on the bottom surface of the base pad, so that the air at the bottom of the base pad during the cement pouring is concentrated into the collecting groove and then discharged through the through hole;

[0024] 3. The utility model preferably adopts an integral flexible rail fixing device, wherein the clamping bolt is detachably connected to the protrusion through the strip hole and the mounting hole, and the head of the clamping bolt is buried in the groove, thereby realizing a removable and replaceable design of the clamping bolt, which is convenient for subsequent replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the use of the integral flexible track fixing device;

[0026] Figure 2 The structure diagram of the integral flexible track fixing device Figure 1 ;

[0027] Figure 3 The structure diagram of the integral flexible track fixing device Figure 2 .

[0028] Markings in the figure: 1-base pad, 11-protrusion, 12-corner, 13-mounting part, 14-through hole, 15-collecting groove, 16-groove, 17-anchor hole, 18-mounting hole, 19-empty slot, 2-anchor bolt, 21-anchor nut, 3-leveling bolt, 4-pressure plate, 41-pressure head, 42-elastic pressure strip, 43-bar hole, 5-clamping bolt, 51-clamping nut, 6-elastic pad, 7-rail. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0030] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0032] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0033] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0034] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0035] In the related art, whether it is a bolt-type fastener or a welded fastener, the steel pad at the bottom needs to be anchored to the foundation, and considering the load-bearing and smoothness of the rail, the steel pad is required to be leveled on the foundation, and then the anchor bolts of the steel pad are simultaneously placed in the reserved holes of the foundation. After adjusting the gauge, elevation and other technical indicators according to the specifications, the steel pad is cast and fixed to the foundation for the second time using track-specific cement. However, when filling the reserved holes in the foundation and the bottom of the steel pad, the track-specific cement will exclude the air in the filling part. The bottom of the steel pad is a whole plate, which is not conducive to the discharge of air, causing the cement to become hollow, and the steel pad cannot be stably anchored. For this reason, the technical solution of the present application was produced, and the following is combined with Figures 1 to 3 To elaborate.

[0036] Example 1

[0037] like Figures 1 to 3 As shown, an integrated flexible track fixing device described in the utility model includes a base pad 1.

[0038] The top of both sides of the base pad 1 are respectively provided with protrusions 11, and between the two protrusions 11 is a mounting portion 13, and the mounting portion 13 is used to set the rail 7. The protrusions 11 are provided with a pressing plate 4, and the pressing plate 4 is used to press the rail 7, so that the track fixing device can fix the rail 7.

[0039] In a specific embodiment, the bottom of the base pad 1 corresponding to the protrusion 11 is a groove 16, and the groove 16 is provided with a mounting hole 18, and the pressure plate 4 is provided with a strip hole 43. The pressure plate 4 is connected to the protrusion 11 through a clamping bolt 5, and the clamping bolt 5 is a T-head bolt. The head of the T-head bolt passes through the strip hole 43 and the mounting hole 18 and is buried in the groove 16. The tail of the T-head bolt is threadedly connected to the clamping nut 51, and the pressure head 41 of the pressure plate 4 extends above the mounting portion 13. The pressure head 41 is provided with an elastic strip 42 on the side facing the mounting portion 13, which can be crimped onto the rail 7 through the elastic strip 42 to achieve a flexible connection between the track fixing device and the rail 7.

[0040] Each of the pressure plates 4 is connected with two of the clamping bolts 5, which has stronger vertical bearing capacity and lateral force resistance, maintains appropriate longitudinal resistance performance, and is suitable for fixing the running rails of large-tonnage gantry cranes. The strip holes 43 are arranged at an angle of 45° relative to the installation axis of the rail 7, which facilitates the position adjustment of the pressure plate 4 and provides a certain lateral resistance.

[0041] In a specific embodiment, anchor holes 17 are respectively provided on both sides of the base pad 1, and anchor bolts 2 are provided in the anchor holes 17, and the anchor bolts 2 are threadedly connected with anchor nuts 21. Among them, the two anchor bolts 2 are arranged diagonally on the base pad 1, and each anchor hole 17 is arranged in parallel with the boss 11, that is, in this embodiment, the anchor bolts 2 fix the base pad 1, and the clamping bolts 5 fix the pressure plate 4. The two bolts are designed separately and are not integrated, which can effectively avoid the problem of easy falling off and breaking of the bolts.

[0042] In a specific embodiment, threaded holes are respectively provided on both sides of the base pad 1, and at least three threaded holes are provided in total, and each threaded hole is threadedly connected with a leveling bolt 3. Corners 12 are respectively provided at the front and rear ends of both sides of the base pad 1, and each corner 12 is provided with the threaded hole.

[0043] In a specific embodiment, the front and rear ends of the base pad 1 are respectively provided with empty grooves 19 , and the base pad 1 is provided with an elastic pad 6 , the bottom protrusion of the elastic pad 6 fits in the empty groove 19 , and the elastic pad 6 supports the rail 7 .

[0044] In a specific embodiment, the bottom surface of the base pad 1 is provided with a collecting groove 15, and the middle area of ​​the base pad 1 is provided with at least one through hole 14, the through hole 14 passes through the base pad 1 from top to bottom, the bottom opening of the through hole 14 is provided in the collecting groove 15, and the top opening of the through hole 14 is provided in the mounting portion 13. Figure 3 As shown, the collecting groove 15 is arranged in the middle of the bottom surface of the base pad 1 , and one of the through holes 14 is arranged in the middle position of the collecting groove 15 .

[0045] The base plate 1 and the pressure plate 4 are made of cast steel, forged steel, ductile iron and other materials, using precision casting or forging technology, hot-dip galvanizing, electroplating, anti-rust paint and other surface treatment anti-corrosion processes, without on-site welding process. The track-specific glue uses non-shrinkage grouting material, which can be cement-based grouting material, epoxy resin grouting material, or bridge bearing grouting material. The elastic pad 6 and the elastic pressure strip 42 are made of rubber.

[0046] During installation, the base pad 1 is leveled on the foundation by screwing the leveling bolt 3, and the anchor bolt 2 is simultaneously placed in the reserved hole of the foundation. After adjusting the gauge, elevation and other technical indicators according to the specifications of the gantry crane, the base pad 1 is cast and fixed on the running rail foundation for the second time using special rail cement. During the cement pouring process, the air on the bottom surface of the base pad 1 is discharged through the collecting groove 15 and the through hole 14, so that the casting of the base pad 1 is stable. Finally, the elastic pad 6, the clamping bolt 5 and the pressure plate 4 are installed to fix the rail 7.

[0047] The integrated flexible track fixing device described in this embodiment is provided with the collecting groove 15 and the through hole 14 on the base pad 1. When the track fixing device is anchored by the cement, the air at the bottom of the base pad 1 is concentrated in the collecting groove 15 and then discharged through the through hole 14, so as to avoid the hollowing phenomenon caused by the accumulation of air in the cement, so that the track fixing device can be stably anchored; the clamping bolt 5 is detachably connected to the boss 11 through the strip hole 43 and the mounting hole 18, and the head of the clamping bolt 5 is buried in the groove 16, so as to realize the removable and replaceable design of the clamping bolt 5, which is convenient for subsequent replacement; the base pad 1 is an integral casting or forging process part with high structural strength; the vertical static stiffness range of the device is suitable for the slow travel of the crane, the smoothness is good, the impact force of the gantry crane is better absorbed, the operation efficiency can be effectively improved, and the service life can be extended; the longitudinal resistance is small, so that the longitudinal part of the rail can be extended and contracted, the temperature stress of the rail can be released in time, and the rail can be prevented from breaking; the structure is simple, the use is convenient, and the effect is good.

[0048] Example 2

[0049] like Figures 1 to 3 As shown, a track system described in the utility model includes a steel rail 7 and an integral flexible track fixing device as described in Example 1, and the base pad 1 is connected to the steel rail 7.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated flexible track fixing device, characterized in that: It comprises a base pad (1), wherein at least one through hole (14) is provided in a middle region of the base pad (1), and the through hole (14) passes through the base pad (1) from top to bottom.

2. The integrated flexible track fixing device according to claim 1, characterized in that: The bottom surface of the base pad (1) is provided with a collecting groove (15), and the bottom opening of the through hole (14) is arranged in the collecting groove (15).

3. The integrated flexible track fixing device according to claim 1, characterized in that: The tops of both sides of the base pad (1) are respectively provided with protrusions (11), a mounting portion (13) is provided between the two protrusions (11), and the top opening of the through hole (14) is provided in the mounting portion (13).

4. The integrated flexible track fixing device according to claim 3, characterized in that: The bottom of the base pad (1) corresponding to the protrusion (11) is a groove (16), and a mounting hole (18) is provided on the groove (16). The protrusion (11) is provided with a pressure plate (4), and a strip hole (43) is provided on the pressure plate (4). The pressure plate (4) is connected to the protrusion (11) through a clamping bolt (5). The clamping bolt (5) is a T-head bolt, and the head of the T-head bolt passes through the strip hole (43) and the mounting hole (18) and is buried in the groove (16). The tail of the T-head bolt is threadedly connected to the clamping nut (51), and the pressure head (41) of the pressure plate (4) extends above the mounting portion (13).

5. The integrated flexible track fixing device according to claim 4, characterized in that: An elastic pressure strip (42) is provided on one side of the pressure head (41) facing the mounting portion (13).

6. The integrated flexible track fixing device according to claim 1, characterized in that: Anchor holes (17) are respectively provided on both sides of the base pad (1), foundation bolts (2) are provided in the anchor holes (17), and the foundation bolts (2) are threadedly connected with anchor nuts (21).

7. The integrated flexible track fixing device according to claim 1, characterized in that: Threaded holes are respectively provided on both sides of the base pad (1), with at least three threaded holes being provided in total, and a leveling bolt (3) is threadedly connected in each threaded hole.

8. The integrated flexible track fixing device according to claim 7, characterized in that: Corner portions (12) are respectively provided at the front and rear ends of both sides of the base pad (1), and each of the corner portions (12) is provided with the threaded hole.

9. The integrated flexible track fixing device according to any one of claims 1 to 8, characterized in that: Empty grooves (19) are respectively provided at the front and rear ends of the base pad (1), and an elastic pad (6) is provided on the base pad (1), and a bottom protrusion of the elastic pad (6) fits in the empty groove (19).

10. A track system, characterized in that: It comprises a steel rail (7) and an integral flexible track fixing device as claimed in any one of claims 1 to 9, wherein the base pad (1) is connected to the steel rail (7).

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