Integral type flexible track fixing device

Abstract

The utility model provides an integral type flexible track fixing device, and belongs to the technical field of traveling tracks of hoisting and transporting machinery. The rail fastener solves the problem that an existing rail fastener is small in rail gauge adjusting range. The device comprises a steel base plate, the upper surface of the steel base plate is provided with two connecting areas, the space between the two connecting areas is used for containing a steel rail, each connecting area is provided with an upper pressing plate through a pressing bolt, the upper pressing plates abut against the side portion of the steel rail, and the upper pressing plates are provided with pressing parts pressed on the steel rail. Each connecting area is internally provided with an installation groove extending in the longitudinal direction perpendicular to the steel rail, and rod heads of the compression bolts are installed in the installation grooves. The mounting grooves extend in the longitudinal direction perpendicular to the steel rails, so that the adjustable range of the compression bolts is large, and the adjustment range of the gauge is large.

Description

Technical Field

[0001] The utility model belongs to the technical field of traveling rails for lifting and transporting machinery, and relates to an integral flexible rail fixing device. Background Art

[0002] The existing lifting and transportation machinery running rail fixing system generally uses bolted or welded fasteners for installation and fixing. The anchor bolt and the pressure plate bolt of the bolted fastener are the same bolt, and the bolt will bear all the vertical, horizontal and longitudinal impact forces of the gantry crane, causing the bolt to fall off and break easily, causing the gantry crane to derail. The welded fastener base and the lower steel pad are welded on site, and the welding part is relatively weak. The fastener base is very likely to break at the weld, causing failure.

[0003] To this end, a Chinese patent discloses a rail fastener [authorization announcement number is CN213173157U], including a pressure plate base, two upper pressure plates, a first bolt assembly and two second bolt assemblies; two protrusions are arranged on the pressure plate base, and the space between the two protrusions is used to place the rail; bolt holes are arranged on the pressure plate base, and the bolt holes are used to connect the pressure plate base with the concrete foundation by cooperating with the first bolt assembly; a stopper is arranged at the bottom of each upper pressure plate; the protrusion is provided with a cavity, and the cavity is used to set the second bolt assembly, and the second bolt assembly is used to be fixed in the cavity of the protrusion at one end and fixedly connected to the upper pressure plate at the other end, and the stopper is forced to fit the bottom of the rail and the side of the protrusion.

[0004] The above-mentioned rail fasteners fix the upper pressure plate on the protrusion by setting a protrusion on the pressure plate base. Although this solves the welding problem, the pressure plate base is in the form of a boss, and the track gauge adjustment range is small, basically below ±10mm, and the foundation pre-embedded requirements are extremely strict. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes an integral flexible track fixing device with a large track gauge adjustment range.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] An integral flexible rail fixing device comprises a steel plate, the upper surface of which has two connection areas, the space between the two connection areas is used to place the rails, an upper pressure plate is installed on each of the connection areas via a clamping bolt, the upper pressure plate is pressed against the side of the rail, and a clamping portion is provided on the upper pressure plate that is clamped on the rail, and an installation groove is provided in each of the connection areas and extends perpendicularly to the longitudinal direction of the rail, and the rod head of the clamping bolt is installed in the installation groove.

[0008] The clamping bolt can be moved along the length of the installation slot, thereby changing the position of the upper clamp and the rail, thereby adjusting the track gauge; the installation slot extends in a longitudinal direction perpendicular to the rail, so that the adjustable range of the clamping bolt is large and the adjustment range of the track gauge is large. After adjustment, the upper clamp is fixed in the current position by the clamping bolt and the locking nut.

[0009] In the above-mentioned integral flexible rail fixing device, both sides of the installation groove are provided with limit stops extending along the length direction of the installation groove, the two limit stops are arranged opposite to each other and the distance between them is greater than or equal to the outer diameter of the clamping bolt, and when the upper pressure plate is in a locked state, the rod head of the clamping bolt is pressed against the lower side of the limit stop.

[0010] In the above-mentioned integral flexible rail fixing device, the bottom of the installation groove is a closed structure, a clearance hole for the rod head of the clamping bolt to enter is provided at one end of the installation groove, and one end of the installation groove is connected to the clearance hole.

[0011] The bottom of the installation groove is a closed structure. After the steel pad is cast onto the track foundation, the clamping bolts can be freely removed and placed from above, making it convenient for large-scale adjustment of the track gauge.

[0012] In the above-mentioned integral flexible rail fixing device, a plurality of first racks distributed evenly are provided in the connection area, and a plurality of second racks distributed evenly are provided on the bottom surface of the upper pressure plate, and the second racks are meshed with the first racks.

[0013] In the above-mentioned integrated flexible rail fixing device, the first rack is arranged to be inclined relative to the longitudinal direction of the rail, the upper pressure plate is provided with a slot extending along the length direction of the first rack, and the clamping bolt is inserted into the slot.

[0014] The position of the upper pressure plate can be adjusted along the length of the slot, and the track gauge can be adjusted steplessly with the inclined first and second racks. The upper pressure plate and the steel pad adopt the meshing design of the first and second racks, which can greatly enhance the resistance to lateral force.

[0015] In the above-mentioned integral flexible track fixing device, the upper surface of the first rack is not higher than the upper surface of the steel plate. The first rack does not protrude from the upper surface of the steel plate, increasing the lateral displacement space of the rail and realizing a wide range of track gauge adjustment, which can reach more than ±50mm.

[0016] In the above-mentioned integral flexible track fixing device, the bottom surface of the steel plate is provided with a boss and a groove, which can enhance the connection strength between the steel plate and the track foundation.

[0017] In the above-mentioned integrated flexible track fixing device, the steel plate is provided with at least three non-collinear mounting holes, each of which is connected with a leveling bolt. The upper surface of the steel plate can be leveled by at least three non-collinear leveling bolts.

[0018] In the above-mentioned integral flexible rail fixing device, the steel plate is provided with at least two connection holes for installing anchor bolts, and the connection strength between the steel plate and the rail foundation is enhanced by the anchor bolts.

[0019] In the above-mentioned integrated flexible rail fixing device, a center line mark is provided in the space between the two connection areas, which is beneficial to the control of the rail installation accuracy.

[0020] The installation process of this integral flexible track fixing device is as follows:

[0021] The steel plate is placed on the foundation through the leveling bolts, and the anchor bolts are simultaneously placed in the connecting holes and the reserved holes of the foundation. After adjusting the gauge, elevation and other technical indicators according to the gantry crane specifications, the steel plate is cast and fixed on the foundation for the second time using special rail mortar, and then the pressure plate is installed to fix the rails.

[0022] The steel pad and upper pressure plate 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 and anti-corrosion technology, without on-site welding process. The track-specific mastic uses non-shrinkage grouting material, which can be cement-based grouting material, epoxy resin grouting material, or bridge bearing grouting material.

[0023] Compared with the prior art, the integrated flexible track fixing device has the following advantages:

[0024] The mounting groove extends laterally along the rail, which allows a large adjustment range for the track gauge. At the same time, the position of the upper pressure plate can be adjusted along the length of the groove. Combined with the inclined first rack and second rack, the track gauge can be adjusted steplessly. The upper pressure plate and the steel pad adopt a first rack and second rack meshing design, which can greatly enhance the resistance to lateral force, improve the operating efficiency of the crane and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an integral flexible track fixing device.

[0026] Figure 2 It is a top view of the integral flexible track fixture.

[0027] Figure 3 It is a top view of the steel pad provided by the utility model.

[0028] Figure 4 It is a bottom view of the steel pad provided by the utility model.

[0029] Figure 5 is a side view of an integral flexible track fixture.

[0030] Figure 6It is a structural schematic diagram of the upper pressing plate provided by the utility model.

[0031] In the figure, 1. steel pad; 11. mounting groove; 12. limit stop edge; 13. clearance hole; 14. first rack; 15. boss; 16. groove; 17. mounting hole; 18. connecting hole; 19. center line mark; 2. steel rail; 3. clamping bolt; 4. locking nut; 5. upper pressure plate; 51. clamping part; 52. slot; 6. rubber pad. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figure 1-3 The integral flexible track fixing device shown in the figure comprises a steel plate 1 for supporting a steel rail 2. The upper surface of the steel plate 1 has two connection areas. The space between the two connection areas is used to place the steel rail 2. An upper pressing plate 5 is installed on each connection area through a clamping bolt 3. The upper pressing plate 5 is pressed against the side of the steel rail 2. Figure 6 As shown, the upper pressing plate 5 is provided with a pressing portion 51 pressed against the rail 2, and each connecting area is provided with a mounting groove 11 extending vertically to the longitudinal direction of the rail 2, and the rod head of the clamping bolt 3 is installed in the mounting groove 11. Figure 5 As shown, a rubber pad 6 is provided between the steel pad 1 and the rail 2 .

[0034] The clamping bolt 3 can be moved along the length direction of the installation groove 11, thereby changing the position of the upper pressure block and the rail 2, so as to adjust the track gauge; the installation groove 11 extends in a longitudinal direction perpendicular to the rail 2, so that the adjustable range of the clamping bolt 3 is large, and the adjustment range of the track gauge is large. After being adjusted in place, the upper pressure plate 5 is fixed at the current position by the clamping bolt 3 and the locking nut 4.

[0035] like Figure 1-3 As shown, the upper parts of both sides of the mounting groove 11 are provided with limit stop edges 12 extending along the length direction of the mounting groove 11, and the two limit stop edges 12 located in the same mounting groove 11 are arranged opposite to each other and the distance between them is greater than or equal to the outer diameter of the clamping bolt 3, but smaller than the outer diameter of the rod head of the clamping bolt 3. When the upper pressure plate 5 is in a locked state, the rod head of the clamping bolt 3 is pressed against the lower side of the limit stop edge 12.

[0036] In this embodiment, the bottom of the installation groove 11 is a closed structure. Figure 3 As shown, a clearance hole 13 for the rod head of the clamping bolt 3 to enter is provided at one end of the mounting groove 11 away from the rail 2, and the end of the mounting groove 11 away from the rail 2 is connected to the clearance hole 13. After the steel pad 1 is cast on the foundation of the track, the clamping bolt 3 can be freely taken in and out from above, which is convenient for adjusting the track gauge in a wide range.

[0037] like Figure 1-3 As shown, a plurality of first racks 14 distributed evenly are provided in the connection area, and a plurality of second racks distributed evenly are provided on the bottom surface of the upper pressing plate 5 , and the second racks mesh with the first racks 14 .

[0038] Specifically, Figure 1-3 As shown, the first rack 14 is arranged to be inclined relative to the longitudinal direction of the rail 2, as shown in FIG. Figure 6 As shown, the upper pressing plate 5 is provided with a slot 52 extending along the length direction of the first rack 14, and the clamping bolt 3 is inserted into the slot 52. The position of the upper pressing plate 5 can be adjusted along the length direction of the slot 52, and the track gauge can be adjusted steplessly by cooperating with the inclined first rack 14 and the second rack. The upper pressing plate 5 and the steel pad 1 adopt the meshing design of the first rack 14 and the second rack, which can greatly enhance the resistance to lateral force.

[0039] In this embodiment, the upper surface of the first rack 14 is not higher than the upper surface of the steel plate 1. The first rack 14 does not protrude from the upper surface of the steel plate 1, increasing the lateral displacement space of the rail 2 and achieving a wide range of track gauge adjustment, which can reach more than ±50mm.

[0040] like Figure 4 As shown, the bottom surface of the steel pad 1 is provided with a boss 15 and a groove 16. There are two bosses 15 respectively located below the connection area, and the groove 16 is located between the two bosses 15. The boss 15 and the groove 16 can enhance the connection strength between the steel pad 1 and the foundation.

[0041] like Figure 3 and Figure 4 As shown, the steel pad 1 is provided with four mounting holes 17 respectively located at the four corners of the steel pad 1 , and each mounting hole 17 is threadedly connected with a leveling bolt, and the upper surface of the steel pad 1 can be leveled by the leveling bolt.

[0042] like Figure 3 and Figure 4 As shown, the steel plate 1 is provided with two connection holes 18 for installing anchor bolts, and the connection strength between the steel plate 1 and the rail 2 foundation is enhanced by the anchor bolts.

[0043] like Figure 3 and Figure 4 As shown, a centerline mark 19 is provided in the space between the two connection areas, which is beneficial to the control of the installation accuracy of the rail 2. In this embodiment, the centerline mark 19 is a circular hole located in the middle of the space between the two connection areas and a groove 16 located on the side of the steel plate 1, and a straight line passing through the two grooves 16 and the circular hole extends longitudinally along the rail 2.

[0044] The installation process of this integral flexible track fixing device is as follows:

[0045] The steel plate 1 is placed on the foundation through the leveling bolts, and the anchor bolts are simultaneously placed in the connecting holes 18 and the reserved holes of the foundation. After adjusting the gauge, elevation and other technical indicators according to the gantry crane specifications, the steel plate 1 is cast and fixed on the foundation for the second time using special rail mortar, and then the pressure plate 5 is installed to fix the rail 2.

[0046] The steel plate 1 and the upper plate 5 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 mortar uses non-shrinkage grouting material, which can be cement-based grouting material, epoxy resin grouting material, or bridge bearing grouting material.

[0047] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An integrated flexible track fixing device, characterized in that: It comprises a steel pad (1), the upper surface of which has two connection areas, the space between the two connection areas is used to place a steel rail (2), each of the connection areas is mounted with an upper pressure plate (5) via a clamping bolt (3), the upper pressure plate (5) is pressed against the side of the steel rail (2), and the upper pressure plate (5) is provided with a clamping portion (51) clamped against the steel rail (2), each of the connection areas is provided with a mounting groove (11) extending in a direction perpendicular to the longitudinal direction of the steel rail (2), and the rod head of the clamping bolt (3) is mounted in the mounting groove (11).

2. The integrated flexible track fixing device according to claim 1, characterized in that: Both sides of the installation groove (11) are provided with limit stop edges (12) extending along the length direction of the installation groove (11), and the two limit stop edges (12) are arranged opposite to each other and the distance between them is greater than or equal to the outer diameter of the clamping bolt (3), and when the upper pressure plate (5) is in a locked state, the rod head of the clamping bolt (3) is pressed against the lower side of the limit stop edge (12).

3. The integrated flexible track fixing device according to claim 2, characterized in that: The bottom of the installation groove (11) is a closed structure, and a clearance hole (13) for the rod head of the clamping bolt (3) to enter is provided at one end of the installation groove (11), and one end of the installation groove (11) is connected to the clearance hole (13).

4. The integrated flexible track fixing device according to claim 1, characterized in that: A plurality of first racks (14) distributed at equal intervals are provided in the connection area, and a plurality of second racks distributed at equal intervals are provided on the bottom surface of the upper pressure plate (5), wherein the second racks mesh with the first racks (14).

5. The integrated flexible track fixing device according to claim 4, characterized in that: The first rack (14) is arranged to be inclined in the longitudinal direction of the rail (2), the upper pressure plate (5) is provided with a slot (52) extending along the length direction of the first rack (14), and the clamping bolt (3) is inserted into the slot (52).

6. The integrated flexible track fixing device according to claim 4 or 5, characterized in that: The upper surface of the first rack (14) is not higher than the upper surface of the steel backing plate (1).

7. The integrated flexible track fixing device according to claim 1, characterized in that: The bottom surface of the steel backing plate (1) is provided with a boss (15) and a groove (16).

8. The integrated flexible track fixing device according to claim 1, characterized in that: At least three non-collinear mounting holes (17) are provided on the steel backing plate (1), and each mounting hole (17) is connected to a leveling bolt.

9. The integrated flexible track fixing device according to claim 1, characterized in that: The steel base plate (1) is provided with at least two connection holes (18) for installing anchor bolts.

10. The integrated flexible track fixing device according to claim 1, characterized in that: A center line mark (19) is provided in the space between the two connection areas.

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