Rail automatic lifting tool

Abstract

The utility model belongs to track lifting device technical field, concretely relates to a track automatic lifting frock, including fixed plate, lifting plate and lift rail cylinder, lifting plate and fixed plate slide connection are equipped with lifting mechanism between lifting plate and fixed plate, are driven lifting plate removal through lifting mechanism, be equipped with horizontal drive mechanism on lifting plate, the lift rail cylinder is equipped with two, two lift rail cylinders all are connected with horizontal drive mechanism, drive two lift rail cylinders opposite or opposite movement through horizontal mechanism, be equipped with the supporting plate on the cylinder body of two lift rail cylinders, two supporting plates are inserted between. Two lift rail cylinders are set up, two lift rail cylinders are located the both sides of the rail respectively, make the cylinder body and the supporting plate go up through the piston cylinder elongation of lift rail cylinder and lift the rail. In this lifting process, force is applied to the both sides of the rail, which can avoid the inclination of the single side force of the rail.

Description

Technical Field

[0001] This utility model belongs to the technical field of track lifting devices, specifically relating to an automatic track lifting fixture. Background Technology

[0002] Manually lifting rails to replace shims is a crucial task in railway maintenance. Rails are subjected to the constant pressure of trains and the natural environment, which can cause the shims beneath them to wear, deform, or become damaged, affecting track stability and train safety. To ensure the normal operation of the railway, workers need to regularly inspect and replace the shims.

[0003] During the operation, workers use specialized tools, such as hydraulic track jacks, to slowly lift the rails, creating sufficient space between them and the sleepers to facilitate the removal of old shims and the insertion of new ones. The entire process requires the coordinated efforts of multiple people and precise operation to ensure both the smooth lifting and lowering of the rails and the correct installation of the shims. While this work may seem simple, it plays a crucial role in the safe operation of the railway and is an indispensable part of railway maintenance.

[0004] Hydraulic track lifters apply force to one side of the rail during operation. Their design typically incorporates features like limit blocks to prevent tilting and ensure smooth track lifting. However, improper operation, such as excessive force on the lifting slab, can still cause the lifting cylinder to tilt, leading to rail tilting. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an automatic rail lifting fixture. In use, this fixture uses double rail lifting cylinders to lift the rail, preventing the rail from tilting due to uneven loading on one side.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An automatic track lifting fixture includes a fixed plate, a lifting plate, and a rail lifting cylinder. The lifting plate is slidably connected to the fixed plate, and a lifting mechanism is provided between the lifting plate and the fixed plate. The lifting mechanism drives the lifting plate to move.

[0008] The lifting plate is equipped with a horizontal drive mechanism, and there are two rail lifting cylinders. Both rail lifting cylinders are connected to the horizontal drive mechanism, and the horizontal mechanism drives the two rail lifting cylinders to move relative to each other or away from each other. Each of the two rail lifting cylinders is equipped with a support plate, and the two support plates are inserted into each other.

[0009] A support plate is fixedly connected to the end of the piston rod of the lifting cylinder.

[0010] One of the trays is fixedly connected to a plug, and the other tray has a corresponding slot.

[0011] The lifting mechanism is a lifting cylinder, and the two ends of the lifting cylinder are fixedly connected to the fixed plate and the lifting plate, respectively.

[0012] The pallet is rotatably connected to the cylinder body of the rail lifting cylinder, and a return spring is provided between the pallet and the rail lifting cylinder.

[0013] The reset spring is provided in two parts, and the reset spring is a tension spring.

[0014] The horizontal drive mechanism includes a base and a positive and negative lead screw. The base is fixedly connected to the lifting plate, and the positive and negative lead screw is rotatably connected to the base. A drive motor connected to the positive and negative lead screw is fixed on the base. Two sliders are provided on the positive and negative lead screw, and the two sliders are arranged opposite to each other. The cylinder bodies of the two rail lifting cylinders are fixedly connected to the corresponding sliders through connecting rods.

[0015] It also includes a support protection block, on which a push cylinder is fixedly connected, and the support protection block is fixedly connected to the piston rod of the push cylinder.

[0016] A limiting plate is fixedly connected to the fixed plate, and the limiting plate is provided with a limiting hole; the supporting protection block is provided with a limiting rod that cooperates with the limiting hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Two rail-lifting cylinders are installed, located on opposite sides of the rail. The extension of the piston in each cylinder raises the rail by lifting the cylinder body and the support plate. This lifting process applies force to both sides of the rail, preventing tilting due to unilateral force.

[0019] The two pallets are connected by a plug-in joint, forming a unified structure during rail lifting and preventing the ends of the pallets from being suspended in the air. The pallets are rotatably connected to the lifting cylinder, allowing for better contact with the rail during lifting.

[0020] The system is equipped with a support and protection block that can extend into the bottom of the rail after it is lifted, providing temporary protection. At the same time, the support and protection block is equipped with a limit rod that can be detached from the limit hole, which can be used to fix the rail when the rail lifting cylinder is not in use. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of one direction of the present invention;

[0022] Figure 2 This is a structural schematic diagram of another aspect of the present invention;

[0023] Figure 3 This is a structural schematic diagram of another aspect of this utility model;

[0024] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the usage state of this utility model in one direction;

[0026] Figure 6 This is a schematic diagram of the usage state of this utility model in another direction;

[0027] Figure 7 yes Figure 5 The front view of the structure shown;

[0028] Wherein: 1 is the fixed plate, 2 is the lifting plate, 3 is the rail lifting cylinder, 4 is the lifting mechanism, 5 is the horizontal drive mechanism, 50 is the base, 51 is the positive and negative lead screw, 52 is the drive motor, 53 is the slider, 54 is the connecting rod, 6 is the support plate, 7 is the support plate, 8 is the insertion block, 9 is the slot, 10 is the return spring, 11 is the support protection block, 12 is the pushing cylinder, 13 is the limiting plate, 130 is the limiting hole, 14 is the limiting rod, 15 is the rail, 16 is the railcar, and 17 is the rotating shaft. Detailed Implementation

[0029] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0030] like Figures 1-7 As shown, an automatic track lifting fixture includes a fixed plate 1, a lifting plate 2, and a track lifting cylinder 3. The lifting plate 2 is slidably connected to the fixed plate 1, and a lifting mechanism 4 is provided between the lifting plate 2 and the fixed plate 1. The lifting plate 2 is driven to move through the lifting mechanism 4. During installation, the fixed plate 1 is fixed to the track vehicle by bolts or other means, and the track vehicle moves along the track.

[0031] A horizontal drive mechanism 5 is provided on the lifting plate 2, and two rail lifting cylinders 3 are provided. Both rail lifting cylinders 3 are connected to the horizontal drive mechanism 5, and the horizontal mechanism drives the two rail lifting cylinders 3 to move relative to or away from each other. Each of the two rail lifting cylinders 3 is provided with a support plate 6, and the two support plates 6 are inserted into each other.

[0032] In use, first remove the bolts on the rail to be lifted; then, the lifting mechanism 4 drives the lifting plate 2 and the rail lifting cylinder 3 on it to move down until the support plate 6 is below the rail; then, the horizontal drive mechanism 5 drives the two rail lifting cylinders 3 to move relative to each other until the two support plates 6 are below the rail and are connected; finally, the piston rods of the two rail lifting cylinders 3 extend and contact the ground. As the piston rods continue to extend, the cylinder body and the support plate 6 move up, thereby lifting the rail.

[0033] Furthermore, in order to increase the contact area with the ground, a support plate 7 is fixedly connected to the end of the piston rod of the lifting cylinder 3.

[0034] Furthermore, various methods can be used to achieve the insertion; for example, a plug block 8 is fixedly connected to one of the trays 6, and a corresponding slot 9 is provided on the other tray 6.

[0035] Furthermore, the lifting mechanism 4 is a lifting cylinder, and the two ends of the lifting cylinder are fixedly connected to the fixed plate 1 and the lifting plate 2 respectively.

[0036] Furthermore, during the lifting process, the angle between the rail and the support plate 6 changes; to better conform to the rail, the support plate 6 is rotatably connected to the cylinder body of the rail lifting cylinder 3, and a return spring 10 is provided between the support plate 6 and the rail lifting cylinder 3. Initially, the support plate 6 is horizontal. When the rail is lifted, the support plate 6 rotates in contact with the rail, causing the return spring 10 to generate elastic potential energy. Specifically, a rotating shaft 17 is fixed on the support plate 6, and the rotating shaft 17 is rotatably connected to the cylinder body.

[0037] Furthermore, two return springs 10 are provided, and each return spring 10 is a tension spring. The two tension springs are located on both sides of the rotating shaft 17. The two ends of the return spring 10 are fixedly connected to the cylinder body and the support plate 6, respectively, or hinged to each other.

[0038] Furthermore, the horizontal drive mechanism 5 includes a base 50 and a positive and negative lead screw 51. The base 50 is fixedly connected to the lifting plate 2, and the positive and negative lead screw 51 is rotatably connected to the base 50. A drive motor 52 connected to the positive and negative lead screw 51 is fixedly mounted on the base 50. The housing of the drive motor 52 is fixedly connected to the base 50, and the output shaft of the drive motor 52 is fixedly connected to the positive and negative lead screw 51.

[0039] Two sliders 53 are mounted on the lead screw 51, and the two sliders 53 are arranged opposite each other. The cylinder bodies of the two lifting cylinders 3 are fixedly connected to the corresponding sliders 53 via connecting rods 54. The two ends of the connecting rods 54 are fixedly connected to the sliders 53 and the cylinder bodies, respectively. By rotating the output shaft of the drive motor 52 in both directions, the relative or opposite movements of the two sliders 53 and the lifting cylinders 3 can be achieved.

[0040] Furthermore, after the rail is lifted by the rail lifting cylinder 3, in order to prevent the rail from falling due to a malfunction of the rail lifting cylinder 3, a support protection block 11 is also provided. A push cylinder 12 is fixedly connected to the support plate 7. The cylinder body of the push cylinder 12 is fixedly connected to the support plate 7, and the support protection block 11 is fixedly connected to the piston rod of the push cylinder 12.

[0041] After the rail is lifted, the piston rod of the push cylinder 12 extends, causing the support protection block 11 to move under the rail. In this way, even if the rail lifting cylinder 3 malfunctions, the support protection block 11 can still support the rail, preventing the rail from falling and injuring the workers replacing the shims.

[0042] After the shims are replaced, the piston rod of the push cylinder 12 retracts, causing the support protection block 11 to move out from under the rail; the piston rod of the rail lifting cylinder 3 also retracts, and the rail moves down to its original position. Then, the horizontal moving mechanism drives the two rail lifting cylinders 3 to move in opposite directions until the support plate 6 moves out from under the rail. Finally, the piston of the lifting cylinder extends, causing the lifting plate 2 and the two rail lifting cylinders 3 to move upwards, avoiding interference with the normal movement of the railcar.

[0043] The aforementioned lifting cylinder 3, lifting cylinder, and pushing cylinder 12 can be any of an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder, with a hydraulic cylinder being preferred.

[0044] Furthermore, in order to prevent the piston cylinder of the lifting cylinder from being subjected to force for a long time, a limiting plate 13 is fixedly connected to the fixed plate, and the limiting plate 13 is provided with a limiting hole 130; the support protection block 11 is provided with a limiting rod 14 that cooperates with the limiting hole 130.

[0045] When the piston of the lifting cylinder extends, causing the lifting plate 2 and the two lifting rail cylinders 3 to move upward, the piston rod of the lifting cylinder extends, causing the limiting rod 14 on the support protection block 11 to engage with the limiting hole 130 on the limiting plate 13. That is, the position between the fixed plate 1 and the lifting plate 2 is fixed by the cooperation of the limiting rod 14 and the limiting hole 130, thereby preventing the piston of the lifting cylinder from being subjected to force for a long time.

[0046] The above description only describes the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments.

Claims

1. An automatic track lifting fixture, characterized in that: It includes a fixed plate (1), a lifting plate (2) and a rail lifting cylinder (3). The lifting plate (2) is slidably connected to the fixed plate (1). A lifting mechanism (4) is provided between the lifting plate (2) and the fixed plate (1). The lifting plate (2) is driven to move by the lifting mechanism (4). The lifting plate (2) is provided with a horizontal drive mechanism (5), and there are two lifting cylinders (3). Both lifting cylinders (3) are connected to the horizontal drive mechanism (5). The horizontal mechanism drives the two lifting cylinders (3) to move relative to each other or in opposite directions. Each of the two lifting cylinders (3) has a support plate (6) on its cylinder body, and the two support plates (6) are inserted into each other.

2. The automatic track lifting fixture according to claim 1, characterized in that: The piston rod end of the lifting cylinder (3) is fixedly connected to a support plate (7).

3. The automatic track lifting fixture according to claim 1, characterized in that: One of the trays (6) is fixedly connected to a plug (8), and the other tray (6) is provided with a corresponding slot (9).

4. The automatic track lifting fixture according to claim 1, characterized in that: The lifting mechanism (4) is a lifting cylinder, and the two ends of the lifting cylinder are fixedly connected to the fixed plate (1) and the lifting plate (2) respectively.

5. The automatic track lifting fixture according to claim 1, characterized in that: The pallet (6) is rotatably connected to the cylinder body of the lifting cylinder (3), and a return spring (10) is provided between the pallet (6) and the lifting cylinder (3).

6. The automatic track lifting fixture according to claim 5, characterized in that: Two return springs (10) are provided, and the return springs (10) are tension springs.

7. The automatic track lifting fixture according to claim 1, characterized in that: The horizontal drive mechanism (5) includes a base (50) and a positive and negative lead screw (51). The base (50) is fixedly connected to the lifting plate (2), and the positive and negative lead screw (51) is rotatably connected to the base (50). A drive motor (52) connected to the positive and negative lead screw (51) is fixed on the base (50). Two sliders (53) are provided on the positive and negative lead screw (51), and the two sliders (53) are arranged opposite to each other. The cylinder bodies of the two lifting cylinders (3) are fixedly connected to the corresponding sliders (53) through connecting rods (54).

8. The automatic track lifting fixture according to claim 2, characterized in that: It also includes a support protection block (11), on which a push cylinder (12) is fixedly connected, and the support protection block (11) is fixedly connected to the piston rod of the push cylinder (12).

9. The automatic track lifting fixture according to claim 8, characterized in that: A limiting plate (13) is fixedly connected to the fixed plate (1), and a limiting hole (130) is provided on the limiting plate (13); a limiting rod (14) that cooperates with the limiting hole (130) is provided on the support protection block (11).

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