A precision alignment device for replacing railway turnouts

Abstract

This utility model relates to the field of railway operation and maintenance, and discloses a precise alignment device for replacing railway turnouts, comprising: a pulley bracket; a first pulley group and a second pulley group respectively installed on the pulley bracket, the first pulley group being located below the second pulley group, the first pulley group and the second pulley group protruding from the bottom and top of the pulley bracket respectively, the axial directions of the first pulley group and the second pulley group being perpendicular to each other; and a slide rail located below the first pulley group, the first pulley group being in rolling connection with the upper surface of the slide rail. Through the cooperation of the first pulley group and the second pulley group, the turnout can simultaneously achieve lateral movement during longitudinal translation, improving construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of railway operation and maintenance, and in particular to a precise alignment device for replacing railway turnouts. Background Technology

[0002] In the field of railway operation and maintenance, turnout sections require periodic complete replacement due to the large impact force of trains and rapid wear. To adapt to the increasing traffic density and the ever-shrinking "maintenance window" time, developing a device that can complete the overall longitudinal and transverse displacement of turnouts in the narrow space of existing lines has become a key direction of railway mechanization.

[0003] A utility model patent, CN220433307U, entitled "Railway Turnout Translation and Transportation Device," proposes a longitudinal translation system consisting of pulley blocks and slide rails. The pulley blocks are rigidly connected to the turnout sleeper support plates via pulley brackets, enabling the overall lateral movement of the turnout on a pre-laid 12.5m slide rail. The pulleys have an 80mm wide working surface and a 20mm flange for anti-derailment. The slide rails are leveled with I-shaped short wooden sleepers, and rail ends are equipped with stops to prevent slippage. This solution can laterally move a single turnout weighing up to 39t to its designated position within 2.5 hours without the need for a large crane, significantly reducing interference with the site and train operation. However, since the slide rail can only be laid along a predetermined longitudinal trajectory, the pulley block and the slide rail are a pure rolling pair, lacking lateral freedom. When the site is restricted by terrain, signal poles or contact wires and lateral adjustments must be made simultaneously, the slide rail can only be removed and re-laid, resulting in interruption of the process and extension of the operation time. Moreover, repeated disassembly and reassembly of the slide rail will reduce the positioning accuracy and increase the labor intensity, which cannot meet the intensive construction requirements of "one-time track laying, longitudinal and lateral positioning".

[0004] Therefore, developing a precise alignment device for railway turnout replacement that can achieve both longitudinal translation and simultaneous lateral movement on the same set of equipment has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The present invention aims to provide a precise alignment device for replacing railway turnouts, so as to overcome the shortcomings mentioned above.

[0006] In order to achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A precision alignment device for replacing railway turnouts, comprising:

[0008] Pulley bracket;

[0009] A first pulley group and a second pulley group are respectively mounted on the pulley bracket, with the first pulley group located below the second pulley group. The first and second pulley groups protrude from the bottom and top of the pulley bracket, respectively, and the axial directions of the first and second pulley groups are perpendicular to each other.

[0010] The slide rail is located below the first pulley group, and the first pulley group is in rolling connection with the upper surface of the slide rail.

[0011] Furthermore, the pulley bracket includes:

[0012] Two opposing upper side plates, with a second pulley assembly rotatably connected between the two upper side plates and protruding from the top edges of the two upper side plates; and

[0013] Several upper connecting rods are fixedly connected between the two upper side plates.

[0014] Furthermore, the pulley bracket also includes a first connecting plate fixedly connected between the bottom edges of the two upper side plates.

[0015] Furthermore, the pulley bracket also includes:

[0016] Two opposing lower side plates are positioned below the upper side plate and are arranged perpendicularly. A first pulley assembly is rotatably connected between the two lower side plates and protrudes from the bottom edges of the two lower side plates.

[0017] Several lower connecting rods are fixedly connected between the two lower side plates.

[0018] Furthermore, the pulley bracket also includes a second connecting plate fixedly connected between the top edges of the two lower side plates, and the second connecting plate is fixedly connected to the first connecting plate.

[0019] Furthermore, the bottom of the upper side plate is provided with a first slot, and the first connecting plate is fixedly connected to the top edge of the two first slots;

[0020] The top of the lower side plate is provided with a second slot, and the second connecting plate is fixedly connected to the bottom edge of the two second slots. The first slot and the second slot engage with each other.

[0021] Furthermore, the first pulley group consists of multiple flangeless pulleys located at the same horizontal level.

[0022] Furthermore, the slide rail includes:

[0023] First support plate; and

[0024] The upper surface of the first support plate is provided with two parallel baffles, and the first pulley group is located between the two baffles.

[0025] Furthermore, the slide rail also includes handles installed at both ends of the first support plate.

[0026] Furthermore, it also includes a second support plate, which is located above the second pulley group and the two are rolledly connected. The second pulley group consists of multiple double-rimmed wheels at the same horizontal height, and the second support plate is located between the two rims of the double-rimmed wheels.

[0027] Compared with the prior art, this utility model has at least the following advantages:

[0028] This invention, through the cooperation of the first pulley group and the second pulley group, enables the turnout to move laterally simultaneously during longitudinal translation, thereby improving construction efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of the precision alignment device for replacing railway turnouts according to this utility model.

[0031] Figure 2 This is an exploded view of the pulley bracket, the first pulley group, and the second pulley group of this utility model.

[0032] Reference numerals: 1. Pulley bracket; 2. First pulley block; 3. Second pulley block; 4. Slide rail; 5. Second support plate; 11. Upper side plate; 12. First slot; 13. Upper connecting rod; 14. First central connecting plate; 15. Lower side plate; 16. Second slot; 17. Lower connecting rod; 18. Second central connecting plate; 41. First support plate; 42. Stop bar; 43. Handle. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Reference Figure 1-2 This utility model provides a precise alignment device for replacing railway turnouts, including a pulley bracket 1, a first pulley group 2 and a second pulley group 3 respectively mounted on the pulley bracket 1, and a slide rail 4 located below the first pulley group 2. The first pulley group 2 is located below the second pulley group 3, and the first pulley group 2 and the second pulley group 3 protrude from the bottom and top of the pulley bracket 1 respectively. The axial direction of the first pulley group 2 is perpendicular to the axial direction of the second pulley group 3. The first pulley group 2 is rollably connected to the upper surface of the slide rail 4. The first pulley group 2 can move laterally, while the second pulley group 3 can slide longitudinally.

[0036] In a preferred embodiment, the pulley bracket 1 includes two opposing upper side plates 11 and a plurality of upper connecting rods 13 fixedly connected between the two upper side plates 11, preferably three upper connecting rods 13. A second pulley assembly 3 is rotatably connected between the two upper side plates 11 and protrudes from the top edge of the two upper side plates 11. Furthermore, the pulley bracket 1 also includes a first central connecting plate 14 fixedly connected between the bottom edges of the two upper side plates 11.

[0037] Furthermore, the pulley bracket 1 also includes two opposing lower side plates 15 and a plurality of lower connecting rods 17 fixedly connected between the two lower side plates 15, preferably three lower connecting rods 17. The lower side plates 15 are located below the upper side plates 11 and are arranged perpendicularly. The first pulley assembly 2 is rotatably connected between the two lower side plates 15 and protrudes from the bottom edges of the two lower side plates 15. In addition, the pulley bracket 1 also includes a second central connecting plate 18 fixedly connected between the top edges of the two lower side plates 15. The second central connecting plate 18 is fixedly connected to the first central connecting plate 14, which can be fixed by welding.

[0038] The above structure enables the connection process between the first pulley block 2 and the second pulley block 3.

[0039] Optionally, the bottom of the upper side plate 11 is provided with a first slot 12, and the first connecting plate 14 is fixedly connected to the top edge of the two first slots 12; the top of the lower side plate 15 is provided with a second slot 16, and the second connecting plate 18 is fixedly connected to the bottom edge of the two second slots 16, and the first slots 12 and the second slots 16 engage with each other.

[0040] In a preferred embodiment, the first pulley group 2 consists of multiple flangeless wheels located at the same horizontal height. Specifically, a first rotating shaft is coaxially fixedly connected to both sides of the flangeless wheel. The lower side plate 15 is provided with a downward-opening lower U-shaped groove, and the first rotating shaft is installed in the lower U-shaped groove. A lower baffle is fixedly connected to the outer side wall of the lower side plate 15, and the lower baffle cooperates with the lower U-shaped groove to fix the position of the first rotating shaft. Of course, the first rotating shaft can also be rotatably connected to the lower side plate through components such as bearings, that is, the outer side wall of the first rotating shaft is fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is fixedly connected to the lower side plate 15.

[0041] The slide rail 4 includes a first support plate 41, and two parallel baffles 42 are provided on the upper surface of the first support plate 41. The first pulley group 2 is located between the two baffles 42. Furthermore, the slide rail 4 also includes handles 43 installed at both ends of the first support plate 41. The handles 43 on the slide rail 4 facilitate handling and installation.

[0042] In a preferred embodiment, the precise alignment device further includes a second support plate 5, which is located above the second pulley group 3 and the two are rolled together. The second pulley group 3 consists of multiple double-rimmed wheels at the same horizontal height, and the second support plate 5 is located between the two rims of the double-rimmed wheels. Specifically, a second rotating shaft is coaxially and fixedly connected to both sides of the double-rimmed wheels. The upper side plate 11 is provided with an upward-opening upper U-shaped groove, and the second rotating shaft is installed in the upper U-shaped groove. An upper baffle is fixedly connected to the outer side wall of the upper side plate 11, and the upper baffle cooperates with the upper U-shaped groove to fix the position of the second rotating shaft. Of course, the second rotating shaft can also be rotatably connected to the lower side plate through components such as bearings, that is, the outer side wall of the second rotating shaft is fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is fixedly connected to the upper side plate 11.

[0043] The coordination of the first pulley block 2 and the second pulley block 3 enables the turnout to move in two vertical directions, improving construction efficiency. The first pulley block 2 uses flangeless wheels and has a stop bar 42 on the slide rail 4 to ensure that the first pulley block 2 rotates along the length of the stop bar 42. The second pulley block 3 uses double-flanged wheels, and the second support plate 5 slides on the second pulley block 3 to prevent the second support plate 5 from detaching from the second pulley block 3 in the lateral direction, thereby ensuring the stability and safety of the turnout movement.

[0044] Working principle of this utility model:

[0045] The precise alignment device of the present invention realizes the longitudinal and lateral movement of the turnout through the cooperation of the first pulley group 2 and the second pulley group 3.

[0046] In use, hydraulic jacks are evenly distributed and installed on the turnout, with the movable ends of the hydraulic jacks able to move downwards. By extending the hydraulic jacks, the turnout can be lifted off the ground. At this time, wooden blocks need to be installed under the movable ends of the hydraulic jacks. When the turnout is at a certain height above the ground, the precision alignment device of this invention can be installed below the turnout. The number of devices used is determined by the length of the turnout, and they are evenly spaced along the length of the turnout. It should be ensured that the first support plate 41 is along the length of the turnout, and the second support plate 5 is along the width of the turnout. Then, by extending and retracting the hydraulic jacks, the turnout is pressed above the second support plate 5. When longitudinal movement of the turnout is required, a traction device such as an excavator is used to push the turnout, causing the second support plate 5 to roll on the second pulley block 3. When lateral movement of the turnout is required, the turnout is pushed, causing the first pulley block 2 to roll on the slide rail 4. Since the axial direction of the first pulley block 2 is perpendicular to the axial direction of the second pulley block 3, movement of the turnout in two perpendicular directions can be achieved.

[0047] It should be noted that when the turnout moves longitudinally, the second support plate 5 should not detach from the second pulley block 3. When the movement distance is large, an intermittent movement method should be adopted. That is, after moving a certain distance, the hydraulic jack is extended to separate the second support plate 5 from the turnout. Then, the position of the precision alignment device of this utility model is changed, and the hydraulic jack is retracted to make the turnout abut against the second support plate 5. The longitudinal translation is performed again, and the above operation is repeated to achieve a longer longitudinal translation. Similarly, when the turnout moves laterally, the first pulley block 2 should always be located above the slide rail 4. When the movement distance is large, an intermittent movement method should be adopted. That is, after moving a certain distance, the hydraulic jack is extended to separate the second support plate 5 from the turnout. Then, the position of the slide rail 4 is changed, and the hydraulic jack is retracted to make the turnout abut against the second support plate 5. The lateral translation is performed again, and the above operation is repeated to achieve a longer lateral translation.

[0048] It is easy to understand that the number and arrangement of the precision alignment devices of this invention should be determined according to the weight and size of the turnout during use. Typically, for turnouts in the same location, two sets of precision alignment devices of this invention should be installed in the width direction.

[0049] When the turnout needs to be moved, a traction device (such as a hand-operated hoist, winch, excavator, etc.) is used to pull the turnout, causing the second pulley block 3 to roll on the second support plate 5, thus achieving longitudinal movement of the turnout. When the turnout needs to be moved laterally, a traction device is used to pull the turnout, causing the first pulley block 2 to roll on the slide rail 4, thus achieving lateral movement of the turnout. During the turnout movement, a designated person should observe the movement of the turnout to ensure that the movement is smooth and safe.

[0050] Once the turnout has been moved to the designated position, use lifting equipment to secure it to the foundation. Remove the second support plate 5 and remove the pulley bracket 1 from the slide rail 4. Remove the slide rail 4, clean the device, and store it in a dry, well-ventilated place. Then, remove the hydraulic jacks.

[0051] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A precision alignment device for replacing railway turnouts, characterized in that, include: Pulley bracket (1); A first pulley group (2) and a second pulley group (3) are respectively installed on the pulley bracket (1). The first pulley group (2) is located below the second pulley group (3). The first pulley group (2) and the second pulley group (3) protrude from the bottom and top of the pulley bracket (1) respectively. The axial direction of the first pulley group (2) and the axial direction of the second pulley group (3) are perpendicular to each other. as well as The slide rail (4) is located below the first pulley group (2), and the first pulley group (2) is in rolling connection with the upper surface of the slide rail (4).

2. The precise alignment device for replacing railway turnouts according to claim 1, characterized in that, The pulley bracket (1) includes: Two opposing upper side plates (11), with the second pulley assembly (3) rotatably connected between the two upper side plates (11) and protruding from the top edge of the two upper side plates (11); and Several upper connecting rods (13) are fixedly connected between the two upper side plates (11).

3. The precise alignment device for replacing railway turnouts according to claim 2, characterized in that, The pulley bracket (1) also includes a first connecting plate (14) fixedly connected between the bottom edges of the two upper side plates (11).

4. The precise alignment device for replacing railway turnouts according to claim 3, characterized in that, The pulley bracket (1) also includes: Two opposing lower side plates (15) are located below the upper side plate (11) and are arranged perpendicularly. A first pulley assembly (2) is rotatably connected between the two lower side plates (15) and protrudes from the bottom edge of the two lower side plates (15); and Several lower connecting rods (17) are fixedly connected between the two lower side plates (15).

5. The precise alignment device for replacing railway turnouts according to claim 4, characterized in that, The pulley bracket (1) further includes a second connecting plate (18) fixedly connected between the top edges of the two lower side plates (15), and the second connecting plate (18) is fixedly connected to the first connecting plate (14).

6. The precise alignment device for replacing railway turnouts according to claim 5, characterized in that, The bottom of the upper side plate (11) is provided with a first slot (12), and the first connecting plate (14) is fixedly connected to the top edge of the two first slots (12); The top of the lower side plate (15) is provided with a second slot (16), the second connecting plate (18) is fixedly connected to the bottom edge of the two second slots (16), and the first slot (12) and the second slot (16) are engaged.

7. The precise alignment device for replacing railway turnouts according to claim 5, characterized in that, The first pulley group (2) consists of multiple flangeless pulleys located at the same horizontal level.

8. The precise alignment device for replacing railway turnouts according to claim 6, characterized in that, The slide rail (4) includes: First support plate (41); and The upper surface of the first support plate (41) is provided with two parallel baffles (42), and the first pulley group (2) is located between the two baffles (42).

9. The precise alignment device for replacing railway turnouts according to claim 8, characterized in that, The slide rail (4) also includes handles (43) installed at both ends of the first support plate (41).

10. The precise alignment device for replacing railway turnouts according to any one of claims 1 to 9, characterized in that, It also includes a second support plate (5), which is located above the second pulley group (3) and the two are connected by rolling. The second pulley group (3) consists of multiple double-rimmed wheels at the same horizontal height, and the second support plate (5) is located between the two rims of the double-rimmed wheels.

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