Railway rail pad peeling equipment

The railway rail pad peeling device automatically distinguishes pads from weld protrusions, enabling safe and efficient peeling by adjusting the claw's position, addressing the inefficiencies of manual intervention and potential damage in existing systems.

JP7750915B2Active Publication Date: 2025-10-07DAIICHI KENSETABU INDS
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Patent Information

Application Number
JP2023173776
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-10-05
Publication Date
2025-10-07
Estimated Expiration
2043-10-05

AI Technical Summary

Technical Problem

Existing railway rail pad peeling devices face challenges in automatically distinguishing between cushioning pads and weld protrusions, leading to potential claw damage and manual intervention, which is inefficient for mass production.

Method used

A railway rail pad peeling device with a pad detection abutment section that moves ahead of the claw, allowing the claw to automatically adjust its position to avoid weld protrusions and ensure pads are peeled off without contact, using a pad detection interlocking contact and separation mechanism.

Benefits of technology

The device enables automatic and sequential peeling of pads while avoiding weld protrusions, reducing manual effort and ensuring the claw's safety, thus enhancing efficiency and practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an excellent railway rail pad peeling device capable of automatically peeling and separating pads 3 on the back surface of a railway rail 1 in sequence by a moving claw part 4 and automatically avoiding a welded protrusion 8 on the back surface which may be damaged when it comes into contact.SOLUTION: A railway rail pad peeling device is configured such that, when a pad detection abutment portion 6 climbs over and descends over a welded protrusion 8 which is shorter than the length of the pad 3, a claw portion 4 moves once closer to the back surface of the railway rail 1 but then moves away to automatically avoid the claw portion 4 moving and coming into contact, and, when the pad detection abutment portion 6 climbs over and descends over the pad 3, the claw portion 4 moves in abutment to peel the pad 3 from an end portion, and the claw portion 4 moves away to peel and separate the pad 3.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to a railway rail pad removal device that sequentially removes a large number of cushioning pads (e.g., thin sheets made of synthetic resin) remaining attached to the back surface of a railway rail to be removed by moving a removing claw along the back surface while abutting or in close proximity to the pads. [Background technology]

[0002] For example, when replacing an old rail with a new one, a rail exchange machine is used to remove the rail that has been lifted off the track and pushed aside, while a new rail is pulled in and laid from the side. However, many cushioning pads are often left attached to the underside of the lifted rail, and these are removed one by one using a rail pad removal device, which collects and discards them.

[0003] Conventionally, this railway rail pad peeling device has been configured, for example, to have a main body (moving part) that moves along a lifted railway rail, and a pad peeling part consisting of a claw part that moves along the back surface to peel off the cushioning pad remaining attached to the back surface of the railway rail; for example, this claw part is held in a biased state away from the back surface of the railway rail, and the pad is peeled off by manually or automatically moving the claw part toward the back surface against this bias and making it come into contact with the back surface, or by moving the moving part along the railway rail with the claw part that is biased and abutting against the back surface.

[0004] In other words, this device is configured so that a claw portion that moves along the back surface of the railway rail to peel off the pads can be freely moved towards and away from the back surface, and by moving this claw portion towards and in contact with the back surface and moving it along the back surface, it is possible to sequentially peel off and separate the numerous pads remaining on the back surface.

[0005] However, for example, on the back surface of a railway rail, there is a weld (weld protrusion) at each joint that is shorter than the length of the pad, and if the claw hits (moves in contact with) the end of this weld protrusion, there is a risk that the claw will be damaged.

[0006] Therefore, for example, when this rail pad peeling device is attached to the rail exchanger and moved along the rail, the worker must accompany the rail exchanger while moving, and in addition to moving the claw portion close to the back surface of the rail to peel off the pad, the worker must also move the claw portion away from the back surface of the rail each time to avoid contact with the welded protrusions at each joint of the rail so that the claw portion does not come into contact with these and become damaged, which is a very troublesome job.

[0007] On the other hand, it is possible to configure the system so that the approaching and receding movements are automatically controlled using a sensor or the like so that such operations do not have to be performed each time. However, since the thickness of the pad and the welding protrusion are similar, it is not easy to distinguish and detect them using a sensor. Therefore, it is difficult to achieve this automatic control using simple sensors and control devices, and it is not suitable for mass production.

[0008] Therefore, the worker must manually perform such avoidance operations while visually checking, which may result in accidentally damaging the claw portion. Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention has solved these problems, and aims to provide a highly practical railway rail pad peeling device that has a simple configuration and can automatically peel and detach pads on the back surface of a railway rail one after another using a claw part that moves together with a moving part that moves along the railway rail, and that can automatically avoid weld protrusions that may be damaged if they come into contact with the joints on the back surface when moving. [Means for solving the problem]

[0010] The gist of the present invention will be explained with reference to the accompanying drawings.

[0011] The present invention is a railway rail pad peeling device in which a moving section 2 that moves along a lifted railway rail 1 is provided with a pad peeling section 5 consisting of a claw section 4 that peels off a buffer pad 3 remaining attached to the underside of the railway rail 1 by moving along the underside of the rail, and the pad peeling section 5 is provided with a pad detection abutment section 6 that moves along the underside of the railway rail 1 as the moving section 2 moves, reaches the pad 3 before the claw section 4, and climbs over and descends over the pad 3; In conjunction with the pad detection abutment portion 6 climbing up onto the pad 3, the claw portion 4 moves from the retracted position to a position where it abuts or comes close to the rear surface of the railway rail 1, and when the pad detection abutment portion 6 passes over the pad 3 and descends, the claw portion 4 moves away from the rear surface of the railway rail 1, and a pad detection interlocking contact and separation mechanism 7 is provided, and the pad detection interlocking contact and separation mechanism 7 causes the claw portion 4 to move closer to the rear surface of the railway rail 1 and move along the rear surface of the railway rail 1 while in contact with or close to the rear surface of the railway rail 1, or the claw portion 4 moves further away. When the pad detection contact portion 6 climbs over and moves down on a welding protrusion 8 on the rear surface of the railway rail 1 which is shorter than the length of the pad 3 in the moving direction of the moving portion 2, the pad peeling portion 5 and the pad detection interlocking approach and separation mechanism 7 are configured so that the claw portion 4 of the pad peeling portion 5 moves toward the rear surface of the railway rail 1 once but then moves away, thereby automatically avoiding the claw portion 4 from moving and contacting the welding protrusion 8, and when the pad detection contact portion 6 climbs over and moves down on the pad 3, The railway rail pad peeling device is characterized in that the distance between the pad detection abutment portion 6 and the claw portion 4 is set so that when the pad detection abutment portion 6 rides on the pad 3, the claw portion 4 moves closer to the back surface of the railway rail 1 and comes into contact with or close to the back surface, and in this state the claw portion 4 moves to peel off the pad 3 from the end, and when it goes over the pad 3 and descends, the claw portion 4 moves away, and this separation movement further peels off the pad 3 even if it remains and has not yet been peeled off.

[0012] The pad detection contact portion 6 is configured to move along the rear surface of the railway rail 1 by the movement of the moving portion 2 while being in biased contact with or in biased proximity to the rear surface of the railway rail 1, and to climb up, over, and down while being in biased contact with the pad 3. The pad peeling portion 5 is configured so that the claw portion 4 is provided at the tip of a rotating arm portion 16. The pad peeling portion 5 and the pad detection interlocking contact and separation mechanism 7 move by the movement of the moving portion 2, and the pad detection contact and separation portion 6 climbs up on the pad 3 and moves by the thickness of the pad 3, and in conjunction with this, the rotating arm portion 16 rotates to move the claw portion 4 from a retracted position to a position along the rail 1. The railway rail pad peeling device according to claim 1, characterized in that the distance between the pad detection abutment portion 6 and the claw portion 4 is set so that the pad detection abutment portion 6 moves toward the back surface of the rail 1 and abuts or comes close to this back surface, and as the moving portion 2 moves, the claw portion 4 moves toward the back surface of the railway rail 1 and moves while abutting or coming close to this back surface, thereby starting to peel off the pad 3, and the pad detection abutment portion 6 moves over the pad 3 and moves by the thickness of the pad 3, causing the rotating arm portion 16 to rotate in the reverse direction and the claw portion 4 to move away, and this separation movement causes the pad 3 to be peeled off even if it remains without being peeled off.

[0013] The moving unit 2 is configured to be movable along the lifted rail 1 of a rail rail exchanger 10 that removes the lifted rail 1 from the track and moves it to the side, and pulls in and lays a new rail 9 from the side. This relates to the railway rail pad peeling device described in claim 1, characterized in that it is configured to move along the railway rail 1 by being self-propelled or connected to the railway rail exchanger 10 or pushed by the railway rail exchanger 10.

[0014] The pad peeling unit 5 and the pad detection interlocking contact / separation mechanism 7 are configured such that the pad detection abutment 6 is provided on one side that rotates around a pivot point 11 as a fulcrum, and the claw portion 4 is provided at the tip of a pivot arm 16 on the other side, and when the pad detection abutment 6 climbs up onto the pad 3 and then drops down over it, the pivot arm 16 rotates around the pivot point 11 as a fulcrum, and the claw portion 4 moves towards the back surface of the railway rail 1 and then away from it, which relates to the railway rail pad peeling device described in claim 1. [Effects of the Invention]

[0015] Since the present invention is configured as described above, it is an extremely practical railway rail pad peeling device that can automatically and sequentially peel and detach pads on the back surface of a railway rail with a simple configuration by using a claw portion that moves together with a moving portion that moves along the railway rail, and can automatically avoid weld protrusions that may be damaged if they come into contact with the joints on the back surface when moving. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a schematic explanatory diagram of the present embodiment. [Figure 2] FIG. 2 is an explanatory perspective view of the present embodiment. [Figure 3] FIG. 10 is a side view illustrating the operation before the pad is detected in this embodiment. [Figure 4] 10 is a side view illustrating the operation when the pad of the present embodiment is detected. FIG. [Figure 5] 10 is a side view illustrating the operation when peeling of the pad of this embodiment is started. FIG. [Figure 6] FIG. 10 is a side view illustrating the operation of the present embodiment during the process of peeling off the pad. [Figure 7] 10 is a side view illustrating the operation when the pad of the present embodiment is peeled off. FIG. [Figure 8] FIG. 10 is a side view illustrating the operation when the welding protrusion of this embodiment is climbed over. [Figure 9] 10 is a side view illustrating the operation when the weld protrusion of this embodiment is lowered (when contact is avoided). FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] A preferred embodiment of the present invention will be briefly described below, illustrating the operation of the present invention with reference to the drawings.

[0018] The moving part 2 is moved along the lifted railroad rail 1 (using the railroad rail 1 as a guide) by, for example, connecting it to a self-propelled railroad rail exchanger 10 or by being pushed by it, and the claws 4 of the pad peeling part 5 provided on the moving part 2 move along the back surface of the railroad rail 1. At this time, for example, the claws 4 move along the back surface in contact with or in close proximity to the back surface, and the buffer pads 3 remaining attached to the back surface of the railroad rail 1 are peeled off one by one.

[0019] In the present invention, the pad peeling section 5 is provided with a pad detection abutment section 6 at a position forward of the claw section 4 (a position forward of the claw section 4 in the direction of movement) which moves along the back surface of the railway rail 1 in the same manner as the claw section 4 as the moving section 2 moves, and which reaches the pad 3 before the claw section 4 arrives, climbing up and over it, and then descending.A pad detection linked contact / separation mechanism 7 is provided which, when the pad detection abutment section 6 reaches the pad 3 and climbs over the pad 3, moving by the thickness of the pad (in conjunction with this movement), moves the claw section 4 closer from the separation / retraction position, bringing it into contact with or close to the back surface, and then moves away by climbing over and descending, and returns it to the separation / retraction position.

[0020] Therefore, in the present invention, as described above, the pad detection linked approach / separation mechanism 7 causes the pad detection abutment portion 6 to climb onto the pad 3 and detect the pad 3, and in conjunction with this, the claw portion 4 moves from the separated retracted position to a position where it abuts or is close to the back surface of the railway rail 1, and when the pad detection abutment portion 6 moves down over the pad 3, the claw portion 4 moves away from the back surface of the railway rail 1 and returns to the separated retracted position.

[0021] In other words, the pad detection interlocking contact / separation mechanism 7 causes the claw portion 4 to move closer and move along the back surface of the railway rail 1 while in contact with or close to the back surface, or the claw portion 4 moves further away, causing the pad 3 to peel off and separate from the back surface due to the movement of the claw portion 4.

[0022] Furthermore, even if a welding protrusion 8 is present at the joint on the underside of the railway rail 1, the length of the moving part 2 of this welding protrusion 8 in the moving direction is shorter than the length of the pad 3, and so the distance between the pad detection contact part 6 and the claw part 4 is set based on this. When the pad detection contact part 6 climbs up and over the welding protrusion 8 and descends, the claw part 4 of the pad peeling part 5 will initially move closer to the underside of the railway rail 1, but before the claw part 4 reaches the welding protrusion 8, the pad detection contact part 6 will descend over the welding protrusion 8 and move away, returning to the separation retraction position, so that the claw part 4 is automatically prevented from moving into contact with the welding protrusion 8.

[0023] On the other hand, as mentioned above, when the pad detection abutment portion 6 goes up and down over the pad 3 that is longer than the weld protrusion 8, the pad detection abutment portion 6 goes up on the pad 3, causing the claw portion 4 to move closer to the back surface of the railway rail 1 and come into contact with or close to it, and in this state the pad detection abutment portion 6 moves while still on the pad 3, and the claw portion 4 moves, so that the claw portion 4 reaches the end of the pad 3 without moving away and continues to move in this manner, and this claw portion 4 starts to peel off from the end of the pad 3, and when the pad detection abutment portion 6 goes down over the pad 3, the claw portion 4 moves away, and this separating movement causes the pad 3 to peel off further, even if it has not yet peeled off and remains.

[0024] Therefore, by moving the claw portion 4 closer and then retracting in conjunction with the detection of the pad 3 by the pad detection abutment portion 6 (moving by the thickness of the pad 3), the pad 3 can be reliably peeled off and removed, and by setting the distance between the pad detection abutment portion 6 and the claw portion 4, it is possible to automatically avoid weld protrusions 8 that are shorter than the pad 3, so that the pads 3 can be automatically peeled off one by one with a simple configuration, reducing the number of people required, and the railway rail pad peeling device is extremely practical as it can automatically avoid weld protrusions that may be damaged if they come into contact with the pad during movement, even if they are located at the joint. [Example]

[0025] Specific embodiments of the present invention will be described with reference to the drawings.

[0026] In this embodiment, a moving section 2 moves along the lifted railway rail 1 as a guide, and is provided with a pad peeling section 5 equipped with a claw section 4 that peels off the cushioning pad 3 remaining adhered to the back surface of the railway rail 1 by moving along the back surface.

[0027] The moving unit 2 in this embodiment may be configured to travel on its own, but is configured to be able to move freely along the raised rail 1 of a rail exchanger 10 that retracts and removes the rail 1 that has been removed from the track and lifted up, and pulls in and lays a new rail 9 from the side.

[0028] Specifically, the rail rail exchanger 10 is configured to move along the rail rail 1 (the old rail that is lifted up and guided to be removed to the side) by being pushed by a bogie section 15 (a protruding section for pushing of the third bogie that is part of the rail rail exchanger 10) that is towed and travels along the new rail 9. Therefore, it can be easily installed in an existing rail rail exchanger 10 and is highly practical.

[0029] To explain further, the moving section 2 that is pushed by a part of the railway rail exchanger 10 in this embodiment and moves along the railway rail 1 (the lifted old rail) is configured by fastening and connecting from above and below an upper moving section that is provided with upper surface guide rollers 12 that come into contact with the top surface of the railway rail 1 and side surface guide rollers 13 that come into contact with the side surface, to a lower moving section that is provided with bottom surface guide rollers 14 and a pad peeling section 5 that is provided with the claw section 4.

[0030] In addition, the pad peeling portion 5 provided on the moving portion 2 in this embodiment is configured to have a pad detection abutment portion 6 at a position forward of the claw portion 4 (a position forward of the claw portion 4 in the direction of movement), which moves along the back surface of the railway rail 1 in the same manner as the claw portion 4 as the moving portion 2 moves, and reaches the pad 3 before the claw portion 4 arrives, climbing over and descending on it.

[0031] Furthermore, the pad peeling section 5 of this embodiment is configured to be equipped with a pad detection linked contact / separation mechanism 7, in which the pad detection contact section 6 reaches the pad 3, climbs onto the pad 3 and moves by the thickness of the pad (this movement detects the pad 3 and in conjunction with this moves), moves the claw section 4 closer from the separation / retraction position to abut or come close to the back surface, and then moves away by climbing over and descending, returning the claw section 4 to the separation / retraction position.

[0032] Therefore, in this embodiment, the pad detection linked approach / separation mechanism 7 is configured so that when the pad detection abutment portion 6 climbs onto the pad 3 and detects this pad 3, the claw portion 4 moves from the separated retracted position to a position where it abuts or is close to the back surface of the railway rail 1, and when the pad detection abutment portion 6 passes over the pad 3 and descends, the claw portion 4 moves away from the back surface of the railway rail 1 and returns to the separated retracted position.

[0033] In other words, the pad detection interlocking contact / separation mechanism 7 causes the claw portion 4 to move closer and move along the back surface of the railway rail 1 while in contact with or close to the back surface, or the claw portion 4 moves further away, and the movement of the claw portion 4 causes the pad 3 to peel off and separate from the back surface.

[0034] Furthermore, in this embodiment, even if a welding protrusion 8 is present at the joint on the underside of the railway rail 1, the length of the moving part 2 of this welding protrusion 8 in the moving direction is shorter than the length of the pad 3, and so the distance between the pad detection contact part 6 and the claw part 4 is set based on this. When the pad detection contact part 6 climbs up and over the welding protrusion 8 and descends, the claw part 4 of the pad peeling part 5 moves towards the underside of the railway rail 1 for a moment, but before the claw part 4 reaches the welding protrusion 8, the pad detection contact part 6 descends over the welding protrusion 8 and moves away, returning to the separation retraction position, so that the claw part 4 is automatically prevented from moving into contact with the welding protrusion 8.

[0035] Specifically, when the pad detection abutment portion 6 goes up and down over the pad 3 that is longer than the weld protrusion 8, the pad detection abutment portion 6 goes up on the pad 3, causing the claw portion 4 to move closer to the back surface of the railway rail 1 and come into contact with or close to it, and in this state the pad detection abutment portion 6 moves while still on the pad 3, and the claw portion 4 moves, so that the claw portion 4 reaches the end of the pad 3 without moving away and continues to move in this manner, and the claw portion 4 begins to peel off from the end of the pad 3, and when the pad detection abutment portion 6 goes down over the pad 3, the claw portion 4 moves away, and this separating movement causes the pad 3 to be further peeled off even if it has not yet peeled off and remains.

[0036] Furthermore, in this embodiment, when the pad detection abutment portion 6 climbs over and descends over a welding protrusion 8 on the back surface of the railway rail 1 which is shorter than the length of the pad 3 in the direction of movement of the moving portion 2, the claw portion 4 of the pad peeling portion 5 moves toward the back surface of the railway rail 1 at first, but then moves away, thereby automatically preventing the claw portion 4 from moving into contact with the welding protrusion 8.

[0037] Therefore, by moving the claw portion 4 closer and then retracting in conjunction with the detection of the pad 3 by the pad detection abutment portion 6 (moving by the thickness of the pad 3), the pad 3 can be reliably peeled off and detached, and by setting the distance between the pad detection abutment portion 6 and the claw portion 4, it is possible to automatically avoid weld protrusions 8 that are shorter than the pad 3, so the pads 3 can be automatically peeled off and detached one by one with a simple configuration, reducing the number of people required, and even if there is a weld protrusion 8 at the joint that may be damaged if it comes into contact with the pad during movement, it can be automatically avoided.

[0038] To explain further, the distance between the pad detection contact portion 6 and the claw portion 4 for this operation is set to a long distance (a sufficient (long) distance to perform this function) so that when the pad detection contact portion 6 passes over and descends the weld protrusion 8, the claw portion 4 does not yet reach the rear end of the weld protrusion 8, because, as mentioned above, the weld protrusion 8 is shorter than the pad 3, and when it passes over and descends the pad 3, the claw portion 4 has already reached the rear end of the pad 3 and even reached the center of the pad 3, a short distance (a sufficient (short) distance to perform this function).

[0039] In this embodiment, by setting it in this way, it is possible to automatically and reliably prevent the claw portion 4 from coming into contact with the welding protrusion 8, and when the pad detection abutment portion 6 drops below the pad 3, the pad 3 is peeled off. Even if the peeling is in progress and the pad 3 has not yet been peeled off, the movement of the claw portion 4 away from the pad 3 will also peel off the unpeeled portion of the pad 3, ensuring that the pad is peeled off.

[0040] In addition, the pad detection contact portion 6 of this embodiment is configured to move along the rear surface of the rail 1 as the moving portion 2 moves while being biased in contact with the rear surface of the rail 1, and to climb up, over, and down while being biased in contact with the pad 3. Therefore, detection of the pad 3 and operation linked thereto are reliably performed.

[0041] To explain further, the pad peeling unit 5 and the pad detection interlocking contact / separation mechanism 7 of this embodiment are configured to have a pad detection abutment unit 6 that is biased to one side as it rotates around the pivot point unit 11 as a fulcrum and presses against the back surface, and a claw unit 4 is provided at the tip of the pivot arm unit 16 that is biased away by this bias on the other side, so that when the pad detection abutment unit 6 climbs onto the pad 3 against the bias and moves while abutting by this thickness, the pivot arm unit 16 rotates against the bias around the pivot point unit 11 as a fulcrum, and the claw unit 4 moves closer to and abuts against the back surface of the railway rail 1, and when the pad detection abutment unit 6 descends over the pad 3, it moves away again.

[0042] The present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate. [Explanation of symbols]

[0043] 1. Railway rails 2 Moving part 3 Pad 4 Claws 5 Pad peeling section 6 Pad detection contact part 7 Pad detection interlocking contact / separation mechanism 8 Weld protrusion 9 New Railway Rails 10 Railway Rail Switch 11 Rotating fulcrum 12 Upper guide roller 13 Side guide roller 14 Bottom guide roller 15 Bogie section 16 Rotating arm

Claims

1. A rail rail pad peeling device in which a moving part that moves along a lifted rail is provided with a pad peeling part consisting of a claw part that moves along the back surface of the rail to peel off cushioning pads remaining on the back surface of the rail, The pad peeling unit is provided with a pad detection abutment portion at a position forward of the claw portion, which moves along the back surface of the rail as the moving unit moves, reaches the pad before the claw portion, and rides over and descends on the pad; a pad detection interlocking contact / separation mechanism is provided in which, in conjunction with the pad detection contact portion climbing up onto the pad, the claw portion moves from a retracted position to a position where it contacts or is close to the rear surface of the railway rail, and the pad detection contact portion descends over the pad, causing the claw portion to move away from the rear surface of the railway rail; The pad is configured to be separated and detached by the pad detection interlocking contact / separation mechanism, whereby the claw portion moves toward the back surface of the railroad rail while in contact with or in proximity to the back surface of the railroad rail, or by the claw portion further moving away from the back surface of the railroad rail, 1. The railway rail pad peeling device according to claim 1, wherein the pad peeling unit and the pad detection interlocking contact / separation mechanism are configured such that, when the pad detection abutment portion climbs up, over, and descends on a welded protrusion on the underside of the railway rail that is shorter than the length of the pad in the movement direction of the moving unit, the claw portion of the pad peeling unit initially moves toward the underside of the railway rail but then moves away, thereby automatically avoiding the claw portion moving into contact with the welded protrusion; and when the pad detection abutment portion climbs up, over, and descends on the pad, the pad detection abutment portion climbs up on the pad, causing the claw portion to move toward and come into contact with the underside of the railway rail and to come into contact with or close to the pad, and in this state the claw portion moves to peel the pad from the end, and when the pad descends, the claw portion moves away, and this separating movement further peels off the pad even if any part of the pad remains and has not yet been peeled off.

2. the pad detection contact portion is configured to move along the rear surface of the railroad rail by movement of the moving portion while being in biased contact with or in biased proximity to the rear surface of the railroad rail, and to ride up, over, and down while being in biased contact with the pad, The pad peeling unit is configured such that the claw portion is provided at the tip of a rotating arm portion, 2. The railway rail pad peeling device according to claim 1, wherein the pad peeling unit and the pad detection interlocking contact / separation mechanism are configured such that, in conjunction with the movement of the moving unit, the pad detection abutment rides on the pad, moves by an amount corresponding to the thickness of the pad, and detects the pad, the rotating arm rotates to move the claw portion from a separated and retracted position toward the rear surface of the railway rail and comes into contact with or close to the rear surface, and as the moving unit moves, the claw portion approaches the rear surface of the railway rail and moves in a state of abutting or close to the rear surface, thereby starting to peel the pad, and the pad detection abutment rides on the pad and moves by an amount corresponding to the thickness of the pad, the rotating arm rotates in the reverse direction, and the claw portion moves away, and this separation movement allows the pad to be peeled off even if it remains without being peeled off.

3. The moving unit is configured to be movable along the lifted rail of a rail exchanger that retracts and removes the lifted rail that has been released from the track to the side and pulls in and lays a new rail from the side, and 2. The railway rail pad peeling device according to claim 1, which is configured to move along the railway rail by being self-propelled, or connected to the railway rail exchanger, or pushed by the railway rail exchanger.

4. 2. The railway rail pad peeling device according to claim 1, wherein the pad peeling unit and the pad detection interlocking contact / separation mechanism are configured such that the pad detection abutment is provided on one side that rotates around a pivot point, and the claw portion is provided at the tip of the pivot arm on the other side, and when the pad detection abutment climbs up onto the pad and then drops over it, the pivot arm rotates around the pivot point, causing the claw portion to move closer to the back surface of the railway rail and then move away from it.

Citation Information

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