Not Applicable.
Railcars or trains typically travel on tracks. In some instances during travel, the railcar or train may switch from one track to another.
The present disclosure provides a track switching system and methods. In particular, systems and methods are provided for using a track switch that is designed to provide temporary or permanent railway turnouts that allow for quick, unlimited switching without the need for cutting into existing tracks. And because the track switch does not require cutting into existing track, the switch is more cost effective, does not require disruptions to the main track to install, and can be used in applications where traditional switching methods may be prohibitively expensive (e.g., as a main line turnout for industries with smaller or infrequent shipments, as stub track, to re-open industrial tracks where switches were previously removed, or for temporary access to project sites or temporary storage of train cars). When not in use, the switch may be completely separate from the main line. The design of the track switch allows for assembly in a variety configurations to suit a specific application to connect any two tracks, for example, tracks having differing vertical or horizontal geometries, longitudinal grades, side slopes, or any combination thereof.
In some aspects, the present disclosure provides a track switch that includes a turntable section, one or more track sections coupled together to form a single track, and a pair of ramp sections coupled to opposing ends of the single track. One of the track sections is rotationally coupled to the turntable section to allow ramp sections to rotate relative to the turntable section and selectively connect a first railroad track to a second railroad track.
The turntable section comprises ballast frame, a bearing base plate coupled with a pivot pin, and a bearing plate. The ballast frame further comprises two longitudinal members connected by a plurality of substantially perpendicular cross members, and is coupled with the bearing base plate, so that the pivot pin extend upwardly, away from the ballast frame. The bearing plate defines a central hole through which the pivot pin extends, thereby allowing the bearing plate to rotate about a central axis of the pivot pin.
Each of the one or more track sections further comprises a track base coupled with a track running lengthwise along the track base. The track base plates defines a hole through configured to receive the pivot pin, to provide a rotatable connection about pivot pin. The hole of the track base plate may be disposed generally in the center of the track base plate. Additionally, the track base plate is configured to fixedly couple with a connection plate at each end of the track base plate. A corresponding number of connection plates are provided to connect between each of the track sections. The one or more track sections may vary in both length and curvature.
Each of the two ramped sections comprise a ramp base plate, an angled track, at least two guard rails, and at least two rail clamps. The ramp base plate is configured to be placed on top of one of the first railroad track and the second railroad track. A pair of rail stops may be attached to the underside of the ramp base plate to align the ramp section with either the first railroad track or the second railroad track. The ramp base plate also includes ramped sections at a first distal end. Additionally, the ramp base plate is configured to fixedly couple with a connection plate at a second distal end opposite the ramped sections, wherein the connection is configured to connect between a ramp section and a track section.
The angled track slopes substantially upward from a generally pointed end adjacent the ramped sections, along the length of the ramped section, and terminating at a wide end adjacent a second distal end opposite the first distal end.
The at least two guard rails run parallel to the angled track. The at least two guard rails may be configured so that at least two guard rails are disposed to the interior of the angled track or least two guard rails are disposed to the exterior of the angled track.
The at least two rail clamps are coupled with the ramp based plate at a locking pivot and configured to provide a removable connection with an existing track. Each of the at least two rail clamps comprise a pivot bar fixedly coupled with the locking pivot, a handle configured to rotatably connect with the pivot bar, and one or more locking plates having a channel configured to receive either the first railroad track or the second railroad track. The handle and the one or more locking plates are fixedly coupled so that they rotate together about the pivot bar between and unlocked position away from the railroad track, and a locked position wherein the channels of the one or more locking plates coupled with the railroad track
The track switch may further comprise one or more support frames disposed between the one or more track sections and the ground to provide support to the track sections. Each support frame comprises two longitudinal members connected by a plurality of substantially perpendicular cross members.
The track switch may further comprise an actuator system for rotating switch, for example, a hydraulic actuator. The track switch may include at least one first actuator connection bracket coupled to one of the track sections. Additionally, one or more corresponding second actuator connection brackets may be provided at the turntable section, to connect the actuator system between the track section and the turntable section. Alternatively, the one or more corresponding second actuator connection brackets may be provided on the support frame, to connect the actuator system between the track section and the support frame.
In some aspects, the present disclosure provides a method for selectively coupling a track switch to a railroad track that includes connecting a plurality of track sections together to form a single track, connecting a ramp section to each end of the single track, coupling a turntable section to one of the plurality of track sections to enable the ramp sections to rotate relative to the turntable section, and rotating the single track from a closed position where the ramp sections are misaligned with an existing track to an open positon where the ramp sections are aligned with the existing track.
The foregoing and other aspects and advantages of the invention will appear from the following description. In the description, reference is made to the accompanying drawings which form a part hereof, and in which there is shown by way of illustration a preferred embodiment of the invention. Such embodiment does not necessarily represent the full scope of the invention, however, and reference is made therefore to the claims and herein for interpreting the scope of the invention.
The invention will be better understood and features, aspects and advantages other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such detailed description makes reference to the following drawings.
The invention will now be described more specifically with reference to the following non-limiting examples. It is to be noted that the following embodiments are presented herein for purpose of illustration and description only. It is not intended to be exhaustive or to be limited to the precise form disclosed.
It is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof, as well as additional items. Unless specified or limited otherwise, the terms “mounted,” “connected,” “supported,” and “coupled” and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, “connected” and “coupled” are not restricted to physical or mechanical connections or couplings.
Track switches are commonly used to allow train cars to change from one track to another, for example, to bypass a portion of a main rail line that is undergoing maintenance, to store cars on a stub track, or to act as a turnout for delivery of goods away from the main line. However, existing track switches are subject to many shortcomings. For example, installation of existing switches requires cutting into a main track, leading to long installation times, interruptions in the usability of the main track, increased maintenance, and high costs. Due to these shortcomings, traditional switching methods tend to be permanent in nature and are typically not cost effective for tracks that serve smaller industries or that are used infrequently.
The track sections 14 and the ramp sections 16 are coupled with one another to form and act as a single line of track, thereby permitting, for example, a railcar or locomotive, to travel across the track switch 10. The turntable section 12 is configured to connect with one of the track section 14, forming a rotatable connection. This connection allows the track sections 14 and the ramp sections 16 to rotate relative to the turntable section 12 between a closed position and an open position.
Additionally, a plurality of support frames 18 may be positioned generally adjacent to and/or underneath the track switch 10. The support frames 18 may provide vertical support to and a stable base for the track sections 14. The number and location of support frames 18 can vary depending on the requirements of the specific installation, including, but not limited to, soil conditions and types, drainage requirements, the length and shape of the track sections 14 being used, and the distance between the railroads that the track switch 10 is intended to connect.
In the illustrated non-limiting example, an actuator bracket 27 is coupled to one of the support frames 18. The actuator bracket 27 houses an actuator 25 that may be coupled to one of the track sections 14. Arranged in this manner, the track switch 10 can be rotated about the turntable section 12, between a closed portion and an open position, by extend or retracting the actuator 25.
In general, the various component of the track switch 10 may be customized to suite a particular railroad application. For example, the arrangement of the turntable section 12 may be varied along the track switch 10 to alter the location of a pivot point defined by the track switch. For example, in some non-limiting examples, the turntable section 12 may be arranged generally adjacent to a longitudinal middle of the track switch (see, e.g.,
In the open position, the track switch 10 is rotated such that the ramp sections 16 are aligned with and provide a path between a first existing track 28 and a second existing track 29. That is, the ramp sections 16 may be rotated to the open position where the ramp sections 16 align with the first existing track 28 and the second existing track 29. With one of the ramp sections 16 aligned with the first existing track 28 and the other ramp section 16 being aligned with the second existing track 29, a railcar or locomotive is able to travel along the first existing track 28, across the track switch 10, and onto the second existing track 29, or visa versa. In doing so, the railcar or train will travel onto a ramp section 16, across the various track sections 14, and finally off the other ramp section 16. Additionally, when in the open position, each of the rail clamps 17 is coupled to the respective one of the first existing track 28 and the second existing track 29, thereby preventing the track switch 10 from rotating out of the open position.
With regard to both
In the illustrated non-limiting example, the pivot point defined be the position of the turntable section 12 along the track switch 10 is arranged adjacent to one of the ramp sections 16 (e.g., the right ramp section 16 from the perspective of
In this specific non-limiting example, the track switch 10 is entirely separated from only the second existing track 29, with one of the ramp sections 16 remaining in an overlapped but misaligned arrangement with the first existing track 28. As such, a railcar or locomotive would be able to travel on the second existing track 29 when the track switch is in the closed position.
The ballast frame 30 defines a bottom portion 42 configured to rest on the ground, and a top portion 44 configured to connect with and support the bearing base plate 36. Additionally, the ballast frame 30 may include various attachment or lifting points 46 for moving, transporting, or installing the turntable section 12.
The pivot pin 38 is coupled with and extends upwardly from bearing base plate 36. The bearing plate 40 defines a hole 46 which receives the pivot pin 38, forming a rotatable connection that allows the bearing plate 40 to rotate relative to the bearing base plate 36 and the ballast frame 30. The bearing plate 40 may come in various shapes, however is it preferably circular and may include a number of indented portions 48 on the outer circumference. The indented portions 48 may be used, for example, to aid in locating the track switch 10 in an open or a closed position. The bearing plate 40 is supported by the bearing base plate 36.
The turntable section also includes the actuator brackets 22 attached to the ballast frame 30. Here, two actuator brackets 22 are coupled to the same longitudinal member 32 on one side of the frame 30. However, the number and position of the actuator brackets 22 can vary depending on the configuration of the track switch 10 being used. For example, in some cases there may be no actuator bracket 22, or there may only be one. Further, where multiple brackets 22 are used, the brackets 22 do not need to be located on the same side of the ballast frame 30, and may be located on different longitudinal members 32, so that the brackets 22 are disposed on opposite sides of the ballast frame 30.
The bearing plate 40 may also include various indented portion 48, disposed around the outer perimeter of the bearing plate 40. In this case, there are four indented portions 48, however there may be more or less. Furthermore, while the indented portions 48 shown here are semi-circular in shape, the indented portions 48 may take on a variety of shapes depending on what is required by the application.
It should be understood and appreciated, as will become apparent in the present disclosure, that the track sections 14 do need not be a single length or shape. Rather, some track sections 14 may be considered long, and others comparatively short. Furthermore, some track sections 14 may be straight, while others may be curved. The number, length, and curvature of the track sections 14 used will be determined by the specific application of the track switch 10 and the existing track sections being selectively connected by the track switch 10.
Referring to
The hole 62 is configured to receive the pivot pin 38 of the turntable section 12, establishing a rotatable connection between the track section 14 and the turntable section 12 about the pivot pin 38. When the hole 62 of the track base plate 50 receives the pivot pin 38, the bottom surface 54 of the track base plate 50 is disposed adjacent to the bearing plate 40 of the turntable section 12. While multiple track sections 14 that are capable of receiving a pivot pin 38 may be used, only one of the track sections 14 receives the pivot pin 38. Thus, the track sections 14 in a given assembly of the track switch 10 may be assembled in a modular fashioned and the pivot point may be determined by the position of the turntable section 12 and the particular track section 14 that receives the pivot pin 38. In some non-limiting examples, some of the track sections 14 may include a hole 62, and others may not, as long as one of the track sections 14 is capable of receiving the pivot pin 38.
While the hole 62 is shown here to be disposed generally in the center of the track base plate 50, the hole 62 may be placed anywhere on the track base plate 50. By having the hole 62 located for example, near distal end 60, the center of rotation of the track switch 10 can be adjusted to fit a specific application of the track switch 10.
The track 52 is configured to allow, for example, a railcar or locomotive, to travel along the track 52. The track 52 is fixedly connected to the top surface 56 of the track base plate 50 and runs along the length of the track base plate 50 from one distal end 60 of the track base plate to second distal end 61 of the track base plate 50.
The distal ends 60 and 61 of the track base plate 50 are each configured to connect and align with a distal end 60 or 61 of another track base plate 50 or a ramp section 16. As shown here, threaded holes 64 are disposed in the track base plate 50, adjacent to each distal end 60 and 61 of the track base plate 50. The threaded holes 64 may be configured to align with corresponding holes 65 of the track connection bracket 26 (see
Additionally, the track section 50 may include offset alignment bars 66, which are configured to help align abutting track sections 50, so that the respective tracks 52 are in linear alignment with one another. In some non-limiting examples, the track section 14 may include a plurality of attachment or lifting points 68 for moving, transporting, or installing the track section 14
Referring to
In general, the track sections 14 may vary in length and curvature, as illustrated herein, to provide a single track that extends between the ramp sections 16. As such, the track sections 14 may be customized to fit a particular existing track arrangement and/or a particular distance between existing tracks.
Referring specifically to
The ramped track 75 is comprised of two parallel ramped rails, each defining a bottom surface 87 and a sloped top surface 88 which forms a generally pointed end 89, and a wide end 90 (see
The ramped track 75 is oriented such that the pointed ends 89 of the ramped track 75 are disposed adjacent to the ramped portion 84 of the ramp base plate 74. The ramped track 75 extends along the length of the ramp base plate 74 toward the second distal end 80 of the ramp base plate 74. Oriented in this manner, the ramped portion 84 of the ramp base plate 74 and the sloped top surface 88 of the ramped track 75 form a generally continuous upward slope, beginning at the first distal end 79 of the ramp base plate 74 and terminating at the second distal end 80.
The guard rails 76 run parallel with the ramped track 75. In this case, there are four guard rails 75, with two being disposed to the interior of the track 75 and two being disposed to the exterior of the track 75 adjacent the sides 81 and 82. However, fewer than four guard rails 75 may be used, for example, there may only be two guards rails 75, which are both disposed to the interior of the track 75.
Each guard rail 76 includes a bottom surface 91 coupled with the top surface 78 of the ramp base plate 74, and a sloped top surface 92 corresponding with the sloped top surface 88 of the ramped track 75 such that the top surface 88 of the ramped track 75 and the top surface 92 of the guard rails 76 are generally aligned. In some embodiments, the top surface 92 of the guard rails 76 may be higher or lower than the sloped top surface 88 of the ramped track 75. The guard rails 76 may also include gussets, braces, or other support structures to provide additional strength and rigidity. Each one of the pair of rail clamps 17 is attached to a respective side 81 and 82 of the ramp base plate 74 at a lock pivot bracket 93 that is coupled to the ramp base plate 74.
Each of the locking plates 96 are fixedly connected with the handle 95 and define a hole 97 through which the pivot bar 94 extends. Each of the locking plates 96 defines a channel 98 configured to receive and connect with the railroad track 28. The handle 95 and the one or more locking plates 96 rotate as a single unit about the pivot bar 94 between an unlocked position, where the rail clamp 17 is not in contact with an existing track, and a locked position, where the channel 97 of the one or more locking plates 96 couples with an existing track, thereby securely connecting the ramp section 16 with the railroad track 28.
It should be understood and appreciated that any number or configuration of support frames 18 may be utilized, depending on the requirements of the specific use case scenario. Any support frames 18 are preferably arranged to provide support to the various track sections 14 and ramp sections 16 of the track switch 10 so that the track switch 10 is fully supported anywhere between the open position and the closed position.
Within this specification embodiments have been described in a way which enables a clear and concise specification to be written, but it is intended and will be appreciated that embodiments may be variously combined or separated without parting from the invention. For example, it will be appreciated that all preferred features described herein are applicable to all aspects of the invention described herein.
Thus, while the invention has been described in connection with particular embodiments and examples, the invention is not necessarily so limited, and that numerous other embodiments, examples, uses, modifications and departures from the embodiments, examples and uses are intended to be encompassed by the claims attached hereto. The entire disclosure of each patent and publication cited herein is incorporated by reference, as if each such patent or publication were individually incorporated by reference herein.
Various features and advantages of the invention are set forth in the following claims.
The present application claims priority to U.S. Provisional Patent Application No. 62/965,679, filed Jan. 24, 2020, and U.S. Provisional Patent Application No. 63/041,323, filed Jun. 19, 2020. Each of the aforementioned Provisional patent applications is incorporated by reference in its entirety for all purposes.
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/US2021/014944 | 1/25/2021 | WO |
Number | Date | Country | |
---|---|---|---|
62965679 | Jan 2020 | US | |
63041323 | Jun 2020 | US |