Aspects and implementations of the present disclosure relate to a track assembly tool and, in particular, a track assembly tool used to fabricate tracks (“track”), e.g., stationary or fixed track, of a magnetic levitation (maglev) vehicle.
Maglev trains use electromagnetic control systems to provide lift to push the train up off of a track and an electromagnetic engines to propel the train along the track. Complex forms and precision placement of maglev track and maglev components are known problems in the fabrication of maglev train systems.
Aspects and embodiments of the disclosure are directed to a track assembly tool to fabricate sections of magnetic levitation (maglev) track. The track assembly tool is a high tolerance installation template for cross-sectional precision setting of multiple track functional surfaces, which can be used sequentially, as a standard part to build a guideway. Embodiments of the track assembly tool may be utilized to efficiently produce sections of maglev track assemblies within manufacturing tolerances to ensure the desired and proper orientation of a maglev vehicle to be guided over or along the maglev track with respect to lift/levitation and propulsion.
Embodiments of the track assembly tool allow for the proper and accurate positioning of functional elements prior to anchoring these elements in a binder material, such as concrete or other moldable material.
Embodiments are directed to a method of forming a track section that includes coupling functional components to a framework, in which at least some of the functional components are arranged in a precise and accurate arrangement in a common plane, and building a rigid, removable, and reusable mold around the framework and functional components. Steel reinforcement (“rebar”), which is bent into a shape corresponding to a track section profile, is provided within the mold. Dispensing a binder material into the mold and curing the binder material; and removing the mold from the cured binder material to reveal a completed track section at the required accuracy set by the framework. At at least some other functional components are arranged parallel to each other in a first lateral plane normal to the common plane and at least still other functional components are arranged parallel to each other in a second lateral plane normal to the common plane and parallel to the first lateral plane.
According to embodiments, the at least some functional components in the common plane can include levitation rails and braking rails.
In accordance with other embodiments, the at least some other functional components and the at least still other components can include guidance rails and propulsion rails.
In embodiments, the framework can include placeholders arranged to receive and position the functional elements coupled to the framework.
According to still other embodiments, the functional elements may include anchors arranged to extend within the shaped rebar.
In accordance with other embodiments, the method can also include supporting the framework on at least one base supported on a ground surface. The building of the mold can include installing upper inner forms over upwardly facing portions of the framework and adjacent the functional components; installing lower inner forms in a region between the framework and the ground surface, lower supports being located adjacent the lower inner forms, wherein the rebar is supported on the lower supports; and installing outer forms over lateral sides of the track section shape of the rebar. Further, after removing the mold, the completed track section may be supported on the framework and the lower supports, and the method can also include lifting the completed track section from the framework and the lower supports; sliding, in a longitudinal direction, the completed track section relative to the framework and the lower supports; and removing the upper inner forms from an interior of the completed track section.
In still other embodiments, the framework may include a first alignment fixture and a second alignment fixture, and the method may also include supporting the first alignment fixture on a bottom tool form. The bottom tool form can include a plurality of tool locating post holes and a plurality of pitch locating post holes, into which a plurality of tool locating posts and a plurality of pitch locating posts are inserted, the first alignment fixture can include holes to receive the plurality of tool locating posts and the plurality of pitch locating posts and component receivers for retaining the at least some of the functional components to be arranged parallel to each other in the common plane. The first alignment fixture may be supported above the rebar and the method can also include positioning and aligning the at least some of the functional components, whereby the at least some of the functional components are arranged parallel to each other in the common plane. The building of the mold can include installing lower forms over longitudinal ends of the bottom form tool. The dispensing of the binder material may include dispensing the binder material to a level covering anchors of the at least some functional components and below the at least some functional components; and wherein the at least some functional components may include a levitation rail and braking rails.
In further embodiments, after a first predetermined curing period, the method can include removing the first alignment fixture from the bottom tool form; supporting the second alignment fixture on the tool locating posts; and coupling the at least some other functional components to the second alignment fixture in the first lateral plane normal to the common plane. The building of the mold can further include installing a first intermediate form above a first lateral edge of the bottom tool form and above the lower form in a region of the first lateral edge of the bottom tool form, the dispensing of the binder material can include dispensing the binder material to cover anchors of intermediate ones of the at least some other functional components and to provide a lateral separation between the intermediate ones of the at least some other functional components and the dispensed binder material; and the intermediate ones of the at least some other functional components may include a propulsion rail.
In still other embodiments, after a second predetermined curing period, the building of the mold further includes installing an first upper form above the first intermediate form, the dispensing of the binder material can further include dispensing the binder material to cover anchors of upper ones of the at least some other functional components and to provide a lateral separation between from the upper ones of the at least some other functional components and the dispensed binder material; and the upper ones of the at least some other functional components may include a guidance rail.
According to other embodiments, after a third predetermined curing period, the method can include removing the second alignment fixture from the bottom tool form and from the at least some other functional components; rotating the second alignment fixture and supporting the second alignment fixture on the tool locating posts; and coupling the at least still other functional components to the second alignment fixture in the second lateral plane normal to the common plane and parallel to the first lateral plane. The building of the mold may further include installing a second intermediate form above a second lateral edge of the bottom tool form and above the lower form in a region of the second lateral edge of the bottom tool form, and the dispensing of the binder material can further include dispensing the binder material to cover anchors of intermediate ones of the at least still other functional components and to provide a lateral separation between the intermediate ones of the at least still other functional components and the dispensed binder material; and the intermediate ones of the at least still other functional components may include a propulsion rail.
In accordance with further embodiments, after a fourth predetermined curing period, the building of the mold can further include installing an second upper form above the second intermediate form, and the dispensing of the binder material may further include dispensing the binder material to cover anchors of upper ones of the at least still other functional components and to provide a lateral separation between from the upper ones of the at least still other functional components and the dispensed binder material; and the upper ones of the at least still other functional components may include a guidance rail.
In further embodiments, after a fifth predetermined curing period, the first and second upper forms, the first and second intermediate forms and the lateral forms can be removed to reveal a completed track section.
Embodiments are directed to a track section tool for fabricating a track section, which includes a framework; and a plurality of placeholders connected to the framework. The plurality of placeholders are arranged to retain functional components to the framework during fabrication and to orient at least some of the functional components in a precise and accurate arrangement in a common plane, to orient at least some other of the functional elements parallel to each other in a first lateral plane normal to the common plane, and to orient at least still other functional components parallel to each other in a second lateral plane normal to the common plane and parallel to the first lateral plane. The at least some functional components in the common plane include a levitation rail and a braking rail, the at least some other functional components and the at least still other components include a guidance rail and a propulsion rail.
In accordance with still yet other embodiments, the track section tool can also include a bottom tool form having a plurality of tool locating post holes and a plurality of pitch locating post holes, and a plurality of tool locating posts and a plurality of pitch locating posts being insertable into the plurality of tool locating post holes and the plurality of pitch locating post holes. The framework can include a first alignment fixture having holes to receive the plurality of tool locating posts and the plurality of pitch locating posts and component receivers for retaining the at least some of the functional components to be arranged parallel to each other in the common plane, and a second alignment fixture having holes to receive the plurality of tool locating posts and the plurality of pitch locating posts and component receivers for retaining one of the at least some other functional components in the first lateral plane or the at least still other functional components in the second lateral plane.
Other exemplary embodiments and advantages of the present invention may be ascertained by reviewing the present disclosure and the accompanying drawing.
The present invention is further described in the detailed description which follows, in reference to the noted plurality of drawings by way of non-limiting examples of exemplary embodiments of the present invention, in which like reference numerals represent similar parts throughout the several views of the drawings, and wherein:
The following detailed description illustrates by way of example, not by way of limitation, the principles of the disclosure. This description will clearly enable one skilled in the art to make and use the disclosure, and describes several embodiments, adaptations, variations, alternatives and uses of the disclosure, including what is presently believed to be the best mode of carrying out the disclosure. It should be understood that the drawings are diagrammatic and schematic representations of exemplary embodiments of the disclosure, and are not limiting of the present disclosure nor are they necessarily drawn to scale.
Embodiments of the present disclosure may be used in a transportation system, for example, as described in commonly-assigned U.S. Pat. No. 9,718,630, titled “Transportation System,” the contents of which are hereby expressly incorporated by reference herein in their entireties.
In the following description, the various embodiments of the present disclosure will be described with respect to the enclosed drawings. As required, detailed embodiments of the present disclosure are discussed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the embodiments of the disclosure that may be embodied in various and alternative forms. The figures are not necessarily to scale and some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present disclosure.
The particulars shown herein are by way of example and for purposes of illustrative discussion of the embodiments of the present disclosure only and are presented in the cause of providing what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the present disclosure. In this regard, no attempt is made to show structural details of the present disclosure in more detail than is necessary for the fundamental understanding of the present disclosure, such that the description, taken with the drawings, making apparent to those skilled in the art how the forms of the present disclosure may be embodied in practice.
As used herein, the singular forms “a,” “an,” and “the” include the plural reference unless the context clearly dictates otherwise. For example, reference to “a magnetic material” would also mean that mixtures of one or more magnetic materials can be present unless specifically excluded. As used herein, the indefinite article “a” indicates one as well as more than one and does not necessarily limit its referent noun to the singular.
Except where otherwise indicated, all numbers expressing quantities used in the specification and claims are to be understood as being modified in all examples by the term “about.” Accordingly, unless indicated to the contrary, the numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by embodiments of the present disclosure. At the very least, and not to be considered as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should be construed in light of the number of significant digits and ordinary rounding conventions.
Additionally, the recitation of numerical ranges within this specification is considered to be a disclosure of all numerical values and ranges within that range (unless otherwise explicitly indicated). For example, if a range is from about 1 to about 50, it is deemed to include, for example, 1, 7, 34, 46.1, 23.7, or any other value or range within the range.
As used herein, the terms “about” and “approximately” indicate that the amount or value in question may be the specific value designated or some other value in its neighborhood. Generally, the terms “about” and “approximately” denoting a certain value is intended to denote a range within ±5% of the value. As one example, the phrase “about 100” denotes a range of 100±5, i.e. the range from 95 to 105. Generally, when the terms “about” and “approximately” are used, it can be expected that similar results or effects according to the disclosure can be obtained within a range of ±5% of the indicated value.
As used herein, the term “and/or” indicates that either all or only one of the elements of said group may be present. For example, “A and/or B” shall mean “only A, or only B, or both A and B”. In the case of “only A”, the term also covers the possibility that B is absent, i.e. “only A, but not B”.
The term “substantially parallel” refers to deviating less than 20° from parallel alignment and the term “substantially perpendicular” refers to deviating less than 20° from perpendicular alignment. The term “parallel” refers to deviating less than 5° from mathematically exact parallel alignment. Similarly “perpendicular” refers to deviating less than 5° from mathematically exact perpendicular alignment.
The term “at least partially” is intended to denote that the following property is fulfilled to a certain extent or completely.
The terms “substantially” and “essentially” are used to denote that the following feature, property or parameter is either completely (entirely) realized or satisfied or to a major degree that does not adversely affect the intended result.
The term “comprising” as used herein is intended to be non-exclusive and open-ended. Thus, for example a composition comprising a compound A may include other compounds besides A. However, the term “comprising” also covers the more restrictive meanings of “consisting essentially of” and “consisting of”, so that for example “a composition comprising a compound A” may also (essentially) consist of the compound A.
The embodiments disclosed herein can be used separately and/or in combination with each other, unless specifically stated to the contrary.
Aspects and embodiments of the disclosure are directed to a track assembly tool to fabricate sections of magnetic levitation (maglev) track. The track assembly tool is a high tolerance installation template for cross-sectional precision of multiple track functional surfaces, which can be used sequentially, as a standard part to build a guideway. The sections of maglev track (also referred to as “track” hereafter) may be less than 100 meters (m) and, in embodiments, between 50 and 100 m in length, to produce hundreds of kilometers of completed guideway. Accuracy of the above-noted high tolerance can be on the order of, e.g., less than 25 millimeters (mm) per 3 m of length, preferably less than 25 mm per 6 m length, more preferably less than 25 mm per 10 m length, even more preferably less than 25 mm per 50 m of length and most preferably less than 25 mm per 100 mm of length. These sections can have a width or gauge between 3 and 8 m. In other embodiments, sections of maglev track may be between 2 and 10 m long, and preferably 6 m or less in length, and most preferable about 3 m long, and with a width or gauge of 4.5 m. Embodiments of the track assembly tool may be utilized to efficiently produce sections of maglev track within manufacturing tolerances to ensure the desired and proper orientation of a maglev vehicle to be guided over or along the maglev track with respect to lift/levitation and propulsion.
Embodiments of the track assembly tool allow for the proper and accurate positioning of functional elements prior to anchoring these elements in a binder material, such as concrete or other moldable material.
While the embodiments of
In contrast to the embodiments described in
In
In
In
Once the applicable functional components are coupled to, e.g., via clamping, to the component receivers of second alignment fixture 2101, forms 2302 can be installed above bottom form tool 1501 to produce a mold to contain additional binder material to fixedly attach the next functional component, e.g., a propulsion rail, as shown in
After this second stage of the fabrication process is completed, i.e., the binder material is cured,
The preceding description sets forth numerous specific details such as examples of specific systems, components, methods, and so forth, in order to provide a good understanding of several embodiments of the present disclosure. It will be apparent to one skilled in the art, however, that at least some embodiments of the present disclosure may be practiced without these specific details. In other instances, well-known components or methods are not described in detail or are presented in simple block diagram format in order to avoid unnecessarily obscuring the present disclosure. Thus, the specific details set forth are merely exemplary. Particular embodiments may vary from these exemplary details and still be contemplated to be within the scope of the present disclosure.
Reference throughout this specification to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiments included in at least one embodiment. Thus, the appearances of the phrase “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment.
Although the operations of the methods herein are shown and described in a particular order, the order of the operations of each method may be altered so that certain operations may be performed in an inverse order or so that certain operation may be performed, at least in part, concurrently with other operations. In another embodiment, instructions or sub-operations of distinct operations may be in an intermittent or alternating manner.
The above description of illustrated implementations of the invention, including what is described in the Abstract, is not intended to be exhaustive or to limit the invention to the precise forms disclosed. While specific implementations of, and examples for, the invention are described herein for illustrative purposes, various equivalent modifications are possible within the scope of the invention, as those skilled in the relevant art will recognize.
This International Application claims the benefit of U.S. Provisional Application No. 62/879,053 filed Jul. 26, 2019, the disclosure of which is expressly incorporated by reference in its entirety.
Filing Document | Filing Date | Country | Kind |
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PCT/US2020/043721 | 7/27/2020 | WO |
Number | Date | Country | |
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62879053 | Jul 2019 | US |