A rail mounting system for one-sided bolts

Abstract

The invention provides a rail mounting system for securing a wear liner having at least a liner opening therethrough to a structure comprising a first plate and a second plate adapted for mounting on the structure, wherein the first plate and the second plate are spaced apart by an outer opening therebetween and an inner opening therebetween, a releasable fastener assembly adapted to cooperate with the wear liner, the first plate and the second plate, wherein the releasable fastener assembly is partially inserted into the wear liner and through the liner opening and outer opening. The releasable fastener assembly comprises a front portion adapted to be received by a central portion, and an end portion for receiving the front portion such that rotation of the end portion in a first direction causes the front portion to rotate from an installation position to a final position, and further rotation of the end portion in the same direction causes the front portion to be retained within the central portion in the final position to prevent movement of the front portion in the first direction.

Description

Technical Field

[0001] The present disclosure generally relates to rail mounting systems. More particularly, it relates to a rail mounting system for one-sided bolts for use in industrial applications such as mining. Background

[0002] This application is related to the following applications: (1) Singapore Patent Application No. 10202302769Q “A LOCKING SEAL FOR A BLIND-SIDED BOLT SYSTEM,” filed 28 September 2023; and (2) PCT International Application No. PCT / SG2024 / 050153 “A FASTENER FOR A ONE-SIDED BOLT SYSTEM,” filed 14 March 2024; All of these applications are incorporated by reference herein.

[0003] The following discussion of the background to the invention is intended to facilitate an understanding of the present invention However, it should be appreciated that the discussion is not an acknowledgment or admission that any of the material referred to was published, known or part of the common general knowledge in any jurisdiction as at the priority date of the application.

[0004] In the mining industry, as well as in general industrial applications, several onesided rail mount systems are available. These existing systems allow for the attachment of components from one side of a structure, which is often a critical requirement in confined or hard-to-reach areas. The common use of these systems highlights their utility and the demand for efficient one-sided fastening solutions.

[0005] However, despite the availability of various one-sided mounting systems, there has been a notable absence of rail mount systems designed specifically for associated one-sided bolts in both the mining and general industrial sectors. The existing systems typically involve either simple one-sided bolts or more complex one-sided fastening mechanisms.

[0006] Tn the mining industry, the current state of the art presents several challenges and limitations in the context of mounting and unmounting consumable wear liners and other objects from one side of a structure without requiring extensive or permanent modifications. Specifically, the shortcomings of existing solutions can be summarized as follows:

[0007] Permanent Modifications Required: Traditional one-sided bolt systems in mining applications often necessitate enlarging the existing hole to a much larger round hole, or to an oval or square shape. This modification is not easily reversible and prevents the structure from returning to its original, standard-sized hole configuration once the system is no longer needed.

[0008] Adaptor Plate Limitations: Some systems utilize adaptor plates that necessitate clearance above the liner for installation. This design inherently requires the removal of all liners positioned above a specific liner to replace it, significantly increasing labor and downtime.

[0009] Residual Parts and Safety Hazards: Systems that maintain existing hole sizes often leave behind parts of the locking mechanism upon removal. These residual pieces can drop and accumulate in an uncontrolled manner, leading to potential safety hazards and maintenance complications.

[0010] Lack of Flexibility: Existing systems generally do not offer sufficient flexibility in terms of fitment and spacing of liners. This rigidity can lead to inefficient use of space and materials, as well as increased labor costs associated with the installation and removal processes. |0011| Cost and Productivity Issues: The time and labor required to remove and replace liners using existing systems are significant. This inefficiency translates directly into higher operational costs and reduced productivity, which are critical concerns in high-throughput industrial environments such as mining.

[0012] Therefore, the present invention attempts to overcome at least in part some of the aforementioned problems and to provide for an improved approach for addressing the foregoing challenges. Summary of the Invention

[0013] One aspect of the present invention relates to a rail mounting system for securing a wear liner to a structure. A rail mounting system may be understood as a mechanism designed to attach a replaceable protective component, referred to herein as a wear liner, to a structural framework or support system. The first plate and second plate are parts of this system, serving as the attachment points for the wear liner on the structure.

[0014] It may be provided that the rail mounting system comprises a first plate and a second plate adapted for mounting on the structure, with an outer opening and an inner opening defining the space between them. One advantage of this arrangement is that it allows for easy installation and removal of the wear liner without requiring extensive disassembly or modification of the structural framework. This can save time, labor costs, and resources in comparison to traditional mounting systems which may require significant alterations to be made before a new component can be installed.

[0015] It may be provided that the rail mounting system further comprises a releasable fastener assembly designed to cooperate with both the wear liner and the first plate and second plate. The releasable fastener assembly is partially inserted into the wear liner through a liner opening, as well as the outer opening of the plates, allowing for secure attachment while maintaining flexibility in positioning where desired along the outer opening and detachment from the plates when needed. [00161 One advantage of this arrangement is that it offers increased versatility and adaptability compared to conventional mounting systems which may rely on permanent or semi-permanent fasteners. This can be particularly beneficial in industries where equipment undergoes frequent changes, upgrades, or maintenance. Additionally, the ability to easily detach and replace components reduces downtime and increases overall operational efficiency. [00171 It may be provided that the front portion of the releasable fastener assembly is a bolt with an elongate head and a threaded shank, while the central portion includes a first portion, a second portion, and a central opening for receiving the threaded shank. The nut configuration of the end portion allows it to be received by the threaded shank for displacement towards the locking component, which in turn causes the front portion (bolt) to rotate into its final position and securely retain within the central component. [00181 One advantage of this arrangement is that it provides a robust and reliable connection between the wear liner and the structure while maintaining ease of installation and removal The use of a bolt as the front portion allows for efficient transfer of loads from the structure to the wear liner, ensuring optimal performance and durability. Furthermore, the rotational mechanism of the end portion ensures that the front portion is securely locked in place once installed, preventing any unwanted movement or dislodgement.

[0019] In various embodiments, the elongate head includes a length and a width, and its length is in a horizontal orientation in the installation position.

[0020] In various embodiments, the elongate head includes a length and a width, and its length is in a vertical orientation in the final position.

[0021] In various embodiments, each of the first protrusion and the second protrusion includes an extension extending from the first protrusion and the second protrusion, wherein the extension has an inner surface that is radially curved. This design feature ensures a snug fit between the components, providing additional stability and preventing any potential wobbling or misalignment during operation.

[0022] In various embodiments, the elongate head has two radially curved surfaces at each diagonally opposed end, wherein each radially curved surface is dimensioned to fit the inner surface of the extension in the installation position.

[0023] In various embodiments, the first plate and the second plate each includes at least a plate opening in alignment with the mounting opening, wherein the plate opening is adapted for receiving a plate fastener to secure the first plate and the second plate to the structure.

[0024] In various embodiments, the mount opening has a countersunk region.

[0025] In various embodiments, the second portion includes a base dimensionally bigger than the outer opening such that the base includes a face that abuts an outer face of the outer opening thereby clamping the wear liner to the first plate and the second plate.

[0026] In a second aspect of the invention, there is provided a method for securing a wear liner having at least a liner opening to a structure having a plurality of mounting openings comprising providing a first plate and a second plate adapted for mounting on the structure, wherein the first plate and the second plate are spaced apart by an outer opening therebetween and an inner opening therebetween when mounted, providing a wear liner adapted to be secured to the first plate and the second plate, the wear liner including a liner opening therethrough in alignment with the outer opening, providing a releasable fastener adapted to cooperate with the wear liner, the first plate and the second plate, wherein the releasable fastener is partially inserted into the wear liner and into the liner opening and outer opening. The releasable fastener comprises a front portion adapted to be received by a central portion, and an end portion for receiving the front portion and displacing the central portion to the front portion. The method comprises inserting the front portion and a first portion of the central portion through the outer opening and into the inner opening of the structure, rotating the end portion in a first direction to cause the front portion to rotate from an installation position to a final position, rotating the end portion further in the same direction to cause the front portion to be displaced towards the end portion and retained within the central portion in the final position to prevent movement of the front portion in the first direction thereby clamping the wear liner to the structure.

[0027] In various embodiments, the front portion is a bolt comprising an elongate head and a threaded shank, and the central portion is a locking component including a first portion, a second portion, and a central opening for receiving the threaded shank.

[0028] In various embodiments, the end portion is a nut configured to be received by the threaded shank for displacing the locking component towards the elongate head.

[0029] In various embodiments, the first portion includes a first protrusion and a second protrusion extending from the second portion, the first portion and the second portion including a space therebetween to retain the elongate head in the final position.

[0030] In various embodiments, the elongate head includes a length and a width, and its length is in a horizontal orientation in the installation position.

[0031] In various embodiments, the elongate head includes a length and a width, and its length is in a vertical orientation in the final position.

[0032] In various embodiments, each of the first protrusion and the second protrusion includes an extension extending from the first protrusion and the second protrusion, wherein the extension has an inner surface that is radially curved.

[0033] In various embodiments, the elongate head has two radially curved surfaces at each diagonally opposed end, wherein each radially curved surface is dimensioned to fit the inner surface of the extension in the installation position.

[0034] ln various embodiments, the first plate and the second plate each includes at least a plate opening in alignment with the mounting opening, wherein the plate opening is adapted for receiving a plate fastener to secure the first plate and the second plate to the structure.

[0035] In various embodiments, the mount opening has a countersunk region.

[0036] In various embodiments, the second portion includes a base dimensionally bigger than the outer opening such that the base includes a face that abuts an outer face of the outer opening thereby clamping the wear liner to the first plate and the second plate.

[0037] In a third aspect of the invention, there is provided a rail mounting system for securing a wear liner having at least a liner opening therethrough to a structure, comprising a plate adapted for mounting on the structure, wherein the plate includes a slotted opening, a releasable fastener assembly adapted to cooperate with the wear liner and the plate wherein the releasable fastener assembly is partially inserted into the wear liner and through the liner opening and slotted opening. The releasable fastener assembly comprises a front portion adapted to be received by a central portion, and an end portion for receiving the front portion such that rotation of the end portion in a first direction causes the front portion to rotate from an installation position to a final position, and further rotation of the end portion in the same direction causes the front portion to be retained within the central portion in the final position to prevent movement of the front portion in the first direction.

[0038] In a fourth aspect of the invention, there is provided a method for securing a wear liner having at least a liner opening to a structure comprising providing a plate adapted for mounting on the structure, wherein the plate includes a slotted opening, providing a wear liner adapted to be secured to the plate, the wear liner including a liner opening therethrough in alignment with the slotted opening, providing a releasable fastener assembly adapted to cooperate with the wear liner and the plate, wherein the releasable fastener assembly is partially inserted into the wear liner and into the liner opening and 7 slotted opening. The releasable fastener assembly comprises a front portion adapted to be received by a central portion, and an end portion for receiving the front portion and displacing the central portion to the front portion. The method comprises inserting the front portion and a first portion of the central portion through the outer opening and into the inner opening of the structure, rotating the end portion in a first direction to cause the front portion to rotate from an installation position to a final position, rotating the end portion further in the same direction to cause the front portion to be displaced towards the end portion and retained within the central portion in the final position to prevent movement of the front portion in the first direction thereby clamping the wear liner to the structure. Brief Description of the Drawings

[0039] In the drawings, like reference characters generally refer to the same parts throughout the different views. The drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the invention. The dimensions of the various features or elements may be arbitrarily expanded or reduced for clarity. In the following description, various embodiments of the invention will be better understood with reference to the detailed description when considered in conjunction with the non-limiting examples and the accompany drawings, in which:

[0040] Figure 1 illustrates a side view of an exploded view of a rail mounting system according to various embodiments;

[0041] Figure 2 illustrates a rear perspective view of the rail mounting system according to various embodiments;

[0042] Figure 3 illustrates a front perspective view of the rail mounting system according to various embodiments;

[0043] Figure 4 illustrates a side view of the rail mounting system according to various embodiments,

[0044] Figure 5a shows a perspective view of a first portion of the releasable fastener assembly according to various embodiments; 100451 Figure 5b shows a side view of the first portion of the releasable fastener assembly according to various embodiments;

[0046] Figure 5c shows a top view of the first portion of the releasable fastener assembly according to various embodiments;

[0047] Figure 6a shows a perspective view of a central portion of the releasable fastener assembly according to various embodiments;

[0048] Figure 6b shows a top view of the central portion of the releasable fastener assembly according to various embodiments;

[0049] Figure 6c shows a side view of the central portion of the releasable fastener assembly according to various embodiments;

[0050] Figure 7a shows a perspective view of an end portion of the releasable fastener assembly according to various embodiments;

[0051] Figure 7b shows a top view of the end portion of the releasable fastener assembly according to various embodiments;

[0052] Figure 7c shows a side view of the end portion of the releasable fastener assembly according to various embodiments;

[0053] Figure 8 illustrates various combinations of wear liners mounted on a structure according to various embodiments;

[0054] Figure 9a shows a perspective view of a plate according to various embodiments,

[0055] Figure 9b shows a front view of the plate according to various embodiments;

[0056] Figure 9c shows a side view of the plate according to various embodiments;

[0057] Figure 10a shows a perspective view of another plate according to various embodiments;

[0058] Figure 10b shows a front view of another plate according to various embodiments;

[0059] Figure 10c shows a side view of another plate according to various embodiments,

[0060] Figure 11 illustrates a releasable fastener assembly in a pre-installation position according to various embodiments; 100611 Figure 12a illustrates a side view of a releasable fastener assembly in an installation position according to various embodiments;

[0062] Figure 12b illustrates a rear view of a releasable fastener assembly in an installation position according to various embodiments;

[0063] Figure 13 illustrates a releasable fastener assembly in a final position according to various embodiments;

[0064] Figure 14a illustrates a front view of a novel wear liner according to various embodiments;

[0065] Figure 14b illustrates a front perspective view of a novel wear liner with a cutout according to various embodiments;

[0066] Figure 15a illustrates a front view of yet another novel wear liner according to various embodiments;

[0067] Figure 15b illustrates a front perspective view of yet another novel wear liner with a cut-out according to various embodiments;

[0068] Figure 16a illustrates a front view of a releasable fastener assembly in a final position on the rail mounting system according to various embodiments;

[0069] Figure 16b illustrates a side view of a releasable fastener assembly in a final position on the rail mounting system according to various embodiments;

[0070] Figure 16c illustrates a rear view of a releasable fastener assembly in a final position on the rail mounting system according to various embodiments,

[0071] Figure 17a illustrates a front view of a single plate rail mounting system according to various embodiments; and

[0072] Figure 17b illustrates a rear view of a single plate rail mounting system according to various embodiments. Detailed Description

[0073] Reference will now be made in detail to an exemplary embodiment of the present invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the embodiment, it will be understood 10 that they are not intended to limit the invention to these embodiments. On the contrary, the invention is intended to cover alternatives, modifications, and equivalents, which may be included within the spirit and scope of the invention as defined by the appended description. Furthermore, in the following detailed description of embodiments of the present invention, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be recognized by one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail as not to unnecessarily obscure aspects of the embodiments of the present invention.

[0074] In the specification the term “comprising” shall be understood to have a broad meaning similar to the term “including” and will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. This definition also applies to variations on the term “comprising” such as “comprise” and “comprises”.

[0075] In the specification, the term “engage” and its variants including “engagement”, “engages”, “engaging” and “engaged” as used herein are to be interpreted to include engagement by touching, .rubbing or abutting including engagement in one or more of an axial, radial, tangential and circumferential direction, and includes engagement through an intermediary such as a component positioned or sandwiched between the e g counter face and head of the blind-sided fastener.

[0076] Throughout the specification and claims, the following terms take the meanings explicitly associated herein, unless the context clearly dictates otherwise. The phrase “in one embodiment” as used herein does not necessarily refer to the same embodiment, though it may. Furthermore, the phrase “in another embodiment” as used herein does not necessarily refer to a different embodiment, although it may. Thus, as described below, various embodiments of the invention may be readily combined, without departing from the scope or spirit of the invention.

[0077] Certain terminology used in the description is for convenience in reference only and shall not be limiting. For example, up, down, front, back, right, and left refer to the disclosed subject matter as orientated in the view being referred to. The words, “inwardly”, “inner”, “outwardly” and “outer” refer to directions toward and away from, respectively, the geometric center of the aspect being described and designated parts thereof. The terminology will include the words specifically mentioned, derivatives thereof, and words of similar meaning. Like references numbers denote like features, components, or elements throughout the various embodiments.

[0078] Tn addition, as used herein, the term “or” is an inclusive “or” operator, and is equivalent to the term “and / or,” unless the context clearly dictates otherwise. The term “based on” is not exclusive and allows for being based on additional factors not described, unless the context clearly dictates otherwise. In addition, throughout the specification, the meaning of “a, ”an,” and “the” include plural references. The meaning of “in” includes “in” and “on.”

[0079] Features that are described in the context of an embodiment may correspondingly be applicable to the same or similar features in the other embodiments. Features that are described in the context of an embodiment may correspondingly be applicable to the other embodiments, even if not explicitly described in these other embodiments. Furthermore, additions and / or combinations and / or alternatives as described for a feature in the context of an embodiment may correspondingly be applicable to the same or similar feature in the other embodiments.

[0080] In the context of various embodiments, the articles “a”, “an” and “the” as used with regard to a feature or element include a reference to one or more of the features or elements.

[0081] As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. 100821    To achieve the stated features, advantages and objects, the present invention is directed to a locking seal for a blind-sided bolt system.

[0083] As will be understood in the below discussion, the present invention aims to address the shortcomings by providing a versatile and efficient rail mount system for securing an object to a structure. As an example, the rail mount system is designed to integrate seamlessly with existing mineral processing transfer chutes and similar applications where consumable wear liners are installed. Specifically, the invention seeks to: • Eliminate the need for permanent modifications: The 2-piece rail mount system can be fitted into existing holes that typically follow standard patterns for bolts or studs. This feature allows for the installation and removal of the rails or plates without necessitating permanent alterations to the structure, thereby preserving the ability to revert to standard bolting systems if needed. • Facilitate direct face-to-face liner fitment: The rail mount system allows for direct installation of objects or wear liners without requiring additional clearance above them. The rail mount system enables the individual replacement of liners without the need to remove adjacent ones, significantly reducing labour and downtime. • Ensure safe and controlled removal of releasable fastener assemblies: The rail mount system is engineered to ensure that no parts of the fasteners are left behind upon removal. This feature addresses the safety hazards associated with the uncontrolled accumulation of residual parts • Enhance flexibility and efficiency: The rail mount system offers greater flexibility in the fitment and spacing of wear liners. This adaptability not only improves the efficiency of space and material usage but also reduces the time and labour required for installation and replacement, thereby lowering operational costs and boosting productivity. • Provide versatile installation options: In situations where no pre-existing mounting holes are available, the rail mount system can be welded onto the structure as either a one-piece or two-piece design, offering versatility in various installation scenarios. By overcoming the limitations of existing one-sided bolt systems and adaptor plates, the present invention aims to deliver a more efficient, safe, and cost-effective solution for mounting and unmounting consumable wear liners in industrial applications.

[0084] Figure 1 illustrates a side view of an exploded view of a rail mounting system according to various embodiments. Figure 2 illustrates a perspective view of an exploded view of the rail mounting system according to various embodiments. Figure 3 illustrates a front perspective view of the rail mounting system according to various embodiments. Figure 4 illustrates a side view of the rail mounting system according to various embodiments. With reference to the aforesaid figures, the rail mounting system includes, but is not limited to, a first plate 20 and a second plate 30 adapted for mounting on a structure 10. Throughout the specification, the structure 10 may include any piece of machinery or equipment where a surface of the structure is exposed to wear. For example, the structure 10 can be a transfer chute where only the inside surface is accessible by an operator. The structure 10 has a first surface 14 that is typically concealed and not readily accessible during wear liner replacement. The first surface 14 is either not accessible or can only be accessed by setting up a scaffolding or using an access equipment. The structure also has a second surface 12 that against which the first plate 20 and the second plate 30 are mounted on. The first plate 20 and the second plate 30 each includes at least a plate opening 22, 32 therethrough to facilitate mounting the first plate 20 and the second plate 30 the structure 10. The first plate 20 is identical to the second plate 30. Throughout this specification, the term “plate” can refer to either the first plate 20 or the second plate 30. The structure 10 has at least a mounting opening 16 that are aligned with the plate opening to receive a standard fastener for securing the first plate and the second plate to the structure 10. Various standard fasteners can be used to secure the first plate and the second plate to the structure through the plate openings 22, 32.

[0085] As shown in Figure 1, the first plate 20 and the second plate are spaced apart from each other when mounted. The plates are spaced apart by an outer opening 25 that faces the wear liner 60 or the object, and an inner opening 26 that faces the second surface 12 of the structure 10. The outer opening 25 and the inner opening 26 are positioned longitudinally along the length of the first plate 20 and the second plate 30. The width of the outer opening 25 (or the space between) is smaller than the width of the inner opening 26. This is to accommodate the partial insertion of the releasable fastener assembly 200 into the outer opening 25 where a portion of the releasable fastener assembly 200 is inserted into the inner opening 26 and another portion of the releasable fastener assembly 200 abuts against an inner face of the outer opening 25 that faces the wear liner 60, details of which will be explained below. In other embodiments, the inner opening 26 is of any shape and size as long as it is bigger than the width of the outer opening 25. In an embodiment, the wear liner 60 comprises a first material 62 that provides a wear layer exposed to wear and a second material 64 that is a backing plate fixed onto the plates. The wear liner 60 is formed by bonding the first material to the second material using a bonding material. The wear liner 60 includes a liner opening 66 extending therethrough for facilitating the insertion of the releasable fastener assembly 200. The liner opening 66 is aligned with the outer opening 25 of the first plate 20 and the second plate 30. While the wear liner 60 is presented as small, the wear liner can be of any size, for example, 300mm by 300mm.

[0086] Figures 5a-5c illustrate various views of a front portion of the releasable fastener assembly according to various embodiments. With reference to the aforesaid figures, and in various embodiments, a releasable fastener assembly 200 is specifically designed to secure the wear liner 60 to the first plate 20 and the second plate 30 which are secured to the structure 10. The releasable fastener assembly 200 allows the wear liner 60 to be easily installed and removed as mentioned above. The releasable fastener assembly 200 comprises a front portion 210, a central portion 220 and an end portion 230. In some embodiments, and with reference to figures 5a-5c, the front portion 210 is a bolt that 15 includes an elongate head 211 and a threaded shank 212. The elongate head 211 includes a planar upper surface 213 and a bottom surface 214. In various embodiments, the bolt can include T-shaped bolts or other suitable types of bolts. The elongate head 211 of the bolt has a length L that is longer than its width W. In other embodiments, the elongate head 211 includes a radially curved surface diagonally opposite each other. While all four corners of the elongate head 211 may be radially curved, the radially curved surface at the diagonally opposed end is more pronounced and is of a greater radius than the curved surface at the other diagonally opposed ends. By having the radially curved surfaces at the diagonal opposite ends that is of a greater radius than the other two at the other two corners, this keeps the elongate head 211 in a relatively fixed position in the pre-installation position. It also serves to prevent the elongate head 211 from rotating in the opposed direction (anticlockwise direction). The outer opening 25 is dimensioned to fit the width W of the elongate head 211 to be inserted through the outer opening 25 and once the elongate head 211 is inserted into the outer opening 25, the bolt can be rotated 90 degrees such that the length L of the elongate head when rotated 90 degrees is dimensioned to fit the length of the inner opening 26. In this way, the bottom surface of the elongate head 211 abuts itself against an inner surface of the outer opening 25 when it is rotated 90 degrees.

[0087] Figures 6a-6c illustrate various views of a central portion of the releasable fastener assembly according to various embodiments. In various embodiments, the central portion 220 is a locking component. The central portion 220 includes a first portion 221 and a second portion 222. The first portion 221 includes the upper section of the central portion 220 and is dimensioned to extend through the liner opening 66 of the wear liner 60. The first portion 221 extends from the second portion 222 which includes a base and a central opening 224 through its base The second portion 222 is dimensionally larger than the first portion 221 since it is designed not to enter the outer opening 25 and is dimensioned to be smaller than the liner opening 66 so that it will abut against the inner surface of the liner opening 66. In some embodiments, the base is, but not limited to, a cylindrical shape. With reference to Figure 6a and 6b, the second portion 222 has a top surface 225 and a bottom surface 226. [0088| In various embodiments, the first portion 221 has two protrusions 227,228 extending from the top surface 225 of the base. In an embodiment, the first portion 221 includes a first protrusion 227 and a second protrusion 228 where each protrusion extends from the second portion 222, and each protrusion 227, 228 is at least substantially identical to each other. The term “at least substantially identical” is to be understood to mean in particular that the protrusions have an identical shape and preferably an identical size apart from deviations caused by the manufacturing process. Each protrusion 227, 228 is located on opposing sides of the base or on opposing sides of the top surface 225. Each protrusion 227, 228 has an upper surface from which an extension projects from the upper surface of the protrusion 227, 228. In some embodiments, the upper surface is flat, sloping or a combination of flat and sloping. The extension includes an inner surface 223 and an outer surface 229. In an embodiment, the inner surface 223 and the outer surface 229 are curved. In some embodiments, the extension has a half crescent moon shape when viewed from the top. In an embodiment, the inner surface 223 of the extension faces the inner surface 223 of the other opposing extension. The inner surfaces 223 of the extensions are radially curved in order to accommodate the radially curved surface of the elongate head 211 so that it can receive the elongate head 211 in the pre-installation position, details of which will be explained later. In various embodiments, the inner surfaces 223 of the protrusions 227, 228 are shaped to receive the elongate head 211 of the bolt between the protrusions when the releasable fastener assembly is in a pre-installation position when securing the wear liner 60 to the first plate 20 and the second plate 30.

[0089] Figures 7a-7c illustrate various views of an end portion of the releasable fastener assembly according to various embodiments. In various embodiments, the end portion 230 is a nut. The end portion 230 has a threaded aperture 234 extending through its central axis. The threaded aperture 234 is adapted to receive the threaded shank of the front portion in order to fasten the end portion 230 to the central portion 220.

[0090] In order to affix the wear liner 60 to the first plate 20 and the second plate 30, the end portion 230 includes tool recesses 232 on its bottom surface which engages with a fastening tool 50 for tightening the end portion 220. The bottom surface of the end portion 17 230 is the surface that is exposed to the fastening tool 50. The end portion 230 allows the central portion 220 (i.e. locking component) to follow the end portion as it is being rotatably displaced towards the first plate and the second plate. When the end portion 230 is rotated in a clockwise direction by the fastening tool, due to the resistive engagement between the end portion 230 and the threaded shank 234, the elongate head 211 attached to the threaded shank is caused to rotate in the same direction from an initial position to a final position. This in turn causes the central portion 220 to be displaced towards the inner opening as the end portion becomes attached to the second portion of the central portion 220. In another embodiment, the central portion 220 remains stationary as the end portion 230 becomes attached to the second portion of the central portion 220. In another embodiment, the end portion 230 is tightened with an impact gun, socket wrench or spanner. Tightening the end portion 230 causes the front portion 210 to rotate due to the resistive engagement between the end portion 230 and the threaded shank of the front portion 210, which in turn causes the elongate head 211 to rotate clockwise from the initial position (i.e. when the elongate head is in a horizontal orientation) to the final position (i.e. when the elongate head is in a vertical orientation). Further tightening of the end portion 230 in the same direction causes the elongate head in its vertical orientation to be displaced inwards and in between the two protrusions 227, 228 of the central portion. In other words, the elongate head 211 is retained within the inner surfaces of the two protrusions 227, 228. Due to the elongate shaped head, this ensures that the elongate head 211 cannot be removed through the outer opening.

[0091] Figure 8 illustrates various combinations of wear liners mounted on a structure according to various embodiments. In various embodiments, the rail mounting system enables wear liners 60 to be fitted on the first plate 20 and second plate 30 in various sizes. The structure 10 includes mounting openings 16 spaced apart from one another that are typically standard in the industry. For example, the mounting openings 16 have a diameter of 18mm and are spaced at 150mm from each mounting opening center to center. The plates can be fitted into existing mounting openings 16 that typically follow standard patterns for bolts or studs. This feature allows for the installation and removal of the plates without necessitating permanent alterations to the structure, thereby preserving the ability 18 to revert to standard bolting systems if needed. First plates 20 and second plates 30 can be mounted throughout the structure 10 at regular intervals so that it fills up the entire structure 10. Once the plates are mounted, wear liners 60 of various sizes can be mounted on the plates. For example, wear liners can be in sizes of approximately 300mm by 300mm, 600mm by 300mm, 450 by 300mm, 300mm by 150mm. This offers greater flexibility in the fitment and spacing of wear liners 60 on the structure 10. This adaptability not only improves the efficiency of space and material usage but also reduces the time and labour required for installation and replacement, thereby lowering operational costs and boosting productivity. Additionally, the rail mounting system allows for direct face-to-face wear liner fitment. The rail mounting system allows for direct installation of objects or wear liners without requiring additional clearance above them. The rail mount system enables the individual replacement of wear liners without the need to remove adjacent ones, significantly reducing labour and downtime.

[0092] Figures 9a-9c show various views of a plate according to various embodiments. Figures lOa-lOc show various views of yet another plate according to various embodiments. With reference to the aforesaid figures, the first plate 20 is identical to the second plate 30. Although the drawing indicators are referring to the first plate 20, it can also refer to the second plate 30. The plate 20 each includes at least a plate opening 22 therethrough to facilitate mounting the plate 20 the structure 10. As mentioned previously, the structure 10 has a plurality of mounting openings 16 that are aligned with the plate opening 22 to receive a standard fastener, for example, studs or bolts, for securing the plate to the structure 10. In some embodiments, and with reference to Figure 9c, the plate opening 22 is circular and has a countersunk region for supporting a specific bolt head (for example, a tapered bolt head) for fastening the plate to the structure 10. Tn other embodiments, and with reference to Figure 10c, the plate opening 22 has an oval shape and has a countersunk region for supporting the specific plug for fastening the plate to the structure 10. For example, the plate opening 22 includes a plug weld opening 22 for connecting the plate to the structure through plug welding. The plate 20 also includes a flange 29 protruding from a front section of the plate 20. The front section of the plate 20 is the section facing or is exposed to the wear liner. The flange 29 creates the desired space 19 between another plate so as to create the outer opening 25 and the inner opening 26 for accommodating the insertion of the releasable fastener assembly 200 within the openings for securing the wear liner to the plates.

[0093] Figure 11 illustrates a releasable fastener assembly in a pre-installation position according to various embodiments. For illustration purposes, the wear liner 60 is not visible so as to clearly show the releasable fastener assembly 200 in operation. The pre-installation position is a position where an installer who wishes to secure the wear liner to the plates 20, 30 with a fastening tool 50 is in a ready position to insert the releasable fastener assembly 200 and the wear liner 60 into the outer opening 25 between the plates 20, 30. In the pre-installation position, the front portion 210 is received by central opening of the central portion 220. The end portion 230 is received by the front portion 210 so that it can displace the central portion to the front portion 210 when it is rotated. Once the end portion 230 is rotated to the point where the front portion 210 or the elongate head of the front portion is within the first portion of the central portion, the releasable fastener assembly 200 is in the pre-installation position. In other words, the elongate head should be located within the extensions of the protrusions 229, or within the half crescent moon shaped extensions In another embodiment, the radially curved surfaces at the diagonal opposite ends of the elongate head is located within the extensions of the protrusions, or within the half crescent moon shaped extensions. The purpose of the radially curved surfaces at the diagonal opposite ends is to keep the elongate head in a relatively fixed position in the preinstallation position. In various embodiments, the releasable fastener assembly 200 is sold in the pre-installation position so that it is ready for the installer to immediately fit the fastening tool 50 on to the end portion of the releasable fastener assembly for immediate installation of the wear liner without having to adjust any components of the releasable fastener assembly. This provides the advantage of efficient and quick fitment of the wear liners in operation.

[0094] Figures 12a and 12b illustrates a side view and a rear view of a releasable fastener assembly in an installation position respectively, according to various embodiments. For illustration purposes, the structure 10 is not visible so as to clearly show 20 the releasable fastener assembly in operation. The installation position is a position where a part of the releasable fastener assembly 200 is inserted into the outer opening 25 between the plates 20, 30. In the installation position, the elongate head 211 is oriented horizontally (i.e., its length is oriented at 0 degrees with respect to its longitudinal axis) which is the same position as the pre-installation position. The elongate head 211 and the first portion 221 of the central portion is inserted into the outer opening within the plates 20, 30. The second portion 222 of the central portion remains outside the plates 20, 30. The outer opening 25 also allows the releasable fastener assembly 200 to be moved laterally to the operator’s desired installation position.

[0095] Figure 13 illustrates a releasable fastener assembly in a final position according to various embodiments. The final position is a position where the wear liner 60 is secured and clamped to the plates 20, 30. In order to secure the wear liner 60 to the plates 20, 30 from the installation position, the installer will have to tighten the end portion 230 by using the fastening tool. When the end portion 230 is rotated in a clockwise direction, due to the resistive engagement between the end portion 230 and the threaded shank, the elongate head 211 attached to the threaded shank is caused to rotate in the same direction from the installation position to a final position This in turn causes the central portion 220 to be displaced towards the outer surface of the plates 20, 30. As the second portion 222 of the central portion is greater in size than the outer opening 25, the second portion 222 abuts the outer surface of the plates 20, 30 and provides a resistive force as the end portion is further rotated by the fastening tool thereby providing the clamping force of the wear liner on plates. When the elongate head 211 is rotated from a horizontal orientation (, i.e. with its length at 0 degrees with respect to its longitudinal axis) to a vertical orientation (,i.e. with its length at approximately 90 degrees with respect to its longitudinal axis), further rotation of the end portion in the clockwise direction (i. e. tightening) will cause the elongate head to be displaced towards the end portion, resulting in the elongate head 211 rotating to the vertical orientation. Further tightening of the end portion will cause the elongate head 211 to be displaced towards the inner surface of the outer opening 25 and to abut a portion of the elongate head 211 against the inner surface of the outer opening. At the same time, the protrusions of the central portion are within the inner opening. This causes the elongate 21 head 211 to be retained within the protrusions of the central portion, thereby clamping the wear liner 60 to the plates 20, 30. In other words, the elongate head 211 is retained within the inner surfaces of the two protrusions. When the elongate head 211 is retained within the protrusions of the central portion, it is prevented from rotational displacement in both clockwise and anti-clockwise directions and remains in the final position for the service life of the wear liner. This provides the advantage of minimal loosening of the front portion (i.e. bolt) even if the end portion (or nut) loosens over time.

[0096] To release the fastener 200 from its final position, in the case where the wear liner needs to be removed for replacement, the steps are reversed, i.e. from the final position to the installation position, and removal from the plates. The end portion is loosened using the fastening tool 50 by rotating the fastening tool in an anti-clockwise direction. This will cause the elongate head 211 to be displaced away from the inner surface of the outer opening 25 and away from the inner surface of the outer opening. This causes the elongate head 211 to be displaced away from the protrusions of the central portion, thereby loosening the clamping force of the wear liner 60 on the plates 20, 30. Once the elongate head 211 is no longer retained within the protrusions of the central portion, further anticlockwise rotation of the bolt will cause the elongate head 211 to be rotated from a vertical orientation (,i.e. with its length at approximately 90 degrees with respect to its longitudinal axis) to a horizontal orientation (, i.e. with its length at 0 degrees with respect to its longitudinal axis) to the installation position. At this point, the wear liner 60 is loosened from the plates 20, 30 and the installer can easily remove the wear liner and the releasable fastener assembly 200 from the plates 20, 30 for replacement of the wear liner 60.

[0097] Figures 14a and 15a illustrates a front view of a novel wear liner according to various embodiments. Conventionally, a typical wear liner design consists of four wear liners arranged in a square configuration. Each wear liner measures approximately 300mm x 300mm and contains 4 liner openings for Ml 6 double-sided bolts, requiring 16 Ml 6 double-sided bolts to mount the wear liner to the structure. Figures 14a and 14b depicts a single novel wear liner with dimensions of approximately 600mm x 600mm. The wear liner includes 6 liner openings for releasable fastener assemblies, which are used to secure 22 the wear liner to the plates. Figures 15a and 15b depicts a single novel wear liner with dimensions of approximately 300mm by 300mm. The wear liner includes 2 liner openings for releasable fastener assemblies, which are used to secure the wear liner to the plates, compared to 4 liner openings as used in a standard conventional wear liner. With fewer releasable fastener assemblies needed per wear liner compared to the conventional standard wear liner, installation time is significantly reduced compared to the standard 300mm x 300mm wear liner.

[0098] Figures 14b and 15b illustrates a front perspective view of a novel wear liner with a cut-out according to various embodiments. The wear liner 60 includes a liner opening 66 extending therethrough for facilitating the insertion of the releasable fastener assembly 200. The liner opening 66 is aligned with the outer opening 25 of the first plate 20 and the second plate 30 to facilitate the insertion of the releasable fastener assembly 200 through the liner opening 66 of the wear liner and the outer opening 25 of the plates. Within the liner opening 66, there is a first liner opening 67 and a second liner opening 68. The second liner opening 68 is larger in diameter than the first liner opening 67. The second liner opening 68 is dimensioned to fit the nut 230 of the releasable fastener assembly 200 and the first liner opening 67 is dimensioned to allow the first portion 221 of the central portion of the releasable fastener assembly 200 to extend through the first liner opening 67. In other words, the upper surface of the second portion 222 of the central portion abuts against the inner surface of the first liner opening 67 so that only the first portion 221 extends through the first liner opening 67.

[0099] The novel wear liner design offers several advantages over the standard wear liner design: 1. Reduced Installation Time: With only 2 (for a 300mm wear liner) or 6 releasable fastener assemblies (for a 600mm wear liner) required per wear liner, the installation process is significantly faster compared to the standard wear liner design that requires handling multiple smaller liners with a total of 16 bolts. This reduction in fasteners streamlines the assembly process and decreases labor time. 2. Enhanced Structural Integrity: The larger wear liner provides a more substantial coverage area, reducing the number of joints and seams between liners. This leads to improved structural integrity and potentially fewer weak points where wear and tear could initiate. 3. Simplified Maintenance: Fewer fasteners mean that maintenance and replacement of wear liners are more straightforward and less time-consuming. This can lead to reduced downtime for equipment and lower maintenance costs over time 4. Cost Efficiency: By reducing the number of components (fewer fasteners and fewer liners), the overall cost associated with purchasing and storing spare parts can be lowered. Additionally, the simplified installation and maintenance process contribute to cost savings in labor. 5. Improved Safety: Handling and installing fewer, larger liners can enhance safety by reducing the number of repetitive tasks and potential for errors during installation. This can lead to a safer working environment for maintenance personnel.

[00100] Figures 16a-c illustrates a front view, a side view and a rear view respectively of a releasable fastener assembly in a final position on the rail mounting system according to various embodiments. The wear liner 60 includes 6 liner openings for releasable fastener assemblies 200, which are used to secure the wear liner to the plates 20, 30. The wear liner 60 achieves its final position when the releasable fastener assemblies 200 are securely clamped between plates 20 and 30. To accomplish this, the installer inserts each releasable fastener assembly 200 through the liner opening 66 and tightens the end portion of the fastening tool, causing the elongate head 211 attached to the threaded shank to rotate in a clockwise direction. This rotation displaces the central portion of the releasable fastener assembly towards the plates 20 and 30. As the second portion 222 of the central portion is larger than the first liner opening 67 and the outer opening 25, it creates a resistive force against further rotation, effectively clamping the wear liner 60 onto the plates. When the elongate head 211 transitions from a horizontal to a vertical orientation in its final position, additional tightening of the fastening tool causes the elongate head 211 to move towards the end portion, ultimately abutting against the inner surface of outer opening 25. Simultaneously, the protrusions of the first portion move deeper within the inner opening, securing the elongate head 211 within the protrusions. This prevents rotational displacement in both directions, ensuring the wear liner remains firmly in place throughout its service life, minimizing the risk of loosening even if the end portion were to loosen over time.

[00101] Figures 17a and 17b illustrates a front view and a rear view of a single plate rail mounting system respectively according to various embodiments. With reference to the aforesaid figures, the plate 20 is a single plate that replicates the first plate and the second plate of the aforementioned drawings. The plate 20 includes at least a slotted opening 25 therethrough to facilitate mounting the plate 20 the structure 10. The slotted opening 25 replicates the outer opening or the space between the first plate and the second plate. The slotted opening 25 also allows the releasable fastener assembly 200 to be moved laterally to the operator’s desired position. The plate 20 includes plate openings 22 therethrough that matches the mounting openings of the structure 10. In practice, not all the plate openings 25 are used and only some plate openings may be used to attach the plate 20 to the structure 10. In some embodiments, the plate opening 22 is a circular counterbored hole that is aligned with the mounting opening to receive a standard fastener, for example, studs or bolts, for securing the plate 20 to the structure 10. In some embodiments, the plate opening 22 is circular and has a countersunk region for supporting a specific bolt head (for example, a tapered bolt head) for fastening the plate 20 to the structure 10. In other embodiments, the plate opening 22 has an oval shape and has a countersunk region for supporting the specific plug for fastening the plate to the structure 10. For example, the plate opening 22 includes a plug weld opening for connecting the plate to the structure through plug welding. On the rear view of the plate 20, recesses are shown around the slotted openings 25. The recesses replicate the inner openings of the first plate and the second plate, and do not need to follow the shape of the slotted opening 25. In other words, the front portion of the releasable fastener assembly just needs to be aligned with the slotted opening.

[00102] While the invention has been particularly shown and described with reference to specific embodiments, it should be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is thus indicated by the appended claims and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced.

Claims

1. A rail mounting system for securing a wear liner having at least a liner openingtherethrough to a structure comprising:a first plate and a second plate adapted for mounting on the structure, wherein the first plate and the second plate are spaced apart by an outer opening therebetween and an inner opening therebetween;a releasable fastener assembly adapted to cooperate with the wear liner, the first plate and the second plate, wherein the releasable fastener assembly is partially inserted into the wear liner and through the liner opening and outer opening, wherein the releasable fastener assembly comprises:a front portion adapted to be received by a central portion, and an end portion for receiving the front portion such that rotation of the end portion in a first direction causes the front portion to rotate from an installation position to a final position, and further rotation of the end portion in the same direction causes the front portion to be retained within the central portion in the final position to prevent movement of the front portion in the first direction.

2. The rail mounting system according to claim 1, wherein the front portion is abolt comprising an elongate head and a threaded shank, and the central portion is a locking component including a first portion, a second portion, and a central opening for receiving the threaded shank.

3. The rail mounting system according to claim 2, wherein the end portion is a nutconfigured to be received by the threaded shank for displacing the locking component towards the elongate head.

4. The rail mounting system according to claim 2, wherein the first portionincludes a first protrusion and a second protrusion extending from the second portion, wherein the first protrusion and the second protrusion includes a space therebetween to retain the elongate head in the final position.2024353364   10 Jun 20265.     The rail mounting system according to claim 2, wherein the elongate headincludes a length and a width, and its length is substantially parallel to its longitudinal axis in the installation position.

6. The rail mounting system according to claim 2, wherein the elongate headincludes a length and a width, and its length is substantially transverse to its longitudinal axis in the final position.

7. The rail mounting system according to claim 4, wherein each of the firstprotrusion and the second protrusion includes an extension extending upwardly from each protrusion, wherein the extension has an inner face facing inwardly to the central opening, wherein the inner face is radially curved.

8. The rail mounting system according to claim 7, wherein the elongate head hastwo radially curved surfaces at each diagonally opposed end, wherein each radially curved surface is dimensioned to fit the inner faces of the extension in the installation position.

9. The rail mounting system according to claim 1, wherein the structure includesa plurality of mounting openings, and the first plate and the second plate each includes at least a plate opening therethrough in alignment with at least one of the plurality of mounting openings, wherein the plate opening is adapted for receiving a plate fastener to secure the first plate and the second plate to the structure.

10. The rail mounting system according to claim 9, wherein the mounting opening has a countersunk region.

11. The rail mounting system according to claim 2, wherein the second portion includes a base dimensionally bigger than the outer opening such that the base includes a face that abuts an outer face of the outer opening thereby clamping the wear liner to the first plate and the second plate.2024353364   10 Jun 202612. A method for securing a wear liner having at least a liner opening to a structure comprising:providing a first plate and a second plate adapted for mounting on the structure, wherein the first plate and the second plate are spaced apart by an outer opening therebetween and an inner opening therebetween when mounted,providing a wear liner adapted to be secured to the first plate and the second plate, the wear liner including a liner opening therethrough in alignment with the outer opening,providing a releasable fastener assembly adapted to cooperate with the wear liner, the first plate and the second plate, wherein the releasable fastener assembly is partially inserted into the wear liner and into the liner opening and outer opening, wherein the releasable fastener assembly comprises:a front portion adapted to be received by a central portion; andan end portion for receiving the front portion and displacing the central portion to the front portion;the method comprising:inserting the front portion and a first portion of the central portion through the outer opening and into the inner opening of the structure;rotating the end portion in a first direction to cause the front portion to rotate from an installation position to a final position;rotating the end portion further in the same direction to cause the front portion to be displaced towards the end portion and retained within the central portion in the final position to prevent movement of the front portion in the first direction thereby clamping the wear liner to the structure.

13. The method according to claim 12, wherein the front portion is a bolt comprising an elongate head and a threaded shank, and the central portion is a locking component including a first portion, a second portion, and a central opening for receiving the threaded shank.

14. The method according to claim 13, wherein the end portion is a nut configured to be received by the threaded shank for displacing the locking component towards the elongate head.2024353364   10 Jun 202615. The method according to claim 13, wherein the first portion includes a first protrusion and a second protrusion extending from the second portion, wherein the first protrusion and the second protrusion includes a space therebetween to retain the elongate head in the final position.

16. The method according to claim 13, wherein the elongate head includes a length and a width, and its length is substantially parallel to its longitudinal axis in the installation position.

17. The method according to claim 13, wherein the elongate head includes a length and a width, and its length is substantially transverse to its longitudinal axis in the final position.

18. The method according to claim 15, wherein each of the first protrusion and the second protrusion includes an extension extending upwardly from each protrusion, wherein the extension has an inner face facing inwardly to the central opening, wherein the inner face is radially curved.

19. The method according to claim 18, wherein the elongate head has two radially curved surfaces at each diagonally opposed end, wherein each radially curved surface is dimensioned to fit the inner faces of the extensions in the installation position.

20. The method according to claim 12, wherein the structure includes a plurality of mounting openings, and the first plate and the second plate each includes at least a plate opening in alignment with at least one of plurality of mounting openings, wherein the plate opening is adapted for receiving a plate fastener to secure the first plate and the second plate to the structure.

21. The method according to claim 20, wherein the mounting opening has a countersunk region.2024353364   10 Jun 202622. The method according to claim 13, wherein the second portion includes a base dimensionally bigger than the outer opening such that the base includes a face that abuts an outer face of the outer opening thereby clamping the wear liner to the first plate and the second plate.

23. A rail mounting system for securing a wear liner having at least a liner opening therethrough to a structure comprising:a plate adapted for mounting on the structure, wherein the plate includes a slotted opening;a releasable fastener assembly adapted to cooperate with the wear liner and the plate, wherein the releasable fastener assembly is partially inserted into the wear liner and through the liner opening and the slotted opening, wherein the releasable fastener assembly comprises:a front portion adapted to be received by a central portion, and an end portion for receiving the front portion such that rotation of the end portion in a first direction causes the front portion to rotate from an installation position to a final position, and further rotation of the end portion in the same direction causes the front portion to be retained within the central portion in the final position to prevent movement of the front portion in the first direction.

24. A method for securing a wear liner having at least a liner opening to a structure comprising:providing a plate adapted for mounting on the structure, wherein the plate includes a slotted opening,providing a wear liner adapted to be secured to the plate, the wear liner including a liner opening therethrough in alignment with the slotted opening,providing a releasable fastener assembly adapted to cooperate with the wear liner and the plate, wherein the releasable fastener assembly is partially inserted into the wear liner and into the liner opening and the slotted opening, wherein the releasable fastener assembly comprises:a front portion adapted to be received by a central portion; andan end portion for receiving the front portion;the method comprising:2024353364   10 Jun 2026inserting the front portion and a first portion of the central portion through the slotted opening;rotating the end portion in a first direction to cause the front portion to rotate from an installation position to a final position;rotating the end portion further in the same direction to cause the front portion to be displaced towards the end portion and retained within the central portion in the final position to prevent movement of the front portion in the first direction thereby clamping the wear liner to the structure.

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