Slider for supporting the tracks

Abstract

The slider includes a first segment and a second segment. The first segment includes a first upper surface, a first lower surface, and a first inner surface connecting the first upper surface to the first lower surface. The first upper surface is configured to support the track. The first inner surface includes a first component of an attachment mechanism. The second segment includes a second upper surface, a second lower surface, and a second inner surface connecting the second upper surface to the second lower surface. The second upper surface is configured to support the track. The second inner surface includes a second component of an attachment mechanism, which is configured to be removably attached to the first component.

Description

Technical Field

[0001] The present invention generally relates to an arrangement of slider assemblies for a chassis, and for example to a slider for supporting tracks of a chassis. Background Technology

[0002] In industries such as construction, mining, and forestry, machines can utilize tracks to distribute their weight across the ground surface. Therefore, compared to wheeled machines, these machines can be configured to traverse ground surfaces with a lower likelihood of getting stuck. In such machines, the underframe may include a sprocket at one end, an idler wheel at the opposite end, and a slider arrangement mounted therebetween to support and guide the tracks. In some cases, the slider arrangement may be designed in a modular rather than cohesive manner to address the discreteness that arises over time. Thus, the slider arrangement may include multiple sliders with different designs and different lifespans. As a result, the slider arrangement can have considerable inventory costs and requires relatively complex and frequent slider replacements, increasing machine downtime.

[0003] U.S. Patent No. 10,543,876 discloses a track support rail for a track assembly used in a slidingly supported machine. The track support rail includes a body having a first body end, a second body end, a crown, and an upper support surface. The body extends along a longitudinal axis between the first body end and the second body end. The crown is disposed along the longitudinal axis between the first body end and the second body end. The upper support surface extends along the longitudinal axis between the first body end and the second body end. The upper support surface includes a first curved segment and a second curved segment. The first curved segment has a first curved shape and extends from the first body end toward the crown of the body. The second curved segment has a second curved shape and extends from the second body end toward the crown of the body. The first curved shape differs from the second curved shape.

[0004] The slider of the present invention solves one or more of the above-mentioned problems and / or other problems in the art. Summary of the Invention

[0005] In some embodiments, a split slider includes a first segment having a first upper surface, a first lower surface, and a first inner surface connecting the first upper surface to the first lower surface, wherein the first upper surface is configured to support a track, and the first inner surface includes a first component of an attachment mechanism; and a second segment having a second upper surface, a second lower surface, and a second inner surface connecting the second upper surface to the second lower surface, wherein the second upper surface is configured to support a track, and the second inner surface includes a second component of an attachment mechanism configured to be removably attached to the first component of the attachment mechanism.

[0006] In some embodiments, an end slider assembly includes an end support member attached to a chassis frame at a location adjacent to a sprocket or idler wheel; and an end slider configured to support a track, wherein the end slider includes: a height greater than the height of the end support member; a width greater than the width of the end support member; and a length greater than the length of the end support member, and the end slider has a first radius of curvature and a second radius of curvature greater than the first radius of curvature along its length.

[0007] In some embodiments, a slider arrangement includes at least one end slider having a first end segment and a second end segment removably attached to the first end segment, wherein the first end segment and the second end segment together form an upper surface of the at least one end slider configured to support a track, wherein the upper surface of the at least one end slider includes a first radius of curvature and a second radius of curvature greater than the first radius of curvature along the longitudinal direction of the slider arrangement; and at least one center slider having a first center segment and a second center segment removably attached to the first center segment, wherein the first center segment and the second center segment together form an upper surface of the at least one center slider configured to support a track, wherein the upper surface of the at least one center slider is substantially linear along the longitudinal direction of the slider arrangement. Attached Figure Description

[0008] Figure 1 This is a side view of an exemplary underframe including the tracks.

[0009] Figure 2 It is an isometric view of the underframe aligned with the individual track plates of the tracks.

[0010] Figure 3 This is an isometric view of the end slider assembly and the center slider assembly of the base frame.

[0011] Figure 4 This is a side view of the first segment of the end slider assembly.

[0012] Figure 5 It is along Figure 4 The first section view of the slider taken from line 5-5.

[0013] Figure 6 This is a side view of the second segment of the end slider.

[0014] Figure 7 It is along Figure 6 The second section view of the slider taken from line 7-7.

[0015] Figure 8 This is a side view of the end slider in the attached state.

[0016] Figure 9 It is along Figure 8The cross-sectional view of the attached end slider, taken from line 9-9. Detailed Implementation

[0017] This invention relates to a slider for supporting tracks, applicable to machines with tracked underframes. For example, the machine may be a rope shovel, a hydraulic mining shovel, an excavator, a forestry machine, or other types of machinery.

[0018] To simplify the following description, the same reference numerals may be used to denote the same features. The figures may not be to scale.

[0019] Figure 1 An exemplary underframe 100 is depicted. As described above, the underframe 100 is configured to support machinery (not shown), such as a rope shovel, hydraulic mining shovel, excavator, forestry machinery, or other types of machinery. The underframe 100 includes an arrangement of a frame 102, tracks 104, sprockets 106, idler pulleys 108, a plurality of rollers 110, and a slider assembly 112. The frame 102 is a structure that supports the arrangement of the tracks 104, sprockets 106, idler pulleys 108, a plurality of rollers 110, and slider assembly 112. The frame 102 includes a rear end 114, a front end 116, a lower end 118, and an upper end 120. The rear end 114 is opposite to the front end 116. The lower end 118 connects the rear end 114 to the front end 116 and is opposite to the upper end 120. In some embodiments, the frame 102 may include a recoil mechanism (not shown) to adjust the tension in the tracks 104. The track 104, which can be formed by multiple track plates 122, is a ground engagement device that surrounds the frame 102 and propels the machine.

[0020] A sprocket 106, rotatably mounted to the rear end 114 of frame 102, is configured to drive track 104 around frame 102. An idler pulley 108 is mounted to the front end 116 of frame 102 and configured to guide track 104 around it. A plurality of rollers 110 are rotatably mounted to the lower end 118 of frame 102 to guide track 104 between sprocket 106 and idler pulley 108. The arrangement of slider assemblies 112, which will be described in detail below, includes a pair of end slider assemblies 124 and a plurality of center slider assemblies 126, which are mounted to the upper end 120 of frame 102 to support and guide track 104 between sprocket 106 and idler pulley 108. The end slider assembly 124 of the pair of end slider assemblies 124 is mounted to the upper end 120 of frame 102 at a position adjacent to idler pulley 108. One end slider assembly 124 of a pair of end slider assemblies 124 is mounted to the upper end 120 of the frame 102 at a position adjacent to the sprocket 106. The end slider assembly 124 is substantially identical to the other end slider assembly 124. A plurality of center slider assemblies 126 are mounted to the upper end 120 of the frame 102 at intervals between the end slider assemblies 124 and the other end slider assembly 124. For example, the space between adjacent center slider assemblies 126 of the end slider assembly 124 and the plurality of center slider assemblies 126 has a length in the range of approximately 350 mm to approximately 500 mm. The same spacing may occur between the remaining slider assemblies in the arrangement of slider assemblies 112. When constructed and configured, the arrangement of slider assemblies 112 forms a mirror arrangement.

[0021] As indicated above, provide Figure 1 As an example. Other examples may differ from those regarding... Figure 1 The described example. For instance, the number and arrangement of components may differ. Figure 1 The quantity and arrangement are shown. Therefore, with Figure 1 Compared to those shown, additional components, fewer components, different components, components of different shapes, components of different sizes, and / or components with different arrangements may exist. For example, the multiple rollers 110 may include different numbers of rollers 110 (e.g., eight, ten, etc.). As a further example, the arrangement of the slider assembly 112 may include different numbers of center slider assemblies 126 (e.g., two, four, etc.).

[0022] Figure 2A base frame 100 aligned with one of the multiple track pads 122 is depicted. The track pads 122 have a structure substantially identical to the remaining track pads 122, including an inner contact surface 202 and an outer contact surface 204 opposite to the inner contact surface 202. As described below, the inner contact surface 202 is configured to slidably contact the arrangement of idler wheels 108, multiple rollers 110, sprockets 106, and slider assemblies 112 as the track pad 122 travels along an elliptical path 206 surrounding the frame 102. The outer contact surface 204 is configured to simultaneously slidably engage the ground surface.

[0023] To simplify the description of the arrangement of slider assembly 112, the structure of end slider assembly 124 and a single center slider assembly 126 (hereinafter referred to as center slider assembly 126) will be described below. It should be understood that the described structure applies to the other end slider assembly 124 and the remaining center slider assemblies 126 of the arrangement of center slider assembly 126, respectively.

[0024] End slider assembly 124 includes end slider 208 and end support member 210. End slider 208 includes an upper surface 212 configured to slidably contact and support the inner contact surface 202 of track plate 122. To support track plate 122, end slider 208 of end slider assembly 124 may have a height greater than the height of end support member 210, a width greater than the width of end support member 210, and a length greater than the length of end support member 210. For example, relative to end slider 208 of end slider assembly 124, the height may be in the range of approximately 400 mm to approximately 500 mm, the width may be in the range of approximately 200 mm to approximately 300 mm, and the length may be in the range of approximately 1700 mm to approximately 1800 mm. The ratio of the height of end slider 208 of end slider assembly 124 to the total height of end slider assembly 124 may be in the range of approximately 0.75 to approximately 0.95. Other dimensions and / or ratios may also be considered.

[0025] The end support member 210 of the end slider assembly 124 is configured to support the end slider 208. The end support member 210 includes a lower surface 214 opposite to the upper surface 212 and is configured to contact the upper end 120 of the frame 102 when the end support member 210 is mounted to the frame 102. In some embodiments, to ensure that the end slider assembly 124 is securely attached to the frame 102, the end support member 210 may be secured to the frame 102 via one or more fasteners (e.g., bolts, screws, latches, clips, snap rings, welding, and / or other types of fasteners).

[0026] The center slider assembly 126 includes a center slider 216 and a center support member 218. The center slider 216 includes an upper surface 220 configured to slidably contact and support the inner contact surface 202 of the track plate 122. To support the track plate 122, the center slider 216 of the center slider assembly 126 may have a width greater than the width of the center support member 218 and a length greater than the length of the center support member 218. For example, for the center slider 216 of the center slider assembly 126, the width may be in the range of approximately 200 mm to approximately 300 mm, and the length may be in the range of approximately 1100 mm to approximately 1200 mm. The height of the center slider 216 of the center slider assembly 126 may be in the range of approximately 200 mm to approximately 300 mm. The ratio of the height of the center slider 216 of the center slider assembly 126 to the total height of the center slider assembly 126 may be in the range of approximately 0.35 to approximately 0.55. Other dimensions and / or ratios may also be considered.

[0027] A central support member 218 of the central slider assembly 126 is configured to support the central slider 216. The central support member 218 includes a lower surface 222 opposite to the upper surface 220 and is configured to contact the upper end 120 of the frame 102 when the central support member 218 is mounted to the frame 102. In some embodiments, to ensure that the central slider assembly 126 is securely attached to the frame 102, the central support member 218 may be secured to the frame 102 via one or more fasteners (e.g., bolts, screws, latches, clips, snap rings, welding, and / or other types of fasteners).

[0028] To guide the track plate 122 along the elliptical path 206, the upper surface 212 of the end slider assembly 124 and the upper surface 220 of the center slider assembly 126 are sized and shaped in a manner complementary to the inner contact surface 202 of the track plate 122. Therefore, the widths of the upper surfaces 212 and 220, which are the same as the widths of the end slider 208 and the center slider 216 respectively, are substantially equal to the width of the inner contact surface 202. Furthermore, the upper surfaces 212 and 220 may be convex in the transverse direction perpendicular to the elliptical path 206, and the inner contact surface 202 may be correspondingly concave in the transverse direction.

[0029] Because the end slider 208 is located at the junction between the curved portion 224 and the linear portion 226 of the elliptical path 206, it is subjected to impacts from the track plate 122 in multiple directions. Conversely, the center slider 216 is positioned along the linear portion 226 of the elliptical path 206 and therefore receives less impact from the track plate 122. To have a service life substantially equal to that of the center slider 216 (e.g., in the range of approximately 2,000 hours to approximately 5,000 hours), the end slider 208 can be heavier and more robust than the center slider 216. For example, the weight of the end slider 208 can be in the range of approximately 1,000 kg to approximately 1,100 kg. The weight of the center slider 216 can be in the range of approximately 400 kg to approximately 500 kg. To withstand forces under various environmental conditions, the end slider 208 and the center slider 216 can be made of manganese steel or another type of metal with high impact strength and / or wear resistance. Other weights and / or materials should be taken into account.

[0030] To smoothly transition the elliptical path 206 between the curved portion 224 and the linear portion 226 (e.g., when the track plate moves around the idler wheel 108 or sprocket 106), the upper surface 212 of the end slider 208 has an asymmetrical shape along its length. Specifically, the upper surface 212 has a first radius of curvature and a second radius of curvature along its length, the first radius of curvature being closer to the curved portion 224 of the elliptical path 206, and the second radius of curvature being closer to the linear portion 226 of the elliptical path 206. The second radius of curvature is larger than the first radius of curvature. Since the center slider 216 is positioned along the linear portion 226 of the elliptical path 206, the upper surface 220 of the center slider 216 is substantially linear.

[0031] In use, the teeth 228 of the sprocket 106 can engage with the track plate 122 to push the track plate 122 in any direction along the elliptical path 206. For example, in a clockwise direction along the elliptical path 206, the sprocket 106 pushes the track plate 122 toward a plurality of rollers 110. The outer surfaces 230 of the plurality of rollers 110 contact the inner contact surfaces 202 of the track plate 122 to guide the track plate 122 along the ground surface. The outer surfaces 230 of the rollers 110 have substantially the same width and convex curvature as the upper surfaces 212, 220 of the end sliders 208 and the center slider 216. When track plate 122 reaches idler wheel 108, the outer surface 232 of idler wheel 108 contacts the inner contact surface 202 of track plate 122 to guide track plate 122 around the curved portion 224 of elliptical path 206. The outer surface 232 of idler wheel 108 also has substantially the same width and convex curvature as the upper surfaces 212, 220 of end slider 208 and center slider 216. Due to the increased radius of curvature of the upper surface 212 of end slider 208, track plate 122 slides smoothly along the upper surface 212 of end slider 208. Then, before returning to sprocket 106, track plate 122 slides along the upper surfaces 220 of the plurality of center sliders 216 and along the decreasing radius of curvature of the other end slider 208. It should be understood that these steps occur in reverse order when sprocket 106 drives track plate 122 in a counterclockwise direction.

[0032] As indicated above, provide Figure 2 As an example. Other examples may differ from those regarding... Figure 2 The described example. For instance, the number and arrangement of components may differ. Figure 2 The quantity and arrangement are shown. Therefore, with Figure 2 Compared to those shown, there may be additional components, fewer components, different components, components of different shapes, components of different sizes, and / or components with different arrangements.

[0033] The following will be combined Figure 3-9 As described, in some embodiments, at least one slider in the opposing slider assembly 124 and / or the plurality of central slider assemblies 126 may be formed by a plurality of removably attached components to facilitate the installation and / or removal of at least one slider.

[0034] Figure 3End slider assembly 124 and center slider assembly 126 are depicted. As described above, it should be understood that the following description also applies to the remaining slider assemblies of slider assembly 112. The end slider 208 of end slider assembly 124 has a first segment 302 and a second segment 304. The first segment 302 includes a first upper surface 306, a first lower surface 308, and a first inner surface 310 connecting the first upper surface 306 to the first lower surface 308. The first inner surface 310 of end slider assembly 124 may be substantially planar. The second segment 304, substantially identical to the first segment 302, includes a second upper surface 312, a second lower surface 314, and a second inner surface 316 connecting the second upper surface 312 to the second lower surface 314. The substantially planar second inner surface is configured to be removably attached to the first inner surface 310. The first upper surface 306 and the second upper surface 312 together define the upper surface 212 of end slider 208. The first lower surface 308 and the second lower surface 314 together define the lower surface 318 of the end slider 208, which is spaced apart from the lower surface 214 of the end support member 210 when the end slider 208 is attached to the end support member 210. To attach the end slider 208 to the end support member 210, the lower surface 318 of the end slider 208 may include an opening 320 configured to receive a portion of the end support member 210. Once the end slider 208 and the end support member 210 are thus engaged, the end slider 208 can be removably secured to the end support member 210 via one or more fasteners (e.g., bolts, screws, latches, clips, snap rings, welding, and / or other types of fasteners).

[0035] The center slider 216 of the center slider assembly 126 also has a first segment 322 and a second segment 324. The first segment 322 includes a first upper surface 326, a first lower surface 328, and a first inner surface 330 connecting the first upper surface 326 to the first lower surface 328. The first inner surface 330 may be substantially planar. The second segment 324, which is substantially the same as the first segment 322, includes a second upper surface 332, a second lower surface 334, and a second inner surface 336 connecting the second upper surface 332 to the second lower surface 334. The substantially planar second inner surface 336 is configured to be removably attached to the first inner surface 330. The first upper surface 326 and the second upper surface 332 together define the upper surface 220 of the center slider 216. The first lower surface 328 and the second lower surface 334 together define the lower surface 338 of the center slider 216, which is spaced apart from the lower surface 222 of the center support member 218 when the center slider 216 is attached to the center support member 218. To attach the center slider 216 to the center support member 218, the lower surface 338 of the center slider 216 may include an opening 340 configured to receive a portion of the center support member 218. Once the center slider 216 and the center support member 218 are thus engaged, the center slider 216 can be removably secured to the center support member 218 via one or more fasteners (e.g., bolts, screws, latches, clips, snap rings, welding, and / or other types of fasteners).

[0036] As indicated above, provide Figure 3 As an example. Other examples may differ from those regarding... Figure 3 The described example. For instance, the number and arrangement of components may differ. Figure 3 The quantity and arrangement are shown. Therefore, with Figure 3 Compared to those shown, additional components, fewer components, different components, components of different shapes, components of different sizes, and / or components with different arrangements may exist. For example, at least one of the end slider assembly 124 and the center slider assembly 126 may include a slider having more than two segments (e.g., four segments, six segments, etc.). As a further example, the inner surface may be non-planar, but rather have complementary shapes such as serrations, curvature, or other shapes.

[0037] Figure 4-9 An exemplary dovetail attachment mechanism 400 for the end slider 208 is depicted. It should be understood that the center slider 216 can also utilize the dovetail attachment mechanism 400 as described below. Figure 4-5As shown, the first inner surface 310 of the first segment 302 of the end slider 208 includes a pair of dovetail notches 402, which together form a component of the dovetail attachment mechanism 400. Each of the pair of dovetail notches 402 includes an insertion portion 404 having a substantially rectangular cross-sectional shape and a fixing portion 406 having a substantially trapezoidal shape. Figure 6-7 As shown, the second inner surface 316 of the second segment 304 of the end slider 208 includes a pair of dovetail protrusions 408, which together form complementary components of the dovetail attachment mechanism 400. Each of the pair of dovetail protrusions 408 has a substantially trapezoidal cross-sectional shape, which is substantially the same as the substantially trapezoidal shape of the insertion portion 404 of the pair of dovetail notches 402.

[0038] Therefore, in use, the pair of dovetail protrusions 408 can be inserted into the insertion portions 404 of the pair of dovetail recesses 402 respectively. Once the pair of dovetail recesses 402 receive the pair of dovetail protrusions 408, the first segment 302 and the second segment 304 of the end slider 208 can slide relative to each other, so that the pair of dovetail protrusions 408 slide into the fixing portions 406 of the pair of dovetail recesses 402. Figure 8-9 As shown, once the dovetail attachment mechanism 400 is engaged in this manner, the first segment 302 and the second segment 304 are in an attachment state.

[0039] As indicated above, provide Figures 4 to 9 As an example. Other examples may be related to... Figures 4 to 9 The descriptions differ. For example, the number and arrangement of components may differ from those described. Figures 4 to 9 The quantities and arrangements shown are different. Therefore, with Figures 4 to 9 Compared to those shown, additional components, fewer components, different components, components of different shapes, components of different sizes, and / or components with different arrangements may exist. As an example, the dovetail attachment mechanism 400 may include different numbers of dovetail protrusions and dovetail notches (e.g., one, three, four, etc.). As another example, the first segment 302 (and correspondingly, the second segment 304) may include a combination of at least one dovetail protrusion and at least one dovetail notch. As another example, the end slider 208 and / or the center slider 216 may utilize different types of attachment mechanisms, such as one or more magnets, snap-fit ​​fasteners (e.g., decorative molded fasteners), clips, or other types of fasteners. Additionally or alternatively, the end slider 208 and / or the center slider 216 may include a locking mechanism (e.g., a quarter-turn lock or another type of locking mechanism) to prevent relative movement between the first segment 302 and the second segment 304 until the locking mechanism disengages.

[0040] Industrial applicability

[0041] The end slider 208 and center slider 216 of the present invention are particularly suitable for machines with tracked underframes, such as underframe 100. The machine may be a rope shovel, a hydraulic mining shovel, an excavator, a forestry machine, or other types of machine.

[0042] Because the end slider 208 and center slider 216 of the present invention are adhesively designed as part of the arrangement of the slider assembly 112, the end slider 208 and center slider 216 have substantially equal service lives, which simplifies replacement and minimizes machine downtime. Additionally, due to the robust design and variable curvature of the end slider 208, it exhibits improved wear resistance compared to other types of end sliders. Because the arrangement of the slider assembly 112 includes only two types of sliders (end slider 208 and center slider 216), it also benefits from reduced inventory costs and simplified slider installation and / or replacement. In embodiments where the end slider 208 and / or center slider 216 are made separable (e.g., by including a dovetail attachment mechanism 400 or another type of attachment mechanism), the end slider 208 and center slider 216 are further facilitated in installation and / or replacement, particularly in heavy-duty applications where the weight of the components may pose a challenge.

[0043] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. Modifications and variations can be made based on the foregoing disclosure, or modifications and variations can be derived from practice of the embodiments. Furthermore, any embodiments described herein can be combined unless the foregoing disclosure expressly provides for reasons why one or more embodiments cannot be combined. Even if specific combinations of features are recited in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various embodiments. Although each dependent claim listed below may be directly subordinated to only one claim, the disclosure of various embodiments includes each dependent claim combined with all other claims in the group of claims.

[0044] As used herein, the terms “a,” “an,” and “a group” are intended to include one or more items and may be used interchangeably with “one or more.” Further, as used herein, the article “the” is intended to include one or more items referenced in conjunction with the article “the” and may be used interchangeably with “the one or more.” Further, as used herein, the terms “comprises,” “comprising,” “having,” “including,” or other variations thereof are intended to cover non-exclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but may also include other elements not expressly listed. Furthermore, in this invention, relative terms such as “about,” “generally,” “substantially,” and “approximately” are used to indicate possible variations of ±10% in the values, unless otherwise apparent to a person skilled in the art in the context. Further, unless expressly stated otherwise, the phrase “based on” is intended to mean “at least partially based on.” Furthermore, as used herein, the term "or," when used in series, is intended to be inclusive and may be used interchangeably with "and / or" unless otherwise expressly stated (e.g., if used in combination with "either one" or "only one"). Further, for ease of description, spatially relative terms such as "below," "under," "above," "upper," etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. Spatially relative terms are intended to cover different orientations of devices, apparatuses, and / or elements in use or operation other than those depicted in the figures. Devices may be oriented in other ways (rotated 90 degrees or otherwise), and the spatially relative descriptors used herein shall be interpreted accordingly.

Claims

1. A split slider, comprising: The first segment has a first upper surface, a first lower surface, and a first inner surface connecting the first upper surface to the first lower surface, wherein... The first upper surface is configured with support tracks (104), and The first inner surface includes a first component of the attachment mechanism; as well as The second segment has a second upper surface, a second lower surface, and a second inner surface connecting the second upper surface to the second lower surface, wherein... The second upper surface is configured to support the track (104), and The second inner surface includes a second component of the attachment mechanism, which is configured to be removably attached to the first component of the attachment mechanism.

2. The split slider of claim 1, wherein when the second component of the attachment mechanism is removably attached to the first component of the attachment mechanism, the second inner surface of the second segment is adjacent to the first inner surface of the first segment.

3. The split slider according to any one of claims 1-2, wherein the attachment mechanism is a dovetail attachment mechanism (400), the first component is a dovetail notch (402), and the second component is a dovetail protrusion (408).

4. The split slider according to any one of claims 1-3, wherein in the longitudinal direction of the split slider, The first upper surface has a first radius of curvature and a second radius of curvature greater than the first radius of curvature; and The shape of the second upper surface is substantially the same as that of the first upper surface.

5. The split slider according to any one of claims 1-3, wherein the first upper surface and the second upper surface are substantially linear in the longitudinal direction of the split slider.

6. An end slider assembly (124), comprising: An end support member (210) is attached to the base frame (102) at a position adjacent to the sprocket (106) or idler wheel (108); as well as End slider (208), which is configured to support track (104), wherein The end slider (208) includes: The height is greater than the height of the end support member (210). Width, which is greater than the width of the end support member (210), and The length is greater than the length of the end support member (210), and The end slider (208) has a first radius of curvature and a second radius of curvature greater than the first radius of curvature along its length. The end slider (208) includes a first segment (302) and a second segment (304) configured to be removably attached to the first segment (302) via an attachment mechanism.

7. The end slider assembly (124) according to claim 6, wherein the end slider (208) is asymmetrical along its length.

8. The end slider assembly (124) according to any one of claims 6-7, wherein the attachment mechanism is a dovetail attachment mechanism.

9. The end slider assembly (124) according to any one of claims 6-8, wherein The width of the end slider (208) is in the range of 200 mm to 300 mm; and The length of the end slider (208) is in the range of 1700 mm to 1800 mm.

10. The end slider assembly (124) according to any one of claims 6-9, wherein the weight of the end slider (208) is in the range of 1,000 kg to 1,100 kg.

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