Patent Application
20200115872
The present disclosure relates to compactor wheels using to compact trash and debris in landfills, and the like. Specifically, the present disclosure relates to a modular steel wireguard with gussets that may be attached to a compactor wheel to help prevent the fouling of an axle to which the compactor wheel is attached.
A common problem with landfill compactors is trapping debris around the wheels. As the compactor continues to move, the debris moves and gets wrapped around the axles. This debris, if not removed, can damage axle assembly and can quickly degrade axle seals. This may necessitate maintenance and undesirable downtime for the compactor.
Various solutions have been previously developed to help prevent the fouling of the axle. For example, a wireguard may be employed that helps prevent debris from entering the opening disposed between the compactor wheel and the axle.
U.S. RE43,381 to Brockway discloses an axle guard system which prevents, or at least substantially inhibits, cable, rope, wire and other refuse and debris from wrapping around the axle of a compaction machine, behind a compactor wheel mounted on the axle, during the operation of the compaction machine in compacting refuse. The compaction machine is of the type used, for example, in landfills or transfer facilities to compact (i.e., increase the density of) the refuse disposed therein. The compactor wheel comprises a hub mountable to the compaction machine axle, a rim mounted around the outer circumference of the hub, a plurality of cleats mounted to the face of the rim, and the axle guard system. The axle guard system can comprise at least one circumferential barrier extending above the face and adjacent the inner circumferential edge of the rim and/or a cleat-free area extending widthwise from the inner circumferential edge of the rim and across the rim toward the outer circumferential edge of the rim (see the Abstract of Brockway).
However, continuous improvement of such barriers so that they may be easily assembled and attached to the compactor wheel in a robust manner is warranted.
A compactor wheel assembly according to an embodiment of the present disclosure may comprise a hub portion including an axle attachment portion; a rim portion including an outer circumferential surface defining a radial direction, a circumferential direction, and a longitudinal axis; a plurality of cleats attached to the outer circumferential surface of the rim portion; and a wireguard attached to the rim portion, the wireguard extending circumferentially about the axle attachment portion being spaced radially away from the axle attachment portion and defining an outer diameter, a rear radially extending surface, and a front radially extending surface. Hardfacing may be applied to the outer diameter, to at least a portion of the front radially extending surface adjacent the outer diameter, and to at least a portion of the rear radially extending surface adjacent the outer diameter.
A wireguard subassembly according to an embodiment of the present disclosure may comprise a first circumferential segment defining a proximate end including a ledge at least partially defining a notch, a second circumferential segment defining a distal end disposed adjacent the proximate end of the first circumferential segment, and a gusset member including a tab at least partially disposed in the notch on top of the ledge.
A wireguard kit according to an embodiment of the present disclosure may comprise a plurality of identically configured gusset members, each gusset member including a top free surface, a bottom attachment surface, a rear surface, and a rearwardly extending tab; and a plurality of identically configured circumferential segments, each circumferential segment defining a notch configured to receive a rearwardly extending tab.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate several embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure. In the drawings:
Reference will now be made in detail to embodiments of the disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. In some cases, a reference number will be indicated in this specification and the drawings will show the reference number followed by a letter for example, 100a, 100b or by a prime for example, 100′, 100″ etc. It is to be understood that the use of letters or primes immediately after a reference number indicates that these features are similarly shaped and have similar function as is often the case when geometry is mirrored about a plane of symmetry. For ease of explanation in this specification, letters and primes will often not be included herein but may be shown in the drawings to indicate duplications of features, having similar or identical function or geometry, discussed within this written specification.
Various embodiments of a compactor wheel assembly, a wireguard subassembly, and a wireguard kit according to various aspects of the present disclosure will now be described. In some embodiments, the various components are made from steel, allowing them to be durable and to be welded together.
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In addition, a wireguard 112 may be attached to the rim portion 106 axially proximate the axle attachment portion 104. The wireguard 112 may extend circumferentially about the axle attachment portion 104 being spaced radially away from the axle attachment portion 104. The wireguard 112 may also define an outer diameter 114, a rear radially extending surface 116, and a front radially extending surface 118.
As best understood with reference to
Focusing on
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As best seen in
A wireguard subassembly 200 according to an embodiment of the present disclosure will now be discussed referring to
The first circumferential segment 202 may define a top circumferential surface 212 and the notch 130 may extend downwardly from the top circumferential surface 212. Similarly, the gusset member 126 may define a bottom notch 214 that is configured to receive the ledge 206 of the first circumferential segment 202 and may include an abutment surface 216 that at least partially defines the bottom notch 214.
The second circumferential segment 208 may be spaced circumferentially away from the first circumferential segment 202, forming a gap 218. In some embodiments, the first and the second circumferential segments 202, 208 contact the tab 134 (i.e. the first and the second circumferential segments 202, 208 touch or nearly touch the tab 134).
Focusing on
Additional welds may be provided in some embodiments, such as a third fillet weld 224 disposed outside of the notch 130 attaching the first circumferential segment 202 to the tab 134, and a fourth fillet weld 226 disposed outside of the notch 130, attaching the second circumferential segment 208 to the tab 134. These welds 224, 226 may be on the front radially extending surface.
A wireguard kit 300 according to yet another embodiment may be provided as follows. The kit 300 may comprise a plurality of identically configured gusset members 302, each gusset member including a top free surface 304, a bottom attachment surface 306, a rear surface 308, and a rearwardly extending tab 310. The kit 300 may further comprise a plurality of identically configured circumferential segments 312, each circumferential segment 312 defining a notch 314 configured to receive a rearwardly extending tab 310.
In some embodiments, each notch 314 is a top notch 316 and each tab 310 is a top tab 318.
Any of the configurations, materials, material properties, and dimensions mentioned herein may be altered in various embodiments of the present disclosure to have different values or characteristics than what has been specifically mentioned herein or shown in the drawings.
In practice, a compactor wheel assembly, a wireguard subassembly, and/or a wireguard kit bearing according to any embodiment described herein may be sold, bought, manufactured or otherwise obtained in an OEM (original equipment manufacturer) or after-market context.
In various embodiments, the gussets may interlock into the wireguard segments to aid in fixturing and weld preparation. Gussets may also aid in fore/aft traction. Once welded on the wheel, hardfacing material may be applied to OD and 1″ down both sidewalls to aid in increasing the wear life.
Various assembly techniques or methods may be employed for creating the compactor wheel assembly and the wireguard subassembly according to various embodiments of the present disclosure.
For example, an assembler may install a segment 20 mm from the inner edge of the outer drum of the wheel. The assembler could then tack the segment, then place one gusset into the notches on the end of the segment and then align the next segment. Tacking and fitting all segments and gussets may continuing until the wireguard subassembly is formed all the way around the wheel. At that point, the welder may stringer (via bottom weld 228) all of the gussets and segments to the outer drum of the wheel.
Alternatively, the aforementioned method may be accomplished on a mandrel before to create the wireguard subassembly before attaching it the compactor wheel. Hence, the subassembly may be sold as a retrofit or replacement component. Or, the kit or the subassembly may be assembled in the field or onsite before being attached to the wheel, etc.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the apparatus and methods of assembly as discussed herein without departing from the scope or spirit of the invention(s). Other embodiments of this disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the various embodiments disclosed herein. For example, some of the equipment may be constructed and function differently than what has been described herein and certain steps of any method may be omitted, performed in an order that is different than what has been specifically mentioned or in some cases performed simultaneously or in sub-steps. Furthermore, variations or modifications to certain aspects or features of various embodiments may be made to create further embodiments and features and aspects of various embodiments may be added to or substituted for other features or aspects of other embodiments in order to provide still further embodiments.
Accordingly, it is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention(s) being indicated by the following claims and their equivalents.
