Patent Application
20150082753
The present disclosure relates to a transport and storage device for a mechanical device, and, more particularly, to transport and storage device for a pulverizer or a pulverizer journal assembly.
Typically, pulverizers or parts thereof, such as journal assemblies, need to be disassembled in order to be easily shipped to manufacturing facilities for maintenance activities. Once the maintenance activities are accomplished the disassembled journal assemblies are transported from the manufacturing facilities to customers' sites in the disassembled form. Once transported to customers' sites, the journal assemblies are reassembled for utilization or if not required immediately stored at the customers' sites. Additionally, assembled pulverizers and/or journal assemblies must contain or be filled with oil during storage to prevent bearing corrosion.
Repetitive assembly and disassembly of pulverizers and/or pulverizer journal assemblies are quite cumbersome and time consuming processes demanding significant man hours, and consequently, significant cost. Further, assembled pulverizers and pulverizer journal assemblies containing or filled with oil require significant care at additional cost during movement, transport and/or storage.
Therefore, pulverizers and/or pulverizer journal assemblies not requiring repetitive disassembly and reassembly for movement, transportation and/or storage are needed. Likewise, pulverizers and/or pulverizer joint assemblies containing or filled with oil without oil leakage during movement, transportation and/or storage are needed.
The present disclosure describes a device and a method of using the device for movement, transport and/or storage of pulverizers or parts thereof, such as journal assemblies, that reduce or eliminate the current need for pulverizer and/or pulverizer journal assembly disassembly and reassembly for movement, transport and/or storage thereof. The subject device and method likewise prevent or eliminate pulverizer and/or pulverizer journal assembly oil leakage associated such movement, transport and/or storage. As such, the subject device and method reduce costs associated with pulverizer or pulverizer journal assembly movement, transportation and/or storage. For purposes of clarity and simplicity the pulverizer or pulverizer parts, such as a journal assembly, are hereinafter referred to simply as the “journal assembly”. The subject device and method are convenient to use, effective in reducing or eliminating repetitive disassembly and reassembly for movement, transportation and/or storage of the journal assembly, and effective in avoiding oil leakage from the journal assembly during movement, transport and/or storage.
In summary, the subject device and method provide for support and protection of the journal assembly during movement, transport and/or storage to prevent damage thereto. Specifically, the subject device and method are useful for movement, transport and/or storage of a journal assembly comprising a journal assembly shaft, a trunnion shaft and a journal opening cover assembled to form a single unit that contains or is filled with a fluid such as oil to prevent bearing corrosion.
The subject device includes a base structure, a frame structure extending on the base structure to define a shaped configuration accommodative to support at least a portion of the journal assembly with the journal assembly shaft supported with a particular orientation on the base structure. The device further includes a plurality of first and second resting members extending aligned and spaced from the frame structure to support the journal assembly. Specifically, the plurality of first resting members and frame structure in combination support the journal opening cover, and the plurality of second resting members supports the trunnion shaft. Additional features and advantages of the subject device will be apparent from the following description and claims.
The subject method includes arranging a journal assembly within a device formed by a base structure, a frame structure extending on the base structure to define a shaped configuration accommodative to support at least a portion of the journal assembly with the journal assembly shaft supported in a particular orientation on the base structure, and a plurality of first and second resting members extending aligned and spaced from the frame structure to support the journal assembly, supporting the journal assembly within the device and supporting the journal assembly shaft in an oil-leakage preventive orientation within the device for stable movement, transport and storage thereof. Further, in accordance with this method, using the plurality of first resting members and frame structure in combination to support the journal opening cover, and using the plurality of second resting members to support the trunnion shaft enables stable movement, transport and storage thereof. Additional features and advantages of the subject method will be apparent from the following description and claims.
The advantages and features of the subject device is further described in more detail with reference to the accompanying drawings, wherein like features are identified with like reference numerals, and in which:
FIGS. 1 through 2A-C illustrate an example of the subject transport and storage device 100 (herein after referred to as ‘device 100’). The device 100 is useful for movement, transport and/or storage of a pulverizer or pulverizer parts, such as a journal assembly 200. As noted previously herein, for purposes of clarity and simplicity the pulverizer or pulverizer parts, such as a journal assembly, are hereinafter referred to simply as the “journal assembly” 200. The journal assembly 200, may be conveniently and economically moved, transported and/or stored utilizing the device 100. As such, the subject journal assembly 200 suitable for movement, transport and/or storage using device 100 includes a journal assembly shaft 210, a trunnion shaft 220 and a journal opening cover 230, each assembled together to form a single unit.
The subject device 100 useful for movement, transport and/or storage of journal assembly 200 includes a base structure 120 (may also be referred to as base 120) and a frame structure 130 (may also be referred to as frame 130) extending from the base 120 to define a shaped configuration supportive of at least a portion of the assembled journal assembly 200.
In accordance to one embodiment of the present disclosure, the base 120 includes a base plate 122 and a pair of spaced apart support channels 124 disposed on the base plate 122. In one embodiment of the present disclosure, the base 120 may be fabricated from carbon steel to provide adequate support and strength during movement, transport and/or storage of the journal assembly 200. However, without departing for the scope of the present disclosure base 120 may be made from any other material of adequate strength and durability for the intended weight to be carried thereby and duration of use, as known in the art.
Further, the frame 130 includes a plurality of horizontal frame members 132 and a plurality of vertical frame members 138. The plurality of horizontal and vertical frame members 132, 138 may be fabricated from carbon steel bars to provide adequate support and strength to the frame 130 for the intended weight carried thereby and duration of use. However, the plurality of horizontal and vertical frame members 132, 138 may likewise be made from any other material of adequate strength and durability for the intended weight to be carried thereby and duration of use, as known in the art.
One set of the plurality of horizontal frame members 132 are arranged horizontally to form an upper horizontal frame support 134. Similarly, another set of the plurality of horizontal members 132 are arranged horizontally to form a lower horizontal frame support 136. Such upper and lower frame supports 134, 136 are arranged in horizontal parallel planes P1, P2, respectively, one above the other in a spaced relationship with respect to each other. Between upper and lower frame supports 134, 136, the plurality of vertical frame members 132 are arranged and coupled thereto to form frame 130. The vertical frame members 132 may be coupled to the upper and lower horizontal frame supports 134, 136 through welding, riveting, nut-bolt coupling, and the like. However, such coupling may likewise be enabled utilizing any other means suitable for the subject weight and purpose, as known in the art. In one embodiment, supporting brackets 139 are utilized for increased support to strengthen the overall frame 130.
The frame 130 formed by the plurality of horizontal and vertical frame members 132, 138 is of a shape supportive of the journal assembly 200 or at least the portion thereof. The frame 130 may be square, rectangular, parallelogram, quadrangle and of any other similarly shaped structure supportive of the journal assembly 200 or at least the portion thereof for stable movement, transport and/or storage use. In another exemplary embodiment, the frame 130 may be unitarily formed by a suitable technique, such as molding, casting, or the like, to form a supportive shaped structure such as that disclosed above, to support the journal assembly 200 during movement, transport and/or storage. Suitable materials for such unitarily formed frame 130 include for example carbon steel and like materials adequate in strength and durability for the intended weight to be carried thereby and duration of use, as known in the art
The device 100 further includes a plurality of first 140 and second 150 resting members arranged to extend from the frame 130 to support the journal assembly 200 in the device 100 during movement, transport and/or storage thereof. The plurality of first resting members 140 extend from the upper horizontal frame support 134. In one embodiment, the plurality of first resting members 140 may be vertical bars 142. Each of the vertical bars 142 include a free end 144 with an angled supporting projection 146 disposed thereon. In an exemplary embodiment, supporting projection 146 may be angled A at approximately 45 degrees to approximately 55 degrees from a plane P3 to be capable of supporting the journal assembly.
Further, the plurality of second resting members 150, are arranged to extend from the upper horizontal frame support 134. In one embodiment, each of the second resting members 150 include brackets 152.
The plurality of first and second resting members 140, 150 are arranged back to back on the upper horizontal frame support 134, wherein the first resting members 140 are of a length L1 greater than the length L2 of the second resting members 150. The length L1 and L2 may vary depending upon specific journal assembly configurations.
The device 100 may also further include a plurality of lifting attachments 160 coupled to the frame 130 for moving the device 100. In one embodiment, the lifting attachments 160 are provided on or secured to the upper horizontal frame support 134. Alternatively, lifting attachments 160 may be arranged at any desired locations over the frame 130 adequate for the intended weight carried thereby, for the duration of use thereof and for the stable lifting and other moving of the device 100.
Referring now specifically to
Further, in order to support the journal assembly 200 more securely, a portion 230b of an elevated bottom end 230c of the journal opening cover 230 is removably attached using fasteners 170 to the frame 130. Specifically, the upper horizontal frame support 134 includes extensions 135 to removably attach the bottom end 230c of journal opening cover 230 utilizing fasteners 170. A plurality of angled supports 165 are also arranged at the corners 134a of the upper horizontal frame support 134. As such, the bottom edge 230d of the journal opening cover 230 is supported by the plurality of angled supports 165 at the corners 134a and through extensions 135 at centerline CL of the journal assembly 200 before lowering down the journal assembly 200 into device 100 for proper alignment and support thereof within device 100.
While the journal assembly 200 is removably secured within device 100, the journal assembly shaft 210 remains free and unsupported in the device 100. In order to support the journal assembly shaft 210, a plurality of wooden, plastic or like shims 166 are provided between the journal assembly shaft 210 and the base plate 122 to minimize movement of the journal assembly shaft 210 within device 100 and to relieve stress on the trunnion shaft 220.
In order to prevent corrosion of bearings (not shown) of the journal assembly shaft 210, internal areas (not shown) of journal assembly shaft 210 may be filled with and contain a fluid F, for example a corrosion preventive fluid such as oil, during movement, transport and/or storage. The journal assembly shaft 210 may be oriented and supported vertically during movement, transport and/or storage to prevent fluid leakages at seals (not shown). The device 100 supports the assembled journal assembly 200 for movement, transport and/or storage thereof with the journal assembly shaft 210 in a vertical orientation to prevent fluid leakage therefrom.
Furthermore, the pair of spaced support channels 124 provide side 210d support to the vertically oriented journal assembly shaft 210 to prevent leakage of fluid within a grinding roll 212 of the journal assembly shaft 210 during movement, transport and/or storage. Additionally, the pair of spaced support channels 124 may be utilized to lift the device 100 with the journal assembly 200 positioned therein. Specifically, a fork (not shown) of a fork truck (not shown) may be inserted into the support channels 124 to lift the device 100 with the journal assembly 200 therein for positioning within a transport vehicle (not shown) to transport the device 100 with the journal assembly 200 therein to a desired location. The device 100, with the journal assembly 200 therein, may be moved and/or lifted using either a fork truck or overhead cranes (not shown).
The subject method of using device 100 includes arranging a journal assembly 200 within the device 100 formed by a base 120, a frame 130 extending on the base 120 to define a shaped configuration accommodative to support at least a portion of the journal assembly 200 with the journal assembly shaft 210 supported in a particular orientation on the base 120, and a plurality of first and second resting members, 140, 150 extending aligned and spaced from the frame 130 to support the journal assembly 200, supporting the journal assembly 200 within the device 100 and supporting the journal assembly shaft 210 in a fluid-leakage preventive orientation within the device 100 for stable movement, transport and storage thereof. Further, in accordance with this method, using the plurality of first resting members 140 and frame 130 in combination to support the journal opening cover 230, and using the plurality of second resting members 150 to support the trunnion shaft 220 enables stable movement, transport and storage thereof. The fluid-leakage preventative orientation of the journal assembly shaft 210 is preferably a vertical orientation within device 100 and end cap covers 137 may be used to protect the trunnion shaft 220. Additional features and advantages of the subject method will be apparent from the following description and claims.
The transport and storage device 100 and the method of using the same provides many significant advantages in terms of reducing effort and time required for moving, transporting and/or storing the assembled journal assembly 200 in a convenient and economical way. Hence, the subject transport and storage device 100 significantly reduces costs associated with the moving, transporting and/or storing the assembled journal assembly 200. Additionally, the journal assembly 200 is loaded directly into the device 100 without requiring repositioning. The trunnion shafts 220 are well protected during movement, transport and/or storage. The journal assembly shaft 210 is arranged in a vertical orientation when the journal assembly 200 is positioned within device 100, allowing movement, transport and/or storage of the journal assembly shaft 210 while filled with a fluid to prevent corrosion of bearings until the journal assembly 200 is installed for use. The device 100 meets all current government standards of width and height restrictions to enable transport thereof by road. Various other advantages and features of the present disclosure are apparent from the above detailed description and appendage claims.
The foregoing descriptions of specific embodiments of the present disclosure have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the present disclosure and its practical application, to thereby enable others skilled in the art to best utilize the present disclosure and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omission and substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present disclosure.
