The present application relates to a lifting assembly and methods for lifting a generator enclosure.
A generator enclosure and a generator therein may need to be lifted during a variety of operations. For example, after the generator enclosure and generator have been manufactured, the generator enclosure may be lifted, for example, onto the bed of a semi-truck for shipment of the generator. When the generator reaches its destination, the generator enclosure may be lifted again for installation of the generator. In other operations, only a portion of a generator enclosure may need to be lifted. For example, only a roof panel of the generator enclosure may be lifted to perform maintenance on the generator or replace parts of the generator.
Exemplary embodiments of the present disclosure are described herein with reference to the following drawings, according to an exemplary embodiment.
Before turning to the figures, which illustrate certain exemplary embodiments in detail, it should be understood that the present disclosure is not limited to the details and methodology set forth in the detailed description or illustrated in the figures. It should be understood that the terminology used herein is for the purpose of description only and should not be regarded as limiting.
Described herein are devices, systems, and methods for lifting a generator enclosure or a portion of a generator enclosure, for example, a roof panel of a generator enclosure. In some examples, the generator enclosure described herein may contain an engine and/or a generator (i.e., a genset). In other examples, the generator enclosure may not include a genset.
A lifting assembly according the to present disclosure may include one or more lifting pins and one or more locking assemblies attached to a generator enclosure. The lifting pins and the lock assemblies may be provided in equal numbers. The lifting pin may include a lift hook and a shaft attached to and extending away from the lift hook. The lifting pin may further include one or more keys attached to the shaft. The lock assembly may include one or more keyholes in the generator enclosure configured to receive the shaft and the key(s) (e.g., allow the shaft and the key(s) to move through the keyhole) when the key(s) are in a predetermined position (e.g., a specific radial position) and prevent the shaft and the key(s) from moving through the keyhole when the key(s) are in a position other than the predetermined position.
Accordingly, one or more lifting pins may be inserted into the keyhole(s) of the one or more lock assemblies. The one or more lifting pins may be inserted into the keyhole(s) of the one or more lock assemblies while the lifting pins are in the predetermined position. The one or more lifting pins may then be rotated to a position other than the predetermined position locking the one or more lifting pins within the one or more lock assemblies and the generator enclosure may be lifted using the lift hooks of the lifting pins.
The lifting assemblies and methods of lifting a generator enclosure disclosed herein allow the lifting points of both the generator enclosure and a roof panel of the generator enclosure to be consolidated near the top of the generator enclosure. The lifting assemblies of the present disclosure allow the lifting points of the generator enclosure to be moved from the side(s) of the generator enclosure to the top of the generator enclosure.
The shape of the lift hook 310 may vary. In some examples, and as illustrated in
The hook opening 311 may be configured to receive an implement for lifting the generator enclosure. For example, the hook opening 311 may be configured to receive a hook (e.g., an eye hook, clevis hook, swivel hook, etc.), shackle (e.g., bow shackle, D shackle, etc.), chain, rope, or the like. The implement for lifting may extend through the hook opening 311 and may be secured to the hook opening 311. The implement for lifting may be coupled to a lifting machine, such as a crane, for lifting the generator enclosure.
The shaft 320 is attached to and extends away from the lift hook 310. In some examples, the lift hook 310 may including a shaft opening 312 configured to receive the shaft 320. An end of the shaft 320 (e.g., shaft first end 323) may be inserted into the shaft opening 312. The shaft 320 may be welded to the lift hook 310. In some examples, the shaft 320 may include a keyway 321. The keyway 321 may be formed in a shaft outer surface 322 and extend along the length of the shaft 320. The one or more keys 330, 340 may be disposed within the keyway 321 of the shaft 320. The shaft 320 may have a circular cross section including a keyway 321 formed therein. The shaft 320 may be comprised of a metal or metal alloy. For example, the shaft 320 may be comprised of aluminum alloy, cast iron, steel, or the like.
The one or more keys 330, 340 are attached to the shaft 320. The one or more keys 330, 340 may be attached to the shaft 320 so as to be disposed within the keyway 321. The one or more keys 330, 340 may be attached to the shaft 320 within the keyway 321 so as to protrude beyond a radius of the shaft. The number of keys 330, 340 attached to the shaft may vary. In some examples, as illustrated in
The first key 330 may be attached to the shaft at a shaft second end 324 (e.g., an end of the shaft 320 opposite the lift hook 310). The first key 330 may be configured to move through a keyhole in the lock assembly when the first key is in a predetermined position (e.g., a specific radial position). The first key 330 may be configured to prevent the shaft 320 and the first key 330 from moving through the keyhole when the first key 330 is in a position other than the predetermined position. The first key 330 may contact the lock assembly 400 preventing the lifting pin 300 from being withdrawn from the lock assembly 400 when the first key is in another position other than the predetermined position.
The second key 340 may be attached to the shaft 320 at the shaft first end 323 so as to be adjacent to the lift hook 310. The second key 340 may have a larger cross-sectional area than the first key 330. The second key 340 may be configured to abut a face of the generator enclosure after the first key has passed through the keyhole, preventing the first key 330 and the shaft 320 from extending further into the keyhole. The second key 340 may be attached (e.g., welded) to the shaft 320 and the lift hook 310.
The rectangular hollow section 430 may be comprised of a metal or a metal alloy. For examples, the rectangular hollow section 430 may be comprised of aluminum alloy, cast iron, steel, or the like. The rectangular hollow section 430 may be attached to the generator enclosure 100 (e.g., beams 102) using a plurality of nuts 431 and bolts 432. The plurality of bolts 432 may extend through the generator enclosure 100, for example, through a beam 102 of the generator enclosure and through a bolt hole formed in the rectangular hollows section 430. A nut 431 may be screwed to each bolt, attaching, or securing the rectangular hollow section 430 to the generator enclosure 100. In some embodiments, a washer 433 may be disposed between each bolt 432 and the generator enclosure 100.
The lock assembly 400 includes at least one keyhole 410, 420 therein. Each of the at least one keyhole 410, 420 may be configured to receive at least one key 330, 340 and the shaft 320 (e.g., allow the shaft 320 and the key 330, 340 to move through the keyhole) when the at least one key 330, 340 is in a predetermined position. Each of the at least one keyhole 410, 420 may be configured to prevent the shaft 320 and the at least one key 330, 340 from moving through the at least one keyhole when the at least one key 330, 340 is in another position other than the predetermined position.
In some examples, the predetermined position of the at least one key 330, 340 may be a horizontal or substantially horizontal position on one side of the shaft 320. As illustrated in
The predetermined position of the at least one key 330, 340 and the location (e.g., radial location) of the notch portion 411, 421 may vary. In some examples the predetermined position of the at least one key 330, 340 and the location of the notch portion 411, 421 may be at 450 with respect to a horizontal or vertical axis. In other examples, the predetermined position of the at least one key 330, 340 and the notch portion 411, 421 may be a vertical position above or below the shaft 320 or the circular portion 412, 422, respectively.
In some examples, the at least one keyhole 410, 420 may have a shape corresponding to a cross section of the shaft and the at least one key 330, 340. The at least one keyhole 410, 420 may include a first keyhole 410 and a second keyhole 420. The first keyhole 410 and the second keyhole 420 may be disposed across from one another. In some examples, the first keyhole 410 and the second keyhole 420 may be disposed across from one another on parallel sides of the rectangular hollow section 430. A line through a central axis of the first keyhole 410 may be coincident with a line through a central axis of the second keyhole 420.
In some examples, the lifting pin 300 may include two or more keys 330, 340 and only one of the keys, e.g., first key 330, may be inserted through the one or more keyholes 410, 420. A second key, e.g., second key 340, may be larger, for example, protruding further away from the shaft 320, and be configured to contact a surface 110 of the generator enclosure 100 (see
As illustrated in
The enclosure fastener 130 may be a bolt, a screw, or a rivet. The enclosure fastener 130 may be made of a metal or a metal alloy. The enclosure fastener 130 for example a bolt may secure or attach the roof panel 104 of the generator enclosure 100 to the remainder of the generator enclosure (i.e., the remainder of the columns 101 and beam 102 forming the generator enclosure 100). The fastener opening 120 may be configured to provide access to the enclosure fastener 130 so that the roof panel 104 may be attached to or detached from the remainder of the generator enclosure 100. For example, the roof panel 104 may be attached to or detached from the remainder of the generator enclosure 100 by screwing or unscrewing a bolt comprising the enclosure fastener 130. In some examples, the generator enclosure may include a plurality of fastener openings 120 and a plurality of enclosure fasteners 130 for securing the roof panel 104 to the remainder of the generator enclosure 100. In some examples, the enclosure fasteners 130 may be removed and the lifting assembly 200 may be configured to lift only the roof panel of the generator enclosure 100.
The surface 110 and/or the roof panel 104 of the generator enclosure 100 may include a lifting pin opening. The lifting pin opening may be configured to provide access to the one or more keyholes 410, 420 of the lock assembly 400. Accordingly, a shaft 320 and key 330, 340 of the lifting pin 300 may be inserted through the lifting pin opening into one or more keyholes in the lock assembly. In some examples, for example, when the roof panel includes a hollow structural beam 102, a lifting pin opening may be disposed in each of two or more walls of the beam 102 disposed across from one another. In other examples, as discussed below with respect to
In some examples, the lifting pin opening may have the same shape as the one or more keyholes 410, 420. In other examples, the lifting pin opening may have a shape that is larger than the one or more keyholes so that the shaft 320 and one or more keys 330, 340 of the lifting pin 300 may pass through the lifting pin opening.
The open side 106 of the c-channel 105 may be configured to receive the shaft 320 and the at least one key 330, 340 of the lifting pin 300. The lifting pin 300 and the at least one key 330, 340 may be inserted through the open side of the c-channel and into the lifting pin opening disposed in the connecting side 106 of the c-channel. In some embodiments, the shaft 320, the first key 330, and the second key 340 may be inserted into the open side of the c-channel 105. The shaft 320 and the first key 330 may be inserted through the lift pin opening until the second key 340 abuts the connecting side 106 of the c-channel 105. After the second key 340 abuts the connecting side 106 of the c-channel, the lifting pin may be rotated, such that the first key 330 and the second key 240 are in a position other than the predetermined position.
Referring generally to
Referring to
The rectangular hollow section 430 may be attached to a frame or structure of the generator enclosure (e.g., enclosure 100). Specifically, the rectangular hollow section 430 may be attached to one or more beams 102 and/or columns 101 of the generator enclosure 100. For example, a plurality of nuts and bolts (e.g., 431 and 432) may be used to attach the rectangular hollow section 430 to the frame or structure of the generator enclosure. Referring generally to
Returning to
Referring generally to
Accordingly, the shaft 520 and the key 530 of the lifting pin 540 may be inserted through the keyhole in the first wall 441 and a portion of the shaft 520 may be inserted into the retaining opening 450. Additionally, the shaft 520 and key 530 may be inserted through a lifting pin opening formed in the c-channel 105. The lifting pin 540 may be inserted into the lock assembly 460 until the key 530 abuts the third wall 443 of the lock assembly 460. When the key 530 of the lifting pin abuts the third wall 443, the lifting pin 540 may be rotated (e.g., about a central axis of the shaft 520) from the predetermined position to another position (e.g., locked position) different than the predetermined positions.
At act S101, the shaft 320 and at least one key 330, 340 attached to the shaft are inserted into the at least one keyhole 410, 420. In other words, a portion of the lifting pin 300 including a portion of the shaft 320 and the at least one key 330, 340 are inserted into the at least one keyhole 410, 420 of the lock assembly 400. The shaft 320 and the at least one key 330, 340 of the lifting pin 300 may be inserted into the at least one keyhole 410, 420 when the at least one key 330, 340 of the lifting pin 300 is in the predetermined position. The lifting pin 300 may be inserted into the at least on keyhole 410, 420 until a second key 340 abuts a surface 110 or a roof panel 104 of the generator enclosure 100. The second key 340 may abut a surface 110 or roof panel 104 after the first key has traveled through all of the keyholes in the lock assembly 400. In the case of the lifting assembly 200 of
At act S103, the shaft 320 of the lifting pin 300 is rotated about the central axis of the shaft 320. The lifting pin 300 may rotated about a central axis of the shaft 320 such that the first key 330 and the second key 340 are rotated from a specific radial position (e.g., a predetermined position) to another position other than the specific radial position (e.g., a locked position). The angle of rotation of the lifting pin may vary. For examples, in some examples the shaft 320 of the lifting pin 300 may be rotated 45°. In other examples, the shaft 320 may be rotated 90°. In yet other examples, the shaft 320 may be rotated 180° or any other suitable angle of rotation. In some examples, the lifting pin 300 (e.g., the shaft 320 of the lifting pin 300) may be rotated such that the lift hook 310 is in a vertical position. In some examples, the lifting pin 300 may be rotated such that lift hook 310 is in a vertical position with the hook opening 311 proximate to a top end of the lift hook 310. In some embodiments, the lifting pin 300 may be rotated such that the hook opening 311 is located above the roof panel 104 of the generator enclosure 100.
At act S105, a portion of the generator enclosure 100 is lifted using the hook opening 311 in the at least one lifting pin 300. The hook opening 311 is configured to receive an implement for lifting such as a hook (e.g., an eye hook, clevis hook, swivel hook, etc.), shackle (e.g., bow shackle, D shackle, etc.), chain, rope, or the like. The implement for lifting maybe attached to a lifting machine, such as a crane, for lifting a portion of the generator enclosure 100. The lifting pin 300, and more specifically, the shaft 320 of the lifting pin 300 may be configured to support the generator enclosure when the generator enclosure is lifted using the hook opening 311. In some examples, the hook opening 311 of the lifting pin 300 may be located above the roof panel 104 when a portion of the generator enclosure is lifted. In some examples, the portion of the generator enclosure to be lifted includes the entire generator enclosure 100. In other examples, the portion of the generator enclosure to be lifted includes only the roof panel 104 of the generator enclosure 100. Only the roof panel 104 of the generator enclosure 100 may be lifted when the one or more enclosure fasteners 130 attaching the roof panel 104 to the remaining portion of the generator enclosure are removed.
In some examples, a portion of the generator enclosure may be lifted using a plurality of lifting pins 300 and lock assemblies 400. The number of lifting pins 300 and lock assemblies 400 used to lift a portion of the generator enclosure may vary. For example, in some embodiments four lifting pins 300 and four lock assemblies 400 may be used to lift in a portion of the generator enclosure (e.g., the lift hook of four locking pins may be used to lift a portion of the generator enclosure). In another example, eight lifting pins 300 and eight lock assemblies 400 may be used to lift a portion of the generator enclosure. In yet another example, six lifting pins 300 and six lock assemblies 400 may be used to lift a portion of the generator enclosure. In some examples, the lifting pins 300 and lock assemblies may be equally spaced along a length of the generator enclosure.
The bottom brace 600 may include a top flange 610 attached to the top of a beam 102 of the generator enclosure and/or a top of the lock assembly 400. The bottom brace 600 may further include a bottom flange 620 and a web portion 630. The bottom flange 620 and the web portion 630 may have a substantially triangular shape. The bottom flange 620 may be attached to a bottom of a beam 102 of the generator enclosure and/or a bottom of the lock assembly 400 and form one side of the substantially triangular shape. The web portion 630 may extend downward from the top flange 610. The web portion 630 may include the other two sides of the triangular shape. The web portion 630 may have a smaller cross-sectional width than the top flange 610 and/or the bottom flange 620.
The bottom brace 600 may be comprised of metal or metal alloy. For example, the bottom brace 600 may be comprised of aluminum alloy, cast iron, steel, or the like. The bottom brace 600 may improve the structural rigidity of the generator enclosure 100. Specifically, the bottom brace 600 may distribute the load applied to the lock assembly to a larger area of the generator enclosure when a portion of the generator closure is lifted.
Referring generally to
Referring to
Still referring to
As utilized herein, the terms “approximately,” “about,” “substantially”, and similar terms are intended to have a broad meaning in harmony with the common and accepted usage by those of ordinary skill in the art to which the subject matter of this disclosure pertains. It should be understood by those of skill in the art who review this disclosure that these terms are intended to allow a description of certain features described and claimed without restricting the scope of these features to the precise numerical ranges provided. Accordingly, these terms should be interpreted as indicating that insubstantial or inconsequential modifications or alterations of the subject matter described and claimed are considered to be within the scope of the disclosure as recited in the appended claims.
It should be noted that the term “exemplary” and variations thereof, as used herein to describe various embodiments, are intended to indicate that such embodiments are possible examples, representations, or illustrations of possible embodiments (and such terms are not intended to connote that such embodiments are necessarily extraordinary or superlative examples).
The term “coupled” and variations thereof, as used herein, means the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent or fixed) or moveable (e.g., removable or releasable). Such joining may be achieved with the two members coupled directly to each other, with the two members coupled to each other using a separate intervening member and any additional intermediate members coupled with one another, or with the two members coupled to each other using an intervening member that is integrally formed as a single unitary body with one of the two members. If “coupled” or variations thereof are modified by an additional term (e.g., directly coupled), the generic definition of “coupled” provided above is modified by the plain language meaning of the additional term (e.g., “directly coupled” means the joining of two members without any separate intervening member), resulting in a narrower definition than the generic definition of “coupled” provided above. Such coupling may be mechanical, electrical, or fluidic.
The term “or,” as used herein, is used in its inclusive sense (and not in its exclusive sense) so that when used to connect a list of elements, the term “or” means one, some, or all of the elements in the list. Conjunctive language such as the phrase “at least one of X, Y, and Z,” unless specifically stated otherwise, is understood to convey that an element may be either X, Y, Z; X and Y; X and Z; Y and Z; or X, Y, and Z (i.e., any combination of X, Y, and Z). Thus, such conjunctive language is not generally intended to imply that certain embodiments require at least one of X, at least one of Y, and at least one of Z to each be present, unless otherwise indicated.
References herein to the positions of elements (e.g., “top,” “bottom,” “above,” “below”) are merely used to describe the orientation of various elements in the FIGURES. It should be noted that the orientation of various elements may differ according to other exemplary embodiments, and that such variations are intended to be encompassed by the present disclosure.
Although the figures and description may illustrate a specific order of method steps, the order of such steps may differ from what is depicted and described, unless specified differently above. Also, two or more steps may be performed concurrently or with partial concurrence, unless specified differently above. Such variation may depend, for example, on the software and hardware systems chosen and on designer choice. All such variations are within the scope of the disclosure. Likewise, software implementations of the described methods could be accomplished with standard programming techniques with rule-based logic and other logic to accomplish the various connection steps, processing steps, comparison steps, and decision steps.
It is important to note that the construction and arrangement of the system as shown in the various exemplary embodiments is illustrative only. Additionally, any element disclosed in one embodiment may be incorporated or utilized with any other embodiment disclosed herein. Although only one example of an element from one embodiment that can be incorporated or utilized in another embodiment has been described above, it should be appreciated that other elements of the various embodiments may be incorporated or utilized with any of the other embodiments disclosed herein.
When a component, element, device, or the like of the present disclosure is described as having a purpose or performing an operation, function, or the like, the component, device, or element should be considered herein as being “configured to” meet that purpose or to perform that operation or function.
This application claims priority benefit of Provisional Application No. 63/351,986 (Docket No. 10222-22012A) filed Jun. 14, 2022, which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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63351986 | Jun 2022 | US |