This invention relates to heavy lifting and positioning machinery and the manufacture thereof for installation at a site. More particularly, this invention relates to improved railway hoist machinery and an improved method of installing the same.
Heavy machinery is found in many factories, rail yards, repair shops and other locations where large items are moved and positioned. For example, lifting machinery is often required to repair rail cars, engines and other railway vehicles and machinery. The lifting machinery is often made up of large support structures using hydraulic pistons, screws or large motors to move machinery. Because of the size of the lifting machinery and the size of machinery to be moved, it is often advantageous to place the lifting machinery below ground level, typically in a foundation.
In the case of a rail car lifting or positioning machinery such as a repair stand or hoist, it is desirable that the gap between the rails on the ground and the rails on the positioning machine be minimized. The size of the foundation must match to the dimensions of the machinery so that the machinery can operate properly. A difficulty associated with minimizing gaps and rubbing is that the machinery sits in a foundation that is created using concrete forms that are often built from wooden boards and sheets. These forms are often cut and designed on site.
The machinery is often built from large steel plates and/or beams and machine elements that are cut and fit at the point of manufacture. Because the foundation and the machinery are built separately, the foundation often needs modifications when the machinery is installed on site to adjust the tolerances and gaps for ideal operation of the machinery within the foundation.
Current practice sometimes uses a number of foundation embedments to create complicated sections of a foundation. In order to properly locate each embedment, a number of variables may need to be properly surveyed or measured to allow for correct installation. Variables include, for example, center, center line, perimeter and depth of the foundation. Locating center alone is often a surveying task that can take a substantial amount of time to complete. Once center is located, a number of holes must be drilled in a flat section of the foundation so that anchor bolts can be installed. The anchor bolts affix the machinery to the foundation, and the pattern of the anchor bolts must be within tight tolerances so that the machinery can easily bolt to the foundation. Again, locating the center and setting the pattern of the bolts in relation to center or another point of reference can be a lengthy and costly surveying task.
Often, a general contractor responsible for pouring concrete has difficulties achieving the tolerances required for machinery to operate correctly within a foundation. Since the tolerance requirements are so high relative to what is often required of general contractors, locating center and bolt holes within a foundation is a time consuming and expensive process. Additional problems with tolerances of concrete pouring may require alterations to foundations after pouring, which are time consuming and labor intensive.
Additionally, current practice for installation of machinery may require that the machinery is installed in a partially completed foundation, and then the foundation is completed once the machinery is in place. Often, the first part of the foundation is poured, and then the general contractor leaves the job site because of the length of time required to install the machinery. Then the machinery is installed, and once installed, the general contractor is brought back to the job site to complete the foundation. This requires additional costs associated with re-mobilizing the general contractor's foundation pouring operations.
U.S. Pat. No. 5,149,050 to Smith et al. discloses a base pad for supporting heavy, vibrating machinery with minimal environmental pollution. This pad does not relate to a foundation having walls, and the machinery does not appear to operate within a foundation having walls. Further, there does not appear to be disclosure of bolts affixing to the foundation by passing through bolt holes in a base of a receiver.
U.S. Pat. No. 7,798,067 to Starnes discloses a thin turntable having bearings disposed between a ground-engaging member and a load-supporting platform. A motor support box is located below the ground engaging member, the motor support box housing the motor assembly. An intermediate load transfer unit having bearing elements is located between the ground-engaging member and the load-supporting platform. The ground engaging unit of Starnes does not contain the entire turntable. The ground-engaging member has load surfaces that interact with the bearings of the intermediate load transfer unit.
U.S. Patent Application Publication No. 2007/0175353 A1 to Jeffs discloses a vehicle turntable with a housing having rollers within the housing. The housing rollers contact and support the turntable member. The vehicle turntable is pre-assembled with the housing, and the housing is an integral part of the turntable's ability to turn. A module adapted to receive completed machinery is not disclosed.
U.S. Pat. No. 7,966,939 to Holt discloses a foundation having a circular trench with an inner ring and an outer ring mounted within the circular trench. The two rings have rollers affixed thereon, and a bar assembly rests on the rollers. The turntable is assembled onto the foundation after the foundation is poured. A module adapted to receive completed machinery is not disclosed.
There is a need for improved lifting and positioning machinery that overcomes the disadvantages of the prior art. Much of the prior art is directed towards avoiding the use of a foundation for machinery such as a turntable. Although avoiding the use of a foundation for some applications may be acceptable, a foundation is often necessary for heavy loads, because the machinery must be stiff enough to support the heavy load. This avoidance of foundations in the prior art shows a need for machinery having an improved installation method.
It is therefore an object of the present invention to provide a method of installation for machinery that reduces or eliminates the need for modifications to a foundation after the foundation material is cured or set.
It is further an object to provide an improved method of installation for machinery that is cost effective.
Still another object is to provide a method of installation for machinery that allows a foundation to be built with tighter tolerances than prior art methods.
These and other objects are achieved by providing an assembly for supporting machinery. A frame module may include: a base with at least one attachment location, the attachment location for receiving the machinery; and a plurality of frame members affixed to the base, where at least one of the frame members defines a plane corresponding to a wall. A foundation may have first and second sections. The foundation may be disposed around the frame module and a portion of the frame module is at least partially submerged within the foundation. The machinery may have at least one flange for affixing the machinery to the foundation at the attachment location. The first section of the foundation may be disposed below an outside surface of the base and the second section of the foundation defines the wall of the foundation.
In some cases each attachment location includes at least one hole for receiving a bolt there through to affix the machinery to the foundation. Further, this may include a machinery hole in the base, the machinery hole adapted to receive a portion of the machinery there through. Also, a pit may be below the machinery hole where at least a portion of the machinery is adapted to operate in the pit. In addition, a pit member could be disposed below the base and may extend towards a bottom of the pit to define a wall of the pit. The pit member may be cylindrical. The pit base may be disposed at a bottom end of the pit member. Further, a tensioning member having first and second ends may be attached to the frame module at the first end and the pit base at the second end.
Other objects are achieved by providing a device for installing machinery in a foundation. A base may have at least one attachment location where the machinery is adapted to affix to the foundation at one or more of the attachment locations. A plurality of frame members may be affixed to the base and adapted to at least partially submerge in the foundation, where at least one the frame members may include an edge defining a plane corresponding to a wall of the foundation. At least one machinery hole is located in the base where at least a part of the machinery may be adapted to insert into the machinery hole to allow part of the machinery to extend below the base.
In other aspects, the device may include a pit member disposed below the base and defining a wall of a pit where part of the machinery is adapted to insert into the pit. Further the attachment location may include a plurality of holes and the machinery may be affixed to the foundation by bolts passing through the holes. The plurality of holes may be disposed in a pattern around the machinery hole and spaced away from an edge of the machinery hole. The pit member may be cylindrical. A pit base may be disposed at a bottom end of the pit member. A tensioning member has first and second ends, the tensioning member is attached to the frame module at the first end and the pit base at the second end.
Other objects are achieved by providing a method of installing machinery including the step of providing a frame module defining an opening and sized to receive at least part of the machinery therein, the frame module including a plurality of attachment locations and at least one frame member for defining a wall. The method may further include excavating a hole in the ground, the hole sized to receive the frame module and pouring a foundation material so that the foundation material is disposed below the frame module and around the opening. The machinery may be affixed to the foundation at the attachment locations.
The method may include the frame module having at least one machinery hole and the method including the step of providing a pit member and securing the pit member below the machinery hole. The excavating step may include excavating the hole so that the hole is sized to receive the pit member. The pouring step may include pouring foundation material such as concrete or a backfill material or others around the pit member. Further, each attachment location may have at least one hole for receiving a bolt there through to affix the machinery to the foundation. In addition, the step of providing and securing a pit member may include one or more of: providing a pit base at a bottom end of the pit member; providing a tensioning member having first and second ends; attaching the tensioning member the frame module at the first end and the pit base at the second end; and/or tensioning the tensioning member to secure the pit member to the frame module. The step of pouring a foundation material may include pouring a first section of the foundation below and around the pit member and pouring a second section of the foundation between the first section and the base. The first and second sections may overlap.
In addition, the frame module may be provided with electrical wiring or electrical connections affixed thereto. Preferably, this wiring is installed at the factory producing the frame module to reduce installation time, however it is contemplated that wiring may be installed at another location. The wiring is used to operate the machinery, and the method may include the step of of connecting the machinery to the electrical wiring. Further, the machinery may include a plurality of motors, and the electrical wiring may include at least one connection for each of the plurality of motors. In addition, the wiring may include a releasable connection that allows for easier connection and disconnection of one or multiple columns from the electrical system. These releasable connections may be considered easier than directly splicing or joining wires to each other, which is an operation that could require specialized installation skills of an electrician. The use of the releasable electrical connections can help ensure that the machinery is properly installed and connected to the controller. Further, the connections may be designed so that there is only one way to connect the controller and the machinery, thus increasing the likelihood that the correct connections are made.
Further, a drain may be provided and affixed to the frame module. In some cases, the frame module may be provided with the drain already affixed thereto, and the method may include connecting the drain to an exterior drainage. The exterior drainage may be a sewer line, a storm drain or other channel or location that can allow for water to be removed from the foundation.
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Since the frame module is typically designed for a specific type of machinery, electrical connections and conduit may be connected to the frame module 4 at the factory to allow for easy installation and repair of the machinery. The electrical connections will typically connect to a controller or control system that is used to operate the machinery. These connections may converge at a junction box or electrical panel that is attached to the frame members so that the junction box or electrical panel can be accessed. For example, a junction box or electrical panel may be placed along the top edge of the foundation frame so that the foundation is poured around the junction box or electrical panel, with one side of the box or panel showing to allow for connection of the controller. For example, the junction box or electrical panel may be placed so that it is partially submerged and embedded in the floor at track level. This allows for access to the junction box or electrical panel without an obstruction or hazard protruding from the the shop floor.
In some cases, the machinery has one motor associated with each column, therefore, the junction box would accept all electrical connections for each of the columns, with conduit and wiring individually running to each of the columns. Some of the connections may include connections to power motors, and connections to carry sensor signals. It would be understood to one of skill in the art that the electrical connections provided with the frame module would relate to the machinery being installed and thus other connection types are contemplated. Similar to the drain pipe system discussed in
The ends of the wiring may include releasable electrical connections to allow for easy disconnection and connection that requires reduced, limited or no knowledge from an electrician. Similarly, the junction box or panel may also include one or multiple releasable connections that are associated with the columns, motors, sensors and other controls, these releasable connections may be specific to a particular wiring pattern for the controller so that incorrect wiring is avoided. The junction box or panel may be located such that the controller can be connected thereto. Non-symmetrical plugs and sockets and different shaped connectors that are designed to be compatible with certain wiring schematics are contemplated in order to reduce the likelihood of incorrect wiring. If appropriate, other types of connections may be considered part of the “electrical connection,” for example, an optical connection or others may be used, for example to transmit sensor signals as necessary.
The conduit for the electrical connections may be embedded in the foundation, or may be designed to be attached to the inner surface of the frame member 4. For example, the conduit may run along the top of base plates 40, 42. The conduit may also run along the frame members 46 or beneath the base plates 40, 42, different locations and combinations of orientations for the conduit and junction boxes are contemplated.
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In order to install the machinery in the completed foundation the section of the foundation below the attachment locations may be drilled according to the pattern of holes. A bolt may be inserted, bonded or affixed in the drilled holes, and the flange of the machinery can be attached to the bolts. It is also contemplated that the bolts can be inserted into the foundation material while or prior to curing. This may eliminate the step of drilling the holes according to the pattern of the attachment locations. Further, the bolts may be installed in the holes prior to installing the frame module in the excavated hole or prior to pouring the foundation material.
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Number | Date | Country | |
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Parent | 14085489 | Nov 2013 | US |
Child | 14139163 | US | |
Parent | 13826001 | Mar 2013 | US |
Child | 14085489 | US |