Trailer for transport of fracking sand
An assembly for a fracking sand trailer wherein a door can be positioned to allow a measured flow of sand to exit the assembly. The assembly can be attached to a hopper of a trailer and can stand the weight of heavy loads associated with sand. A trailer with the assembly is also described and utilizes specific construction techniques to lighten the weight of the trailer.
1. An assembly for a sand trailer for wet sand and dry sand, comprising:
a door;
the door movable from a first position to a second position;
the first position is a closed position;
the second position is at least a partially open position;
the first position in a first plane;
the second position in the first plane;
a frame;
the frame having a first side;
the frame having a second side;
the first side at a first edge of the frame;
the second side at a second edge of the frame;
the first edge opposite of the second edge;
the frame mountable to the sand trailer;
a motor capable of moving the door from the first position to the second position;
a track wherein the door moves along the track;
the door is rigid;
the door has a length;
a plurality of reinforcement members wherein the plurality of reinforcement members can support the wet sand;
the plurality of reinforcement members span the entire length of the door;
the plurality of reinforcement members spans from the first side of the frame to the second side of the frame;
the plurality of reinforcement members span from the first edge to the second edge;
at least one of the plurality of reinforcement members is located on a non-periphery of the door;
the door including the plurality of reinforcement members is slidable between an upper subframe and a lower subframe;
cross members linking each side of the assembly;
a pair of elongated arms attached to at least one of the cross members;
wherein the pair of elongated arms can be attached to the sand trailer to support the door particularly when the door is in a partially open position.
2. The assembly of claim 1 , further comprising:
roller chain elements.
3. The assembly of claim 2 , wherein:
a gear reducer rotates a sprocket to engage the roller chain elements;
wherein hydraulic motors coupled to the gear reducer multiply a driving force of the hydraulic motors to overcome a friction on the door caused by the wet sand.
4. The assembly of claim 1 , wherein:
a shield covers a drive shaft of each motor.
5. The assembly of claim 1 , wherein:
the door is movable to a plurality of positions between the first position and the second position for commodity metering capabilities.
6. The assembly of claim 5 , further comprising:
a sensor capable of determining the location of the door relative to a portion of the assembly.
7. The assembly of claim 6 , wherein:
spacing of roller chain elements and gears on sprockets determine incremental positions of the door.
8. The assembly of claim 7 , wherein:
the door is at least four feet by four feet to allow wet sand to exit the assembly.