Track roller assembly for supporting telescoping boom sections
A track roller assembly for supporting telescoping boom sections of aerial devices. The track roller assembly is positioned in an interior channel of a hollow first boom section. The track roller assembly supports a majority of the weight of a second boom section and facilitates the second boom section telescoping in and out of the first boom section. The track roller assembly comprises a bracket to securely couple the track roller assembly to the interior channel of the first boom section, a plurality of rollers rotatably connected to the bracket, and a continuous track engaging the plurality of rollers on an interior surface and adjacent to the second boom section on an exterior surface.
1. A telescoping boom assembly for an aerial device, the boom assembly comprising:
an elongated, hollowed first boom section presenting a distal end, a proximal end, and an interior channel having a length;
an elongated second boom section configured to telescope within at least a portion of the length of the interior channel of the first boom section; and
a track roller assembly for facilitating telescoping of the second boom section relative to the first boom section and supporting at least a portion of the weight of the second boom section,
said track roller assembly positioned in the interior channel at the distal end of the first boom section,
said track roller assembly comprising —
a bracket securely coupled to said interior channel of the first boom section,
a plurality of rollers rotatably coupled to the bracket,
a continuous track disposed around the plurality of rollers and presenting an interior surface and an exterior surface,
wherein the interior surface of the continuous track is disposed around and engages the plurality of rollers,
wherein the exterior surface of the continuous track is adjacent to and directly supporting the second boom section.
2. The telescoping boom assembly of claim 1 , wherein the second boom section is formed of fiberglass.
3. The telescoping boom assembly of claim 1 , wherein the first boom section is formed of fiberglass.
4. The telescoping boom assembly of claim 1 , further comprising a hydraulic power source that telescopes the second boom section within the first boom section.
5. The telescoping boom assembly of claim 1 , wherein the first boom section is pivotably and rotatably coupled at its proximal end to the aerial device.
6. The telescoping boom assembly of claim 1 , further comprising a utility platform disposed at the distal end of the second boom section.
7. The telescoping boom assembly of claim 1 , further comprising a second track roller assembly,
wherein said track roller assembly and said second track roller assembly are each disposed within said interior channel of the first boom section and laterally adjacent to each other.
8. The telescoping boom assembly of claim 1 , wherein said bracket further comprises a mounting plate and at least two opposing arms.
9. The telescoping boom assembly of claim 8 , wherein the bracket is fastened to said interior channel of the first boom section via a plurality of fasteners.
10. The telescoping boom assembly of claim 1 , wherein the track roller assembly further comprises:
a roller assembly, comprising —
a roller housing pivotably secured to the at least two opposing arms of the bracket,
a first roller of said plurality of rollers, rotatably coupled to the roller housing,
a second roller of said plurality of rollers, rotatably coupled to the roller housing.
11. The telescoping boom assembly of claim 10 ,
wherein the roller assembly further comprises:
a first securing pin emplaced in an opening in the roller housing and a corresponding opening in the first roller,
a second securing pin emplaced in an opening in the roller housing and a corresponding opening in the second roller,
wherein the track roller assembly further comprises:
a third securing pin emplaced in an opening in the at least two opposing arms and a corresponding opening in said roller housing.