Self-propelled tandem axle trailer
A trailer for towing by a power vehicle is provided and generally includes a frame and a tandem wheel assembly. The frame forms an undercarriage chassis which the tandem wheel assembly is positioned there under. The undercarriage chassis includes a rear wheel assembly, a front wheel assembly, and an extension assembly moving the front wheel assembly between trailing position and a self-propelled position where the rear wheel assembly and the front wheel assembly are positioned to equally support the undercarriage chassis.
1. A trailer for towing by a power vehicle, comprising:
a frame forming an undercarriage chassis and having a plurality of support beams positioned and secured apart by a plurality of connecting beams, a front support, and a rear support, each support beam of the plurality of support beams having a support rail positioned on a lower end and running along a length thereof; and
a tandem wheel assembly positioned under the undercarriage chassis and having a rear wheel assembly, a front wheel assembly, and an extension assembly moving the front wheel assembly between trailing position and a self-propelled position where the rear wheel assembly and the front wheel assembly are positioned to fully support the undercarriage chassis.
2. The trailer of claim 1 , wherein the front support includes a trailer connection section with a trailer hitch positioned one a leading end of the frame.
3. The trailer of claim 1 , wherein the rear wheel assembly includes a pair of rear wheels secured to a rear wheel frame.
4. The trailer of claim 3 , wherein the front wheel assembly includes a pair of front wheels secured to a front wheel frame.
5. The trailer of claim 4 , wherein the front wheel frame includes a body with a pair of low friction guides positioned at opposite side ends thereof and corresponding to the support rail of each of the plurality of support beams.
6. The trailer of claim 5 , wherein each low friction guide of the pair of low friction guides is a u-shaped member includes low frictions pads to provide a low friction coefficient between the front wheel frame and the support rail.
7. The trailer of claim 5 , wherein the front wheel assembly further includes a front steering assembly controlling steering for the pair of front wheels when in the self-propelled position.
8. The trailer of claim 7 , wherein the front steering assembly includes a steering bracket for controlling a pair of steering arms connected the pair of front wheels.
9. The trailer of claim 7 , wherein the rear wheel assembly further includes a rear drive assembly rotating the pair of rear wheels.
10. The trailer of claim 9 , wherein the rear drive assembly includes a rear hydraulic motor assembly to engage a rear rotor assembly for each rear wheel of the pair of rear wheels.
11. The trailer of claim 10 , wherein the front wheel assembly further includes a front drive assembly rotating the pair of front wheels.
12. The trailer of claim 11 , wherein the front drive assembly includes a front hydraulic motor assembly to engage a front rotor assembly for each front wheel of the pair of front wheels.
13. The trailer of claim 11 , further comprising a storage bin and an extension device connected to the frame and the storage bin to move the storage bin away from the frame.
14. The trailer of claim 13 , wherein the storage bin includes a platform extending substantially parallel with the frame.
15. The trailer of claim 14 , wherein the extension device includes a first extension section rotatably connected the frame and a second extension section rotatably connected to the first extension section, and a storage bin platform section connected to the second extension section.
16. The trailer of claim 15 , wherein the second extension section is expandable and includes a boom support, a sliding support received by the boom support, a sliding mechanism moving expanding the sliding support from the boom support.
17. The trailer of claim 16 , wherein the second extension section further includes an upper lifting actuator assembly connected to the frame and the boom support to extend move the boom support away from the frame.
18. A trailer for towing by a power vehicle, comprising:
a frame forming an undercarriage chassis and having a plurality of support beams positioned and secured apart by a plurality of connecting beams, a front support, and a rear support, each support beam of the plurality of support beams includes a support rail; and
a tandem wheel assembly positioned under the undercarriage chassis and having a rear wheel assembly, a front wheel assembly, and an extension assembly moving the front wheel assembly between trailing position and a self-propelled position where the rear wheel assembly and the front wheel assembly are positioned to equally support the undercarriage chassis, wherein the rear wheel assembly includes a pair of rear wheels secured to a rear wheel frame and the front wheel assembly includes a pair of front wheels secured to a front wheel frame, the front wheel frame includes a body with a pair of low friction guides positioned at opposite side ends thereof and corresponding to the support rail of each of the plurality of support beams.
19. The trailer of claim 18 , wherein each low friction guide of the pair of low friction guides is a u-shaped member includes low frictions pads to provide a low friction coefficient between the front wheel frame and the support rail.
20. The trailer of claim 18 , wherein the front wheel assembly further includes a front steering assembly controlling steering for the pair of front wheels when in the self-propelled position.
21. The trailer of claim 20 , wherein the front steering assembly includes a steering bracket for controlling a pair of steering arms connected the pair of front wheels.
22. The trailer of claim 20 , wherein the rear wheel assembly further includes a rear drive assembly rotating the pair of rear wheels.
23. The trailer of claim 22 , wherein the rear drive assembly includes a rear hydraulic motor assembly to engage a rear rotor assembly for each rear wheel of the pair of rear wheels.
24. The trailer of claim 23 , wherein the front wheel assembly further includes a front drive assembly rotating the pair of front wheels.
25. The trailer of claim 24 , wherein the front drive assembly includes a front hydraulic motor assembly to engage a front rotor assembly for each front wheel of the pair of front wheels.
26. The trailer of claim 24 , further comprising a storage bin and an extension device connected to the frame and the storage bin to move the storage bin away from the frame.
27. The trailer of claim 26 , wherein the storage bin includes a platform extending substantially parallel with the frame.
28. The trailer of claim 27 , wherein the extension device includes a first extension section rotatably connected the frame and a second extension section rotatably connected to the first extension section, and a storage bin platform section connected to the second extension section.
29. The trailer of claim 28 , wherein the second extension section is expandable and includes a boom support, a sliding support received by the boom support, a sliding mechanism moving expanding the sliding support from the boom support.
30. The trailer of claim 29 , wherein the second extension section further includes an upper lifting actuator assembly connected to the frame and the boom support to extend move the boom support away from the frame.