Cold planer exhaust system with access doors

Patent metadata

Field	Value
Publication number	US-9873142-B2
Application number	US-201514703404-A
Country	US
Kind code	B2
Filing date	May 4, 2015
Priority date	May 4, 2015
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

Cold planer exhaust systems and methods of clearing the same are disclosed. The exhaust systems and methods may include an inlet manifold located proximate a milling drum housing and above a material conveyor. The inlet manifold may further include at least one inlet passage and at least one access door configured to open and allow access to an interior of the exhaust system. The systems and methods may further include a ventilator configured to draw dust and fumes into and through the exhaust system.

First claim

What is claimed is:

1. An exhaust system for a cold planer, comprising:
an inlet manifold located at an exit area of a milling drum housing, downstream, in a direction of travel of milled material, from a milling drum and above a material conveyor, the inlet manifold comprising:
a top side removably secured to a frame of the cold planer,
a bottom side positioned below the top side when the top side is removably secured to the frame and including at least one access door configured to open and allow access to an interior of the exhaust system, and
a bottom inlet plate supported by the bottom side and extending downstream, in a direction of travel of milled material, from the bottom side and angled upwardly toward the top side so that a distance between the top side and the bottom inlet plate decreases as the bottom inlet plate extends downstream, wherein the bottom inlet plate and the top side define at least one inlet passage at a downstream end of the inlet manifold configured to received dust and fumes generated by the milling drum; and
a ventilator in fluid communication with the inlet manifold and the at least one inlet passage, the ventilator configured to draw the dust and fumes from the inlet manifold and the at least one inlet passage to the ventilator.

2. The exhaust system of claim 1 , wherein the inlet passage is between a bottom side and a top side of the inlet manifold.

3. The exhaust system of claim 1 , wherein the inlet passage is elongated and positioned between opposite ends of the inlet manifold.

4. The exhaust system of claim 1 , wherein the at least one access door includes two access doors located at opposite ends of the inlet manifold.

5. The exhaust system of claim 1 , wherein the at least one access door includes a manually releasable locking mechanism.

6. The exhaust system of claim 1 , wherein the at least one access door is transparent.

7. The exhaust system of claim 1 , further comprising at least one evacuation passage extending from the inlet manifold to the ventilator.

8. The exhaust system of claim 1 , further comprising a secondary inlet manifold located between the inlet manifold and the ventilator, the secondary inlet manifold including at least one secondary inlet passage configured to receive dust and fumes, and at least one secondary access door in the secondary inlet manifold configured to open and allow access to an interior of the secondary inlet manifold.

9. A cold planer, comprising:
a frame;
at least one traction device configured to support the frame;
an engine supported by the frame and configured to drive the at least one traction device to propel the cold planer;
a milling drum;
a material conveyor having a charge end located to receive removed material delivered onto the charge end by the milling drum;
an exhaust system comprising:
an inlet manifold located above the charge end of the material conveyor and downstream, in a direction of travel of milled material, of the milling drum, the inlet manifold comprising:
a top side removably secured to the frame,
a bottom side positioned below the top side when the top side is removably secured to the frame, and including at least one access door in the inlet manifold configured to open and allow access to an interior of the exhaust system, and
a bottom inlet plate supported by the bottom side and extending downstream, in a direction of travel of milled material, from the bottom side and angled upwardly toward the top side so that a distance between the top side and the bottom inlet plate decreases as the bottom inlet plate extends downstream, wherein the bottom inlet plate and the top side define at least one inlet passage at a downstream end of the inlet manifold configured to received dust and fumes generated by the milling drum, and

a ventilator in fluid communication with the inlet manifold and the at least one inlet passage; and
a material deflector supported on the frame and adjacent the at least one inlet passage, the material deflector configured to block material from entering the at least on inlet passage.

10. The cold planer of claim 9 , wherein the inlet passage is elongated and positioned between opposite ends of the inlet manifold.

11. The cold planer of claim 10 , wherein the material deflector is elongated and has a length equal to a length of the inlet passage.

12. The cold planer of claim 9 , wherein the at least one access door includes two access doors located at opposite ends of the inlet manifold.

13. The cold planer of claim 9 , wherein the at least one access door includes a manually releasable locking mechanism.

14. The cold planer of claim 9 , wherein the exhaust system is detachable from the cold planer.

15. The cold planer of claim 9 , wherein the ventilator is mounted upon and configured to discharge into a conveyor housing.

16. The cold planer of claim 9 , wherein the inlet manifold of the exhaust system is accessible for manual manipulation and cleaning.

17. A method of cleaning out an exhaust system of a cold planer, comprising:
providing a cold planer having an exhaust system, the exhaust system including an inlet manifold downstream, in a direction of travel of milled material, of a milling drum, above a primary material conveyor and configured to receive dust and fumes, the inlet manifold comprising:
a top side removably secured to a frame of the cold planer,
a bottom side positioned below the top side when the top side is removably secured to the frame and having at least one access door configured to open to allow access to an interior of the exhaust system, and
a bottom inlet plate supported by the bottom side and extending downstream, in a direction of travel of milled material, from the bottom side and angled upwardly toward the top side so that a distance between the top side and the bottom inlet plate decreases as the bottom inlet plate extends downstream, wherein the bottom inlet plate and the top side define at least one inlet passage at a downstream end of the inlet manifold configured to receive dust and fumes generated by a milling drum;

opening the at least one access door of the inlet manifold; and
accessing an interior of the inlet manifold and clearing the inlet manifold of any material therein.

18. The method of claim 17 , wherein opening the at least one access door requires unlocking the access door.

Assignees

• Caterpillar Paving Products Inc

Inventors

• Bjorge Jason

Classifications

• E21C35/223

  Equipment associated with mining machines for sucking dust-laden air from the cutting area, with or without cleaning of the air · CPC title

• E01C2301/50

  Methods or devices for preventing dust by spraying or sucking · CPC title

• B08B15/02

  using chambers or hoods covering the area {(B08B15/002 takes precedence)} · CPC title

• E01C23/127

  rotary, e.g. rotary hammers · CPC title

• B08B9/04 Primary

  using cleaning devices introduced into and moved along the pipes · CPC title