Wearpad arrangement
View Patent ↗A boom assembly includes a first boom member and a second boom member slidable relative to the first member in a first direction. A stop member that at least partially defines a receptacle is attached to the first member. A closure member is attachable to the first member in a fixed position and movable away from the fixed position. A planar wearpad is insertable into the receptacle in the first direction when the closure member is moved away from the fixed position and the second member is positioned on the first member. The stop and closure members inhibit lateral movement of the wearpad in a direction parallel to the plane of the wearpad, and allow movement of the wearpad in a direction transverse to the plane, when the wearpad is positioned in the receptacle. The second member inhibits movement of the wearpad in the direction transverse to the plane.
1. A wearpad arrangement for use with two members, wherein one of the members is slidable relative to the other member in a first direction, the wearpad arrangement comprising:
a frame that is attachable to one of the members such that the frame at least partially defines a receptacle;
a closure member that is attachable to the one member in a fixed position and movable away from the fixed position, wherein the closure member cooperates with the frame to define a retaining structure when the closure member is positioned in the fixed position; and
a wearpad that is insertable into the receptacle in the first direction when the closure member is moved away from the fixed position and the other member is positioned on the one member, wherein when the wearpad is positioned in the receptacle and the closure member is positioned in the fixed position, the wearpad is held loosely in the receptacle by the retaining structure, and the wearpad is inhibited from moving out of the receptacle by contact with the other member, and wherein the wearpad has a chamfer configured to be spaced away from the one member when the wearpad is positioned in the receptacle, and the chamfer provides clearance with respect to a weld bead on the other member.
2. The wearpad arrangement of claim 1 wherein the wearpad includes a side surface having a wear indicator groove.
3. The wearpad arrangement of claim 1 wherein the wearpad is configured to extend laterally beyond a side of the one member when the wearpad is positioned in the receptacle, such that the wearpad engages a side surface of the other member.
4. The wearpad arrangement of claim 1 wherein the wearpad has a first surface and a second surface that extends at an angle with respect to the first surface, and wherein the first and second surfaces contact the other member when the wearpad is inserted into the receptacle.
5. The wearpad arrangement of claim 4 wherein the second surface is generally perpendicular to the first surface.
6. The wearpad arrangement of claim 1 wherein the closure member is attachable to the one member in the fixed position with one or more fasteners that extend in the first direction.
7. The wearpad arrangement of claim 1 further comprising an additional frame and an additional wearpad, wherein the additional frame is attachable to the one member such that the additional frame at least partially defines an additional receptacle proximate the receptacle, the closure member cooperates with the additional frame to define an additional retaining structure, and the additional wearpad is insertable into the additional receptacle in the first direction when the closure member is moved away from the fixed position and the other member is positioned on the one member such that the other member is positioned adjacent the frame and the additional frame.
8. The wearpad arrangement of claim 1 wherein the wearpad has a chamfer spaced away from the one member when the wearpad is positioned in the receptacle, and the chamfer is configured as a wear indicator.
9. A boom assembly comprising:
a first boom member;
a second boom member that is slidable relative to the first boom member in a first direction;
a stop member attached to the first boom member, the stop member at least partially defining a receptacle that faces the second boom member when the second boom member is positioned on the first boom member;
a closure member that is attachable to the first boom member in a fixed position proximate the stop member and movable away from the fixed position; and
a planar wearpad that is insertable into the receptacle in the first direction when the closure member is moved away from the fixed position and the second boom member is positioned on the first boom member;
wherein the stop member and the closure member inhibit lateral movement of the wearpad in a direction parallel to the plane of the wearpad, and allow movement of the wearpad in a direction transverse to the plane of the wearpad, when the wearpad is positioned in the receptacle and the closure member is positioned in the fixed position, and the second boom member inhibits movement of the wearpad in the direction transverse to the plane of the wearpad, and wherein the closure member is attachable to the first boom member in the fixed position with one or more fasteners that extend in the first direction, and the first boom member has a slot that permits movement of the one or more fasteners in a direction transverse to the first direction.
10. The boom assembly of claim 9 wherein the stop member is configured as a frame that extends along at least two sides of the wearpad when the wearpad is positioned in the receptacle.
11. The boom assembly of claim 9 wherein the wearpad extends laterally beyond a side of the first boom member when the wearpad is positioned in the receptacle, such that the wearpad engages a side surface of the second boom member.
12. The boom assembly of claim 9 wherein the wearpad has a first surface and a second surface that extends at an angle with respect to the first surface, and wherein the first and second surfaces contact the second boom member when the wearpad is inserted into the receptacle.
13. The boom assembly of claim 9 further comprising an additional stop member and an additional wearpad, wherein the additional stop member is attached to the first boom member such that the additional stop member at least partially defines an additional receptacle proximate the receptacle, the closure member cooperates with the additional stop member to define an additional retaining structure, and the additional wearpad is insertable into the additional receptacle in the first direction when the closure member is moved away from the fixed position and the second boom member is positioned on the first boom member such that the second boom member is positioned adjacent the stop member and the additional stop member.
14. The boom assembly of claim 9 wherein the wearpad has a chamfer spaced away from the first boom member when the wearpad is positioned in the receptacle, and the chamfer is configured as a wear indicator and provides clearance with respect to a feature on the second boom member.
15. The boom assembly of claim 9 wherein the wearpad does not include any openings for receiving fasteners.
16. A boom assembly comprising:
a first boom member;
a second boom member that is slidable relative to the first boom member in a first direction;
a frame attached to the first boom member, the frame at least partially defining a receptacle;
a closure member that is attachable to the first boom member in a fixed position proximate the frame and movable away from the fixed position, wherein the closure member cooperates with the frame to define a retaining structure when the closure member is positioned in the fixed position; and
a planar wearpad that is insertable into the receptacle in the first direction when the closure member is moved away from the fixed position and the second boom member is positioned on the first boom member, such that the wearpad is positionable between the first boom member and the second boom member, wherein the wearpad has a first surface and a second surface that extends at an angle with respect to the first surface, and wherein the first and second surfaces contact the second boom member when the wearpad is inserted into the receptacle;
wherein the frame and the closure member inhibit lateral movement of the wearpad in directions parallel to the plane of the wearpad, and allow movement of the wearpad in a direction transverse to the plane of the wearpad, when the wearpad is positioned in the receptacle and the closure member is positioned in the fixed position, and wherein the second boom member inhibits movement of the wearpad in the direction transverse to the plane of the wearpad;
and wherein the closure member is attachable to the first boom member in the fixed position with one or more fasteners that extend in the first direction, and the first boom member has a slot that permits movement of the one or more fasteners in a direction transverse to the first direction.
17. The boom assembly of claim 16 wherein the second surface is generally perpendicular to the first surface.