A trenching assembly used to cut a narrow trench in the ground surface. The trenching assembly comprises an attachment frame connected to a hood assembly via a linkage assembly. The attachment frame may be attached to the rear end of a work machine. A rotatable blade is disposed within a cavity defined by the hood assembly. The hood assembly may rotate about two different axes relative to the linkage assembly, and the linkage assembly may rotate about two different axes relative to the attachment frame. The trenching assembly uses a pair of accumulators to hydraulically rotate the linkage assembly about a horizontal axis relative to the frame in response changes in depth of the ground surface being cut by the blade. The linkage assembly may be hydraulically rotated using the accumulators without input from the operator.

A trenching assembly used to cut a narrow trench in the ground surface. The trenching assembly comprises an attachment frame connected to a hood assembly via a linkage assembly. The attachment frame may be attached to the rear end of a work machine. A rotatable blade is disposed within a cavity defined by the hood assembly. The hood assembly may rotate about two different axes relative to the linkage assembly, and the linkage assembly may rotate about two different axes relative to the attachment frame. The trenching assembly uses a pair of accumulators to hydraulically rotate the linkage assembly about a horizontal axis relative to the frame in response changes in depth of the ground surface being cut by the blade. The linkage assembly may be hydraulically rotated using the accumulators without input from the operator.

Microtrenching blades and methods of manufacturing the same. A blade includes a blade body comprising a cutting edge, wherein the cutting edge is disposed around a perimeter of the blade body. The blade includes a center arbor bore defining a hole through the blade body, wherein the blade rotates about an axis of rotation disposed in the center arbor bore. The blade includes a plurality of cutters attached to the cutting edge. The blade is such that the cutting edge is separated into a plurality of blade segments, and further such that the plurality of blade segments each comprises two or more of the plurality of cutters.

Microtrenching blades and methods of manufacturing the same. A blade includes a blade body comprising a cutting edge, wherein the cutting edge is disposed around a perimeter of the blade body. The blade includes a center arbor bore defining a hole through the blade body, wherein the blade rotates about an axis of rotation disposed in the center arbor bore. The blade includes a plurality of cutters attached to the cutting edge. The blade is such that the cutting edge is separated into a plurality of blade segments, and further such that the plurality of blade segments each comprises two or more of the plurality of cutters.

Microtrenching blades and methods of manufacturing the same. A blade a first blade portion comprising a center arbor bore defining a hole through the blade and a second blade portion comprising a plurality of blade segments, wherein the second blade portion is distal to the first blade portion relative to the center arbor bore. The blade includes a plurality of blade scoops disposed around a perimeter of the blade. The blade is such that the plurality of blade segments and the plurality of blade scoops are arranged such that two of the plurality of blade segments are separated by a blade scoop.

Microtrenching blades and methods of manufacturing the same. A blade a first blade portion comprising a center arbor bore defining a hole through the blade and a second blade portion comprising a plurality of blade segments, wherein the second blade portion is distal to the first blade portion relative to the center arbor bore. The blade includes a plurality of blade scoops disposed around a perimeter of the blade. The blade is such that the plurality of blade segments and the plurality of blade scoops are arranged such that two of the plurality of blade segments are separated by a blade scoop.

Microtrenching blades and methods of manufacturing the same. A blade includes a blade body comprising a cutting edge, wherein the cutting edge is disposed around a perimeter of the blade body, and wherein the cutting edge comprises a centerline and a width. The blade comprises a plurality of cutters attached to the cutting edge. The blade is such that three or more of the plurality of cutters are each attached to the cutting edge of the blade body at a different position relative to the centerline of the cutting edge of the blade body.

Microtrenching blades and methods of manufacturing the same. A blade includes a blade body comprising a cutting edge, wherein the cutting edge is disposed around a perimeter of the blade body, and wherein the cutting edge comprises a centerline and a width. The blade comprises a plurality of cutters attached to the cutting edge. The blade is such that three or more of the plurality of cutters are each attached to the cutting edge of the blade body at a different position relative to the centerline of the cutting edge of the blade body.

The invention relates to a trench cutter having at least one pair of cutting wheels, at least one bearing plate on which the cutting wheels of a pair are rotatably arranged on the two sides of the bearing plate, a base frame on the underside of which the at least one bearing plate is attached, and a cutting wheel drive for driving the cutting wheels via a transmission lubricated with transmission oil in the bearing plate. According to the invention it is provided that at least one heat exchanger is arranged above the bearing plate and that for cooling the transmission oil, an oil circuit is formed to which the at least one heat exchanger is connected above the bearing plate.

The invention relates to a trench cutter having at least one pair of cutting wheels, at least one bearing plate on which the cutting wheels of a pair are rotatably arranged on the two sides of the bearing plate, a base frame on the underside of which the at least one bearing plate is attached, and a cutting wheel drive for driving the cutting wheels via a transmission lubricated with transmission oil in the bearing plate. According to the invention it is provided that at least one heat exchanger is arranged above the bearing plate and that for cooling the transmission oil, an oil circuit is formed to which the at least one heat exchanger is connected above the bearing plate.