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公开(公告)号：US11939868B2
公开(公告)日：2024-03-26
申请号：US18189511
申请日：2023-03-24
摘要： A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.
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公开(公告)号：US11613993B2
公开(公告)日：2023-03-28
申请号：US16932353
申请日：2020-07-17
摘要： A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.
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公开(公告)号：US10989050B2
公开(公告)日：2021-04-27
申请号：US16820224
申请日：2020-03-16
IPC分类号： E21C27/00 , E21C27/20 , E21D9/10 , E21C27/02 , E02F9/28 , E02F5/18 , B26D1/00 , E21B3/02 , E21C25/06 , E21C25/18 , E21C27/16 , E21C31/02 , E02F5/20 , E21B3/03
摘要： A cutting device for engaging a rock face includes a disc body supported for rotation about an axis of rotation, and a plurality of peripheral portions removably secured to the disc body. Each of the peripheral portions including a plurality of cutting bits positioned on a peripheral edge. The peripheral edge of each peripheral portion is aligned with the peripheral edges of adjacent peripheral portions.
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公开(公告)号：US11499426B2
公开(公告)日：2022-11-15
申请号：US17072351
申请日：2020-10-16
IPC分类号： E21C35/00 , E21C27/20 , E21C35/183 , E21D9/10 , E21C27/02 , E02F9/28 , E02F5/18 , B26D1/00 , E21B3/02 , E21C25/06 , E21C25/18 , E21C27/16 , E21C31/02 , E02F5/20 , E21B3/03
摘要： A cutting device for cutting rock includes a disc and a plurality of cutting elements secured to the disc. The disc is supported for rotation about an axis of rotation, and the disc includes a peripheral edge extending around the axis of rotation. The plurality of cutting elements are spaced apart along the peripheral edge of the disc and positioned in a cutting plane. Each of the cutting elements includes a base portion and a cutting portion including a cutting edge, and the cutting portion has a width that is larger than a width of the base portion.
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公开(公告)号：US20200347723A1
公开(公告)日：2020-11-05
申请号：US16932353
申请日：2020-07-17
摘要： A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.
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公开(公告)号：US20210032989A1
公开(公告)日：2021-02-04
申请号：US17072351
申请日：2020-10-16
摘要： A cutting device for cutting rock includes a disc and a plurality of cutting elements secured to the disc. The disc is supported for rotation about an axis of rotation, and the disc includes a peripheral edge extending around the axis of rotation. The plurality of cutting elements are spaced apart along the peripheral edge of the disc and positioned in a cutting plane. Each of the cutting elements includes a base portion and a cutting portion including a cutting edge, and the cutting portion has a width that is larger than a width of the base portion.
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公开(公告)号：US10808531B2
公开(公告)日：2020-10-20
申请号：US15606696
申请日：2017-05-26
IPC分类号： E21C25/00 , E21C25/18 , E21C27/02 , E02F9/28 , E21C27/20 , E21B3/02 , E02F5/20 , E21B3/03 , E21D9/10 , E02F5/18 , B26D1/00 , E21C25/06 , E21C27/16 , E21C31/02
摘要： A cutting device for cutting rock includes a disc and a plurality of cutting elements secured to the disc. The disc is supported for rotation about an axis of rotation, and the disc includes a peripheral edge extending around the axis of rotation. The plurality of cutting elements are spaced apart along the peripheral edge of the disc and positioned in a cutting plane. Each of the cutting elements includes a base portion and a cutting portion including a cutting edge, and the cutting portion has a width that is larger than a width of the base portion.
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公开(公告)号：US20230228192A1
公开(公告)日：2023-07-20
申请号：US18189511
申请日：2023-03-24
摘要： A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.
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公开(公告)号：US20200217198A1
公开(公告)日：2020-07-09
申请号：US16820224
申请日：2020-03-16
摘要： A cutting device for engaging a rock face includes a disc body supported for rotation about an axis of rotation, and a plurality of peripheral portions removably secured to the disc body. Each of the peripheral portions including a plurality of cutting bits positioned on a peripheral edge. The peripheral edge of each peripheral portion is aligned with the peripheral edges of adjacent peripheral portions.
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