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公开(公告)号：US20200269182A1
公开(公告)日：2020-08-27
申请号：US16643738
申请日：2018-09-05
申请人： HUSQVARNA AB
摘要： The present disclosure provides a method of operating a separator (1,1a, 1b) for separating particles from a particle-laden airflow. The method comprises receiving, in the controller (18), a separation unit status signal from the separation unit status sensor (16a, 16b, 16c, 16d), deriving, in the controller (18), separator status data based on the separation unit status signal, communicating, via the communication device (19), the separator status data to the external unit (1a, 1b, 26), receiving, via the communication device (19), incoming control data from the external unit (1a, 1b, 26), determining, in the controller (18), based on the separator status data and based on the incoming control data, whether to initiate separating unit maintenance, and selectively initiating separating unit maintenance based on said determination. The disclosure also provides a separator for implementing the method and a system comprising two or more such separators.
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公开(公告)号：US11633831B2
公开(公告)日：2023-04-25
申请号：US16205545
申请日：2018-11-30
申请人： HUSQVARNA AB
摘要： The present disclosure relates to a grinding head for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head comprises a lower casing member, comprising a lower support and an upwardly extending edge portion, and an upper casing member, comprising an upper cover and a downwardly extending edge portion, wherein the upper casing member is joinable to the lower casing member by causing axially distal portions of the edge portions to bear on each other.
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公开(公告)号：US11607640B2
公开(公告)日：2023-03-21
申请号：US16643738
申请日：2018-09-05
申请人： HUSQVARNA AB
摘要： The present disclosure provides a method of operating a separator (1,1a, 1b) for separating particles from a particle-laden airflow. The method comprises receiving, in the controller (18), a separation unit status signal from the separation unit status sensor (16a, 16b, 16c, 16d), deriving, in the controller (18), separator status data based on the separation unit status signal, communicating, via the communication device (19), the separator status data to the external unit (1a, 1b, 26), receiving, via the communication device (19), incoming control data from the external unit (1a, 1b, 26), determining, in the controller (18), based on the separator status data and based on the incoming control data, whether to initiate separating unit maintenance, and selectively initiating separating unit maintenance based on said determination. The disclosure also provides a separator for implementing the method and a system comprising two or more such separators.
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公开(公告)号：US11701751B2
公开(公告)日：2023-07-18
申请号：US16953730
申请日：2020-11-20
申请人： HUSQVARNA AB
CPC分类号： B24B41/002 , A47L11/14 , A47L11/16 , A47L11/4069 , B24B7/186 , B24B47/12
摘要： The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing number (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.
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公开(公告)号：US11185808B2
公开(公告)日：2021-11-30
申请号：US16643743
申请日：2018-09-05
申请人： HUSQVARNA AB
发明人： Daniel Gustavsson
摘要： The present document discloses a method of operating a separator (1) for separating particles from a particle-laden airflow, wherein the separator comprises a flow path (F), a separation unit (11, 12, 13), arranged in the flow path (F), an impeller (14), arranged in the flow path (F), and an electric motor (15), configured to drive the impeller (14) so as to generate the airflow in the flow path (F). The method comprises initiating a power supply to the electric motor (15), measuring a pressure in the flow path using a pressure sensor (16a, 16b, 16c, 16d), determining a direction of the airflow based on the pressure, and if the direction of the airflow does not correspond to a desired direction of the airflow, then changing a phase sequence of the power supply to the electric motor (15). The document further discloses a separator (1) and a system comprising a separator (1) and a floor grinding machine (2).
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公开(公告)号：US20190184514A1
公开(公告)日：2019-06-20
申请号：US16309591
申请日：2017-06-01
申请人： HUSQVARNA AB
CPC分类号： B24B7/18 , B24B49/00 , B24B49/006 , B24B49/10 , B24B49/16
摘要： This document provides a method of operating a floor grinding machine 100. The method comprises providing a grinding machine 100 comprising a frame 101, a motor 102 and at least one grinding element 1, causing the motor to drive the grinding element so as to rotate at a rotational speed, while in contact with a floor surface to grind, polish or mill the floor surface, determining an actual value of a motor operating parameter, determining a nominal value of the motor operating parameter, comparing the actual value of the motor operating parameter with the nominal value of the motor operating parameter, if a difference between the actual value of the motor operating parameter and the nominal value of the motor operating parameter exceeds a predetermined difference threshold, determining at least one grinding parameter to be adjusted, and causing the at least one grinding parameter to be adjusted.
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公开(公告)号：US20210069857A1
公开(公告)日：2021-03-11
申请号：US16953730
申请日：2020-11-20
申请人： HUSQVARNA AB
摘要： The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing number (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.
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公开(公告)号：US20190202025A1
公开(公告)日：2019-07-04
申请号：US16305997
申请日：2017-06-01
申请人： HUSQVARNA AB
IPC分类号： B24B41/047 , B24B7/18 , B24B47/12 , F16H7/08
CPC分类号： B24B41/047 , B24B7/186 , B24B27/0076 , B24B47/10 , B24B47/12 , F16H7/08 , F16H2007/0842 , F16H2007/0865
摘要： The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing member (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.
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9.发明申请公开(公告)号：US20190091830A1
公开(公告)日：2019-03-28
申请号：US16205545
申请日：2018-11-30
申请人： HUSQVARNA AB
摘要： The present disclosure relates to a grinding head for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head comprises a lower casing member, comprising a lower support and an upwardly extending edge portion, and an upper casing member, comprising an upper cover and a downwardly extending edge portion, wherein the upper casing member is joinable to the lower casing member by causing axially distal portions of the edge portions to bear on each other.
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公开(公告)号：US20240269800A1
公开(公告)日：2024-08-15
申请号：US18560194
申请日：2022-04-25
申请人： HUSQVARNA AB
CPC分类号： B24B49/12 , B24B7/186 , B24B55/052
摘要： A floor grinder (100) for processing a concrete surface (101), the floor grinder comprising one or more rotatable abrasive tool holders (150) arranged in a plane (P) to hold respective abrasive tools (210, 510), at least one power source (110, 120) arranged to drive the tool holders (150), a cover body (130) fixedly arranged in relation to the plane (P), and a dust skirt (140) movably attached around a rim of the cover body (130) to engage the concrete surface (101) during floor grinding operation, where the floor grinder (100) comprises at least one tool wear indicator (160) configured to indicate a current tool wear based on a displacement of the dust skirt (140) relative to the cover body (130) in a direction (D) normal to the plane (P).
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