WO2010117160A2 - 윈치 및 이를 포함하는 자율이동장치 - Google Patents
윈치 및 이를 포함하는 자율이동장치 Download PDFInfo
- Publication number
- WO2010117160A2 WO2010117160A2 PCT/KR2010/002015 KR2010002015W WO2010117160A2 WO 2010117160 A2 WO2010117160 A2 WO 2010117160A2 KR 2010002015 W KR2010002015 W KR 2010002015W WO 2010117160 A2 WO2010117160 A2 WO 2010117160A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller
- wire
- drum
- drive shaft
- winch
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
- B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/30—Rope, cable, or chain drums or barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
- B66D1/39—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of axially-movable drums or barrels
Definitions
- the present invention relates to a winch. More particularly, the present invention relates to a winch configured to precisely control the length of a wire and an autonomous mobile device including the same.
- an autonomous mobile device equipped with a work robot is used to automatically perform work such as welding or cutting inside a block of a hull.
- the autonomous platform is operated to move inside the hull block using a plurality of wires to a platform on which the robot can be mounted.
- the platform can freely move inside the hull block by repeatedly performing a process of winding or unwinding the wires coupled to the hull block inner wall surface. Furthermore, the precise control of the length of the wire wound or unwound by the winch allows the platform to move to the desired position inside the hull block.
- the wire between the wire drum and the wire discharge port may sag or sag.
- a winch that is generally used, when the wire drum constituting the winch rotates in a direction in which the wire is released without tensioning the wire, the wire tightly wound on the wire drum is loosened and a phenomenon occurs that the wire drum is lifted from the outer peripheral surface of the wire drum. do.
- the present invention has been made to solve the above problems, and to precisely control the length of the wire by preventing the sagging of the wire and the loosening of the wire on the wire drum generated when the wire drum rotates in the unwinding direction
- An object of the present invention is to provide a configured winch and an autonomous mobile device including the same.
- the drive motor A drum drive shaft which receives the driving force from the drive motor and rotates the drum; A wire drum rotating by the drum drive shaft; A roller drive shaft disposed in parallel with the drum drive shaft and rotated in a direction different from the drum drive shaft by the drive motor; A roller connected to the roller drive shaft and supporting a wire wound on the wire drum or released from the wire drum; And a one-way clutch installed on the roller drive shaft such that the driving force transmitted from the roller drive shaft to the roller is interrupted when the wire drum rotates in the winding direction of the wire.
- a winch is provided which receives a driving force from the roller drive shaft and rotates the wire positioned between the wire drum and the roller to maintain tension.
- a torque limiter may be installed on the roller drive shaft.
- It may further include a load cell (load cell) disposed adjacent to the roller to measure the tension of the wire supported by the roller.
- load cell load cell
- the pinch roller may further include a pinch roller contacting the outer circumference of the roller and having a rotating shaft parallel to the rotating shaft of the roller to prevent the wire supported by the roller from escaping from the roller.
- an autonomous mobile device that can move in a certain workspace, the mobile platform located inside the workspace;
- the above-mentioned winch installed on the mobile platform; And one end is coupled to the support that defines the workspace, the other end is provided with an autonomous mobile device comprising a wire coupled to the winch.
- the winch can be precisely controlled for the length of the wire by preventing the wires from being entangled or disturbed by the sagging or sagging of the wire.
- the autonomous mobile device including a winch capable of precise control of the length of the wound or unwound wire can be accurately moved to a desired position within the workspace.
- FIG. 1 is a view schematically showing an autonomous mobile device including a winch according to an embodiment of the present invention
- FIG. 2 is a perspective view of a winch according to an embodiment of the present invention
- FIG. 3 is a cross-sectional view taken along line II of FIG. 2;
- FIG. 4 is a view schematically showing a longitudinal section of the roller drive shaft included in the winch according to an embodiment of the present invention
- 5 and 6 are views showing the operating state of the winch according to an embodiment of the present invention.
- FIG. 1 is a view schematically showing an autonomous mobile device including a winch according to an embodiment of the present invention.
- the autonomous mobile device 100 is free to move in a certain work space 107, such as inside the block of the hull.
- the autonomous mobile device 100 includes a mobile platform 105, a winch 110, and a wire 92.
- the mobile platform 105 is located inside the workspace 107 during the movement. do.
- a work device 106 that can perform operations such as welding, cutting and painting may be mounted to be movable in the longitudinal direction of the mobile platform 105.
- a work device capable of performing operations such as blasting and grit collection may be mounted on the lower side of the mobile platform 105 to be movable in the longitudinal direction of the mobile platform 105.
- the mobile platform 105 is provided with a plurality of winches 110.
- the winch 110 is coupled to the other end of the wire 92, one end of which is coupled to the support 108 that defines the workspace 107.
- the support defining the working space means the same as the partition wall partitioning the block of the hull, in addition to the various forms of the support is applied to this embodiment.
- the autonomous mobile device 100 configured as described above uses the winch 110 to wind or unwind the wire 92 coupled with the winch 110 so that the moving platform 105 can freely move inside the workspace 107. It works.
- the winch 110 is configured to precisely adjust the length of the wire 92 to be wound or unwound. Accordingly, the autonomous platform 100 is operated to precisely move the moving platform 105 to a desired position of the workspace 107.
- FIG. 2 is a perspective view of the winch according to an embodiment of the present invention
- Figure 3 is a cross-sectional view of the I-I of FIG. 2
- the winch 110 according to an embodiment of the present invention includes a drive motor 10, a drum drive shaft 20, a wire drum 30, a roller drive shaft 40, and a roller 50.
- a one way clutch 60 is included in the winch 110 according to an embodiment of the present invention.
- the drive motor 10 provides a driving force for rotating the drum drive shaft to be described later. 2, the drive motor 10 is connected to the speed reducer 14 and the motor brake 16. In addition, the drive motor 10 may be connected to an encoder 18 for measuring the amount of rotation of the drive motor rotation shaft. However, a reducer, a motor brake, and an encoder connected to the drive motor 10 may be selectively applied.
- the drive motor 10 is installed in the support frame 70.
- the support frame 70 is a support installed on the moving platform 105 (see FIG. 1), and is provided with a drum drive shaft 20 that rotates by receiving a driving force from the driving motor 10.
- the motor gear 12 is installed at one end of the drive motor 10, the motor gear 12 and at one end of the drum drive shaft 20 The first drum gear 22 to be engaged is provided.
- a wire drum 30 is installed in the drum drive shaft 20.
- the wire drum 30 is configured to wind the wire 92 and has a cylindrical shape.
- the wire drum 30 is installed on the drum drive shaft 20 to be movable along the drum drive shaft 20 while rotating by the drum drive shaft 20.
- the drum drive shaft 20 and the wire drum 30 may be combined in a variety of ways, such as ball spline method.
- the wire drum 30 is formed with a first threaded portion 36 on the outer circumferential surface of both ends of the longitudinal direction.
- the first threaded portion 36 engages with a second threaded portion 96 formed in the guide portion 90 described later.
- the first threaded portion 36 is not necessarily formed at both ends of the wire drum 30, but may be formed at one end of the wire drum 30.
- a guide part 90 disposed in parallel with the drum drive shaft 20 is formed at one side of the drum drive shaft 20.
- the guide unit 90 may be integrally formed with the support frame 70 or manufactured separately.
- the guide portion 90 has a second threaded portion 96 extending in the longitudinal direction of the drum drive shaft 20 on the side opposite to the drum drive shaft 30 and engaged with the first threaded portion 36.
- the wire drum 30 may be screwed along the guide portion 90 while the first threaded portion 36 is engaged with the second threaded portion 96.
- the wire drum 30 is screwed while rotating along the guide portion 90 so that the wire 92 is sequentially wound on the wire drum 30 in an aligned state or released from the wire drum 30 in sequence.
- Threads formed in the first threaded portion 36 and the second threaded portion 96 each have a constant pitch. In this case, when the wire drum 30 rotates once, the distance that the wire drum 30 moves along the guide portion 90 is kept constant.
- the winch 110 is perpendicular to a predetermined position in the longitudinal direction of the guide portion 90, for example, the longitudinal direction of the guide portion 90 when the wire drum 30 moves along the guide portion 90, and has a wire discharge port ( The wire 92 acts to wind or unwind from the wire drum 30 at a planar position past the center of 21.
- the roller drive shaft 40 is disposed in parallel with the drum drive shaft 20.
- the roller drive shaft 40 is a configuration for transmitting a driving force to the roller 50 to be described later, and rotates in a direction different from the drum drive shaft 20 by the drive motor 10.
- a second drum gear engaged with a roller gear 44 provided at one end of the roller drive shaft 40 is provided at a side of the first drum gear 22 in contact with the drum drive shaft 20. 24 is formed. Accordingly, the driving force of the driving motor 10 is transmitted to the roller drive shaft 40, and the roller drive shaft 40 rotates in a direction different from the rotation direction of the drum drive shaft 20.
- the roller drive shaft 40 is connected to the roller 50.
- the roller 50 supports the wire 92 wound on the wire drum 30 or released from the wire drum 30.
- the roller 50 is rotatably installed on the roller support 58, and the end of the roller support 58 is installed on the support frame 70.
- the wire 92 may be wound around the wire drum 30 while being supported by the roller 50 through the discharge port 71 formed in the support frame 70.
- the wire 92 may pass through the discharge port 71 while being supported by the roller 50 while being released from the wire drum 30.
- the winch 110 further includes a pinch roller 54 having a rotating shaft parallel to the rotating shaft of the roller 50.
- the pinch roller 54 prevents the wire 92 supported by the roller 50 from deviating from the roller 50.
- the pinch roller 54 is disposed in contact with or adjacent to the outer periphery of the roller 50, and is rotatably installed on the roller support 58.
- the winch 110 further includes a load cell 80 disposed adjacent to the roller 50.
- the load cell 80 is for measuring the tension of the wire 92 supported by the roller 50 and is installed at the end of the roller support part 80 on which the roller 50 is installed.
- the roller 50 When tension is applied to the wire supported by the roller 50, the roller 50 is applied to the load cell 80 by the wire. In this case, the tension of the wire is measured through the load applied to the load cell 80.
- a one way clutch 60 is installed on the roller drive shaft 40.
- the one-way clutch 60 rotates in the direction in which the wire drum 30 winds the wire 92
- the driving force transmitted to the roller 50 by the roller drive shaft 40 is interrupted.
- the 30 rotates in the unwinding direction of the wire 92
- the driving force is actuated by the roller drive shaft 40 to the roller 50.
- the roller 50 is wound around the wire drum 30 without being affected by the driving force transmitted by the roller drive shaft 40 ( 92) due to friction with it.
- the roller 50 rotates by a driving force transmitted by the roller drive shaft 40.
- the roller 50 rotates in the direction in which the wire 92 is discharged to the outside through the discharge port 71.
- the roller in order to maintain tension of the wire 92 positioned between the roller 50 and the wire drum 30 in a situation where the wire 92 is released from the wire drum 30, the roller is released at the same time.
- the wire which is longer than the length of the wire should be rotated to pull the discharge port.
- the gear ratio of the roller gear 44 and the second drum gear 24 can be adjusted appropriately.
- a torque limiter 42 is installed on the roller drive shaft 40.
- the torque limiter 42 prevents excessive driving force from being transmitted to the roller 50 by the roller drive shaft 40.
- the excessive driving force is a slip between the roller 50 that rotates in the direction of discharging the wire 92 when the wire drum 50 rotates in the unwinding direction of the wire and the wire 92 that is supported by the roller 50.
- the driving force is at least equal to the driving force at the moment of occurrence.
- roller drive shaft 40 is divided into a total of three parts.
- roller drive shaft 40 is the first shaft 41 is coupled to the roller gear 44 at the end, the second shaft 43 and one-way connected to the first shaft 41 by the torque limiter 42
- a third shaft 45 is connected to the second shaft 43 by the clutch 60.
- the torque limiter 42 is configured such that the joint 47, which transmits the rotational force, slips or falls when the load acts more than specified.
- the one-way clutch 60 has an inner ring 46 coupled to the second shaft 43 and an outer ring 48 connected to the third shaft 45.
- the outer ring 48 of the one-way clutch 60 may be connected to the third shaft 45 by a coupling 49 for preventing the declination and the eccentricity between the second shaft 43 and the third shaft 45. Can be.
- the outer ring 48 of the one-way clutch 60 may be directly coupled to the third shaft 45.
- winch 110 operates to wind wire 92.
- the wire drum 30 rotates in the winding direction of the wire 92.
- the driving force transmitted from the roller drive shaft 40 to the roller 50 by the one-way clutch 60 is interrupted. Accordingly, the roller 50 rotates in the direction in which the wire 92 is wound to the wire drum 30 due to friction with the wire 92.
- winch 110 operates to unwind wire 92.
- the wire drum 30 rotates in the direction of loosening the wire 92.
- the roller 50 receives the driving force by the roller drive shaft 40 (see FIG. 2) and rotates in the direction in which the wire 92 passes through the discharge port 71 to the outside.
- the roller 50 rotates to apply tension to the wire 92 positioned between the roller 50 and the wire drum 30.
- the torque limiter 42 (see FIG. 2) operates to prevent excessive driving force from being transmitted to the roller 50 by the roller drive shaft 40 (see FIG. 2). This prevents the slip generated between the roller 50 and the wire 92 supported by the roller 50.
- the winch according to an embodiment of the present invention sags or sags the wire generated in the winch by maintaining the tension between the wire and the wire drum, even though the wire drum rotates in the unwinding direction. This does not happen.
- the winch 110 may be prevented from being entangled or disturbed with each other due to sagging or sagging of the wire.
- the winch according to an embodiment of the present invention enables precise control of the wire length.
- the autonomous mobile device including a winch capable of precise control of the length of the wound or unwound wire can be accurately moved to a desired position in the workspace.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Abstract
Description
Claims (6)
- 구동모터;상기 구동모터에 의해 회전하는 드럼 구동축;상기 드럼 구동축에 의해 회전하는 와이어 드럼;상기 드럼 구동축과 평행하게 배치되고, 상기 구동모터에 의해 상기 드럼 구동축과 상이한 방향으로 회전하는 롤러 구동축;상기 롤러 구동축과 연결되고, 상기 와이어 드럼에 감기거나 상기 와이어 드럼으로부터 풀리는 와이어를 지지하는 롤러; 및상기 와이어 드럼이 와이어를 감는 방향으로 회전시 상기 롤러 구동축에 의해 상기 롤러로 전달되는 구동력이 차단되도록 상기 롤러 구동축 상에 설치되는 원웨이 클러치(one way clutch)를 포함하고,상기 롤러는 상기 와이어 드럼이 와이어를 푸는 방향으로 회전 시 상기 롤러 구동축에 의해 구동력을 전달받아 상기 와이어 드럼 및 상기 롤러 사이에 위치하는 와이어가 장력을 유지하도록 회전하는 것을 특징으로 하는 윈치.
- 제1항에 있어서,상기 구동모터의 일 단부에 설치되는 모터 기어;상기 드럼 구동축의 일 단부에 설치되고 상기 모터 기어와 치합하는 제 1 드럼기어; 및상기 롤러 구동축의 일 단부에 설치되는 롤러 기어를 포함하고,상기 드럼 구동축과 접하는 상기 제 1 드럼기어의 측부에는 상기 롤러 기어와 치합하는 제 2 드럼기어가 형성되는 것을 특징으로 하는 윈치.
- 제1항에 있어서,상기 롤러 구동축에 설치되는 토크 리미터(torque limiter)를 더 포함하는 것을 특징으로 하는 윈치.
- 제1항에 있어서,상기 롤러에 의해 지지되는 와이어의 장력을 측정하기 위해 상기 롤러와 인접하여 배치되는 로드셀(load cell)을 더 포함하는 것을 특징으로 하는 윈치
- 제1항에 있어서,상기 롤러에 의해 지지되는 와이어가 상기 롤러로부터 벗어나는 것을 방지하도록 상기 롤러의 외주연과 접하거나 인접하여 배치되고, 상기 롤러의 회전축과 평행한 회전축을 구비한 핀치롤러를 더 포함하는 것을 특징으로 하는 윈치.
- 일정한 작업공간에서 이동가능한 자율이동장치로서,상기 작업공간의 내부에 이동가능하게 위치하는 이동플랫폼;상기 이동플랫폼에 설치되는 제1항 내지 제5항 중 어느 한 항에 따른 윈치; 및일 단이 상기 작업공간을 한정하는 지지체에 결합되고, 타 단이 상기 윈치에 결합되는 와이어를 포함하는 자율이동장치.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012504567A JP5540074B2 (ja) | 2009-04-06 | 2010-04-01 | ウインチ及びこれを含む自律移動装置 |
CN201080016885.4A CN102387979B (zh) | 2009-04-06 | 2010-04-01 | 绞盘以及包含绞盘的自主移动设备 |
US13/263,188 US8616529B2 (en) | 2009-04-06 | 2010-04-01 | Winch and autonomous mobile apparatus including the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2009-0029628 | 2009-04-06 | ||
KR1020090029628A KR101086384B1 (ko) | 2009-04-06 | 2009-04-06 | 윈치 및 이를 포함하는 자율이동장치 |
Publications (2)
Publication Number | Publication Date |
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WO2010117160A2 true WO2010117160A2 (ko) | 2010-10-14 |
WO2010117160A3 WO2010117160A3 (ko) | 2010-12-23 |
Family
ID=42936684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2010/002015 WO2010117160A2 (ko) | 2009-04-06 | 2010-04-01 | 윈치 및 이를 포함하는 자율이동장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8616529B2 (ko) |
JP (1) | JP5540074B2 (ko) |
KR (1) | KR101086384B1 (ko) |
CN (1) | CN102387979B (ko) |
WO (1) | WO2010117160A2 (ko) |
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CN102887451A (zh) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | 一种抽油用卷扬机 |
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Also Published As
Publication number | Publication date |
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KR20100111185A (ko) | 2010-10-14 |
US8616529B2 (en) | 2013-12-31 |
CN102387979B (zh) | 2014-10-29 |
US20120048152A1 (en) | 2012-03-01 |
JP5540074B2 (ja) | 2014-07-02 |
JP2012522706A (ja) | 2012-09-27 |
KR101086384B1 (ko) | 2011-11-23 |
CN102387979A (zh) | 2012-03-21 |
WO2010117160A3 (ko) | 2010-12-23 |
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