WO2018051808A1 - 弾性クローラとクローラ式走行装置 - Google Patents
弾性クローラとクローラ式走行装置 Download PDFInfo
- Publication number
- WO2018051808A1 WO2018051808A1 PCT/JP2017/031529 JP2017031529W WO2018051808A1 WO 2018051808 A1 WO2018051808 A1 WO 2018051808A1 JP 2017031529 W JP2017031529 W JP 2017031529W WO 2018051808 A1 WO2018051808 A1 WO 2018051808A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crawler
- elastic
- width direction
- inclined surface
- wheel
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/24—Tracks of continuously flexible type, e.g. rubber belts
- B62D55/253—Tracks of continuously flexible type, e.g. rubber belts having elements interconnected by one or more cables or like elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/12—Arrangement, location, or adaptation of driving sprockets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/24—Tracks of continuously flexible type, e.g. rubber belts
- B62D55/244—Moulded in one piece, with either smooth surfaces or surfaces having projections, e.g. incorporating reinforcing elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/26—Ground engaging parts or elements
Definitions
- the present invention relates to an elastic crawler and a crawler type traveling device.
- the gauge width is the length from end to end of the left and right elastic crawlers mounted on the heavy machinery, and the lateral stability of the crawler type traveling device having a longer gauge width increases.
- the cored bar is embedded in the rubber crawler at regular intervals, and the steel cord circulates in the crawler on the grounding side of the cored bar. And it is distributed and embedded in the width direction.
- the left and right lugs are arranged in a staggered manner, and both the left and right lugs provide a horizontal grounding surface.
- an elastic crawler belt is formed in a shape in which the ground contact surface on the tread surface projection portion side is lifted when there is no load, and uniforms the contact pressure distribution when the contact surface is pressed by the pressing force of the wheel and touches the horizontal surface. Is known by.
- FIG. 5 shows a chaotic vehicle TP (used in steelworks, also called a topped car) that is being considered as a specific object.
- the chaos car TP is a special freight car for carrying pig iron.
- the work of dismantling and transporting the interior brick BL in the chaos car TP relied on human hands.
- the crawler type traveling device CM can be effectively used, and it has been found that there is a problem in application in the current crawler type traveling device.
- FIG. 6 is a schematic view of the vicinity of the bottom of FIG. 5B, but on the bottom surface where the lugs are curved using a crawler 100 that is symmetrical in the crawler width direction as shown in FIG.
- the outer part of the vehicle body of the crawler type traveling device CM is always in an upward stress due to contact with the cylindrical wall surface, and therefore, as shown in FIG. In the drawing, stress acts on the position indicated by P), and the ear is cut off, and the elastic crawler itself is easily detached.
- the present invention provides an elastic crawler and a crawler-type traveling device that are unlikely to cause wheel removal or ear loss even when working in a large cylindrical structure or on a greatly curved ground. For the purpose.
- An elastic crawler is a crawler main body made of an endless elastic body that is stepped on by wheels having left and right treads, and an elastic crawler in which a plurality of lugs are arranged on the grounding surface of the crawler main body.
- the crawler body has a portion on one side of the crawler width direction center position in the crawler width direction outside the tread surface that is the inner side of the wheel in the crawler width direction and within the range inside the tread surface that is the outer side.
- An inclined surface is formed to gradually reduce the crawler thickness by gradually shortening the distance in the height direction from the outer tread surface from the position toward the edge on one side of the crawler width direction. Is an elastic crawler that is not grounded.
- the elastic crawler since the crawler main body outside the vehicle body of the traveling device is less likely to receive excessive stress from the cylindrical wall surface, it is possible to reduce derailment and ear loss.
- the elastic crawler according to the second embodiment of the present invention is an elastic crawler characterized in that an inclined surface formed on one side of the crawler width direction center position of the crawler body forms a curved surface. .
- the stress from the cylindrical wall surface received by the crawler main body outside the vehicle body of the traveling device can be avoided more efficiently, and derailment and ear loss can be reduced, and the strength of the crawler main body can be increased.
- the crawler type traveling device is a crawler type traveling device that is mounted so that an inclined surface formed on one side of the crawler width direction center position of the crawler body is on the outer side of the machine body. Device.
- the crawler can be efficiently operated without causing the crawler to be removed from the wheel or to be cut off at the inside of the cylindrical structure.
- an elastic crawler and a crawler-type traveling device that are less likely to be derailed or cut out of ears even when working in a large cylindrical structure or on a greatly curved ground. Can be provided.
- FIG. 1A is a cross-sectional view in the width direction of the elastic crawler according to the first embodiment of the present invention
- FIG. 1B is a partial plan view of a ground contact surface
- FIG. 1C is a partial plan view of an inner peripheral surface
- 2A is a cross-sectional view in the width direction of the elastic crawler according to the second embodiment of the present invention
- FIGS. 2B and 2C are cross-sectional views in the width direction of the elastic crawler according to another embodiment
- FIG. 2D is according to the other embodiment.
- It is a fragmentary top view of the grounding surface of an elastic crawler.
- FIG. 3A is a cross-sectional view in the width direction of the elastic crawler according to the third embodiment of the present invention
- FIG. 3B is a partial plan view of the ground plane. It is an example of the crawler type traveling device with which the elastic crawler concerning some embodiments of the present invention is equipped.
- FIG. 5A is a longitudinal sectional view showing a crawler type traveling device working in a chaotic vehicle from the side
- FIG. 5B is a transverse sectional view
- FIG. 5C is a diagram showing a state where the chaotic vehicle is rotated
- FIG. 5D is an approach into the chaotic vehicle.
- -It is a figure which shows the mode at the time of leaving. It is a schematic diagram of FIG. 5B.
- FIG. 5A is an example of a vertical cross-sectional view of the crawler traveling device CM that is working in the chaotic vehicle TP.
- the chaos car TP is used to store and transport pig iron melted at steelworks. It is a steel structure with a torpedo-shaped cross section and a circular cross section with an inner diameter of around 3 m. Has been.
- the heat-resistant brick BL deteriorates, it is necessary to dismantle the inner wall surface and carry the brick out of the car.
- this work is performed using a crawler type traveling device CM with a vehicle height of around 1.5 m, work efficiency and safety will be improved. Turned out to be expensive.
- the elastic crawler receives a shearing force due to the elastic crawler being sandwiched between the corner portion of the outer end of the wheel and the cylindrical wall surface, and the same. There was a problem.
- FIG. 1A is a cross-sectional view in the width direction of a crawler according to a first embodiment of the present invention
- FIG. 1B is a ground plane side plan view
- FIG. 1C is an inner peripheral plane side plan view.
- An elastic crawler 1 according to the first embodiment includes a cored bar 3 embedded in a crawler body 2 which is an endless belt band formed of a rubber elastic body or the like at regular intervals in the crawler circumferential direction, and an elastic crawler.
- a plurality of lugs 4 projecting on the ground contact surface side, and an outer peripheral side of the cored bar 3 are distributed to the left and right of the engagement holes 5 that engage with the drive wheels of the traveling device, and the steel cord row 6 in the crawler circumferential direction. Is buried.
- the surfaces 2a, 2b, and 2c are surfaces that are stepped on by the tread surface of the wheel of the crawler type traveling device. Depending on the shape of the wheel, the surfaces 2a and 2c may be stepped on the tread surface, or the surface 2b may be stepped on the tread surface. To do. Any of the surfaces 2a, 2b, and 2c is a horizontal surface. In addition, depending on the wheel, the tops 8a and 8b of the guide protrusion 8 may be stepped on the tread surface. When mounted on the crawler type traveling device, the surface 2a and the top 8a are located outside and the surfaces 2c and 8b are located inside.
- An inclined surface 7a is formed on one side of the crawler body 2 in the width direction center position L from the vicinity of the crawler width direction center position toward the crawler width direction one side edge.
- the inclined surface 7a gradually decreases the crawler thickness by gradually reducing the height distance dp between the surface 2a and the top 8a.
- the inclination angle ⁇ of the inclined surface 7a is 20 ° with respect to the virtual horizontal plane H.
- the inclination angle ⁇ is appropriately in the range of 15 ° to 25 °, preferably in the range of 17 ° to 21 °. It can be changed.
- the range outside the surfaces 2a and 2c (in the drawing, outside the one-dot chain line T) is not continuous or continuous with the inclined surface 7a or the ground contact surface 7 in order to ensure the turning performance of the crawler type traveling device.
- the inclined surface 7a or the ground contact surface 7 is also retracted upward to reach the edge.
- the elastic crawler of the present embodiment is used when moving on a normal flat surface, when the chaotic wheel rotates around the rotation axis during work as shown in FIG. 5C, or into the chaotic vehicle as shown in FIG. 5D.
- the other side portion of the crawler width direction center position where the inclined surface is not formed as shown in FIG. 10 is in contact with the flat surface, and stable running can be performed even on the flat surface.
- the inclined surface is not grounded.
- FIG. 2 is a cross-sectional view in the width direction of the elastic crawler according to the second embodiment of the present invention, and is an example in which the inclined surface 7b on one side from the center position L in the width direction of the crawler body forms a curved surface.
- the stress from the cylindrical wall surface received by the elastic crawler can be avoided more efficiently, derailment and ear loss can be reduced, and the strength of the crawler body can be increased.
- 2B to 2D show other forms of elastic crawlers having lugs on the inclined surface 7a. 2B is a ZZ section, FIG.
- FIG. 2C is a YY section
- FIG. 2D is a partial plan view of a ground plane.
- the depression planes 2d and 2e sandwiched between the lugs 4a are parallel to the treads 2a and 2c on the left and right sides with respect to the center position L in the width direction of the crawler body, and are set as horizontal planes existing in the same plane. Is good.
- FIG. 3 is a cross-sectional view in the width direction of the crawler according to the third embodiment of the present invention, and is an example in which an inclined surface 7c on one side of the crawler main body in the width direction center position L is formed on the cored bar-less crawler.
- FIG. 3B is a partial plan view of the ground contact surface.
- the inclined surface 7c is formed by providing the lug 4b, but a configuration without the lug may be used. 2 and 3 that are the same as those in FIG. 1 and that do not require description are simply given the same reference numerals and description thereof is omitted.
- the start positions of the inclined surfaces 7a, 7b, and 7c are determined in a settable range by the position of the tread surface of the wheel of the crawler type traveling device.
- the tread surface is a cylindrical surface of the wheel, and is a surface on which the elastic crawler is stepped.
- FIG. 11 shows this relationship.
- the right side is the inside of the crawler type traveling device, and the left side is the outside.
- FIG. 11A and FIG. 11B place differently shaped rolling wheels on the same elastic crawler shown in the first embodiment.
- the wheel 11 includes a tread surface 11a having a large central diameter and tread surfaces 11b and 11c having small left and right diameters.
- the treads 11b and 11c ride on the tops 8a and 8b of the left and right guide protrusions 8, respectively, and the tread 11a rides on the surface 2b.
- the tread surface 12 a and the tread surface 12 b are separated from each other on the left and right, and run on the surfaces 2 a and 2 c, respectively.
- the wheel 13 in the cored barless crawler of the third embodiment shown in FIG. 3, the wheel 13 has a tread surface 13a and a tread surface 13b separated from each other on the left and right, and rides on the surfaces 2a and 2c, respectively.
- the range E for setting the start positions of the inclined surfaces 7a, 7c in FIGS. 11A, 11B, and 11C is a range outside the inner tread surface of the wheels 11, 12, and 13 and inside the outer tread surface. .
- the range E is different depending on the difference in the shape of the wheels, but in order to be able to be used in common for the rollers 11 and 12, the range E is inclined within the range E shown in FIG. What is necessary is just to start the surface 7a. In addition, the starting position of the inclined surface 7b is according to the inclined surface 7a.
- the inclined surfaces 7a, 7b and 7c gradually reduce the distance dp in the height direction from the surface 2a and the top 8a, but “gradually reducing the distance dp” means “the treads 11a and 12a located outside the wheels”. , 13a is gradually reduced in the height direction DP. This is because the tread surfaces 11a, 12a, and 13a located on the outside ride on the surface 2a and the top 8a.
- FIG. 4 is a side view showing a traveling device M to which the elastic crawler C according to each embodiment of the present invention is applied.
- a driving wheel S driven by a hydraulic motor or the like and a driven wheel A are arranged apart from each other in the front-rear direction, and a plurality of rolling wheels are arranged between the driving wheel S and the driven wheel A, The driving wheel S, the driven wheel A, and the rolling wheel are wound around an elastic crawler C.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Tires In General (AREA)
- Road Repair (AREA)
- Jib Cranes (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
Description
このような作業現場には、クローラ式走行装置CMが有効に活用できるのではないかと検討したところ、現状のクローラ式走行装置では適用に問題があることが判明した。
本実施形態によると、弾性クローラが受ける円筒状壁面からの応力を更に効率良く回避でき、脱輪や耳切れを低減でき、クローラ本体の強度を上げることができる。
また、第一実施形態においては、傾斜面7aにおいては、ラグを有さない構成であったが、ラグを設けても良い。図2B~図2Dは、傾斜面7aにラグを有する他の形態の弾性クローラを示している。図2BはZ-Z断面、図2CはY-Y断面であり、図2Dは接地面の部分平面図である。ここにおいて、ラグ4aの間に挟まれた陥没平面2d、2eは、クローラ本体の幅方向中心位置Lに対して左右とも、踏面2a及び2cと平行であり、同一平面内に存在する水平面としておくのが良い。尚、ラグ4aの傾斜面7aとして、曲面を成した傾斜面7bとしても良い。
一方、図11Bにおいては、転輪12は、踏面12aと踏面12bとが左右に離間しており、それぞれ面2aと面2cに乗り上げている。また、図11Cにおいては、図3に示した第三実施形態の芯金レスクローラにおいて、転輪13は、踏面13aと踏面13bとが左右に離間しており、それぞれ面2aと面2cに乗り上げている。図11A、図11B及び図11Cにおける傾斜面7a、7cの開始位置を設定する範囲Eは、転輪11、12、13の内側の踏面よりも外側で、外側の踏面よりも内側の範囲である。
2 クローラ本体
3 芯金
4 ラグ
5 係合孔
6 スチールコード列
7a、7b、7c 傾斜面
8 ガイド突起
11、12、13 転輪
11a、11b、11c、12a、12b、13a、13b 踏面
L クローラ幅方向中心位置
H 仮想水平面
M 走行装置
CM クローラ式走行装置
S 駆動輪
A 従動輪
C 弾性クローラ
Claims (3)
- 左右の踏面を持つ転輪により踏み込まれる無端状弾性体からなるクローラ本体と、前記クローラ本体の接地面に複数のラグが配置された弾性クローラであり、前記クローラ本体の接地面側クローラ幅方向中心位置より一方側部分には、前記クローラ幅方向において前記転輪の内側となる踏面よりも外側で、外側となる踏面よりも内側の範囲内の位置からクローラ幅方向一方側端縁付近に向かって、外側となる踏面との高さ方向の距離を漸次縮めることによりクローラ厚さを漸次小さくする傾斜面が形成され、平坦面走行時には前記傾斜面は接地しないことを特徴とする弾性クローラ。
- 前記クローラ本体のクローラ幅方向中心位置より一方側に形成された傾斜面が、曲面を成していることを特徴とする請求項1の弾性クローラ。
- 請求項1、または請求項2の弾性クローラが、前記クローラ本体のクローラ幅方向中心位置より一方側に形成された傾斜面が機体外側になるように装着された、クローラ式走行装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018539627A JP6656676B2 (ja) | 2016-09-14 | 2017-09-01 | 弾性クローラとクローラ式走行装置 |
AU2017328837A AU2017328837A1 (en) | 2016-09-14 | 2017-09-01 | Elastic crawler and crawler-type travel device |
US16/328,803 US11186332B2 (en) | 2016-09-14 | 2017-09-01 | Elastic crawler and crawler-type travel device |
CN201780056272.5A CN109715480B (zh) | 2016-09-14 | 2017-09-01 | 弹性履带牵引器和履带牵引式行驶装置 |
EP17850711.7A EP3489117B1 (en) | 2016-09-14 | 2017-09-01 | Elastic crawler and crawler-type travel device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016-179771 | 2016-09-14 | ||
JP2016179771 | 2016-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018051808A1 true WO2018051808A1 (ja) | 2018-03-22 |
Family
ID=61618739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/031529 WO2018051808A1 (ja) | 2016-09-14 | 2017-09-01 | 弾性クローラとクローラ式走行装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US11186332B2 (ja) |
EP (1) | EP3489117B1 (ja) |
JP (1) | JP6656676B2 (ja) |
CN (1) | CN109715480B (ja) |
AU (1) | AU2017328837A1 (ja) |
WO (1) | WO2018051808A1 (ja) |
Citations (5)
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JPS504097Y1 (ja) * | 1969-07-31 | 1975-02-02 | ||
JP2000302069A (ja) * | 1999-04-21 | 2000-10-31 | Ohtsu Tire & Rubber Co Ltd :The | クローラ走行装置 |
JP2003040155A (ja) * | 2001-07-30 | 2003-02-13 | Komatsu Ltd | 弾性履帯 |
JP2003252259A (ja) * | 2002-02-27 | 2003-09-10 | Ohtsu Tire & Rubber Co Ltd :The | 弾性クローラ |
US20110209930A1 (en) * | 2007-01-11 | 2011-09-01 | Glen Brazier | Motorized snowboard |
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JPS5587667A (en) * | 1978-12-27 | 1980-07-02 | Iseki & Co Ltd | Elastic crawler |
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JPH054097A (ja) | 1991-06-26 | 1993-01-14 | Konica Corp | 非銀塩感光材料の処理廃液の処理方法 |
EP0919455B1 (en) * | 1996-08-20 | 2007-03-07 | Yanmar Co., Ltd. | Swivel working vehicle |
JPH10250650A (ja) * | 1997-03-17 | 1998-09-22 | Komatsu Zenoah Co | 履帯式作業車両及びそのゴム履帯 |
KR100553941B1 (ko) * | 1997-09-05 | 2006-02-24 | 가부시키가이샤 고마쓰 세이사쿠쇼 | 탄성체 플랫트레드 |
JPH11222167A (ja) | 1998-02-06 | 1999-08-17 | Fukuyama Rubber Kogyo Kk | ゴムクローラ |
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JP4181314B2 (ja) * | 2001-04-16 | 2008-11-12 | 株式会社ブリヂストン | ゴムクローラ |
JP2003252262A (ja) * | 2002-03-05 | 2003-09-10 | Komatsu Ltd | 弾性体履板 |
WO2004083024A1 (en) * | 2003-03-18 | 2004-09-30 | Soucy International Inc. | Elastomeric traction band with lug reinforcements |
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JP2006321293A (ja) * | 2005-05-17 | 2006-11-30 | Xenith Track Co Ltd | 弾性クローラ |
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CA2606039C (en) * | 2007-10-03 | 2016-03-29 | Camoplast Inc. | A track assembly for an all-terrain vehicle |
JP5348992B2 (ja) * | 2008-10-08 | 2013-11-20 | 住友ゴム工業株式会社 | 弾性履帯 |
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US20140031977A1 (en) * | 2012-07-27 | 2014-01-30 | Engineering Services Inc. | Modular mobile robot |
US9834265B2 (en) * | 2015-06-16 | 2017-12-05 | Cnh Industrial America Llc | Rubber track system |
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2017
- 2017-09-01 WO PCT/JP2017/031529 patent/WO2018051808A1/ja unknown
- 2017-09-01 CN CN201780056272.5A patent/CN109715480B/zh active Active
- 2017-09-01 JP JP2018539627A patent/JP6656676B2/ja active Active
- 2017-09-01 AU AU2017328837A patent/AU2017328837A1/en not_active Abandoned
- 2017-09-01 US US16/328,803 patent/US11186332B2/en active Active
- 2017-09-01 EP EP17850711.7A patent/EP3489117B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS504097Y1 (ja) * | 1969-07-31 | 1975-02-02 | ||
JP2000302069A (ja) * | 1999-04-21 | 2000-10-31 | Ohtsu Tire & Rubber Co Ltd :The | クローラ走行装置 |
JP2003040155A (ja) * | 2001-07-30 | 2003-02-13 | Komatsu Ltd | 弾性履帯 |
JP2003252259A (ja) * | 2002-02-27 | 2003-09-10 | Ohtsu Tire & Rubber Co Ltd :The | 弾性クローラ |
US20110209930A1 (en) * | 2007-01-11 | 2011-09-01 | Glen Brazier | Motorized snowboard |
Also Published As
Publication number | Publication date |
---|---|
AU2017328837A1 (en) | 2019-03-21 |
CN109715480B (zh) | 2021-08-31 |
JP6656676B2 (ja) | 2020-03-04 |
CN109715480A (zh) | 2019-05-03 |
EP3489117A1 (en) | 2019-05-29 |
US11186332B2 (en) | 2021-11-30 |
EP3489117B1 (en) | 2021-06-16 |
US20190210671A1 (en) | 2019-07-11 |
JPWO2018051808A1 (ja) | 2019-06-27 |
EP3489117A4 (en) | 2019-09-25 |
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