WO2019105116A1 - Wagon ouvert de chemin de fer et sa paroi latérale - Google Patents

Wagon ouvert de chemin de fer et sa paroi latérale Download PDF

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Publication number
WO2019105116A1
WO2019105116A1 PCT/CN2018/106840 CN2018106840W WO2019105116A1 WO 2019105116 A1 WO2019105116 A1 WO 2019105116A1 CN 2018106840 W CN2018106840 W CN 2018106840W WO 2019105116 A1 WO2019105116 A1 WO 2019105116A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
column
side wall
pillow
curved
Prior art date
Application number
PCT/CN2018/106840
Other languages
English (en)
Chinese (zh)
Inventor
韩俊峰
郑和平
张志彬
吕倩
付占起
Original Assignee
中车齐齐哈尔车辆有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中车齐齐哈尔车辆有限公司 filed Critical 中车齐齐哈尔车辆有限公司
Priority to BR112019021426A priority Critical patent/BR112019021426A2/pt
Priority to AU2018374121A priority patent/AU2018374121B2/en
Publication of WO2019105116A1 publication Critical patent/WO2019105116A1/fr
Priority to ZA2019/06770A priority patent/ZA201906770B/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/08—Sides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D3/00—Wagons or vans

Definitions

  • the invention relates to the technical field of railway gondola, in particular to a railway gondola and its side wall.
  • a railway gondola refers to an upwardly open cargo train with end walls, side walls and bottom plates without a roof. It is mainly used for the transportation of bulk cargo such as coal, ore, wood, steel, large equipment, boxed or bagged.
  • the railway gondola has the characteristics of large capacity and high versatility. For heavy-duty transportation countries, the demand for railway gondola is increasing. At present, the number of railway gondola in China accounts for more than 60% of the total number of cargo trains.
  • FIG. 1 is a front view of a side wall of a prior art railway gondola.
  • the side wall includes an upper side beam 01, a side plate 02, a pillow column 03, and a side column 04.
  • the upper part of the side plate 02 is a flat plate and is integrally provided with the upper side beam 01; the lower part of the side plate 02 is a plurality of molding plates.
  • the left and right sides of each of the profiled sheets are connected to the corresponding side pillars 04 and the pillow pillars 03 through the side pillar connecting plates 06 and the pillow column connecting plates 05, respectively.
  • FIG. 2 is a front view of another side wall of the prior art railway gondola.
  • the side wall also includes an upper side beam 01, a side plate 02, a pillow column 03, and a side column 04.
  • the upper part of the side plate 02 is a flat plate and is arranged separately from the upper side beam 01; the lower part of the side plate 02 is a plurality of pressure molding plates.
  • the left and right sides of each profiled plate are directly connected to the side column 04 and the pillow column 03.
  • a cross-belt plate 07 is fixed to the upper middle portion of the side plate 02, and the cross-belt plate 07 extends along the longitudinal direction of the side wall.
  • the present invention provides a side wall of a railway gondola, the side wall including a pillow column and a side column spaced apart in the longitudinal direction; and a side plate, the side plate is fixed to the adjacent one a side column and an adjacent side column and the pillow column; further comprising a wear plate for preventing the pillow column, the side column and the side plate from being directly worn; the side plate is Curved plates with the top and bottom bent inward and the middle portion protruding outward.
  • the central portion of the side panel is convex from the inside to the outside at an overall viewing angle, and the convex portion extends from one length end to the other length end of the side panel.
  • the cargo presses the side panel from the inside to the outside, and because the middle portion of the side panel has a certain curvature, the ability of the middle portion of the side panel to resist the outward bulging deformation is enhanced, thereby
  • the side wall provided by the invention can have sufficient lateral rigidity without adding a side column connecting plate, a pillow column connecting plate and a cross belt plate.
  • the side wall provided by the present invention reduces the self-weight of the side wall by eliminating the arrangement of the side pillar connecting plate, the pillow column connecting plate and the cross-belt plate; and, because the bottom portion of the side plate is in an inwardly bent state, shortened
  • the spacing between the bottoms of the side walls of the two sides, under the premise of ensuring the constant volume of the railway open car, the bottom plate connected to the bottom of the side wall can be set to a narrow width, so that the self-weight of the bottom plate is reduced; thereby the overall weight of the railway gondola is reduced. It satisfies the demand for lightweight design of railway gondola, which is conducive to the improvement of the heavy capacity of the railway open car.
  • the side panel is sequentially provided with a first curved plate from the top to the bottom, a first flat plate that is tangentially connected to the first curved plate and extends in a vertical direction, and the first flat shape a second curved plate that is tangentially cut into the plate and a second flat plate that is tangentially connected to the second curved plate; a portion of the wear plate is disposed on an outer side of the first flat plate.
  • the arc of the first curved plate is smaller than the curvature of the second curved plate.
  • the arc of the first curved plate is configured such that when the railway gondola is turned to the unloading limit state, the minimum angle between the first curved plate and the horizontal plane is greater than the angle of repose of the cargo, so that the cargo can be tilted Unload it clean.
  • the side post and the pillow post are each configured as a trapezoidal column having a top size smaller than a bottom size.
  • the side post and the pillow post are both configured such that a bottom portion of the inner side surface is inclined from the outside to the inner side with respect to the top portion, and an outer side surface extends in a vertical direction; a part of the wear plate is disposed on an outer side surface of the side column And the outer side of the pillow.
  • the side pillars and the outer side of the pillow column are flush with the outer side surface of the first flat plate.
  • the railway gondola includes a bottom plate; the side wall further includes a connecting plate for connecting the side plate and the bottom plate; the connecting plate includes a connecting flat plate extending in a horizontal direction, and the bottom plate
  • the connection further includes a connecting curved plate connected to the connecting flat plate, and is tangentially connected to the second flat plate.
  • the dumper matched with the railway gondola has a backboard plate, and when the cargo is unloaded, the inner side surface of the leaning board faces the outer side of the wear panel; the railway gondola is in an idle state and a full load state
  • the top surface of the wear plate can be higher than or flush with the top surface of the corresponding vehicle plate, and the bottom surface of the wear plate can be lower than or flush with the corresponding one of the vehicle plates. Bottom surface.
  • the railway side wall further includes an upper side beam fixed to the side pillar and the top end of the pillow column, and the upper side beam is configured to: a trapezoid formed by the top surface, the bottom surface, and the outer side surface
  • the inner surface of the side plate and the bottom surface are fixed to the outer side surface of the side plate such that the outer side surface of the side plate blocks the inner opening of the trapezoidal beam.
  • the present invention also provides a railway gondola comprising a bottom plate and the side wall of any of the above.
  • FIG. 1 is a front view of a side wall of a railway gondola in the prior art
  • FIG. 2 is a front elevational view of another side wall of a prior art railway gondola.
  • FIG. 3 is a front elevational view showing a specific embodiment of a side wall of a railway gondola provided by the present invention
  • Figure 4 is a view taken along line A-A of Figure 3;
  • Figure 5 is a B-B arrow view of Figure 3;
  • Figure 6 is a C-C arrow view of Figure 4.
  • Figure 7 is a D-D arrow view of Figure 5;
  • Figure 8 is an enlarged left side view of the side panel and the connecting panel shown in Figure 3;
  • Figure 9 is a left side view showing the state in which the railway gondola is not turned over;
  • Figure 10 is a left side view showing the state in which the railway gondola is turned to the limit state when unloading;
  • Figure 11 is a schematic illustration of the dimensions of the wear plate shown in Figure 3 and the dimensions of the deck of the dumper.
  • FIG. 3 is a front view of a side view of a side wall of a railway gondola provided by the present invention
  • FIG. 4 is a view taken along line A-A of FIG. 3
  • FIG. 5 is a view taken along line B-B of FIG.
  • the railway gondola includes a side wall and a bottom plate 7.
  • the side wall of the railway gondola provided by the present invention includes a pillow column 1 and a side column 2 which are arranged at intervals in the longitudinal direction, and further includes an upper side beam 3 and a side plate. 4.
  • the two pillow columns 1 are respectively located at two length ends of the side wall, and the side columns 2 are spaced apart between the two pillow columns 1 , and the pillow column 1 and the side columns 2 both extend in the vertical direction.
  • the upper side member 3 is fixed to the top ends of the pillow column 1 and the side column 2 and extends in the horizontal direction.
  • the left and right sides of the side plate 4 are respectively fixed between the adjacent side pillars 2 or between the adjacent side pillars 2 and the pillow pillars 1.
  • the side plate 4 is a curved plate whose top and bottom are bent inward and the middle portion is outwardly convex. It should be understood that the inside and outside referred to herein are relative to the railway car, and the volume side of the railway car is the inner side. That is, the central portion of the side plate 4 forms a convex portion from the inner side to the outer side, and as shown in FIG. 3, the convex portion extends from one length end (left end of the drawing) of the side plate 4 to another Length end (right end of the illustration).
  • the side wall provided by the invention can have sufficient lateral rigidity without adding side column connecting plates, pillow column connecting plates and cross-belts.
  • the side wall provided by the present invention reduces the self-weight of the side wall by eliminating the arrangement of the side pillar connecting plate, the pillow column connecting plate and the cross-belt plate; and, since the bottom of the side plate 4 is in an inwardly bent state, The spacing between the bottom walls of the side walls is shortened, so that the bottom plate 7 can be set to a narrow width, so that the self-weight of the bottom plate 7 is reduced; thereby the overall weight of the railway gondola is reduced, which satisfies the demand for lightweight design of the railway gondola, and is advantageous for the railway vehicle. Upgrade.
  • FIG. 8 is an enlarged left side view of the side panel and the connecting panel shown in FIG. 3;
  • FIG. 9 is a left side view of the unloaded state of the railway gondola;
  • the side plates 4 are sequentially arranged from the top to the bottom as a first curved plate 41, a first flat plate 42, a second curved plate 43, and a second flat plate 44.
  • first curved plate 41, the first flat plate 42, the second curved plate 43, and the second flat plate 44 can be independently formed, and then welded together; or directly One piece.
  • the first flat plate 42 extends in the vertical direction, and the top portion thereof is tangentially connected to the bottom of the first curved plate 41, and the top of the first curved plate 41 is curved inwardly with respect to the bottom thereof; the first flat plate 42 The bottom portion is tangentially connected to the top of the second curved plate 43, the bottom of the second curved plate 43 is curved inwardly with respect to the top thereof; the bottom of the second curved plate 43 is tangentially connected to the top of the second flat plate 44, and The bottom of the second flat plate 44 is inclined inwardly with respect to its top.
  • the side panel 4 can be formed in a state in which the top and the bottom are bent from the outside to the inside with respect to the middle portion.
  • a first flat plate 42 extending vertically is disposed.
  • a part of the wear plate 6 may be disposed on an outer side surface of the first flat plate 42.
  • a second flat plate 44 is disposed to facilitate the bottom portion of the side plate 4 The connection of the bottom plate 7.
  • the curvature of the first curved plate 41 is smaller than the curvature of the second curved plate 43 . That is, the degree of bending of the first curved plate 41 is smaller than the degree of bending of the second curved plate 43.
  • the arrangement is convenient to further reduce the width of the bottom plate 7, and the railway open car opening has a certain width and a suitable angle, which facilitates loading and unloading of the cargo.
  • the dumper when the railway gondola is unloaded, the dumper is used to make the railway gondola turn downward about the central axis S.
  • the arc of the first curved plate 41 is configured such that when the railway gondola is turned to the limit state, the minimum angle between the first curved plate 41 and the horizontal plane (the angle ⁇ shown) is greater than the angle of repose of the cargo, so that The goods can be dumped clean.
  • the cargo repose angle is an angle between the cargo and the horizontal plane when the cargo is at a standstill.
  • the connecting plate 5 includes a connecting flat plate 51 extending in a horizontal direction, and is connected to the bottom plate 7, and further includes a connecting curved plate 52 connected to the connecting flat plate 51, the connecting arc
  • the plate 52 is tangentially connected to the second flat plate 44 described above.
  • the connecting flat plate 51 and the connecting curved plate 52 may be integrally formed, or may be integrally formed and welded together.
  • the connecting plate 5 is provided because the height dimension of the side plate 4 is deformed.
  • the connecting plate 5 can be installed first, then the side plate 4 can be installed, and the connecting curved plate 52 of the connecting plate 5 and the connecting plate 5 can be adjusted.
  • the tangent position is such that the tops of the side panels 4 are at the same height.
  • the connecting plate 5 may not be provided, and the bottom of the side plate 4 may be provided as a curved plate or a flat plate and directly connected to the bottom plate 7, but in comparison, the room for adjusting the height dimension is relatively small.
  • FIG. 6 is a C-C arrow view of FIG. 4
  • FIG. 7 is a D-D arrow view of FIG. 5 ;
  • the side column 2 and the pillow column 1 are each configured as a trapezoidal column with a top portion smaller than the bottom portion, so as to facilitate the fixing of the side column 2 and the bottom of the pillow column 1 and facilitate the improvement.
  • the stability of both when the arc of the first curved plate 41 is configured to be smaller than the curvature of the second curved plate 42, the side pillars 2 and the top of the pillow 1 are provided with a smaller size, which may be the side plate 4
  • the sides are provided with sufficient abutment space so that the tops of both can be set to a smaller size to further reduce the weight of the side walls.
  • the side pillar 2 and the pillow pillar 1 are both configured such that the bottom of the inner side surface is inclined from the outside to the inside with respect to the top, and the outer side surface extends in the vertical direction. That is, the side pillars 2 and the pillow pillars 1 are each configured such that the outer side surface is a vertical surface, and the inner side surface is a trapezoidal column having a small top and a large bottom portion of the inclined surface. In this way, a part of the above-mentioned wear plate 6 can be disposed on the outer side surface of the side column 2 and the outer side surface of the pillow column 1. Please refer to FIG. 3 together for ease of understanding.
  • the side pillars 2 and the outer side surfaces of the pillow pillars 1 are flush with the outer side surfaces of the first flat plate 42. That is, the side columns 2 and the outer side of the pillow 1 are in a vertical plane with the outer side of the first flat plate 42. So that the side pillars 2 and the outer side surfaces of the pillow pillars 1 are flush with the outermost side surfaces of the side panels, and the space can be provided to the sides of the side panels 4 to ensure sufficient interference space.
  • the self-weight of the side column 2 and the pillow column 1 is reduced to a greater extent, thereby reducing the weight of the entire side wall.
  • the left and right sides of the pillow column 1 and the side column 2 extend in a vertical direction, so that the left and right sides are convenient.
  • the upper side member 3 is configured as an inner side open trapezoidal beam formed by a top surface, a bottom surface, and an outer side surface, and the inner side of the top surface and the bottom surface are fixed to the The outer side of the side panel 4.
  • the arrangement is such that the outer side of the side plate 4 blocks the inner opening of the trapezoidal beam and is welded to the top surface and the bottom surface of the trapezoidal beam. This arrangement is convenient for the top plate 4 and the upper side beam.
  • the fixing between 3 and the fixing of the side wall is higher than that of the non-opening beam with the inner side and then the top of the side panel 4 is overlapped with the non-opening beam. Strength of.
  • FIG. 11 is a schematic view showing the size of the wear plate 6 and the size of the deck 8 of the dumper.
  • the dumper matched with the railway gondola has a backboard 8 which faces the outer side of the wear plate 6 when unloading; the railway gondola is empty
  • the top surface of the wear plate 6 can be higher than or flush with the corresponding top surface of the vehicle board 8 (as shown in FIG. A+B ⁇ A'+B' and C+D).
  • ⁇ C' + D' the bottom surface of the wear plate 6 can be lower than or flush with the bottom surface of the corresponding vehicle plate 8 (as shown in Fig. D ⁇ D' and B ⁇ B').
  • the matching dumper is fixed, that is to say, the height dimension of the docking plate 8 of the dumper corresponding to the railway gondola is certain, that is, A shown in FIG. ', B', C', D' are certain.
  • the height dimension of the wear plate 6 facing the car board 8 is varied, that is, the size of the drawing D is varied.
  • the D size is small, and the height of the top surface of the corresponding wear plate 6 (A+B and C+D) is small.
  • the D size is large, and correspondingly, the top surface of the wear plate 6
  • the height (A+B and C+D) is large.
  • the top surface of the wear plate 6 is lower than the corresponding top surface of the vehicle plate 8 (A+B ⁇ A'+B' and C+D ⁇ C'+D') or the bottom surface of the wear plate 6 is higher than the corresponding
  • the bottom surface of the vehicle panel 8 causes the vehicle panel 8 to interfere with the edge of the wear panel 6 causing the risk of the panel 8 being broken.
  • the top surface of the wear plate 6 is higher than the corresponding top surface of the vehicle plate 8 (the G value and the H value shown) and the bottom surface of the wear plate 6 is lower than the bottom surface of the corresponding base plate 8 (illustration
  • the E value and the F value can be determined according to the difference in the height dimension of the railway gondola at full load and no load.
  • E ⁇ 50mm, F ⁇ 50mm, G ⁇ 100mm, H ⁇ 100mm can be set.
  • E ⁇ 50mm, F ⁇ 50mm, G ⁇ 100mm, H ⁇ 100mm can be set.
  • the present invention also provides a railway gondola that includes a bottom plate 7 and the above-described side walls.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

La présente invention concerne un wagon ouvert de chemin de fer et une paroi latérale de ce dernier, la paroi latérale comprenant des colonnes de traverse (1), des colonnes latérales (2) et des panneaux latéraux (4) répartis par intervalles dans le sens de sa longueur, les panneaux latéraux (4) étant reliés à demeure entre des colonnes latérales adjacentes (2) et des colonnes de traverse (1), et comprenant également des plaques d'usure (6) permettant d'empêcher les colonnes de traverse (1), aux colonnes latérales (2) et les panneaux latéraux (4) d'être directement usés, les panneaux latéraux (4) constituant des panneaux incurvés possédant une partie supérieure et une partie inférieure se recourbant vers l'intérieur et une partie centrale faisant saillie vers l'extérieur. La présente structure ne nécessite pas l'ajout d'autres parties afin d'augmenter la rigidité et présente une rigidité latérale suffisante ; étant donné que la partie inférieure du panneau latéral (4) se replie vers l'intérieur, un panneau inférieur (7) relié à la partie inférieure du panneau latéral peut être réglé à une largeur étroite sans changer le volume du wagon ouvert de chemin de fer ; ainsi, la paroi latérale (4) présente une rigidité latérale suffisante et peut satisfaire les exigences d'allégement du poids d'un wagon ouvert de chemin de fer.
PCT/CN2018/106840 2017-12-01 2018-09-21 Wagon ouvert de chemin de fer et sa paroi latérale WO2019105116A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR112019021426A BR112019021426A2 (pt) 2017-12-01 2018-09-21 vagão aberto ferroviário e parede lateral do mesmo
AU2018374121A AU2018374121B2 (en) 2017-12-01 2018-09-21 Railway open wagon and side wall thereof
ZA2019/06770A ZA201906770B (en) 2017-12-01 2019-10-14 Railway open wagon and side wall thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711251407.1 2017-12-01
CN201711251407.1A CN109866791B (zh) 2017-12-01 2017-12-01 一种铁路敞车及其侧墙

Publications (1)

Publication Number Publication Date
WO2019105116A1 true WO2019105116A1 (fr) 2019-06-06

Family

ID=66664359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/106840 WO2019105116A1 (fr) 2017-12-01 2018-09-21 Wagon ouvert de chemin de fer et sa paroi latérale

Country Status (5)

Country Link
CN (1) CN109866791B (fr)
AU (1) AU2018374121B2 (fr)
BR (1) BR112019021426A2 (fr)
WO (1) WO2019105116A1 (fr)
ZA (1) ZA201906770B (fr)

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CN201347067Y (zh) * 2008-12-30 2009-11-18 南车长江车辆有限公司 大容积大载重铁路自翻车
CN201347069Y (zh) * 2008-12-25 2009-11-18 南车长江车辆有限公司 铁路自翻车车厢
CN101704372A (zh) * 2009-12-09 2010-05-12 齐齐哈尔轨道交通装备有限责任公司 货车底架连接梁及车厢
EP2371652A1 (fr) * 2009-09-24 2011-10-05 Tangshan Railway Vehicle Co., Ltd Dispositif de réduction de traînée entre les wagons d'un train motorisé à grande vitesse
CN102991515A (zh) * 2012-12-18 2013-03-27 齐齐哈尔轨道交通装备有限责任公司 一种铁路车辆及其端壁
CA2590986C (fr) * 2006-05-31 2013-07-23 National Steel Car Limited Structure de carrosserie de wagon
CN203419136U (zh) * 2013-08-28 2014-02-05 齐齐哈尔轨道交通装备有限责任公司 铁路货车
CN204136994U (zh) * 2014-09-30 2015-02-04 齐齐哈尔轨道交通装备有限责任公司 一种运输车辆及其车体
CN105253155A (zh) * 2015-11-25 2016-01-20 南车长江车辆有限公司 一种铁路矿石专用敞车的侧墙总成

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CN202320330U (zh) * 2011-11-02 2012-07-11 南车长江车辆有限公司 铁路敞车车体
CN204077680U (zh) * 2014-07-31 2015-01-07 南车二七车辆有限公司 铁路用集装箱专用车体
CN104192157B (zh) * 2014-08-25 2016-08-03 中车长江车辆有限公司 铁路重载浴盆敞车侧墙
CN204250062U (zh) * 2014-12-04 2015-04-08 南车长江车辆有限公司 一种敞车的侧墙结构

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2590986C (fr) * 2006-05-31 2013-07-23 National Steel Car Limited Structure de carrosserie de wagon
CN201132529Y (zh) * 2007-12-27 2008-10-15 齐齐哈尔轨道交通装备有限责任公司 铁路货车侧墙结构及铁路货车车厢
CN201347069Y (zh) * 2008-12-25 2009-11-18 南车长江车辆有限公司 铁路自翻车车厢
CN201347067Y (zh) * 2008-12-30 2009-11-18 南车长江车辆有限公司 大容积大载重铁路自翻车
EP2371652A1 (fr) * 2009-09-24 2011-10-05 Tangshan Railway Vehicle Co., Ltd Dispositif de réduction de traînée entre les wagons d'un train motorisé à grande vitesse
CN101704372A (zh) * 2009-12-09 2010-05-12 齐齐哈尔轨道交通装备有限责任公司 货车底架连接梁及车厢
CN102991515A (zh) * 2012-12-18 2013-03-27 齐齐哈尔轨道交通装备有限责任公司 一种铁路车辆及其端壁
CN203419136U (zh) * 2013-08-28 2014-02-05 齐齐哈尔轨道交通装备有限责任公司 铁路货车
CN204136994U (zh) * 2014-09-30 2015-02-04 齐齐哈尔轨道交通装备有限责任公司 一种运输车辆及其车体
CN105253155A (zh) * 2015-11-25 2016-01-20 南车长江车辆有限公司 一种铁路矿石专用敞车的侧墙总成

Also Published As

Publication number Publication date
CN109866791B (zh) 2020-10-27
AU2018374121A1 (en) 2019-10-10
AU2018374121B2 (en) 2020-10-01
ZA201906770B (en) 2020-10-28
BR112019021426A2 (pt) 2020-05-05
CN109866791A (zh) 2019-06-11

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