WO2021241942A1 - Ensemble chaîne à rouleaux de chenille pour entraînement inférieur d'excavatrice amphibie - Google Patents

Ensemble chaîne à rouleaux de chenille pour entraînement inférieur d'excavatrice amphibie Download PDF

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Publication number
WO2021241942A1
WO2021241942A1 PCT/KR2021/006345 KR2021006345W WO2021241942A1 WO 2021241942 A1 WO2021241942 A1 WO 2021241942A1 KR 2021006345 W KR2021006345 W KR 2021006345W WO 2021241942 A1 WO2021241942 A1 WO 2021241942A1
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WO
WIPO (PCT)
Prior art keywords
roller
cover
seal
shaft
track
Prior art date
Application number
PCT/KR2021/006345
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English (en)
Korean (ko)
Inventor
배성우
강윤구
Original Assignee
배성우
강윤구
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 배성우, 강윤구 filed Critical 배성우
Publication of WO2021241942A1 publication Critical patent/WO2021241942A1/fr

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    • 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
    • B62D55/20—Tracks of articulated type, e.g. chains
    • B62D55/205—Connections between track links
    • B62D55/21—Links connected by transverse pivot pins
    • 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
    • B62D55/088—Endless track units; Parts thereof with means to exclude or remove foreign matter, e.g. sealing means, self-cleaning track links or sprockets, deflector plates or scrapers
    • B62D55/0887—Track-articulation sealings against dust, water, mud or the like
    • 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
    • B62D55/092—Endless track units; Parts thereof with lubrication means
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/02—Travelling-gear, e.g. associated with slewing gears

Definitions

  • the present invention relates to a track roller chain assembly for driving the lower part of an amphibious excavator, and more particularly, to a roller, which is a part for driving the lower part of an amphibious excavator, by mounting a dust seal and adding a lubrication function to increase durability. It relates to a track roller chain assembly for driving the underside of an amphibious excavator.
  • heavy construction equipment employing a device such as "Track roller of the lower driving device for driving of heavy construction equipment" of Registration Patent No. 20-0209501 is a high-productivity It is widely used as a device.
  • the lower driving unit of the conventional amphibious excavator is equipped with a side pontoon assembly (100, side pontoon assembly) so that it can float on water by generating buoyancy as shown in FIG. 7 .
  • the side pontoon assembly 100 includes a side pontoon 110 generating buoyancy, a driving motor 120 serving as a driving unit to move the equipment, and a track 140 including a plurality of track shoes 141 .
  • a driving motor 120 serving as a driving unit to move the equipment
  • a track 140 including a plurality of track shoes 141 .
  • ) is composed of an idler (130, idler) that maintains a certain level of tension.
  • the track chain assembly 150 is provided for fixing and connecting these track shoes 141 , and the track chain assembly 150 is connected to the driving motor 120 to change the rotational force of the driving motor 120 into linear motion. At the same time, the side pontoon 110 is supported.
  • the track chain assembly 150 will be described in more detail with reference to FIG. 8 .
  • the track chain assembly 150 includes a bracket 151 connected to the track shoe 141 as shown, and first and second links 152a and 152b connected by the bracket 151 .
  • first and second links 152a and 152b rotatably connect the roller 153 and the shaft 154
  • the shaft 154 connects the bracket 151 and the first and second links 152a and 152b. It connects, and the shaft 154 is fixed by a bolt 155 and a washer 156 .
  • one end of the bush 154a constituting the shaft 154 is press-fitted into the first link 152a, the rotating roller 153 is assembled, and the second link 152b is connected to the roller 153 and the bush ( After press-fitting the other end of the 154a, the main pin 154b constituting the shaft 154 is penetrated, and the split pin 154c is inserted into the distal end of the main pin 154b to be fixed.
  • the present invention was invented to improve the above problems, and for the lower driving of an amphibious excavator, to increase durability by attaching a dust seal to the roller, which is a part for driving the lower part of the amphibious excavator, and adding a lubrication function.
  • a dust seal to the roller, which is a part for driving the lower part of the amphibious excavator, and adding a lubrication function.
  • the present invention provides a track roller chain assembly for driving the lower part of the amphibious excavator to prevent foreign substances from intervening between the roller and the bush, which are parts for driving the lower part of the amphibious excavator, and causing wear of the roller and the bush in advance. is to provide
  • the present invention is to be mounted on the lower driving track of the amphibious excavator, a pair of brackets ( bracket); a link rotatably connected to each of the pair of brackets; a shaft forming a hinge point rotatably connected to one end of each of the pair of brackets and one end of the link; a roller rotatably mounted with respect to the shaft; a cover disposed between both end surfaces of the roller and the opposite hinge point and fixedly seated on both end surfaces of the roller;
  • the bottom surface of the seating groove formed in a ring shape along the inner surface of the cover facing both end surfaces of the roller, the outer edge of the bottom surface, and the outside of the seating groove connected to the outer edge of the bottom surface a first seal made of a first material in a ring shape having a first cross-section formed to be inclined from an inner surface toward both end surfaces of the roller;
  • the pair of brackets includes a pair of roller support pieces having opposite surfaces facing each other, and a shoe mounting piece extending and bending from one edge of each of the pair of roller support pieces and mounted on the track shoe. and the link pieces are rotatably fastened to both ends of each of the pair of roller support pieces, and the hinge point is formed between both ends of each of the pair of roller support pieces and one side of both ends of each of the link pieces Between each, the shaft, the roller, and the center of the cover are characterized in that it is arranged in a straight line.
  • the shaft includes a core portion having a first diameter, a cover step extending stepwise from both end surfaces of the core portion, having a second diameter smaller than the first diameter, and a cover step on which the cover is seated and fixed, and the cover step difference
  • a rotation step portion extending stepwise from the distal end surface of the portion and having a third diameter less than or equal to the second diameter and through which each of the link piece and the bracket pass, and the rotation step portion respectively formed on the distal end surface of the rotation step portion and a fastener for regulating separation of each of the link piece and the bracket coupled through the lubricating part, wherein the lubricating part is formed between the outer peripheral surface of the core part and the inner peripheral surface of the roller.
  • the roller is formed by passing through both end surfaces of the roller, a shaft hole having an inner diameter of a first diameter and forming an inner circumferential surface opposite to the outer circumferential surface of the shaft, and each step recessed from both end surfaces of the roller and a cover seat jaw having an inner diameter greater than the first diameter and having a fourth diameter equal to or greater than the outer diameter of the cover, wherein the first seal and the second It is characterized in that the seal is disposed.
  • both end surfaces of the roller and the outer peripheral surface of the roller, the inner peripheral surface of the shaft hole and the cover seating jaw are characterized in that the high frequency heat treatment is performed.
  • the cover includes a close contacting inner surface that simultaneously faces the stepped surface of the cover step portion of the shaft disposed on the same plane and the bottom surface of the cover seating jaw of the roller, and an end surface of each of the cover step portions of the shaft and a cover through hole formed through the center of the cover so as to be coupled through the rotating stepped portion extending stepwise from the cover, wherein the seating groove of the cover is recessed to a first depth from the inner surface of the cover, and the dust A length along the longitudinal direction of the shaft of the seal is greater than the first depth.
  • the first seal is a ring-shaped first close contact with the bottom surface of the seating groove, the outer edge of the bottom surface, and the outer inner surface of the seating groove connected to the outer edge of the bottom surface.
  • a core rib a second adhesive core rib in a ring shape extending obliquely from the inner edge of the distal end of the first adhesive core rib toward both end surfaces of the roller and in close contact with the second seal; It is characterized in that it includes an extended contact rib extending in a ring shape along the outer edge of the distal end to allow shape deformation to be pressed against the outer inner surface of the seating groove.
  • the second seal has a ring-shaped contact surface having a bottom surface of the seating groove, an inner edge of the bottom surface, and an inner inner surface of the seating groove connected to the inner edge of the bottom surface and at the same time facing each other.
  • a third adhesive core rib and a ring-shaped fourth adhesive core rib extending from the distal end of the third adhesive core rib toward the outer inner surface of the seating groove and having a contact surface supporting and supporting the distal end of the first seal;
  • It is characterized in that it comprises a metal inner iron which is embedded in the third adhesion core rib and the fourth adhesion core rib to support the adhesion force of the first seal.
  • the lubricating part comprises a grease groove recessed to have an arc-shaped cross section along the outer peripheral surface of the core part of the shaft, and grease filled between the grease groove and the inner peripheral surface of the roller. do.
  • the present invention by installing the dust seal between the roller and the bush, which are the lower driving parts of the amphibious excavator, it will be possible to prevent in advance that foreign substances are inserted between the roller and the bush and cause wear of the roller and the bush. .
  • the present invention minimizes frictional force by increasing lubrication by applying grease between the roller and the bush and thereby minimizes wear and tear, so that durability can be increased, as well as increase the lifespan of the entire device and, at the same time, replace It will also be possible to significantly extend the cycle.
  • the present invention will be able to have high durability against friction and load by carrying out hardening according to carburization and induction heat treatment together with the rollers in the bush constituting the shaft.
  • FIG. 1 is a conceptual view showing the overall appearance of a track roller chain assembly for driving the lower part of an amphibious excavator according to an embodiment of the present invention
  • FIG. 2 is a schematic cross-sectional view showing the internal coupling relationship of the track roller chain assembly for driving the lower part of the amphibious excavator according to an embodiment of the present invention, as shown by cutting along the line II-II of FIG. 1(b).
  • FIG. 3 is a cross-sectional conceptual view showing the structure of a shaft, which is a main part of a track roller chain assembly for driving a lower part of an amphibious excavator according to an embodiment of the present invention
  • FIG. 4 is a cross-sectional conceptual view showing a structure of a roller, which is a main part of a track roller chain assembly for driving a lower part of an amphibious excavator according to an embodiment of the present invention
  • FIG. 5 is a cross-sectional conceptual view illustrating a structure of a cover, which is a main part of a track roller chain assembly for driving a lower part of an amphibious excavator according to an embodiment of the present invention
  • FIG. 6 is a conceptual diagram illustrating a structure of a dust seal, which is a main part of a track roller chain assembly for driving a lower part of an amphibious excavator according to an embodiment of the present invention
  • FIG. 7 is a perspective view showing the overall appearance of a side pontoon assembly mounted on a conventional amphibious excavator
  • FIG. 8 is an exploded perspective conceptual view showing the overall coupling structure of the track chain assembly mounted on the conventional side pontoon assembly;
  • FIG. 1 is a conceptual diagram illustrating the overall appearance of a track roller chain assembly for driving a lower portion of an amphibious excavator according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1(b), and is a planar cross-sectional view showing the internal coupling relationship of the track roller chain assembly for driving the lower part of the amphibious excavator according to an embodiment of the present invention. It is a conceptual diagram.
  • FIG. 3 is a cross-sectional conceptual view showing the structure of the shaft 30, which is a main part of the track roller chain assembly for driving the lower part of the amphibious excavator according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional conceptual view showing the structure of the roller 40, which is a main part of the track roller chain assembly for driving the lower part of the amphibious excavator according to an embodiment of the present invention.
  • FIG. 5 is a cross-sectional conceptual view showing the structure of the cover 50, which is a main part of the track roller chain assembly for driving the lower part of the amphibious excavator according to an embodiment of the present invention.
  • FIG. 6 is a conceptual diagram illustrating a structure of a dust seal, which is a main part of a track roller chain assembly for driving a lower part of an amphibious excavator according to an embodiment of the present invention.
  • the pair of brackets 10 are mounted on the lower driving track of the amphibious excavator, and are mounted on each of a plurality of track shoes constituting the lower driving track.
  • the link 20 is rotatably connected to each of the pair of brackets 10
  • the shaft 30 is rotatably connected to one end of each of the pair of brackets 10 and one end of the link 20 .
  • a hinge point (30h, hinge point) is formed.
  • roller 40 is rotatably mounted with respect to the shaft 30, and the cover 50 is disposed between the both end surfaces 40e of the roller 40 and the opposite hinge point 30h to the roller 40 It is seated and fixed to both end surfaces (40e) of the.
  • the first seal 60 includes a bottom surface 51b of a seating groove 51 formed in a ring shape along an inner surface of the cover 50 facing both end surfaces 40e of the roller 40, and a bottom Both end surfaces 40e of the roller 40 from the outer inner surface 51t of the seating groove 51 connected to the outer edge 51ue of the surface 51b and the outer edge 51ue of the bottom surface 51b It is made of a ring-shaped first material having a first cross-section that is inclined toward the.
  • the second seal 70 is seated connected to the bottom surface 51b of the seating groove 51, the inner edge 51ie of the bottom surface 51b, and the inner edge 51ie of the bottom surface 51b.
  • a ring-shaped second having a second cross-section formed to contact the inner inner surface 51i of the groove 51 and to support and support the distal ends facing both end surfaces 40e of the roller 40 of the first cross-section made of material.
  • the lubricating part 80 is formed between the outer peripheral surface of the shaft 30 and the inner peripheral surface of the roller 40 to perform the lubricating action of the shaft 30 and the roller 40 .
  • first seal 60 and the second seal 70 are engaged to form a dust seal.
  • the pattern in which the roller 40 is connected together with the link 20 at both ends of each of the pair of brackets 10 is repeated along a straight line, thereby forming the track roller chain 90 as shown in FIG.
  • the roller chain 90 is mounted on each of the plurality of track shoes constituting the driving track forming the caterpillar to receive the driving force.
  • the pair of brackets 10 looking more specifically with reference to FIGS. 1 and 2, a pair of roller support pieces 11 having opposite surfaces facing each other, and a pair of roller support pieces 11 ) It is possible to apply an embodiment of a structure including a shoe mounting piece 12 that is bent extending from one edge of each and mounted on the track shoe.
  • the link 20 which will be described later, is rotatably fastened to both ends of the pair of roller support pieces 11, respectively.
  • the shaft 30 looking more specifically with reference to FIG. 3 together with FIGS. 1 and 2, the core part 31 having a first diameter (D1) and a cover step having a second diameter (D2)
  • D1 first diameter
  • D2 cover step having a second diameter
  • the embodiment of the structure including the portion 32 , the rotation step portion 33 having the third diameter D3 , and the fastener 34 may be applied.
  • the cover step portion 32 extends stepwise from both end surfaces of the core portion 31 , has a second diameter D2 smaller than the first diameter D1 , and the cover 50 is seated and fixed.
  • the rotation step portion 33 extends stepwise from the distal end surface of the cover step portion 32 and has a third diameter D3 smaller than or equal to the second diameter D2, and the link 20 piece and the bracket 10 ) is passed through each.
  • fasteners 34 are respectively formed on the distal end surface of the rotation step 33 to regulate the separation of each of the link 20 piece and the bracket 10 that are through-coupled to the rotation step 33 .
  • the lubricating part 80 to be described later is formed between the outer peripheral surface of the core part 31 and the inner peripheral surface of the roller 40 .
  • the fastener 34 is engaged with the head of the bolt 34b and the bolt 34b coupled to the fastening grooves 33g recessed in the distal end surface of the rotation step 33, respectively, and fixed to the bracket 10. It may include a washer (34w) in close contact with the.
  • the roller 40 looking more specifically with reference to FIG. 4 together with FIGS. 1 and 2, is formed through both end surfaces 40e of the roller 40, and the inner diameter of the first diameter D1
  • the embodiment of the structure including the cover seating jaw 42 together with the shaft hole 41 having an inner circumferential surface facing the outer circumferential surface of the shaft 30 may be applied.
  • the cover seating jaws 42 are respectively recessed stepwise from both end surfaces 40e of the roller 40, and are larger than the first diameter D1 and greater than or equal to the outer diameter of the cover 50.
  • first seal 60 and the second seal 70 to be described later are disposed between the cover seating jaw 42 and the seating groove 51 of the cover 50 .
  • the cover 50 looking more specifically with reference to FIG. 5 together with FIGS. 1 and 2, the step surface and the roller 40 of the cover step part 32 of the shaft 30 disposed on the same plane.
  • the embodiment of the structure including the cover through hole 53 together with the close contact inner surface 52 facing at the same time with respect to the bottom surface of the cover seating jaw 42 may be applied.
  • the cover through hole 53 is formed through the center of the cover 50 so as to be through-coupled to the rotating stepped portion 33 extending stepwisely from the end surface of each of the cover stepped portions 32 of the shaft 30 . .
  • the seating groove 51 of the cover 50 is recessed from the close contact inner surface 52 to a first depth (d1, see FIG. 5 below), and is formed along the longitudinal direction of the shaft 30 of the dust seal to be described later. It can be seen that the length d2 (refer to FIG. 6 below) is greater than the first depth d1.
  • the second depth d2 should be greater than the first depth d1 because the dust seal is accommodated in the seating groove 51 between the cover 50 and the roller 40, that is, through the cover seating jaw 42, foreign matter This is to fundamentally block the inflow and maintain a certain airtight and watertight condition.
  • first and second adhesion core ribs 61 and 62 and the extended adhesion rib 63 may be applied to an embodiment of a structure including
  • the first adhesion core rib 61 is connected to the bottom surface 51b of the seating groove 51, the outer edge 51ue of the bottom surface 51b, and the outer edge 51ue of the bottom surface 51b. It is formed in a ring shape to be in close contact with the outer inner surface (51t) of the seating groove (51).
  • the second adhesive core rib 62 is formed to extend obliquely from the inner edge of the distal end of the first adhesive core rib 61 toward both end surfaces 40e of the roller 40 and is a ring in close contact with the second seal 70 . formed in a shape.
  • the extended adhesion rib 63 extends in a ring shape along the outer edge of the distal end of the first adhesion core rib 61 and is pressed against the outer inner surface 51t of the seating groove 51 to allow shape deformation. will be.
  • the radius of curvature (hereinafter, the first radius R1) of the arc 61c formed by the curved inner edge of the first cross-section, which is the inner circumferential surface of the first adhesive core rib 61, is that of the second adhesive core rib 62 . It may be formed to be larger than the radius of curvature (hereinafter the second radius R2) of the arc 62c formed by the curved outer edge of the first cross-section, which is the outer circumferential surface.
  • the first radius R1 is 1.01 to 2 times the second radius R2, and preferably, it may be designed to be about 1.5 times.
  • first radius R1 should be greater than the second radius R2 is that the first seal 60 made of a rubber material is seated in the seating groove 51 and compressed between the roller 40 and the cover 50. This is because, when the first seal 60 is contracted in the central direction, the required airtight performance can be properly exhibited without shrinking.
  • the second seal 70 constituting the dust seal referring to FIG. 6 together with FIGS. 1 and 2 in more detail, the third and fourth contact core ribs 71 and 72 and the inner iron 73 are formed.
  • Embodiments of the structure including the structure may be applied.
  • the third contact core rib 71 includes the bottom surface 51b of the seating groove 51, the inner edge 51ie of the bottom surface 51b, and the inner edge 51ie of the bottom surface 51b, It is formed in a ring shape having contact surfaces facing the inner inner surface 51i of the connecting seating groove 51 at the same time.
  • the fourth adhesive core rib 72 extends from the distal end of the third adhesive core rib 71 toward the outer inner surface 51t of the seating groove 51 and supports the distal end of the first seal 60 . It is formed in a ring shape having a supporting contact surface.
  • the inner iron 73 is a metal member embedded in the third adhesion core rib 71 and the fourth adhesion core rib 72 to support the adhesion force of the first seal 60 .
  • the inner iron 73 includes a first piece 73a embedded in the third coherent core rib 71 and a first piece 73a extending from the distal end of the first piece 73a and bent with respect to the first piece 73a.
  • An embodiment of a structure including two pieces 73b may be applied.
  • the iron resistant 73 may be made of a steel plate cold commercial (SPCC) material to maintain rigidity and structural strength.
  • SPCC steel plate cold commercial
  • the inner iron 73 has an overall “L” shape cross-sectional structure, and the second seal 70 constituting the dust seal is formed between the roller 40 and the cover 50 together with the first seal 60 . It is provided to prevent severe shrinkage and deformation by crushing when fixed in close contact with the .
  • the second seal 70 is arranged at equal intervals along the inner peripheral surface of the third contact core rib 71 that is the contact surface facing the inner inner surface 51i of the seating groove 51 and is in contact with the inner iron 73 .
  • a plurality of support wedges 74 having a tip end may be further provided.
  • the support wedge 74 is provided to prevent distortion or shape deformation of the inner iron 73 and to support and correct the inner iron 73 so that it is positioned inside the second seal 70 .
  • the first material constituting the first seal 60 is synthetic rubber
  • the second material constituting the second seal 70 excluding the iron-resistant 73 may adopt a polyurethane or urethane resin.
  • the first seal 60 made of the first material made of synthetic rubber is a material with high elasticity, and any material can be used. can play a role.
  • the second seal 70 made of polyurethane or urethane resin has strong durability, and serves to prevent oil leakage and prevent penetration of water or foreign substances from the outside.
  • the lubricating part 80 looking at with reference to FIGS. 2 and 3, a grease groove 81 recessed to have an arc-shaped cross-section along the outer circumferential surface of the core part 31 of the shaft 30; , it may include grease (not shown below) filled between the grease groove 81 and the inner circumferential surface of the roller 40 .
  • the present invention provides a track roller chain assembly for driving the lower part of an amphibious excavator that can increase durability by mounting a dust seal on the roller, which is a lower driving part of the amphibious excavator, and adding a lubrication function. It can be seen that this is done in a technical way.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Sealing Devices (AREA)
  • Sealing Of Bearings (AREA)

Abstract

La présente invention concerne un ensemble chaîne à rouleaux de chenille pour un entraînement inférieur d'une excavatrice amphibie, des supports et les liaisons étant raccordés par un arbre de manière à pouvoir tourner les uns par rapport aux autres, l'arbre présentant un rouleau monté sur celui-ci, et, à partir d'une structure dans laquelle un joint d'étanchéité contre la poussière comprenant un premier joint et un second joint est fermé par un couvercle intégré au niveau des deux surfaces d'extrémité du rouleau, la durabilité peut être augmentée par le montage du joint d'étanchéité contre la poussière sur le rouleau, qui est un élément d'entraînement inférieur d'une excavatrice amphibie et par l'ajout d'une fonction de lubrification.
PCT/KR2021/006345 2020-05-26 2021-05-21 Ensemble chaîne à rouleaux de chenille pour entraînement inférieur d'excavatrice amphibie WO2021241942A1 (fr)

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KR1020200063031A KR102213391B1 (ko) 2020-05-26 2020-05-26 수륙양용 굴삭기의 하부 구동용 트랙 롤러 체인 어셈블리
KR10-2020-0063031 2020-05-26

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102213391B1 (ko) * 2020-05-26 2021-02-05 배성우 수륙양용 굴삭기의 하부 구동용 트랙 롤러 체인 어셈블리

Citations (6)

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Publication number Priority date Publication date Assignee Title
JPH081256B2 (ja) * 1988-09-30 1996-01-10 株式会社小松製作所 履帯シール
KR20100045930A (ko) * 2008-10-24 2010-05-04 디어 앤드 캄파니 듀얼-부싱 트랙 체인 카트리지
KR20160098818A (ko) * 2015-02-11 2016-08-19 두산인프라코어 주식회사 건설기계 하부주행체의 롤러장치
US20160339976A1 (en) * 2015-05-19 2016-11-24 Caterpillar Inc. Track chain assembly for undercarriage system
KR20170036579A (ko) * 2015-09-24 2017-04-03 (주)태왕 수중 사용이 가능한 무급유 롤러장치
KR102213391B1 (ko) * 2020-05-26 2021-02-05 배성우 수륙양용 굴삭기의 하부 구동용 트랙 롤러 체인 어셈블리

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200209501Y1 (ko) 2000-06-28 2001-01-15 신중만 건설중장비의 주행용 하부 구동장치의 트랙롤러

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH081256B2 (ja) * 1988-09-30 1996-01-10 株式会社小松製作所 履帯シール
KR20100045930A (ko) * 2008-10-24 2010-05-04 디어 앤드 캄파니 듀얼-부싱 트랙 체인 카트리지
KR20160098818A (ko) * 2015-02-11 2016-08-19 두산인프라코어 주식회사 건설기계 하부주행체의 롤러장치
US20160339976A1 (en) * 2015-05-19 2016-11-24 Caterpillar Inc. Track chain assembly for undercarriage system
KR20170036579A (ko) * 2015-09-24 2017-04-03 (주)태왕 수중 사용이 가능한 무급유 롤러장치
KR102213391B1 (ko) * 2020-05-26 2021-02-05 배성우 수륙양용 굴삭기의 하부 구동용 트랙 롤러 체인 어셈블리

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