WO2009101836A1 - 履帯式走行装置および転輪組立体 - Google Patents
履帯式走行装置および転輪組立体 Download PDFInfo
- Publication number
- WO2009101836A1 WO2009101836A1 PCT/JP2009/050562 JP2009050562W WO2009101836A1 WO 2009101836 A1 WO2009101836 A1 WO 2009101836A1 JP 2009050562 W JP2009050562 W JP 2009050562W WO 2009101836 A1 WO2009101836 A1 WO 2009101836A1
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- WIPO (PCT)
- Prior art keywords
- roller
- axial direction
- link
- wheel
- shaft
- Prior art date
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Classifications
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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
- B62D55/30—Track-tensioning means
- B62D55/305—Track-tensioning means acting on pivotably mounted idlers
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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
- B62D55/14—Arrangement, location, or adaptation of rollers
-
- 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
- B62D55/202—Wheel engaging parts; Wheel guides on links
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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
- B62D55/18—Tracks
- B62D55/26—Ground engaging parts or elements
Definitions
- the present invention relates to a crawler type traveling apparatus and a wheel assembly.
- the crawler belt type traveling device includes a crawler belt, a sprocket, an idler, an upper wheel, a lower wheel, and the like, and driving force from a driving source such as an engine is transmitted to the crawler via the sprocket. Thereby, the crawler belt is driven and the vehicle can be driven.
- the crawler belt type traveling device 1 is provided on each of the left and right sides of a vehicle main body (not shown), and drives the crawler belt 2 to drive the vehicle.
- the crawler belt type traveling device 1 includes a track frame 3, an idler 4, a sprocket 5, a plurality of lower rollers 6, a plurality of upper rollers 10, and a crawler belt 2.
- the track frame 3 is disposed on the side of the vehicle body, and an idler 4, a lower roller 6, and an upper roller 10 are attached to the track frame 3.
- the idler 4 is arranged at a distance from the sprocket 5 in the front-rear direction.
- the idler 4 is rotatably provided with respect to the track frame 3 and is driven to rotate when the crawler belt 2 is driven.
- the sprocket 5 is rotationally driven by a driving force from a driving source such as an engine.
- the plurality of downwheels 6 are provided below the track frame 3 and are provided between the sprocket 5 and the idler 4.
- the lower roller 6 is provided so as to be able to swing up and down and to be rotatable with respect to the track frame 3, and is driven to rotate when the crawler belt 2 is driven.
- the upper roller 10 is provided on the upper part of the track frame 3 and is rotatably provided to the track frame 3. The upper roller 10 is driven to rotate as the crawler belt 2 is driven.
- the crawler belt 2 has an endless shape and is stretched over the sprocket 5, the idler 4, the lower roller 6, and the upper roller 10. As shown in FIG. 5, the crawler belt 2 includes a plurality of crawler plates 7, a first link portion 8, and a second link portion 9, and the plurality of crawler plates 7 are connected to the first link portion 8. The second link portion 9 is connected endlessly.
- the first link portion 8 is composed of a plurality of first link members 11.
- the first link members 11 are respectively fixed to the shoe plates 7, and the first link members 11 are connected to each other to connect the shoe plates 7.
- the second link portion 9 has the same structure as the first link portion 8 and has a second link member 12.
- the second link portion 9 is arranged at a distance from the first link portion 8 in a direction parallel to the axial direction of the sprocket 5 and the lower roller 6 (hereinafter simply referred to as “axial direction”). .
- FIG. 6 shows the plane and side of the link member.
- FIG. 6A shows the plane of the first link member 11 and the second link member 9, and
- FIG. 6B shows the side surface of the first link member 11.
- the plane of the first link member 11 shown in FIG. 6A is a surface located on the opposite side to the surface attached to the crawler plate 7, and a part thereof (hereinafter referred to as “tread surface R”)
- the idler 4, the lower roller 6, and the upper roller 10 are in contact with each other.
- the first link member 11 has a first end portion 13, a second end portion 14, and an intermediate portion 15.
- the first end portion 13 is located on one end side of the first link member 11 and is provided with a pin hole 16.
- the pin hole 16 penetrates the first link member 11 in the axial direction, and a connecting pin 17 (see FIG. 5) described later is press-fitted.
- the second end portion 14 is located on the other end side of the first link member 11, and a bush hole 18 is provided.
- the bush hole 18 passes through the first link member 11 in the axial direction, and a bush 19 (see FIG. 5) described later is press-fitted.
- the intermediate portion 15 is located between the first end portion 13 and the second end portion 14.
- the thickness of the first end portion 13 in the axial direction is smaller than the thickness of the intermediate portion 15 in the axial direction.
- An axially outer side surface (hereinafter referred to as “outer surface”) 13a of the first end portion 13 and an outer surface 15a of the intermediate portion 15 are generally flush with each other in plan view.
- the axially inner side surface (hereinafter referred to as “inner side surface”) 13b of the first end portion 13 has a shape that is recessed axially outward from the inner side surface 15b of the intermediate portion 15.
- a step portion 15 c is formed between the inner surface 15 b of the portion 15.
- the inner side surface 14b of the second end portion 14 and the inner side surface 15b of the intermediate portion 15 are substantially flush with each other in plan view.
- the outer surface 14a of the second end portion 14 has a shape recessed inward in the axial direction from the outer surface 15a of the intermediate portion 15, and a step portion 15d is formed between the outer surface 15a of the intermediate portion 15 and the outer surface 15a. Yes.
- the 1st link part 8 is comprised by the 1st end part 13 and the 2nd end part 14 of each 1st link member 11 being arrange
- the second link member 12 has the same configuration except that it is symmetric with the first link member 11. As shown in FIG. 5, the second link member 12 has a third end portion 23, a fourth end portion 24, and an intermediate portion 25.
- the third end portion 23 is located on one end side of the second link member 12 and corresponds to the first end portion 13.
- a pin hole 16 is provided in the third end portion 23.
- the fourth end 24 is located on the other end side of the second link member 12 and corresponds to the second end 14.
- a bush hole 18 is provided in the fourth end portion 24.
- the intermediate portion 25 is located between the third end portion 23 and the fourth end portion 24.
- connection of the 1st link member 11, the connection of the 2nd link member 12, and the connection of the 1st link member 11 and the 2nd link member 12 are performed by the structure as shown in FIG. Specifically, the bush 19 is press-fitted and fixed to the bush hole 18 of the first link member 11 and the bush hole 18 of the second link member 12. Further, the connecting pin 17 is inserted into the bush 19. One end of the connecting pin 17 is press-fitted and fixed in the pin hole 16 of the first end 13 located outside the second end 14. The other end of the connecting pin 17 is press-fitted into the pin hole 16 of the third end 23 located outside the fourth end 24 and fixed. With such a connection structure, the first link members 11 are connected to each other so as to be rotatable. The same applies to the second link member 12. JP 2006-89023 A
- the lower roller 6 contacts the tread surface R of the first link portion 8 and the second link portion 9. For this reason, the tread surface R of the 1st link part 8 or the 2nd link part 9 wears out while driving
- the tread surface R of the 1st link part 8 or the 2nd link part 9 wears out while driving
- the wear amount of a part of the tread surface R is relatively large, a dent in the axial direction of the link members 11 and 12 occurs in the part of the part.
- the tread surface R has a shape that undulates in the longitudinal direction of the link members 11 and 12 (left and right direction in FIG. 6B).
- Such a wavy tread R causes a vibration during traveling and gives a driver an unpleasant feeling. For this reason, when the degree of the depression of the tread surface R is remarkably increased, the link members 11 and 12 need to be replaced. In other words, the component life of the link members 11 and 12 is shortened by this wavy uneven wear.
- An object of the present invention is to provide a crawler-type traveling device and a wheel assembly that can reduce uneven wear on the tread surface of a link member.
- the crawler belt type traveling apparatus includes a plurality of crawler plates, a first link portion, a wheel, and a shaft.
- a 1st link part connects a shoeboard endlessly.
- the wheel rotates by being brought into contact with the first link portion.
- the shaft rotatably supports the wheel.
- the first link part has a plurality of first link members.
- the plurality of first link members are attached to each of the crawler plates, and their end portions are arranged so as to overlap each other in the axial direction of the shaft.
- the wheel has a first roller and a second roller.
- the second roller is provided so as to be able to rotate independently of the first roller side by side along the inner side in the axial direction of the first roller, and overlaps with the first end portion of the end portions of the first link member to the inner side in the axial direction. It abuts on the second end located.
- the first roller and the second roller of the wheel are arranged side by side in the axial direction and are provided to be rotatable independently of each other.
- abuts to the 1st end part of a 1st link member.
- the second roller contacts the second end of the first link member.
- the crawler-type traveling device is the crawler-type traveling device according to the first invention, further comprising a second link portion.
- the 2nd link part has a plurality of 2nd link members, and is arranged at a distance in the axial direction inner side to the 1st link part.
- the plurality of second link members are attached to each of the crawler plates, and their end portions are arranged so as to overlap each other in the axial direction.
- the wheel further includes a third roller, a fourth roller, and a spacer.
- a 4th roller is provided in the axial direction outer side of a 3rd roller so that it can rotate independently with respect to a 3rd roller, and overlaps with the 3rd end part among the edge parts of a 2nd link member, and it is an axial direction outer side. It abuts on the positioned fourth end.
- the spacer is provided between the second roller and the fourth roller in the axial direction, and is provided to be rotatable independently of the second roller and the fourth roller.
- the first roller, the second roller, the third roller, the fourth roller, and the spacer are rotatably provided independently of each other. For this reason, when a 1st roller, a 2nd roller, a 3rd roller, and a 4th roller contact
- the crawler type traveling apparatus is the crawler type traveling apparatus of the first aspect, further comprising a second link portion.
- the second link portion has a plurality of second link members, and is disposed at a distance inward in the axial direction with respect to the first link portion.
- the plurality of second link members are attached to each of the crawler plates, and their end portions are arranged so as to overlap each other in the axial direction.
- the wheel further includes a third roller.
- the second roller has a first roller part, a second roller part, and a spacer part.
- the first roller portion is provided side by side on the inner side in the axial direction of the first roller, and abuts on the second end portion.
- a 2nd roller part is provided along with the axial direction outer side of a 3rd roller, overlaps with a 3rd end part among the edge parts of a 2nd link member, and contact
- the spacer portion is provided between the first roller portion and the second roller portion in the axial direction. And the 1st roller part, the 2nd roller part, and the spacer part are provided integrally.
- the second roller is provided so as to be independently rotatable with respect to the first roller and the third roller.
- the first roller, the second roller, and the third roller are rotatably provided independently of each other. For this reason, when a 1st roller, a 2nd roller, and a 3rd roller contact
- a wheel assembly for a crawler type traveling apparatus is a wheel assembly for supporting and guiding a crawler track, and includes a wheel and a shaft that rotatably supports the wheel.
- the wheel has a first roller and a second roller.
- a 1st roller and a 2nd roller are arrange
- the first roller and the second roller can rotate independently even when the first roller and the second roller are placed under different conditions with respect to the roller rotation during traveling by the crawler type traveling device.
- a wheel assembly for a crawler type traveling apparatus is the wheel assembly of the fourth invention, wherein the crawler type traveling apparatus provided with the wheel assembly includes a plurality of crawler plates. And a plurality of link members that are attached to each of the crawler plates and whose end portions overlap each other in the axial direction of the shaft and are connected endlessly. The wheel is driven to rotate by coming into contact with the link member.
- abuts one edge part arrange
- the first roller and the second roller of the wheel are arranged in an axial direction corresponding to one end and the other end of the link member arranged to overlap each other at the link member connecting portion. They are arranged side by side and are provided so as to be rotatable independently of each other. For this reason, when a 1st roller and a 2nd roller contact
- a wheel assembly for a crawler type traveling apparatus includes a wheel and a shaft.
- the wheel has a first roller, a second roller, and a third roller.
- the shaft has a rotating shaft and supports the wheel so as to be rotatable about the rotating shaft.
- the first roller is positioned at one end on the outer side in the rotation axis direction and is rotatably supported by the shaft.
- the third roller is positioned at the other inner end in the rotation axis direction and is rotatably supported by the shaft.
- the second roller has a first roller part, a second roller part, and a spacer part. The second roller is disposed between the first roller and the third roller so that the shaft can rotate independently of the first roller and the third roller.
- the first roller portion faces the first roller and is adjacent to the inner side in the rotation axis direction.
- the second roller portion faces the third roller and is adjacent to the outer side in the rotation axis direction.
- a spacer part is located between a 1st roller part and the said roller part, and the diameter of a spacer part is smaller than the diameter of the outer peripheral part of a 1st roller part and a 2nd roller part.
- the first roller and the first roller portion of the adjacent second roller can rotate independently of each other.
- the 3rd roller and the 2nd roller part of the adjacent 2nd roller can rotate independently, respectively. For this reason, even if those adjacent parts are placed under different conditions with respect to the roller rotation, it is possible to cope.
- FIG. 1 is a cross-sectional view of a wheel assembly 91 provided in the crawler belt type traveling apparatus according to the first embodiment of the present invention.
- the wheel assembly 91 can be attached to or detached from the above-described track frame 3 (see FIG. 4) as a unit, and includes the wheel 31 and the shaft 26.
- the roller assembly 91 is provided at the position of the lower roller 6 shown in FIG.
- Other structures such as the crawler belt 2 of the crawler belt type traveling device are substantially the same as those described above as the prior art, and a description thereof is omitted.
- the wheel 31 is divided into a plurality of roller segments in the axial direction, and each roller segment is rotatably provided.
- the roller 31 has a first roller 41, a second roller 42, a third roller 43, a fourth roller 44, and a spacer 45, each of which independently rotates with respect to the shaft 26.
- the axially outer side refers to the rotation axis of the shaft 26 ( It is a direction parallel to the longitudinal axis) and means the right side in FIG.
- the inner side in the axial direction means a direction parallel to the rotation axis of the shaft 26 and the left side in FIG.
- the roller 31 contacts the first link portion 8 and the second link portion 9.
- the first end portion 13 of the first link member 11 constituting the first link portion 8 is arranged so as to overlap the second end portion 14 of another first link member 11 in the connecting portion of the link member.
- the second end portion 14 is positioned outside in the axial direction.
- the second end portion 14 is disposed on the inner side in the axial direction with respect to the first end portion 13.
- the third end portion 23 of the second link portion 9 is disposed symmetrically with the first end portion 13 and is located on the inner side in the axial direction with respect to the fourth end portion 24.
- the fourth end portion 24 is disposed symmetrically with the second end portion 24 and is located on the outer side in the axial direction with respect to the third end portion 23.
- the first roller 41 is disposed at a position in contact with the first end portion 13.
- the first roller 41 includes a first contact portion 41a, a flange portion 41b, and a boss portion 41c.
- the first abutting portion 41 a is a portion that abuts on the first end portion 13, and has a cylindrical curved surface shape having a length corresponding to the width of the first end portion 13 with the rotation axis of the shaft 26 as a central axis.
- the flange portion 41b is continuous with the first contact portion 41a on the outer side in the axial direction of the first contact portion 41a, and has a larger diameter than the first contact portion 41a.
- the outer peripheral part of the flange part 41b is located in the axial direction outer side of the 1st link member 11, and the movement to the axial direction outer side of the 1st link member 11 is controlled.
- the boss portion 41c is provided on the outer surface of the flange portion 41b.
- a hole through which the shaft 26 is passed is provided at the center of the first roller 41.
- a bearing bushing 46 is fitted in the hole, and the first roller 41 is rotatably supported with respect to the shaft 26 via the bearing bushing 46.
- the second roller 42 is arranged next to the inner side in the axial direction of the first roller 41, and is provided to be rotatable independently of the first roller 41.
- the second roller 42 is disposed at a position in contact with the second end portion 14.
- the 2nd roller 42 has the 2nd contact part 42a and the small diameter part 42b.
- the second abutting portion 42a has the same outer diameter as the first abutting portion 41a, is a portion that abuts on the second end portion 14, and the second end portion 14 has the rotation axis of the shaft 26 as a central axis. It has a cylindrical curved surface shape with a length corresponding to the width of.
- the small diameter portion 42b is continuous with the second contact portion 42a on the inner side in the axial direction of the second contact portion 42a, and has a smaller outer diameter than the second contact portion 42a.
- a hole through which the shaft 26 is passed is provided at the center of the second roller 42.
- a bearing bush 47 is fitted into this hole, and the second roller 42 is supported via the bearing bush 47 so as to be rotatable with respect to the shaft 26.
- the outer surface of the second roller 42 is in pressure contact with the inner surface of the first roller 41, and a seal member 81 is provided between the outer surface of the second roller 42 and the inner surface of the first roller 41. ing. For this reason, the 1st roller 41 and the 2nd roller 42 can slide mutually, maintaining the state where the inside was sealed.
- the third roller 43 is disposed at a position in contact with the third end portion 23 at a position spaced inward in the axial direction from the first roller 41 and the second roller.
- the third roller 43 is symmetrical to the first roller 41 with respect to a plane perpendicular to the rotation axis of the shaft 26, and has a third contact portion 43a, a flange portion 43b, and a boss portion 43c. Yes. Since the shape of these parts is the same as that of each part of the 1st roller 41 mentioned above except being symmetrical, detailed description is abbreviate
- a hole through which the shaft 26 passes is provided at the center of the third roller 43.
- a bearing bush 48 is fitted into the hole, and the third roller 43 is supported by the shaft 26 via the bearing bush 48 so as to be rotatable.
- the fourth roller 44 is arranged next to the outside in the axial direction of the third roller 43, and is provided to be rotatable independently of the third roller 43.
- the fourth roller 44 is disposed at a position in contact with the fourth end 24 of the second link member 12.
- the fourth roller 44 is symmetrical to the second roller 42 with respect to a plane perpendicular to the rotation axis of the shaft 26, and includes a fourth contact portion 44a and a small diameter portion 44b. Since the shape of these parts is the same as that of each part of the 2nd roller 42 mentioned above except being symmetrical, detailed description is abbreviate
- a hole through which the shaft 26 passes is provided at the center of the fourth roller 44.
- a bearing bush 49 is fitted into this hole, and the fourth roller 44 is supported so as to be rotatable with respect to the shaft 26 via the bearing bush 49.
- the inner surface of the fourth roller 44 is in pressure contact with the outer surface of the third roller 43, and a seal member 82 is provided between the inner surface of the fourth roller 44 and the outer surface of the third roller 43. ing. For this reason, the 3rd roller 43 and the 4th roller 44 can slide mutually, maintaining the state where the inside was sealed.
- the spacer 45 is provided between the second roller 42 and the fourth roller 44 in the axial direction, and is provided to be rotatable independently of the second roller 42 and the fourth roller 44.
- the outer diameter of the spacer 45 is smaller than the outer diameter of the first to fourth contact portions 41a to 44a and is substantially the same as the outer diameter of the small diameter portions 42b and 44b.
- the spacer 45 is disposed at a position facing the bush 19 that connects the first link member 11 and the second link member 12.
- a hole through which the shaft 26 passes is provided at the center of the spacer 45.
- Bearing bushes 50 and 51 are fitted in the holes, and the spacer 45 is rotatably supported with respect to the shaft 26 via the bearing bushes 50 and 51.
- the outer surface of the spacer 45 is in pressure contact with the inner surface of the second roller 42, and a seal member 83 is provided between the outer surface of the spacer 45 and the inner surface of the second roller 42. For this reason, the spacer 45 and the 2nd roller 42 can slide mutually, maintaining the state by which the inside was sealed.
- the inner surface of the spacer 45 is in pressure contact with the outer surface of the fourth roller 44, and a seal member 84 is provided between the inner surface of the spacer 45 and the outer surface of the fourth roller 44. For this reason, the spacer 45 and the 4th roller 44 can slide mutually, maintaining the state by which the inside was sealed.
- first to fourth rollers 41 to 44 and the spacer 45 described above are restricted from moving in the axial direction by the first collar member 85 and the second collar member 86. Further, the first collar member 85 and the second collar member 86 sandwich the first to fourth rollers 41 to 44 and the spacer 45 so that the first to fourth rollers 41 to 44 and the spacer 45 are pressed against each other. .
- the first collar member 85 is provided with a hole through which the shaft 26 is fitted.
- the first collar member 85 is disposed on the outer side in the axial direction of the outer surface of the first roller 41 so as to cover the boss portion 41 c of the first roller 41.
- a first floating seal 87 is provided between the first collar member 85 and the first roller 41, and the first roller 41 is the first while maintaining the state where the inside of the first roller 41 is sealed.
- the collar member 85 can be rotated.
- the second collar member 86 is provided with a hole through which the shaft 26 is fitted.
- the second collar member 86 is disposed on the inner side in the axial direction of the inner surface of the third roller 43 so as to cover the boss portion 43 c of the third roller 43.
- a second floating seal 88 is provided between the second collar member 86 and the third roller 43, and the third roller 43 is second while maintaining the state where the inside of the third roller 43 is sealed.
- the collar member 86 can be rotated.
- an oil supply hole 26a is provided inside the shaft 26, and lubricating oil is supplied from the outside of the shaft 26 to the bearing surfaces of the bearing bushes 46 to 51 through the oil supply hole 26a. Further, a concave portion 52 that is recessed radially outward is formed in an axially intermediate portion in the hole of the spacer 45, and serves as an oil reservoir in which the supplied lubricating oil is stored. Further, both end portions of the shaft 26 protrude from the first collar member 85 and the second collar member 86, respectively. By fixing this end to the lower part of the track frame 3, the wheel assembly 91 is attached to the crawler type traveling device.
- the lower roller 6 In the positional relationship B, the lower roller 6 is in contact with the wide intermediate portion 15 of the tread surface R of the first link member 11 constituting the first link portion 8. In this case, for example, when the crawler belt 2 moves from left to right in FIG. 7, the lower rolling wheel 6 rolls on the tread surface R and rotates counterclockwise.
- the positional relationship A indicates that the lower rolling wheel 6 is in contact with the first end portion 13 and the second end portion 14 having a narrow width on the tread surface R, in other words, near the connection portion of the first link portion 8. This is the case.
- the downward rolling wheel 6 is given a rotational force component accompanying the upward / downward movement due to the bending at the connecting portion of the first link portion 8. .
- the contact portion contacts the first end portion 13. A counterclockwise rotational force is applied to the part.
- a clockwise rotational force is applied to the lower wheel 16 at a portion in contact with the second end portion 14.
- the lower roller is provided at the contact portion with the first end portion 13.
- the portion that contacts the second end portion 14 rotates faster than the rotation according to the force applied from the first link portion 8.
- a shift occurs between the movement of the first link portion 8 and the movement of the lower roller 6, and the lower roller 6 is in the first link. It will slide on the tread R of the part 8. For this reason, assuming that the load applied to the contact portion is the same, wear due to slip is remarkably larger than wear due to rolling, and thus uneven wear of the tread surface R as described above has occurred.
- the contact portions of the first end portion 13 and the second end portion 14 can rotate independently, so that the lower roller 6 in the positional relationship A can be rotated.
- the slip on the tread surface R is eliminated.
- rolling wear having a smaller wear amount than sliding wear can be achieved, so that uneven wear of the tread surface R can be prevented.
- the wheel 31 is divided into first to fourth rollers 41 to 44 and a spacer 45, and the respective parts can rotate relative to each other. For this reason, when the first to fourth rollers 41 to 44 come into contact with the first end portion 13, the second end portion 14, the third end portion 23, and the fourth end portion 24 of the first link portion 8, It can be rotated according to the movement of the end portion, and wear at the contact portion can be suppressed.
- the first end portion 13, the second end portion 14 of the first link portion 8, the third end portion 23, and the fourth end portion 24 of the second link portion 9 are different from each other, for example, at different inclination angles.
- the first to fourth rollers 41 to 44 are brought into contact with each other to give different rotation speeds to the rollers 41 to 44, the first to fourth rollers 41 to 44 rotate relative to each other, so that the difference in the mode of each end portion is achieved. Can alleviate the effects. Further, the weight of each of the rollers 41 to 44 is smaller than that of the conventional non-split wheel. For this reason, wear at the contact portion can be suppressed.
- FIG. 2 shows a cross-sectional view of the wheel assembly 92 provided in the crawler belt type traveling apparatus according to the second embodiment of the present invention.
- the wheel assembly 92 includes the wheel 32 and the shaft 26.
- the shaft 26 is the same as that of the first embodiment.
- the roller 32 has a first roller 61, a second roller 62, and a third roller 63.
- the first roller 61, the second roller 62, and the third roller 63 are separate from each other.
- the first roller 61 has the same configuration as that of the first roller 41 in the first embodiment, and is disposed at a position where it abuts on the first end portion 13.
- the third roller 63 has the same configuration as that of the third roller 43 in the first embodiment, and is disposed at a position where it abuts on the third end portion 23.
- the second roller 62 is an intermediate roller located between the first roller 61 and the third roller 63.
- the second roller 62 is provided so as to be independently rotatable with respect to each of the first roller 61 and the third roller 63, and includes a first roller part 64, a second roller part 65, and a spacer part 66. Yes.
- the first roller portion 64 has the same configuration as the second roller 42 in the first embodiment, and is disposed at a position where it abuts on the second end portion 14.
- the second roller portion 65 has the same configuration as the fourth roller 44 in the first embodiment, and is disposed at a position where the second roller portion 65 contacts the fourth end portion 24.
- the spacer part 66 has the same configuration as the spacer 45 in the first embodiment, and is located between the first roller part 64 and the second roller part 65.
- the first roller portion 64, the second roller 62 portion, and the spacer portion 66 are integrally formed and rotate integrally with the shaft 26.
- the roller 32 is divided into first to third rollers 61 to 63, and each part can rotate independently of each other.
- the first to third rollers 61 to 63 can rotate independently when contacting the first end portion 13, the second end portion 14, the third end portion 23, and the fourth end portion 24. It is possible to suppress wear at the contact portion.
- the first roller 61 and the second roller 62 are It can rotate independently, and the influence of the difference in the aspect of each edge part can be relieved.
- FIG. 3 shows a cross-sectional view of the wheel assembly 93 provided in the crawler type traveling apparatus according to the third embodiment of the present invention.
- the wheel assembly 93 includes a shaft 26 and a wheel 33 that rotates around the shaft 26.
- the shaft 26 is the same as that of the first embodiment.
- the roller 33 includes a first roller 71, a second roller 72, a third roller 73, and a bush 74.
- the 1st roller 71 and the 3rd roller 73 are united via the bush 74, and comprise an edge part roller.
- the second roller 72 is an intermediate roller positioned between the first roller 71 and the third roller 73.
- the first roller 71 is disposed at a position where the outer periphery of the first roller 71 is in contact with the first end 13 of the first link member 8 at one end on the outer side in the rotation axis direction of the shaft 26. It has a portion 71b, a boss portion 71c, and a press-fit portion 71d.
- the first contact portion 71a, the flange portion 71b, and the boss portion 71c are the same as the first contact portion 41a, the flange portion 41b, and the boss portion 41c of the first embodiment, respectively.
- the press-fit portion 71d has a cylindrical shape with a smaller diameter than the first contact portion 71a, and protrudes inward in the axial direction from the inner side surface of the first contact portion 71a.
- the third roller 73 is disposed at a position where the outer periphery of the third roller 73 is in contact with the third end 23 of the first link member 8 at the other end on the inner side in the rotation axis direction of the shaft 26.
- the 3rd roller 73 is the same shape as the 1st roller 71, and has the 3rd contact part 73a, the flange part 73b, the boss
- the third contact portion 73a, the flange portion 73b, and the boss portion 73c are the same as the third contact portion 43a, the flange portion 43b, and the boss portion 43c of the first embodiment, respectively.
- the press-fit portion 73 d has a cylindrical shape with a smaller diameter than the third contact portion 73 a and has the same diameter as the press-fit portion 71 d of the first roller 71.
- the press-fit portion 73d protrudes outward in the axial direction from the outer surface of the third contact portion 73a.
- the bush 74 is a cylindrical member.
- a press-fit portion 71d of the first roller 71 is fixed to the inner periphery of the axially outer portion of the bush 74 by press-fitting.
- a press-fit portion 73d of the third roller 73 is fixed to the inner periphery of the axially inner portion of the bush 74 by press-fitting.
- the shaft 26 is inserted into the inner periphery of the press-fit portions 71d and 73d fixed to each other by the bush 74, and the press-fit portions 71d and 73d are rotatable with respect to the shaft 26.
- the 1st roller 71 and the 3rd roller 73 are united via the bush 74, and form an end roller.
- the second roller 72 (intermediate portion roller) is provided so as to be independently rotatable with respect to the first roller 71 and the third roller 73 of the end roller, and the first roller portion 72a, the second roller portion 72b, A spacer 72c is provided.
- the first roller part 72a, the second roller part 72b, and the spacer part 72c are respectively the same as the first roller part 64, the second roller part 65, and the spacer part 66 of the second embodiment, and are integrally formed. ing.
- the 2nd roller 72 is arrange
- the wheel 33 is divided into a first roller 71, a third roller 73, and a second roller 72, and can rotate independently of each other. For this reason, similarly to the wheel assembly 92 according to the second embodiment, it is possible to reduce uneven wear of the tread surface R of the link members 11, 12, that is, dent at the contact portion. Furthermore, since the first roller 71 and the third roller 73 at both ends of the roller wheel 33 are integrated end rollers, the load on the seal member is reduced.
- the present invention is applied to the lower roller, but the present invention can also be applied to the upper roller 10 and the idler 4.
- the present invention can be applied to both a lower roller that can swing up and down with respect to the track frame and a lower roller that is fixed so as not to swing in the vertical direction of the track frame.
- the end roller is configured such that the first roller 71 and the third roller 74 are integrated with each other via the bush 74, but the first roller 71 and the third roller 74 are directly press-fitted. It is good also as one.
- the shape of the link member is not limited to the above. As long as the end portions of the link members are arranged so as to be overlapped and connected in the axial direction, the same problem of wear as described above may occur, so the present invention is effective.
- the present invention has an effect of reducing uneven wear on the tread of the link member, and is useful as a crawler type traveling device and a wheel assembly.
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Abstract
Description
7 履板
8 第1リンク部
9 第2リンク部
11 第1リンク部材
26 シャフト
31,32 転輪
41 第1ローラー
42 第2ローラー
43 第3ローラー
44 第4ローラー
45 スペーサー
61 第1ローラー
62 第2ローラー
63 第3ローラー
64 第1ローラー部
65 第2ローラー部
66 スペーサー部
71 第1ローラー
72 第2ローラー
73 第3ローラー
91~93 転輪組立体
〔構成〕
本発明の第1実施形態に係る履帯式走行装置が備える転輪組立体91の断面図を図1に示す。転輪組立体91は、上述したトラックフレーム3(図4参照)に対して、ユニットとして、取り付け、又は、取り外し可能なものであり、転輪31とシャフト26とを備える。この転輪組立体91は、図4に示す下転輪6の位置に設けられる。履帯式走行装置の履帯2などの他の構造は、従来技術として上述したものと概ね同様であり説明を省略する。
長手方向の軸)に平行な方向であって図1における右側を意味している。また、軸方向内側とは、シャフト26の回転軸に平行な方向であって図1における左側を意味している。
成する第1リンク部材11の第1端部13は、上述したように、リンク部材の連結部分において、別の第1リンク部材11の第2端部14と重なって配置され、第2端部14に対して軸方向外側に位置している。第2端部14は、第1端部13に対して軸方向内側に配置されている。また、第2リンク部9の第3端部23は、第1端部13と対称に配置されており、第4端部24に対して軸方向内側に位置している。第4端部24は、第2端部24と対称に配置されており、第3端部23に対して軸方向外側に位置している。
この転輪組立体91では、転輪31が、第1~第4ローラー41~44およびスペーサー45に分割されており、各部が互いに相対回転可能となっている。このため、第1~第4ローラー41~44が、第1リンク部8の第1端部13、第2端部14、第3端部23、第4端部24と当接する際に、各端部の動きに応じて回転することができ、当接部分での摩耗を抑えることができる。例えば、第1リンク部8の第1端部13、第2端部14、第2リンク部9の第3端部23、第4端部24が、それぞれ異なる態様、例えば、異なる傾斜角度で第1~第4ローラー41~44に当接して各ローラー41~44に異なる回転速度を与える場合でも、第1~第4ローラー41~44が互いに相対回転することにより、各端部の態様の違いの影響を緩和することができる。また、各ローラー41~44の重量は、従来の分割されていない転輪よりも小さい。このため、当接部分での摩耗を抑えることができる。
〔構成〕
本発明の第2実施形態に係る履帯式走行装置が備える転輪組立体92の断面図を図2に示す。転輪組立体92は、転輪32とシャフト26とを備える。シャフト26は第1実施形態と同様のものである。転輪32は、第1ローラー61、第2ローラー62、第3ローラー63を有する。第1ローラー61、第2ローラー62、第3ローラー63はそれぞれ別体となっている。
この転輪組立体92においては、転輪32が、第1~第3ローラー61~63に分割されており、各部が互いに独立して回転可能となっている。このため、第1~第3ローラー61~63が、第1端部13、第2端部14、第3端部23、第4端部24と当接する際に、独立して回転することができ、当接部分での摩耗を抑えることができる。例えば、第1リンク部8の第1端部13と第2端部14とが異なる態様で第1ローラー61、第2ローラー62に当接する場合でも、第1ローラー61と第2ローラー62とが独立して回転することができ、各端部の態様の違いの影響を緩和することができる。第2リンク部9の第3端部23と第4端部24とが、異なる態様で第2ローラー62、第3ローラー63に当接する場合も同様である。また、各ローラー61~63の重量は、従来の分割されていない転輪よりも小さい。このため、当接部分での摩耗を抑えることができる。
〔構成〕
本発明の第3実施形態に係る履帯式走行装置が備える転輪組立体93の断面図を図3に示す。転輪組立体93は、シャフト26と、シャフト26の周りを回動する転輪33とを備える。シャフト26は第1実施形態と同様のものである。転輪33は、第1ローラー71、第2ローラー72、第3ローラー73、ブシュ74を有する。第1ローラー71と第3ローラー73とはブシュ74を介して一体とされ、端部ローラーを構成する。第2ローラー72は、第1ローラー71と第3ローラー73との間に位置する中間部ローラーである。
この転輪組立体93においては、転輪33が、第1ローラー71と第3ローラー73と第2ローラー72とに分割されており、互いに独立して回転可能となっている。このため、上記の第2実施形態にかかる転輪組立体92と同様に、リンク部材11,12の踏面Rの偏摩耗、すなわち当接部分での凹みを低減することができる。更に、転輪33の両端にある第1ローラー71と第3ローラー73とが一体の端部ローラーとされることにより、シール部材の負荷が軽減される。
上記の実施形態では、下転輪に対して本発明が適用されているが、上転輪10やアイドラ4に対しても本発明の適用が可能である。
Claims (6)
- 複数の履板と、
前記履板を無端状に連結する第1リンク部と、
前記第1リンク部に当接することによって従動回転する転輪と、
前記転輪を回転可能に支持するシャフトと、
を備え、
前記第1リンク部は、前記履板のそれぞれに取り付けられ互いの端部が前記シャフトの軸方向に重なって配置されて連結される複数の第1リンク部材を有し、
前記転輪は、
前記第1リンク部材の前記端部のうち前記軸方向外側に位置する第1端部に当接する第1ローラーと、
前記第1ローラーの前記軸方向内側に並んで前記第1ローラーに対して独立して回転可能に設けられ、前記第1リンク部材の前記端部のうち前記第1端部に重なって前記軸方向内側に位置する第2端部に当接する第2ローラーと、
を有する、
履帯式走行装置。 - 前記履板のそれぞれに取り付けられ互いの端部が前記軸方向に重なって配置されて連結される複数の第2リンク部材を有し、前記第1リンク部に対して前記軸方向内側に距離を隔てて配置される第2リンク部をさらに備え、
前記転輪は、
前記第2リンク部材の前記端部のうち前記軸方向内側に位置する第3端部に当接する第3ローラーと、
前記第3ローラーの前記軸方向外側に並んで前記第3ローラーに対して独立して回転可能に設けられ、前記第2リンク部材の前記端部のうち前記第3端部に重なって前記軸方向外側に位置する第4端部に当接する第4ローラーと、
前記軸方向における前記第2ローラーと前記第4ローラーとの間に設けられ、前記第2ローラーおよび前記第4ローラーに対して独立して回転可能に設けられるスペーサーと、
をさらに有する、
請求項1に記載の履帯式走行装置。 - 前記履板のそれぞれに取り付けられ互いの端部が前記軸方向に重なって配置されて連結される複数の第2リンク部材を有し、前記第1リンク部に対して前記軸方向内側に距離を隔てて配置される第2リンク部をさらに備え、
前記転輪は、前記第2リンク部材の前記端部のうち前記軸方向内側に位置する第3端部に当接する第3ローラーをさらに有し、
前記第2ローラーは、
前記第1ローラーの前記軸方向内側に並んで設けられ、前記第2端部に当接する第1ローラー部と、
前記第3ローラーの前記軸方向外側に並んで設けられ、前記第2リンク部材の前記端部のうち前記第3端部に重なって前記軸方向外側に位置する第4端部に当接する第2ローラー部と、
前記軸方向における前記第1ローラー部と前記第2ローラー部との間に設けられるスペーサー部と、
を有し、
前記第1ローラー部と前記第2ローラー部と前記スペーサー部は一体的に設けられており、
前記第2ローラーは、前記第1ローラーおよび第3ローラーに対して独立して回転可能に設けられる、
請求項1に記載の履帯式走行装置。 - 履帯を支持・案内する履帯式走行装置のための転輪組立体であって、
転輪と、
前記転輪を回転可能に支持するシャフトと、
を備え、
前記転輪は、前記シャフトの軸方向に並んで配置され互いに独立して回転可能に設けられる第1ローラーと第2ローラーとを有する、
履帯式走行装置のための転輪組立体。 - 前記履帯式走行装置は、複数の履板と、前記履板のそれぞれに取り付けられ互いの端部が前記シャフトの軸方向に重なって配置され無端状に連結された複数のリンク部材と、を有すものであって、
前記転輪は、前記リンク部材に当接することによって従動回転し、
前記第1ローラーは、前記重なって配置される一方の端部に当接し、
前記第2ローラーは、前記重なって配置される他方の端部に当接する、
ことを特徴とする請求項4に記載の履帯式走行装置のための転輪組立体。 - 第1ローラー、第2ローラー、及び第3ローラーを有する転輪と、
回転軸を持ち、前記回転軸を中心に前記転輪を回転可能に支持するシャフトと、
を備え、
前記第1ローラーは、前記回転軸方向外側一端部に位置して前記シャフトに回転可能に支持され、
前記第3ローラーは、前記回転軸方向内側他端部に位置して前記シャフトに回転可能に支持され、
前記第2ローラーは、第1ローラー部と、第2ローラー部と、スペーサー部とを有し、前記シャフトの廻りを前記第1ローラー及び第3ローラーに対し独立して回転可能に前記第1ローラーと前記第3ローラーとの間に配置され、
前記第1ローラー部は前記第1ローラーに対向して前記回転軸方向内側に隣接しており、
前記第2ローラー部は前記第3ローラーに対向して前記回転軸方向外側に隣接しており、
前記スペーサー部は前記第1ローラー部と前記ローラー部との間に位置し、前記スペーサー部の径は前記第1ローラー部及び第2ローラー部の外周部の径よりも小さい、
ことを特徴とする履帯式走行装置のための転輪組立体。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009553379A JP5113855B2 (ja) | 2008-02-13 | 2009-01-16 | 履帯式走行装置および転輪組立体 |
EP09709793.5A EP2241495A4 (en) | 2008-02-13 | 2009-01-16 | CHENILLE VEHICLE AND ROLLER ASSEMBLY |
US12/810,339 US8366212B2 (en) | 2008-02-13 | 2009-01-16 | Crawler-type travel device and rotational wheel assembly |
CN2009801043270A CN101939210B (zh) | 2008-02-13 | 2009-01-16 | 履带式行驶装置及滚轮组装体 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2008032103 | 2008-02-13 | ||
JP2008-032103 | 2008-02-13 |
Publications (1)
Publication Number | Publication Date |
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WO2009101836A1 true WO2009101836A1 (ja) | 2009-08-20 |
Family
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2009/050562 WO2009101836A1 (ja) | 2008-02-13 | 2009-01-16 | 履帯式走行装置および転輪組立体 |
Country Status (5)
Country | Link |
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US (1) | US8366212B2 (ja) |
EP (1) | EP2241495A4 (ja) |
JP (1) | JP5113855B2 (ja) |
CN (1) | CN101939210B (ja) |
WO (1) | WO2009101836A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5230836B1 (ja) * | 2012-09-03 | 2013-07-10 | 株式会社小松製作所 | 履帯用リンクおよび履帯装置 |
CN106068222A (zh) * | 2014-04-16 | 2016-11-02 | 株式会社小松制作所 | 惰轮、履带式行驶装置及磨损板 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102481959B (zh) * | 2010-04-07 | 2013-05-08 | 株式会社小松制作所 | 滚轮装置 |
JP5579284B2 (ja) * | 2013-01-17 | 2014-08-27 | 株式会社小松製作所 | 装軌式作業車両のためのローラ装置 |
US9840291B2 (en) * | 2013-01-17 | 2017-12-12 | Komatsu Ltd. | Roller device for track-type work vehicle, roller shell unit and roller shell |
US9505453B2 (en) | 2013-08-29 | 2016-11-29 | Caterpillar Inc. | Track joint assemblies |
US9623920B2 (en) | 2013-08-29 | 2017-04-18 | Caterpillar Inc. | Track joint assemblies |
US9604681B2 (en) | 2013-08-29 | 2017-03-28 | Caterpillar Inc. | Track joint assemblies |
US9434425B2 (en) | 2013-08-29 | 2016-09-06 | Caterpillar Inc. | Track joint assemblies |
JP5949826B2 (ja) * | 2014-04-11 | 2016-07-13 | 株式会社デンソー | 車両制御装置 |
USD832308S1 (en) * | 2017-07-27 | 2018-10-30 | Deere & Company | Track link |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0198784U (ja) * | 1987-12-23 | 1989-07-03 | ||
JPH04500789A (ja) * | 1988-10-03 | 1992-02-13 | キャタピラー・インク | 交換可能な弾性トレッドを有するトラックキャリアローラ |
JPH08505338A (ja) * | 1993-01-14 | 1996-06-11 | キャタピラー・インク | 交換可能なフランジを有するトラックローラアセンブリ |
US5803558A (en) * | 1995-08-05 | 1998-09-08 | Intertractor Aktiengesellschaft | Track roller for crawler chain |
JP2004149111A (ja) * | 2002-10-07 | 2004-05-27 | Komatsu Ltd | 履帯式走行車両の転輪 |
JP2006089023A (ja) | 2004-08-27 | 2006-04-06 | Komatsu Ltd | リンク及びその製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4257653A (en) * | 1979-08-23 | 1981-03-24 | Caterpillar Tractor Co. | Track assembly for track-type vehicles with dual link assemblies |
US5312176A (en) * | 1992-09-25 | 1994-05-17 | Catepillar Inc. | Self-aligning idler wheel assembly |
US5997109A (en) * | 1997-09-19 | 1999-12-07 | Caterpillar Paving Products Inc. | Undercarriage assembly for a belted work machine |
US6086169A (en) * | 1998-11-19 | 2000-07-11 | Caterpillar Inc. | Midwheel assembly for a track type tractor |
US6299264B1 (en) * | 1999-01-27 | 2001-10-09 | Caterpillar Inc. | Heat shielded mid-roller |
US6206492B1 (en) * | 1999-07-20 | 2001-03-27 | Caterpillar Inc. | Mid-roller for endless track laying work machine |
JP4299529B2 (ja) * | 2002-11-11 | 2009-07-22 | 株式会社小松製作所 | 履帯式走行装置の上転輪 |
JP2006069525A (ja) * | 2004-08-06 | 2006-03-16 | Komatsu Ltd | 履帯式走行装置 |
EP1834863B1 (en) * | 2004-12-15 | 2011-01-05 | Komatsu Ltd. | Link structure bodies for track belt and link chain formed by connecting the link structure bodies |
-
2009
- 2009-01-16 JP JP2009553379A patent/JP5113855B2/ja not_active Expired - Fee Related
- 2009-01-16 CN CN2009801043270A patent/CN101939210B/zh not_active Expired - Fee Related
- 2009-01-16 US US12/810,339 patent/US8366212B2/en not_active Expired - Fee Related
- 2009-01-16 EP EP09709793.5A patent/EP2241495A4/en not_active Withdrawn
- 2009-01-16 WO PCT/JP2009/050562 patent/WO2009101836A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0198784U (ja) * | 1987-12-23 | 1989-07-03 | ||
JPH04500789A (ja) * | 1988-10-03 | 1992-02-13 | キャタピラー・インク | 交換可能な弾性トレッドを有するトラックキャリアローラ |
JPH08505338A (ja) * | 1993-01-14 | 1996-06-11 | キャタピラー・インク | 交換可能なフランジを有するトラックローラアセンブリ |
US5803558A (en) * | 1995-08-05 | 1998-09-08 | Intertractor Aktiengesellschaft | Track roller for crawler chain |
JP2004149111A (ja) * | 2002-10-07 | 2004-05-27 | Komatsu Ltd | 履帯式走行車両の転輪 |
JP2006089023A (ja) | 2004-08-27 | 2006-04-06 | Komatsu Ltd | リンク及びその製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2241495A4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5230836B1 (ja) * | 2012-09-03 | 2013-07-10 | 株式会社小松製作所 | 履帯用リンクおよび履帯装置 |
WO2014033971A1 (ja) * | 2012-09-03 | 2014-03-06 | 株式会社小松製作所 | 履帯用リンクおよび履帯装置 |
US9272742B2 (en) | 2012-09-03 | 2016-03-01 | Komatsu Ltd. | Crawler belt link and crawler belt apparatus |
DE112012004527B4 (de) | 2012-09-03 | 2018-10-25 | Komatsu Ltd. | Raupen-Ketten-Koppelglied und Raupen-Ketten-Vorrichtung |
CN106068222A (zh) * | 2014-04-16 | 2016-11-02 | 株式会社小松制作所 | 惰轮、履带式行驶装置及磨损板 |
US10668963B2 (en) | 2014-04-16 | 2020-06-02 | Komatsu Ltd. | Idler wheel, crawler-type travel device, and wear plate |
Also Published As
Publication number | Publication date |
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CN101939210A (zh) | 2011-01-05 |
EP2241495A4 (en) | 2013-04-17 |
JPWO2009101836A1 (ja) | 2011-06-09 |
JP5113855B2 (ja) | 2013-01-09 |
CN101939210B (zh) | 2012-11-28 |
US8366212B2 (en) | 2013-02-05 |
US20100270856A1 (en) | 2010-10-28 |
EP2241495A1 (en) | 2010-10-20 |
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