US3797895A - Lower track roller for crawler track - Google Patents

Lower track roller for crawler track Download PDF

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Publication number
US3797895A
US3797895A US00228040A US3797895DA US3797895A US 3797895 A US3797895 A US 3797895A US 00228040 A US00228040 A US 00228040A US 3797895D A US3797895D A US 3797895DA US 3797895 A US3797895 A US 3797895A
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US
United States
Prior art keywords
rings
flanges
resilient
annular
pair
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Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US00228040A
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English (en)
Inventor
K Tomizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nittai Lease Co Ltd
Original Assignee
Nittai Lease Co Ltd
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 Nittai Lease Co Ltd filed Critical Nittai Lease Co Ltd
Application granted granted Critical
Publication of US3797895A publication Critical patent/US3797895A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/096—Endless track units; Parts thereof with noise reducing means
    • B62D55/0966—Low noise rollers, e.g. with antivibration means

Definitions

  • ABSTRACT A lower track roller having a resilient buffer means positioned between the roller body and the tread ring. 7
  • the present invention relates to heavy construction machines, e.g., bulldozers, shoveldozers and the like, and more specifically to improvements in the lower track rollers for the crawler tracks of such machines.
  • the present invention includes a roller body having a pair of flanges to receive a resilient buffer ring.
  • a bearing support is mounted on the axle of the roller and the roller body is mounted on the bearing support.
  • One of the pair of flanges of the roller body is removable and the resilient buffer ring is mounted on the roller body and held between the flanges.
  • the resilient ring has a pair of flanges for receiving a tread ring and a central step for receiving an annular seating ring which depends from the tread ring.
  • PK ⁇ . 1 is a side elevational view of a bulldozer having lower track rollers in accordance with the present invention.
  • FIG. 2 is a vertical cross-sectional view of a lower track roller indicated by [I in FIG. 1.
  • an idler sprocket 1 is operatively connected to a driving sprocket 2 through a crawler track 5.
  • Lower track rollers 3 are rotatably mounted on shafts 6 which are bolted to the frame 4 of the bulldozer.
  • the rollers 3 include a shaft or axle 6 with an outwardly extending flange 7 arranged at the center thereof.
  • An oil supply port 8 is arranged in one end of the axle '6.
  • the oil supply port 8 communicates with an oil duct 10 extending longitudinally through the axle 6 along its axis.
  • Branch oil holes 10a extend radially from the oil duct 10 to the exterior of the axle 6.
  • a pair of cylindrical bearings 11, 11 are rotatably mounted on the axle 6, and have outwardly extending flanges 12, 12 at their inner ends.
  • the bearings 11, 11 are mounted on cylindrical bearing support members 14, 14 which have outwardly extending flanges 13, 13 at their inner ends.
  • the inner ends of the bearing supports 14, 14 and the flanges 12, 12 of the bearings 11, 11 are fixedly connected to each other by pins 15, 15.
  • Roller bodies 17, 17a are mounted in tandem on the bearing supports 14, 14. Near the ends of the outwardly facing surfaces of the bearing supports 14, 14 in circumferential grooves are positioned sealing rings 16, 16 which engage roller bodies 17, 17a.
  • the outwardly extending flanges 13, 13 of the bearing supports 14, 14 and inner ends of the roller bodies 17, 17a are fixedly connected to each other by bolts 18, 18.
  • the assembled bearings 11, 11, bearing supports 14, 14 and roller bodies 17, 17a are mounted on the axle 6.
  • the roller body 17a has a cylindrical extension 20 with a flange 20a extending outwardly from the end of the cylindrical extension 20.
  • the flange 20a mates with the end portion 21 of roller body 17.
  • the end portion 21 includes an annular step 23 and the flange 20a an annular recess which mates with the annular step 23.
  • the roller bodies 17, 17a are connected to each other by bolts 24; watertight engagement between the roller bodies 17, 17a is provided by sealing ring 22 which fits in an annular recess in roller 17 and engages roller 17a.
  • the roller bodies 17, 17a have inner and outer flanges 25 and 32 extending outwardly from their outer periphery to receive a pair of resilient buffer rings 27, 27 and a pair of tread rings 30.
  • the resilient buffer rings 27 are substantially U-shaped and may be advantageously made of two pieces as shown in FIG. 2 or one piece if desired.
  • the resilient buffer rings 27 are flxedly mounted on the roller members 17, 17a and by cooperation between inner flanges 25 of the roller bodies 17, 17a and outer flanges 32 of end covers 33.
  • the end covers 33 are removable and are secured to the roller bodies 17 and by bolts 34.
  • Each resilient buffer ring 27 has a flange 26 at one end and a step portion 27a at the opposite end.
  • the tread ring 30 has a pair of outwardly extending flanges 28 at its ends which engage and substantially overlie the flanges 26 of the resilient buffer rings 27.
  • each tread ring 30 has an annular seating ring 31 depending from the inner surface the reoffThe annular seating ring 31 is dimensioned to be received in the annular channel formed between the assembled resilient buffer rings 27 and seats on juxtaposed step portions 270.
  • the tread ring 30 is mounted on a pair of resilient buffer rings 27 and compressively held thereagainst by the compressive force exerted on the tread ring 30 through the pair of resilient buffer rings 27 by the flanges 25 and 32.
  • the resilient buffer rings 27 should be made of a durable resilient material, e.g., synthetic rubber or polyurethane, and may advantageously include a plurality of annular grooves 35 extending circumferentially therearound which function as shock absorbers.
  • annular sealing rings 36, 36 and annular supporting rings 37, 37 are positioned in an annular recess formed between the axle 6 and the annular projections 14a of the bearing supports 14, 14 and the annular projections 38a of supporting members 38.
  • Axle 6 also includes annular sealing rings 40 positioned in circumferential grooves for engagement with the end covers 33, and annular stop rings 41 which control the longitudinal position of the supporting members 38 on the axle 6.
  • the branched oil holes 10a communicate with the interior of the supporting rings 37, 37 and further communicate with oil pockets 43 provided in the bearing supports 14, 14 and bearings 11, 11 through oil paths 42.
  • the outer projections 38b, 38b of the supporting members 38, 38 are secured to the frame 4 by bolts.
  • the assembled lower crawler track roller 3 is connected to the endless crawler track through a pair of links 5a.
  • the links 5a have one end bolted to the crawler track 5 and the other end riding on tread rings 30.
  • the resilient buffer rings 27 arranged between the roller bodies 17, 17a and the tread rings 30 absorb the shock from the frame 4 and the crawler track 5, preventing vibration (and noise), enabling an increase in operational speed and increased machine life.
  • a lower track roller for use with a crawler track of a heavy construction machine comprising:
  • roller body means rotatably mounted on said axle
  • roller body means having two pair of flanges
  • each pair of flanges including inner and outer outwardly extending flanges spaced relative to one another to form an annular channel;
  • each of said resilient buffer rings having a pair of outwardly extending flanges which contact and are compressively retained by said inner and outer flanges of said annular channels, said resilient buffer rings including an annular recess;
  • each of said annular tread rings mounted, respectively, on one of said buffer rings, each of said annular tread rings having a pair of outwardly extending flanges which engage said flanges of said resilient buffer rings, said tread rings each including an annular seating ring depending therefrom, said annular seating rings being seated within said annular recesses of said resilient buffer rings.
  • each of said resilient buffer rings includes a pair of identical resilient rings having step portions
  • annular seating rings are received between each of said assembled pairs of resilient rings and seat on said juxtaposed step portions.
  • said flanges of said tread rings have portions which substantially overlie said flanges of said resilient buffer rings.
  • the outer flanges of said roller body means are adjustable for compressively retaining said resilient buffer rings between said inner and outer flanges of said respective pair of flanges of said roller body means.
  • a lower track roller for use with a crawler track of a heavy construction machine comprising:
  • roller body means rotatably mounted on said axle
  • roller body means having inner and outer outwardly extending flanges arranged thereon;
  • a resilient buffer means mounted on said roller body means and having a pair of outwardly extending flanges which contact and are retained by said inner and outer flanges of said roller body means, said resilient buffer means including a pair of identical resilient rings having step portions;
  • each of said resilient rings having a plurality of annular grooves in its outer surface to absorb shock
  • tread ring having a depending annular seating ring which is received between said assembled pair of resilient rings and seats on said juxtaposed step portions;
  • At least one of said flanges of said roller body means being adjustable for compressively retaining said resilient buffer means between said flanges of said roller body means.
  • a lower track roller for use with a crawler track of a heavy construction machine comprising:
  • roller body means rotatably mounted on said axle
  • roller body means having inner and outer outwardly extending flanges arranged thereon;
  • a resilient buffer means mounted on said roller body means and having a pair of outwardly extending flanges which contact and are compressively retained by said inner and outer flanges of said roller body means, said resilient buffer means including an annular channel;
  • tread ring mounted on said resilient buffer means and having a pair of outwardly extending flanges at its ends which engage said flanges of said resilient buffer means, said tread ring including an annular seating ring depending therefrom, said annular seating ring being seated in said annular channel;
  • said resilient buffer means is a resilient ringhaving a plurality of annular grooves at its outer surface to absorb shock.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US00228040A 1971-02-24 1972-02-22 Lower track roller for crawler track Expired - Lifetime US3797895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46009163A JPS5215844B2 (enrdf_load_stackoverflow) 1971-02-24 1971-02-24

Publications (1)

Publication Number Publication Date
US3797895A true US3797895A (en) 1974-03-19

Family

ID=11712931

Family Applications (1)

Application Number Title Priority Date Filing Date
US00228040A Expired - Lifetime US3797895A (en) 1971-02-24 1972-02-22 Lower track roller for crawler track

Country Status (6)

Country Link
US (1) US3797895A (enrdf_load_stackoverflow)
JP (1) JPS5215844B2 (enrdf_load_stackoverflow)
CA (1) CA961899A (enrdf_load_stackoverflow)
FR (1) FR2127630A5 (enrdf_load_stackoverflow)
GB (1) GB1379665A (enrdf_load_stackoverflow)
IT (1) IT947838B (enrdf_load_stackoverflow)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958837A (en) * 1974-02-25 1976-05-25 Kabushiki Kaisha Komatsu Seisakusho Idler
US4890892A (en) * 1988-10-03 1990-01-02 Caterpillar Inc. Track roller assembly
US5040855A (en) * 1990-08-31 1991-08-20 Caterpillar Inc. Isolated rim roller assembly
US5288143A (en) * 1993-01-14 1994-02-22 Caterpillar Inc. Track roller assembly having a replaceable flange
US5302012A (en) * 1993-01-14 1994-04-12 Caterpillar, Inc. Composite tread ring for track roller
US6012784A (en) * 1998-01-30 2000-01-11 Caterpillar Inc. Impact reducing idler wheel for a track-driven machine
US6074023A (en) * 1996-07-24 2000-06-13 Hitachi Construction Machinery Co., Ltd. Guide roller assembly for crawler type vehicles and method for forming guide roller
US6129426A (en) * 1998-02-25 2000-10-10 Tucker Sno-Cat Corporation Tracked vehicle with improved guide wheel assembly
US6280009B1 (en) * 1999-12-03 2001-08-28 Caterpillar Inc. Sound reducing carrier roller
US6669312B2 (en) * 2001-10-25 2003-12-30 Deere & Company Tracked vehicles, and endless tracks and wheels therefore
US6739678B2 (en) * 2002-07-23 2004-05-25 Caterpillar Inc Isolated idler assembly
US20050056468A1 (en) * 2003-09-17 2005-03-17 Tucker Sno-Cat Corporation Tracked vehicle with improved track drive unit
US20050218720A1 (en) * 2004-04-06 2005-10-06 Camoplast Inc. Wheel assembly for a tracked vehicle
US20100007205A1 (en) * 2008-07-14 2010-01-14 Caterpillar Inc. Self-lubricated track roller assembly and machine using same
US20100096195A1 (en) * 2008-10-22 2010-04-22 Caterpillar Inc. Track roller assembly and machine using same
US20100096196A1 (en) * 2008-10-22 2010-04-22 Caterpillar Inc. Track roller assembly and machine using same
US20100133898A1 (en) * 2008-12-02 2010-06-03 Caterpillar Inc. Sound Reduce Segmented Idler For Track-Type Vehicles
US20100141026A1 (en) * 2008-12-10 2010-06-10 Caterpillar Inc. Isolated center tread rim idler
US20120056473A1 (en) * 2009-06-01 2012-03-08 Komatsu Ltd. Roller wheel for track-type travelling vehicle
US20150008729A1 (en) * 2013-01-17 2015-01-08 Komatsu Ltd. Roller device for track-type work vehicle
US20150197119A1 (en) * 2012-07-30 2015-07-16 Construcciones Y Auxiliar de Ferrorocarriles, S.A. Elastic wheel for railway vehicles
US20150274228A1 (en) * 2013-06-17 2015-10-01 Komatsu Ltd. Roller of track-type traveling vehicle
US20160236734A1 (en) * 2013-01-17 2016-08-18 Komatsu Ltd. Roller device for track-type work vehicle, roller shell unit and roller shell

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5325311Y2 (enrdf_load_stackoverflow) * 1973-07-23 1978-06-28
JPS5410656Y2 (enrdf_load_stackoverflow) * 1974-11-06 1979-05-16
JPS51116535U (enrdf_load_stackoverflow) * 1975-03-17 1976-09-21
JPS562627Y2 (enrdf_load_stackoverflow) * 1975-11-10 1981-01-21
US4926208A (en) * 1988-05-09 1990-05-15 Minolta Camera Kabushiki Kaisha Photographic viewfinder assembly
US5785395A (en) * 1996-08-23 1998-07-28 Caterpillar Inc. Cushioned roller for a belted undercarriage
PL2789528T3 (pl) * 2013-04-12 2017-04-28 Joseph Vögele AG Układarka z podwoziem gąsienicowym

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US165587A (en) * 1875-07-13 Improvement in vehicle-wheels
US698110A (en) * 1902-02-27 1902-04-22 Alphonse L Foy Wheel for roller-skates.
US2033862A (en) * 1932-12-19 1936-03-10 Transit Res Corp Resilient wheel
US2830637A (en) * 1954-10-28 1958-04-15 Rand Goetze Corp Resilient wheel
US3147048A (en) * 1959-12-12 1964-09-01 Bofors Ab Track roller for a track-laying vehicle
US3580093A (en) * 1969-03-10 1971-05-25 Nittai Lease Co Ltd Lower roller for endless tread for vehicle
US3689122A (en) * 1970-11-18 1972-09-05 Gen Motors Corp Road wheel for crawler tractor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US165587A (en) * 1875-07-13 Improvement in vehicle-wheels
US698110A (en) * 1902-02-27 1902-04-22 Alphonse L Foy Wheel for roller-skates.
US2033862A (en) * 1932-12-19 1936-03-10 Transit Res Corp Resilient wheel
US2830637A (en) * 1954-10-28 1958-04-15 Rand Goetze Corp Resilient wheel
US3147048A (en) * 1959-12-12 1964-09-01 Bofors Ab Track roller for a track-laying vehicle
US3580093A (en) * 1969-03-10 1971-05-25 Nittai Lease Co Ltd Lower roller for endless tread for vehicle
US3689122A (en) * 1970-11-18 1972-09-05 Gen Motors Corp Road wheel for crawler tractor

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958837A (en) * 1974-02-25 1976-05-25 Kabushiki Kaisha Komatsu Seisakusho Idler
US4890892A (en) * 1988-10-03 1990-01-02 Caterpillar Inc. Track roller assembly
US5040855A (en) * 1990-08-31 1991-08-20 Caterpillar Inc. Isolated rim roller assembly
WO1992004226A1 (en) * 1990-08-31 1992-03-19 Caterpillar Inc. Isolated rim roller assembly
US5288143A (en) * 1993-01-14 1994-02-22 Caterpillar Inc. Track roller assembly having a replaceable flange
US5302012A (en) * 1993-01-14 1994-04-12 Caterpillar, Inc. Composite tread ring for track roller
US6074023A (en) * 1996-07-24 2000-06-13 Hitachi Construction Machinery Co., Ltd. Guide roller assembly for crawler type vehicles and method for forming guide roller
US6012784A (en) * 1998-01-30 2000-01-11 Caterpillar Inc. Impact reducing idler wheel for a track-driven machine
US6129426A (en) * 1998-02-25 2000-10-10 Tucker Sno-Cat Corporation Tracked vehicle with improved guide wheel assembly
US6280009B1 (en) * 1999-12-03 2001-08-28 Caterpillar Inc. Sound reducing carrier roller
US6669312B2 (en) * 2001-10-25 2003-12-30 Deere & Company Tracked vehicles, and endless tracks and wheels therefore
US20040084960A1 (en) * 2001-10-25 2004-05-06 Deere & Company Tracked vehicles, and endless tracks and wheels therefore
US6863357B2 (en) 2001-10-25 2005-03-08 Deere & Company Tracked vehicles, and endless tracks and wheels therefore
US6739678B2 (en) * 2002-07-23 2004-05-25 Caterpillar Inc Isolated idler assembly
US20050056468A1 (en) * 2003-09-17 2005-03-17 Tucker Sno-Cat Corporation Tracked vehicle with improved track drive unit
US6983812B2 (en) 2003-09-17 2006-01-10 Tucker Sno-Cat Corporation Tracked vehicle with improved track drive unit
US20050218720A1 (en) * 2004-04-06 2005-10-06 Camoplast Inc. Wheel assembly for a tracked vehicle
US7252348B2 (en) 2004-04-06 2007-08-07 Camoplast Inc. Wheel assembly for a tracked vehicle
US20100007205A1 (en) * 2008-07-14 2010-01-14 Caterpillar Inc. Self-lubricated track roller assembly and machine using same
US7832815B2 (en) 2008-10-22 2010-11-16 Caterpillar Inc Track roller assembly and machine using same
US20100096196A1 (en) * 2008-10-22 2010-04-22 Caterpillar Inc. Track roller assembly and machine using same
US20100096195A1 (en) * 2008-10-22 2010-04-22 Caterpillar Inc. Track roller assembly and machine using same
US8075068B2 (en) 2008-10-22 2011-12-13 Caterpillar Inc. Track roller assembly and machine using same
US8360535B2 (en) * 2008-12-02 2013-01-29 Caterpillar Inc. Sound reducing segmented idler for track-type vehicles
US20100133898A1 (en) * 2008-12-02 2010-06-03 Caterpillar Inc. Sound Reduce Segmented Idler For Track-Type Vehicles
US7905559B2 (en) * 2008-12-10 2011-03-15 Caterpillar Inc Isolated center tread rim idler wheel
US20100141026A1 (en) * 2008-12-10 2010-06-10 Caterpillar Inc. Isolated center tread rim idler
US20120056473A1 (en) * 2009-06-01 2012-03-08 Komatsu Ltd. Roller wheel for track-type travelling vehicle
AU2013298475B2 (en) * 2012-07-30 2017-07-20 Construcciones Y Auxiliar De Ferrocarriles, S.A. Elastic wheel for railway vehicles
US20150197119A1 (en) * 2012-07-30 2015-07-16 Construcciones Y Auxiliar de Ferrorocarriles, S.A. Elastic wheel for railway vehicles
US10112437B2 (en) * 2012-07-30 2018-10-30 Construcciones Y Auxiliar De Ferrocarriles, S.A. Elastic wheel for railway vehicles
US20160236734A1 (en) * 2013-01-17 2016-08-18 Komatsu Ltd. Roller device for track-type work vehicle, roller shell unit and roller shell
US9555845B2 (en) * 2013-01-17 2017-01-31 Komatsu Ltd. Roller device for track-type work vehicle
US20150008729A1 (en) * 2013-01-17 2015-01-08 Komatsu Ltd. Roller device for track-type work vehicle
US9840291B2 (en) * 2013-01-17 2017-12-12 Komatsu Ltd. Roller device for track-type work vehicle, roller shell unit and roller shell
US20150274228A1 (en) * 2013-06-17 2015-10-01 Komatsu Ltd. Roller of track-type traveling vehicle
US9764785B2 (en) * 2013-06-17 2017-09-19 Komatsu Ltd. Roller of track-type traveling vehicle

Also Published As

Publication number Publication date
CA961899A (en) 1975-01-28
JPS5215844B2 (enrdf_load_stackoverflow) 1977-05-04
FR2127630A5 (enrdf_load_stackoverflow) 1972-10-13
JPS4720836A (enrdf_load_stackoverflow) 1972-10-02
IT947838B (it) 1973-05-30
GB1379665A (en) 1975-01-08

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