EP2248953A1 - Dispositif de remplacement et d'impulsion pour les dents de creusement d'une machine de construction d'ingénierie - Google Patents

Dispositif de remplacement et d'impulsion pour les dents de creusement d'une machine de construction d'ingénierie Download PDF

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Publication number
EP2248953A1
EP2248953A1 EP10158557A EP10158557A EP2248953A1 EP 2248953 A1 EP2248953 A1 EP 2248953A1 EP 10158557 A EP10158557 A EP 10158557A EP 10158557 A EP10158557 A EP 10158557A EP 2248953 A1 EP2248953 A1 EP 2248953A1
Authority
EP
European Patent Office
Prior art keywords
bucket
hole
bucket tooth
adapter
guiding angle
Prior art date
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.)
Withdrawn
Application number
EP10158557A
Other languages
German (de)
English (en)
Inventor
Jung-Ching Ko
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2248953A1 publication Critical patent/EP2248953A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E02F9/2841—Retaining means, e.g. pins resilient
    • 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
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2825—Mountings therefor using adapters
    • 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
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2891—Tools for assembling or disassembling

Definitions

  • the invention relates to a replacement and urging device for the bucket teeth of an engineering construction machine and, in particular, to a replacement and urging device for the bucket teeth of an engineering construction machine that prevents the bucket teeth from hitting the base repeatedly.
  • FIG. 8 shows a conventional excavator bucket tooth structure.
  • a bucket is formed with several equally spaced bucket teeth 9.
  • Each of the bucket teeth 9 includes an adapter 90 and a bucket tooth 91.
  • the adapter 90 has a horizontal first through hole 901.
  • the bucket tooth 91 is mounted on the adapter 90.
  • Both sides of the bucket tooth have respectively a second through hole 911 corresponding to the first through hole 901 of the adapter 90.
  • a hammer 93 hits a pin 92 from the second through hole 911 on one side of the bucket tooth 91 into the first through hole 901.
  • a C-shaped buckle 902 positions the pin 92 in the first through hole 901. Both ends of the pin 92 protrude from the second through holes 911, restricting and positioning the bucket tooth 91 on the adapter 90.
  • FIGS. 9 and 10 Please refer to FIGS. 9 and 10 .
  • the adapter 90 and the bucket tooth 91 are assembled, there is still a gap A between them.
  • the adapter 90 if there is a gap between the adapter 90 and the bucket tooth 91, it provides a buffer space for the bucket tooth 91 to hit back the adapter 90, which is likely to deform the colliding parts of them. Besides, the hitting strength is larger for a larger gap, causing more damages to the adapter 90 and the bucket tooth 91. Moreover, the second through holes 911 of the bucket tooth 91 erode with the pin 92 to become larger. As shown in FIG. 20, when the second through holes 911 of the bucket tooth 91 become larger and the gap A is larger than the gap B because of the constant collisions between the adapter 90 and the bucket tooth 91, the bucket tooth 91 urges against the pin 92, but not the adapter 90, during a digging process.
  • the pin 92 is constantly hit by the bucket tooth 91 during the digging process.
  • the pin 92 thus often breaks so that the bucket tooth 91 falls off.
  • the bucket tooth 91 may even hurt somebody if it falls from a high place.
  • An objective of the invention is to solve the above-mentioned problems by providing a replacement and urging device for the bucket teeth of an engineering construction machine whose adapter and bucket teeth do not develop a shifting gap during uses. This prevents the pins from being hit by the tail and breaking.
  • the invention includes:
  • an adapter which has a fixing part fixed on a bucket, an inserting part protruding from the end of the fixing part that is far from the bucket, a first through hole being formed between its two sides and horizontally through the fixing part, a limiting part being disposed at the center of the first through hole;
  • a bucket tooth which has a slot corresponding to the inserting part on its one end, and has a second through hole of both sides, respectively, each of the second through holes being disposed opposite to each other and in communications with the slot, the bucket tooth being mounted on the inserting part of the adapter by the slot;
  • an engaging unit which is disposed between the first through hole of the adapter and the second through holes of the bucket tooth and slides between them for the bucket tooth to be mounted and positioned on the adapter.
  • FIG. 1 is a three-dimensional schematic view of the disclosed bucket teeth
  • FIG. 2 is a three-dimensional exploded view of the invention
  • FIG. 3 shows the initial positioning of the disclosed bucket tooth
  • FIG. 4 illustrates the collision of the disclosed bucket tooth during a digging process
  • FIG. 5 is a schematic view of adjusting the stopping posts
  • FIG. 6 is a schematic view of positioning the disclosed bucket tooth after the adjustment
  • FIG. 7 is a cross-sectional view of the second embodiment of the invention.
  • FIG. 8 is a three-dimensional exploded view of a conventional bucket tooth
  • FIG. 9 is a cross-sectional side view of the conventional bucket tooth
  • FIG. 10 is a schematic view showing the gap between the base and the tail of the conventional bucket tooth.
  • FIG. 11 shows that a pin in the conventional bucket tooth breaks due to collisions.
  • the first embodiment is a replacement and urging device for the bucket teeth of an engineering construction machine. It includes: an adapter 1, a bucket tooth 5, and an engaging unit 7.
  • the adapter 1 has a fixing part 11. As shown in FIGS. 1 and 2 , the base 1 uses its fixing part 11 to hold onto the front edge of a bucket 2. The fixing part 11 is further soldered onto the bucket 2.
  • An inserting part 12 protrudes from one end of the fixing part 11 that is far from the bucket 2.
  • a first through hole 121 is formed between its two sides, horizontally through the fixing part 11.
  • a limiting part 122 is provided at the center of the first through hole 121.
  • One end of the bucket tooth 5 has a slot 51 corresponding to the inserting part 12. Both sides of the bucket tooth 5 have a second through hole 52, respectively. The second through holes 52 are disposed opposite to each other and in communications with the slot 51.
  • the bucket tooth 5 is mounted on the inserting part 12 of the base 1 by the slot 51.
  • the engaging unit 7 is disposed between the first through hole 121 of the base 1 and the second through holes 52 of the bucket tooth 5 and can slide between them. It allows the bucket tooth 5 to mount and position on the adapter 1.
  • the engaging unit 7 includes two stopping posts 3 and an elastic element 4.
  • the stopping posts 3 are inserted into both ends of the first through hole 121 of the inserting part 12, respectively. One end of each of the stopping posts 3 protrudes from the first through hole 121 and correspondingly into the second through hole 52.
  • Each of the stopping posts 3 has a groove 32 on one end of inside the first through hole 121.
  • Each of the grooves 32 is disposed to face each other.
  • An elastic element 4 is interposed between the two grooves 32. Both ends of the elastic element 4 are inside the corresponding grooves 32 to urge against the stopping posts 3.
  • the elastic element 4 in this embodiment is an urging spring.
  • the elastic element 4A can be replaced by urethane with the same urging effect.
  • each of the stopping posts 3 retracts into the first through hole 121, the limiting part 122 inside the first through hole stops so that the two stopping posts slide the same distance therein.
  • the purpose of this is to average the urging force of the elastic element 4 on the two stopping posts 3.
  • each of the stopping posts 3 is mounted with at least one stopping ring 31 to prevent alien objects from entering the grooves 32 of the stopping ports 3 via the gap between the stopping posts 3 and the inserting part 12.
  • a holding tool (not shown) can be used to press the two stopping posts 3 into the first through hole 121 of the inserting part 12 of the adapter 1.
  • the slot 51 of the bucket tooth 5 is mounted on the inserting part 12.
  • the part of the stopping posts 3 next to the inner edge of the slot 51 of the bucket tooth 5 first urges against the inner front edge of the slot 51 of the bucket tooth 5.
  • the slot 51 of the bucket tooth 5 is directly mounted onto the inserting part 12 of the adapter 1.
  • the two stopping posts 3 correspond to the second through holes 52 on both sides of the bucket tooth 5.
  • the elastic urging force of the elastic clement 4 pushes and goes into the corresponding second through holes 52, thereby positioning the bucket tooth 5 on the adapter 1.
  • the bucket tooth 5 has an inner guiding angle 55 on the side that the second through holes 52 open towards the slot 51.
  • the end of each of the stopping posts 3 protruding from the first through hole 121 has an outer guiding angle 33 towards the fixing part 11.
  • the outer guiding angle 33 attaches the bucket tooth 5 to the inner guiding angle 55 of the second through hole 52.
  • the depth of the outer guiding angle 33 is smaller than the inner guiding angle 55. This keeps a gap so that the adapter 1 and the bucket tooth 5 do not have collisions.
  • FIG. 3 shows that the outer guiding angle 33 of the two stopping posts 33 initially urges against the inner guiding angle 55 of the bucket tooth 5 when the bucket tooth 5 is mounted on the adapter 1. As shown in the drawing, the adapter 1 and the bucket tooth 5 are urged by the two stopping posts 3. Therefore, there is no sliding gap.
  • the two stopping posts 3 push outwards.
  • the inner guiding angle 33 attaches to the outer guiding angle 53 to stop the bucket tooth 5. Therefore, there is no sliding gap between the bucket tooth 5 and the adapter 1. There is then no buffer space for the adapter 1 and the bucket tooth 5 to hit against each other. This prevents them from damages due to collisions.
  • the bucket tooth 5 does not hit the stopping posts 3 and break them. Therefore, the disclosed bucket teeth have a very safe structure.
  • Each of the stopping posts 4 protrudes from one end of the first through hole 121.
  • the other side of the outer guiding angle 33 has another corresponding outer guiding angle 33.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
EP10158557A 2009-04-14 2009-04-14 Dispositif de remplacement et d'impulsion pour les dents de creusement d'une machine de construction d'ingénierie Withdrawn EP2248953A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09005321A EP2241683A1 (fr) 2009-04-14 2009-04-14 Dispositif de remplacement et d'impulsion pour les dents de creusement d'une machine de construction d'ingénierie

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP09005321.6 Division 2009-04-14

Publications (1)

Publication Number Publication Date
EP2248953A1 true EP2248953A1 (fr) 2010-11-10

Family

ID=40718558

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09005321A Withdrawn EP2241683A1 (fr) 2009-04-14 2009-04-14 Dispositif de remplacement et d'impulsion pour les dents de creusement d'une machine de construction d'ingénierie
EP10158557A Withdrawn EP2248953A1 (fr) 2009-04-14 2009-04-14 Dispositif de remplacement et d'impulsion pour les dents de creusement d'une machine de construction d'ingénierie

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09005321A Withdrawn EP2241683A1 (fr) 2009-04-14 2009-04-14 Dispositif de remplacement et d'impulsion pour les dents de creusement d'une machine de construction d'ingénierie

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103890283B (zh) * 2011-10-20 2016-04-13 特里尼蒂工业有限公司 用于挖掘设备并具有稀土材料的齿组件
US9976287B2 (en) 2014-12-03 2018-05-22 Caterpillar Inc. Ground engaging tool
CN107002392A (zh) * 2014-12-03 2017-08-01 卡特彼勒公司 地面接合工具
WO2016089669A1 (fr) * 2014-12-03 2016-06-09 Caterpillar Inc. Outil d'attaque du sol
TR201901015T4 (tr) 2015-02-23 2019-02-21 Metalogenia Research & Tech Sl Bir aşınma veya koruma elemanını bir toprak kaydırma makinesinenin bir küreğine bağlamaya yönelik cihaz ve ilgili bağlantı yöntemi ve aşınma veya koruma sistemi.
CN108915001B (zh) * 2018-07-09 2021-10-15 成都工合科技有限公司 一种装载机前缘锁紧机构及装载机前缘

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987838A (en) * 1957-08-05 1961-06-13 Elton Stratton Excavating tooth
US3325926A (en) * 1964-03-09 1967-06-20 Mid Continent Steel Casting Co Digger tooth and assembly for an excavating apparatus
US4087928A (en) * 1977-04-07 1978-05-09 International Harvester Company Multi-sectional resilient retainer for excavating tooth
US4848013A (en) * 1988-10-24 1989-07-18 Caterpillar Inc. Two pin fastening assembly with interconnecting and retaining means
US20080000114A1 (en) * 2006-06-28 2008-01-03 Amsco Cast Products (Canada) Inc. Tooth and adaptor assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6439796B1 (en) * 2000-08-02 2002-08-27 Gh Hensley Industries, Inc. Connector pin apparatus and associated methods
CA2597277C (fr) * 2007-08-14 2011-11-08 Neil Douglas Bentley Goupille de retenue et dent pour ensemble a dent et a adaptateur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987838A (en) * 1957-08-05 1961-06-13 Elton Stratton Excavating tooth
US3325926A (en) * 1964-03-09 1967-06-20 Mid Continent Steel Casting Co Digger tooth and assembly for an excavating apparatus
US4087928A (en) * 1977-04-07 1978-05-09 International Harvester Company Multi-sectional resilient retainer for excavating tooth
US4848013A (en) * 1988-10-24 1989-07-18 Caterpillar Inc. Two pin fastening assembly with interconnecting and retaining means
US20080000114A1 (en) * 2006-06-28 2008-01-03 Amsco Cast Products (Canada) Inc. Tooth and adaptor assembly

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Publication number Publication date
EP2241683A1 (fr) 2010-10-20

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