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WO2021246814A1 - Adaptateur de dent - Google Patents

Adaptateur de dent Download PDF

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Publication number
WO2021246814A1
WO2021246814A1 PCT/KR2021/006974 KR2021006974W WO2021246814A1 WO 2021246814 A1 WO2021246814 A1 WO 2021246814A1 KR 2021006974 W KR2021006974 W KR 2021006974W WO 2021246814 A1 WO2021246814 A1 WO 2021246814A1
Authority
WO
WIPO (PCT)
Prior art keywords
tooth
tooth adapter
adapter
nose
coupling
Prior art date
Application number
PCT/KR2021/006974
Other languages
English (en)
Korean (ko)
Inventor
김정엽
박해지
임현준
윤희문
이청래
Original Assignee
두산인프라코어 주식회사
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
Priority claimed from KR1020210070980A external-priority patent/KR20210151696A/ko
Application filed by 두산인프라코어 주식회사 filed Critical 두산인프라코어 주식회사
Publication of WO2021246814A1 publication Critical patent/WO2021246814A1/fr

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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

Definitions

  • the present invention relates to a tooth adapter, and more particularly, to a tooth adapter used in a construction machine.
  • an excavator which is a type of construction machine, is a civil engineering machine used to mine soil or rocks.
  • a bucket is installed in the front part of the excavator body for mining and temporarily storing soil or rocks. Since the bucket is in preferential contact with the excavation target such as soil or rock, one or more tooth adapters are connected to the end through welding or bolts to strengthen the excavation work and prevent direct wear, and the tooth point, which is a wear member, is separate from the tooth adapter. It is fastened through the holding device or holding system of
  • the tooth adapter has a protruding portion (nose) to support the tooth point, and the tooth point is fitted while covering the protruding portion (nose) of the tooth adapter.
  • the holding device is fastened in a state of being inserted, and through this, the tooth point and the tooth adapter are maintained in a fixed state.
  • the present invention has been devised to solve the above problems, and an object of the present invention is to provide a tooth adapter having reduced stress generated between the tooth point and the tooth adapter during operation.
  • a tooth adapter is a tooth adapter for coupling a tooth point to a working device of a construction machine, wherein a coupling part coupled to the working device and a front end of the coupling part are formed to engage the tooth point an upper surface portion including a nose portion, wherein the nose portion includes an inclined portion in which at least a partial region is inclined with respect to a front-rear axis when viewed from the side; a lower surface in which at least a partial area is formed parallel to the front-rear axis; a side portion including one side portion and the other side portion connecting the upper surface portion and the lower surface portion; and a front part formed at the front end of the nose part.
  • the upper surface portion and the lower surface portion may be formed asymmetrically with respect to the front-rear axis.
  • the upper surface portion may include a parallel portion disposed in front of the inclined portion and having at least a partial region parallel to the front-rear axis.
  • At least one side of the one side part and the other side part may be provided with a coupling groove concave inwardly provided to have a predetermined diameter to be fastened to the tooth point.
  • the coupling groove portion may be formed to have a smaller diameter toward the inside.
  • a first additional surface for increasing a surface area may be formed on at least one of the one side portion and the other side portion.
  • the first additional surface may be concave inwardly in the width direction.
  • the first additional surface may be convex outwardly in the width direction.
  • the upper edge of the front part may be formed in an arch shape in which the upper middle part is convex upward when viewed from the front.
  • the coupling portion the upper leg coupled to the upper surface of the front end of the working machine; a lower leg coupled to a lower surface of the front end of the working machine; and a seating surface on which a rear end surface of the tooth point is seated when combined with the tooth point.
  • a stepped portion is formed on one side in the vertical direction of the seating surface, and the stepped portion may be formed to be inclined downward toward the front when viewed from the side.
  • the left-right width L3 of the upper edge of the front part may be smaller than the left-right width L2 of the lower edge of the front part.
  • the left-right width L2 of the lower edge of the front part may be formed in a range of 0.4 times to 0.7 times the front-back direction length L1 of the nose part.
  • the tooth adapter according to various embodiments of the present invention can minimize the stress generated by the working load by increasing the contact surface with the tooth point and dispersing the load acting on the contact surface of the tooth adapter and the tooth point during operation.
  • FIG. 1 is a view conceptually illustrating a state in which a tooth adapter is coupled to a tooth point according to various embodiments of the present invention
  • Figure 2 is a view showing a state in which the tooth adapter according to various embodiments of the present invention is coupled to the bucket.
  • FIG. 3 is a perspective view of a tooth adapter according to various embodiments of the present invention.
  • FIG. 4 is a side view of a tooth adapter according to various embodiments of the present invention as viewed from the side;
  • FIG. 5 is a front view of a tooth adapter according to various embodiments of the present invention as viewed from the front;
  • FIG. 6 is a view showing control factors in the shape of a tooth adapter according to various embodiments of the present invention.
  • the construction machine 1 described in the present invention may include an excavator, a wheel loader, a dozer, and the like.
  • an excavator a wheel loader
  • a dozer a dozer
  • the tooth adapter 100 of the present invention is not limited to being installed in the bucket 10 of the excavator, and it is obvious that it can be applied to a wheel loader, a dozer, and the like.
  • the tooth adapter 100 proposed in the present invention is for coupling the tooth point 500 to a working device such as the bucket 10 of the excavator.
  • the tooth point 500 is mounted on the tip of the bucket 10 of the excavator through the tooth adapter 100 and can be used to improve the excavation performance for an excavation target such as soil or rock.
  • the tooth point 500 Since the tooth point 500 is in direct contact with the excavation target, it is a consumable that is inevitably worn in proportion to the excavation work time. Accordingly, the tooth point 500 is replaced after use for a certain period of time, and the tooth point 500 is detachably coupled to the tooth adapter 100 for replacement. Since the tooth point 500 is detachably coupled to the tooth adapter 100 in various ways, there is a gap between the tooth point 500 and the contact surface of the tooth adapter 100 during operation.
  • a considerable load is also applied to the nose portion 110 of the adapter 100 , and accordingly, abrasion may proceed on the surface of the nose portion 110 .
  • an object of the present invention is to provide a tooth adapter 100 having an improved service life by minimizing the stress generated in the nose portion 110 due to a load caused by work.
  • FIG. 1 is a diagram conceptually illustrating a state in which a tooth adapter according to various embodiments of the present invention is coupled to a tooth point
  • FIG. 2 is a view illustrating a state in which a tooth adapter according to various embodiments of the present invention is coupled to a bucket
  • 3 is a perspective view of a tooth adapter according to various embodiments of the present invention
  • FIG. 4 is a side view of a tooth adapter according to various embodiments of the present invention
  • FIG. 5 is a view of the tooth adapter according to various embodiments of the present invention It is a front view of the tooth adapter as viewed from the front
  • FIG. 6 is a view showing control factors in the shape of the tooth adapter according to various embodiments of the present invention.
  • the direction toward the ground will be described as 'downward' or 'downward', and the opposite direction is referred to as 'upward' Alternatively, it may be described as 'upper side'.
  • the direction in which the side plates 15 of the bucket 10 face each other may be described laterally, or it may be described in the left and right directions.
  • the direction toward the bucket 10 may be described as the rear, and the opposite direction may be described as the front.
  • the tooth adapter 100 according to various embodiments of the present invention is provided to couple the tooth point 500 to the bucket 10 of the excavator, the coupling part 180 and the nose part (110) may be included.
  • the nose portion 110 is a portion that is received and coupled to the inside of the opening of the tooth point 500 when combined with the tooth point 500 , and includes a front portion 111 , an upper surface portion 113 , a lower surface portion 117 , and a side portion. (115).
  • the front portion 111 is a surface forming the front end of the nose portion 110, and may be provided in a planar shape substantially perpendicular to the front-rear axis CL as shown in FIG. 4 .
  • An upper surface portion 113 , a side portion 115 , and a lower surface portion 117 may be formed to extend rearwardly from each corner of the front portion 111 .
  • the front portion 111 may be generally formed in a rectangular shape having a width greater in the left and right directions than in the vertical direction.
  • the left-right width L3 of the upper edge 111a of the front part 111 may be formed to be smaller than the left-right width L2 of the lower edge 111b, so that when viewed from the front, it is generally It may be formed in a trapezoidal shape with a predetermined curvature applied to the upper side.
  • the upper edge 111a of the front part 111 may be formed in an arc shape with a central portion convex upward when viewed from the front. In the present invention, due to the shape of the trapezoidal front part 111 to which the arch shape is applied to the upper side, the front end surface of the socket of the tooth point 500 can be in stable contact.
  • the upper edge 111a of the front part 111 has a predetermined curvature and is formed in an arc shape
  • the upper surface part 113 extending rearward from the upper edge 111a of the front part 111 also has a curvature in the left and right directions. It can be formed to have a , and through this, it is possible to disperse the stress generated in the upper surface portion 113 .
  • the stress acting on the rear upper surface part 113 of the nose part 110 may decrease, but it is too small.
  • the contact area of the tooth point 500 with the front end surface of the socket may decrease, so that contact stability may be reduced, and the stress caused by the side load of the front upper surface portion 113 of the nose portion 110 may increase.
  • the left-right width L2 of the lower edge 111b of the front part 111 of the nose part 110 is 0.40 to 0.70 times the front-back direction length L1 of the nose part 110. It can be formed to be More preferably, it may be formed to be 0.5 to 0.6 times.
  • the upper surface part 113 and the lower surface part 117 of the nose part 110 proposed by the present invention may be formed asymmetrically with respect to the front-rear axis CL as shown in FIG. 3 .
  • the upper surface part 113 may refer to the upper surface of the nose part 110 formed above the front-rear axis CL as shown in FIG. 4 .
  • the upper surface portion 113 may be described as including a parallel portion 113a and an inclined portion 113b.
  • the parallel portion 113a is an area adjacent to the front portion 111 of the upper surface portion 113 , and at least some areas may be formed parallel to the front-rear axis CL.
  • the parallel portion 113a may be disposed in front of the inclined portion 113b.
  • the support point of the force against the vertical load applied from the upper side can be stably formed in front of the nose portion 110 as much as possible.
  • the inclined portion 113b is a region disposed behind the above-described parallel portion 113a among the upper surface portion 113 , and at least some regions may be formed to be inclined with respect to the front-rear axis CL.
  • the inclined portion 113b may be inclined upward toward the rear.
  • the inclined portion 113b may be curved to protrude upward with a predetermined curvature when viewed from the side.
  • the contact area of the tooth point 500 with the inner circumferential surface of the socket can be increased, so that the load applied by the operation can be distributed.
  • the upper surface part 113 is formed to extend backward from the arch shape of the front part 111 , and to be curved such that the central part protrudes upward when viewed from the front, like the shape of the upper corner of the front part 111 . can Accordingly, it is possible to further increase the contact area of the tooth point 500 with the inner circumferential surface of the socket.
  • the contact area with the tooth point 500 is increased to stabilize the tooth point 500 when working with the stress dispersing effect.
  • the lower surface portion 117 may refer to a lower surface of the nose portion 110 formed below the front-rear axis CL as shown in FIG. 1 .
  • at least a partial region of the lower surface portion 117 may be formed parallel to the front-rear axis CL. Accordingly, the upper surface portion 113 and the lower surface portion 117 may be provided in an asymmetric shape with respect to the front axis.
  • the lower surface portion 117 may be formed as a flat surface. Through this flat shape, a stable surface contact is formed in a large area by making the point of support of the force to be located in front of the nose portion 110 as much as possible with respect to the vertical load applied from the lower side. make it possible. if you look at the cross-section, the upper surface is curved, but the lower surface is asymmetrical with a straight line applied, which prevents the tooth point and the tooth adapter from being twisted during work in terms of geometry, improving fastening stability.
  • the side part 115 may be formed to extend rearwardly from the front part 111 between the upper surface part 113 and the lower surface part 117 .
  • the side part 115 may include one side part 115a forming one side of the nose part 110 in the left and right direction, and the other side part 115b forming the other side opposite thereto.
  • the left-right distance between the one side part 115a and the other side part 115b may be formed to be narrow at the top and wider toward the bottom.
  • the front part 111 is formed in a generally trapezoidal shape in which the left-right spacing of the upper edge is smaller than the left-right spacing of the lower edge, the side part 115 extending from the front part 111 is naturally curved. can be formed. Under the condition that a vertical load or a lateral load is applied due to this bending, the contact area between the socket of the tooth point 500 and both side parts 115 of the nose part 110 can be maximized, so that the load can be distributed.
  • both side parts 115 are formed in a shape that diverges in a direction away from each other from the front to the rear, the area of the both side parts 115 becomes wider, and the tooth point 500 can be stably supported during operation. be able to
  • At least one side of the one side part 115a and the other side part 115b has a coupling groove 140 concave inwardly provided to have a predetermined diameter in order to be fastened with the tooth point 500.
  • the coupling groove 140 may have a circular cross-section, and the diameter of the coupling groove 140 may be formed to decrease toward the inside.
  • a support device 400 having a corresponding shape is inserted into the coupling groove 140 to be coupled to the tooth point 500 in various ways.
  • the defect groove portion may be disposed close to the seating surface 185 to be described later in the side portion 115 .
  • the coupling groove 140 is preferably formed at a position that is 0.60 to 0.80 times the length L in the front-rear direction of the lower surface 117 of the nose portion 110 from the front portion 111 .
  • a first additional surface 150 for increasing a surface area may be formed on at least one of the one side portion 115a and the other side portion 115b.
  • the first additional surface 150 may be formed to have a different depth in the width direction from other regions of the side portion 115 , thereby increasing the surface area of the side portion 115 .
  • the first additional surface 150 may be provided in various shapes.
  • the first additional surface 150 may be convex outwardly in the width direction.
  • the first additional surface 150 may be concave inwardly in the width direction.
  • the first additional surface 150 may be formed to extend long in the front-rear direction, and may be formed to communicate with the above-described coupling groove 140 .
  • the tooth adapter 100 may include a coupling part 180 for coupling with the front end of the bucket 10 .
  • the coupling part 180 may be formed at the rear end of the above-described nose part 110 .
  • the coupling unit 180 may include an upper leg 181 coupled to the upper surface of the front end of the bucket 10 , and a lower leg 182 coupled to the lower surface of the front end of the bucket 10 .
  • the upper leg 181 and the lower leg 182 may be formed to extend rearwardly from the rear end of the nose portion 110 , respectively.
  • an imaginary axis extending in a direction parallel to the extending direction of the lower leg 182 has been described as the aforementioned front-rear axis CL.
  • the coupling unit 180 may include a seating surface 185 on which the rear end surface of the tooth point 500 is seated when coupled to the tooth point 500 .
  • a stepped portion 190 may be formed on one side in the vertical direction of the seating surface 185 .
  • the stepped portion 190 may function as a second additional surface that increases the contact area when combined with the tooth point 500 .
  • the stepped portion 190 may be formed to be inclined downward toward the front when viewed from the side, but is not limited thereto, and provided in any shape that can increase the contact area with the rear end surface of the tooth point 500 it could be
  • the tooth point 500 may be detachably coupled to the front end of the bucket 10 through the tooth adapter 100 described above.
  • the tooth point 500 may be provided in various shapes to perform an efficient operation.
  • a socket formed concavely in a shape corresponding to the shape of the above-described nose part 110 may be provided at the rear end of the tooth point 500, and both are coupled in a state in which the nose part 110 is accommodated inside the socket.
  • the support device 400 may be coupled while being inserted into the coupling groove portion 140 formed in the side portion 115 of the nose portion 110, but is not limited thereto, and the tooth point 500 and the tooth adapter In order to bind (100), it may be combined by various bonding methods known to those of ordinary skill in the art.
  • the upper surface portion 113 and the lower surface portion 117 of the nose portion 110 are formed in an asymmetric shape, and the upper surface portion 113 is divided into a parallel portion 113a and an inclined portion 113b to reduce the load. It can be made so that the internal stress is dispersed.

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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)

Abstract

Selon divers modes de réalisation, la présente invention concerne un adaptateur de dent destiné à accoupler une pointe de dent à un dispositif de travail d'un engin de chantier qui comprend : une partie de couplage couplée au dispositif de travail ; et une partie pointe formée au niveau de l'extrémité avant de la partie de couplage pour être couplée à la pointe de dent, la partie pointe pouvant comprendre : une partie de surface supérieure comprenant une partie inclinée dont au moins une région partielle est inclinée par rapport à l'axe longitudinal lorsqu'elle est vue depuis le côté ; une partie de surface inférieure dont au moins une région partielle est formée en parallèle à l'axe longitudinal ; des parties de surface latérale comprenant une partie de surface latérale d'un côté et une partie de surface de l'autre côté qui relient la partie de surface supérieure et la partie de surface inférieure ; et une partie de surface avant formée au niveau de l'extrémité avant de la partie pointe.
PCT/KR2021/006974 2020-06-05 2021-06-03 Adaptateur de dent WO2021246814A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20200068173 2020-06-05
KR10-2020-0068173 2020-06-05
KR10-2021-0070980 2021-06-01
KR1020210070980A KR20210151696A (ko) 2020-06-05 2021-06-01 투스 어댑터

Publications (1)

Publication Number Publication Date
WO2021246814A1 true WO2021246814A1 (fr) 2021-12-09

Family

ID=78830443

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/006974 WO2021246814A1 (fr) 2020-06-05 2021-06-03 Adaptateur de dent

Country Status (1)

Country Link
WO (1) WO2021246814A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002180505A (ja) * 1995-12-11 2002-06-26 Esco Corp 掘削用歯
US20040172866A1 (en) * 1998-06-08 2004-09-09 Metalogenia, S.A. Device for the coupling of excavator teet
KR100590781B1 (ko) * 1998-07-03 2006-06-19 메탈로제니아 파텐테스, 에스.엘. 흙 및 돌과 같은 물질을 이동시키는 기계에 연결되는 치캐리어
US20180087245A1 (en) * 2006-03-30 2018-03-29 Esco Corporation Wear assembly for use on earth working equipment
US20180266085A1 (en) * 2011-07-14 2018-09-20 Esco Corporation Wear assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002180505A (ja) * 1995-12-11 2002-06-26 Esco Corp 掘削用歯
US20040172866A1 (en) * 1998-06-08 2004-09-09 Metalogenia, S.A. Device for the coupling of excavator teet
KR100590781B1 (ko) * 1998-07-03 2006-06-19 메탈로제니아 파텐테스, 에스.엘. 흙 및 돌과 같은 물질을 이동시키는 기계에 연결되는 치캐리어
US20180087245A1 (en) * 2006-03-30 2018-03-29 Esco Corporation Wear assembly for use on earth working equipment
US20180266085A1 (en) * 2011-07-14 2018-09-20 Esco Corporation Wear assembly

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