CN101768992B - Excavating tooth component, tooth holder and bucket teeth - Google Patents

Excavating tooth component, tooth holder and bucket teeth Download PDF

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Publication number
CN101768992B
CN101768992B CN2008102050122A CN200810205012A CN101768992B CN 101768992 B CN101768992 B CN 101768992B CN 2008102050122 A CN2008102050122 A CN 2008102050122A CN 200810205012 A CN200810205012 A CN 200810205012A CN 101768992 B CN101768992 B CN 101768992B
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fitting face
toothholder
face
bucket tooth
fitting
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CN101768992A (en
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缪跃辉
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ZHEDONG PRECISION CAST CO Ltd NINGBO
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ZHEDONG PRECISION CAST CO Ltd NINGBO
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Abstract

The invention discloses an excavating teeth component, a tooth holder and bucket teeth. The excavating tooth component comprises the tooth holder, the bucket teeth, and a locking piece. The rear part of the bucket teeth is provided with a cavity and the front end of the tooth holder is provided with a tooth holder head. The cavity of the bucket teeth and the tooth holder head are firmly combined together through the locking piece. The upper part of the tooth holder head is provided with a first transition connecting surface, a first matching surface and a third matching surface, and the lower part of the tooth holder head is provided with a second transition connecting surface, a second matching surface and a fourth matching surface. The first matching surface and the third matching surface are connected through the first transition connecting surface, and the second matching surface and the fourth matching surface are connected through the second transition connecting surface. The first matching surface and the second matching surface form a predetermined angle with a central axis of the tooth holder head respectively, and the third matching surface and the fourth matching surface are parallel to the central axis of the tooth holder head respectively. An inner surface of the cavity of the bucket teeth is provided with a plurality of matching surfaces which are contacted with the matching surfaces.

Description

Excavating tooth assembly, toothholder and bucket tooth
Technical field
The present invention relates to a kind of parts that play the excavation effect in engineering machinery or the mining machinery that belong to, relate in particular to the fixed connection structure of a kind of bucket tooth and toothholder.
Background technology
The operation that the excavator in engineering machinery, mining machinery field, loader, Mars Miner excavate or load by scraper bowl, scraper bowl play cutting material and loaded material.Scraper bowl bears huge wearing and tearing, the words that do not add any safeguard measure as its front end will be very fast by blunt even breakage, and it is required efficient operation in a long time, so can a kind of excavating tooth assembly or wearing plate be installed at the scraper bowl working edge in most cases, its purpose: the one, protection scraper bowl working end is not by too early, mistake quick-wearing; The 2nd, the sharpness of increase scraper bowl front end, cutting, the delivered payload capability of enhancing scraper bowl; The 3rd, by changing a part or the wearing plate of the excavating tooth assembly of wear out failure, make the scraper bowl working end keep sharp, state efficiently, reduce use cost simultaneously.
Usually excavating tooth assembly is designed to several parts, as bucket tooth, toothholder and locking piece, the bucket tooth rear portion has cavity, the toothholder front end has one outstanding (toothholder head) can be contained in the cavity of bucket tooth, make bucket tooth cavity and firm the combining of toothholder head by locking piece, when needs are changed, the bucket tooth cavity is separated with the toothholder head by removing locking piece, reach the wherein purpose of a part of replacing, common this locking piece is designed to reusable member repeatedly.
The working environment very severe of scraper bowl, the excavating tooth assembly of its front end will be born bucket and be imposed on its huge and changeable power, and the direction of these power is multidimensional.Therefore, bucket tooth must be fixed on the toothholder reliably, to bear axial load, vertical load, lateral load, impact force, twisting resistance, vibration force etc.
Because torsional forces and impact force that excavating tooth assembly is caused by axial load, vertical load, lateral load mainly in operation process, the mutual syndeton of bucket tooth and toothholder is the emphasis of designer innovation in the industry, and this syndeton is fit structure usually again.Fit structure higher stable degree, enough combined strengths, property easy to assemble are the targets pursued of designer in the industry.
As " snap-system of bucket tooth " Chinese patent application of application number CN01816786.1, there is overhanging auricle the bucket tooth both sides, can be contained in to be arranged in the groove that is complementary relationship on the toothholder with this auricle, and auricle has certain incline structure.The advantage of this incline structure has provided than the big lever arm, when having kept the higher stable degree, has reduced the risk that auricle separates fracture to a certain extent.The shortcoming of this incline structure is the destructive power adverse effect of failing to avoid perpendicular to the auricle incline structure, and the situation of auricle fracture can not be avoided fully, in case auricle fracture bucket tooth promptly can separate with toothholder and lose.
Application number is CN200510097064.9's " wear-resistant components and wear member " patent, has described a kind of structure: come the suffered external force of balance bucket tooth by the slide rail that is arranged on the sidewall of both sides, reach stable purpose.Advantage is to effectively reduce bucket tooth to deviate from power, significantly reduced the shearing force that bucket tooth imposes on pin.Shortcoming is that two wood side-guide stress surface directions are opposite each other, can not be simultaneously stressed, and the torque resistant ability is general, and the circulation of monolateral slide rail is stressed easily to be formed stress at the slide rail root and concentrates and original structure is damaged.
Application number is CN200380109779.0's " the consumable accessory system of removable installation that is used for the consumable accessory of cultivation machinery instrument " patent, announced a kind of fit structure, by being set, the fitting face that is different angles with the longitudinal axis comes active force on the balance bucket tooth multi-dimensional direction, advantage is: both sides are provided with the shaggy block that stops bucket tooth to advance, disappear except when the component that the bucket tooth cavity produces when advancing on the toothholder inclined-plane perpendicular to the longitudinal axis, in addition the fitting face that is the different angles setting with the longitudinal axis has also reduced bucket tooth and has deviate from power, the suffered shearing force of pin is greatly descended, in other words promptly reduce the destructive power of bucket tooth internal construction, prolonged the application life of pin.Shortcoming is the torque capability deficiency that produces in the antagonism bucket tooth mining process, and stress can concentrate near bucket tooth inner chamber fillet or the pin-and-hole and produce and destroy.
Application number is that the patent " fixture construction of the tooth of the scraper bowl of excavation usefulness " of CN02126120.2 is announced a kind of pin fixture construction, by a steel spring sheet clip in pin one end, be compressed in the toothholder hole, the frictional force that relies on compression reaction force to produce is fixed in certain position in the toothholder sky.Advantage is a convenient fixing, and is cheap.In case being spring leaf fatigue failure in mining process, shortcoming one will cause losing of bucket tooth, the 2nd, and for guaranteeing enough frictional force, the size magnitude of interference of spring leaf between the toothholder hole is bigger, and disassembly process need be knocked energetically, and inconvenience is installed.
Summary of the invention
The purpose of this invention is to provide a kind of excavating tooth assembly, toothholder and bucket tooth, this bucket tooth when being subjected to the multidimensional active force, can keep advantages of higher stability and and form excavating tooth assembly with this toothholder with enough combined strengths, to impose on the locking piece shearing force of toothholder and bucket tooth very little for the disengaging component of bucket tooth simultaneously.
Realized a kind of excavating tooth assembly of aforementioned purpose, comprise bucket tooth, toothholder and locking piece, the bucket tooth rear portion provides cavity, the toothholder front end provides the toothholder head, this toothholder head is contained in the cavity of bucket tooth, the cavity of bucket tooth and toothholder head are firmly combined by locking piece, the cavity of bucket tooth has the inner surface with the external surface complementation of toothholder head, be characterized in, the top of toothholder head provides the first transition joint face, first fitting face and the 3rd fitting face, the bottom of toothholder head provides the second transition joint face, second fitting face and the 4th fitting face, first fitting face is connected by the first transition joint face with the 3rd fitting face, second fitting face is connected by the second transition joint face with the 4th fitting face, the angle that first fitting face and second fitting face become to be scheduled to the central axis of toothholder head respectively, the 3rd fitting face is parallel with the central axis of toothholder head respectively with the 4th fitting face, the 3rd fitting face and the 4th fitting face are connected the front end face of toothholder head respectively, and the inner surface of the cavity of bucket tooth provides respectively and first fitting face, second fitting face, a plurality of fitting faces of the 3rd fitting face and the contact of the 4th fitting face.
Described excavating tooth assembly, its further characteristics be, first fitting face and second fitting face all are arcwall faces, and the 3rd fitting face and the 4th fitting face all are the planes.
Described excavating tooth assembly, its further characteristics be, first fitting face and second fitting face are the axis of symmetry symmetry with the central axis, and the 3rd fitting face and the 4th fitting face also are the axis of symmetry symmetry with the central axis.
Described excavating tooth assembly, its further characteristics are that the described fitting face that the inner surface of the cavity of bucket tooth provides is fitted fully with first fitting face, second fitting face, the 3rd fitting face and the 4th fitting face respectively.
Described excavating tooth assembly, its further characteristics be, the two side portions of toothholder be you can well imagine for fluted, and the two side portions of the cavity of bucket tooth does not provide protruding rail, and this protruding rail is contained in this groove, and this protruding rail contacts with this groove.
Described excavating tooth assembly, its further characteristics be, the two side portions of the cavity of bucket tooth be you can well imagine for fluted, and the two side portions of toothholder does not provide protruding rail, and this protruding rail is contained in this groove, and this protruding rail contacts with this groove.
Described excavating tooth assembly, its further characteristics be, the both sides of the cavity of bucket tooth are the planes, and the both sides of toothholder also are the planes.
Described excavating tooth assembly, its further characteristics are, locking piece comprises pin and rubber ring, toothholder and bucket tooth cooperate the back to form connecting hole, pin is placed in this connecting hole, rubber ring is waled pin and is compressed in this connecting hole, thereby makes pin remain in this connecting hole, and then is formed on the constraint of the disengaging direction of toothholder and bucket tooth.
Realized aforementioned purpose toothholder, its front end provides the toothholder head, be characterized in, the top of toothholder head provides the first transition joint face, first fitting face and the 3rd fitting face, the bottom of toothholder head provides the second transition joint face, second fitting face and the 4th fitting face, first fitting face is connected by the first transition joint face with the 3rd fitting face, second fitting face is connected by the second transition joint face with the 4th fitting face, the angle that first fitting face and second fitting face become to be scheduled to the central axis of toothholder head respectively, the 3rd fitting face is parallel with the central axis of toothholder head respectively with the 4th fitting face, and the 3rd fitting face and the 4th fitting face are connected the front end face of toothholder head respectively.
Realized aforementioned purpose bucket tooth, its rear end provides cavity, is used for matching with aforesaid toothholder, is characterized in, the inner surface of cavity provides a plurality of fitting faces that contact with first fitting face, second fitting face, the 3rd fitting face and the 4th fitting face respectively.
Aforesaid excavating tooth assembly, toothholder and bucket tooth have such advantage: it is free unrestricted having only between bucket tooth after the assembling and the toothholder along a direction, constraint in the direction is given by locking piece, think the stability that guarantees assembling, the excavation component (deviating from power) that is parallel to this direction is to need emphasis to consider, in the mining process, after the fitting face that bucket tooth obtains the toothholder head of toothholder supports, fitting face at the cavity of bucket tooth produces active force, these active forces and load form equilibrium relation, the because the 3rd, the 4th fitting face is parallel with central axis, the so the 3rd, the active force that the 4th fitting face is produced is perpendicular to the fitting face in the bucket tooth cavity, do not produce along the component on the central axial direction (deviating from power), will and first, the active force that second fitting face produces will maintain less level at the component perpendicular to central axial direction, this less component passes to the shearing force of locking piece also can be smaller, the possibility that locking piece is cut off destruction or violent wearing and tearing under the shearing force effect greatly reduces, thereby has guaranteed to comprise toothholder, bucket tooth, the stability of the excavating tooth assembly of locking piece and safety in utilization.
Description of drawings
Fig. 1 is the decomposition view of an embodiment of excavating tooth assembly of the present invention.
Fig. 2 is the stereogram of the toothholder among Fig. 1.
Fig. 3 is the side direction view of toothholder shown in Figure 2.
Fig. 4 is the partial sectional view of the bucket tooth among Fig. 1.
Fig. 5 is the bucket tooth after the assembling of Fig. 1 and the half sectional view of toothholder.
Fig. 6 is the sectional view along B-B line among Fig. 5.
Fig. 7 shows an embodiment of the excavating tooth assembly that is subjected to offset placed load.
Fig. 8 has shown the stressing conditions of bucket tooth in the excavating tooth assembly that is subjected to offset placed load.
Fig. 9 is the force analysis figure at C place among Fig. 8.
Figure 10 has shown the stressing conditions of an embodiment of bucket tooth.
Figure 11 has shown the stressing conditions of another embodiment of bucket tooth.
Figure 12 has shown the stereogram of the locking piece among the embodiment of excavating tooth assembly of the present invention.
Figure 13 is the decomposition view of the locking piece among Figure 12.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 4, an embodiment of excavating tooth assembly comprises toothholder 1, bucket tooth 2, pin 3 and rubber ring 4, and the front end of toothholder 1 provides toothholder head 10, and the rear end of bucket tooth 2 provides cavity 20, cavity 20.Again as shown in Figure 5, toothholder head 10 is contained in the cavity 20, and the cavity 20 of bucket tooth 2 and toothholder head 10 are firmly combined by locking piece.
As shown in Figures 2 and 3, the top of toothholder head 10 provides first fitting face 13, the first transition joint face 15 and the 3rd fitting face 11, the bottom of toothholder head 10 provides the second transition joint face 16, second fitting face 14 and the 4th fitting face 12, first fitting face 13 is connected by the first transition joint face 15 with the 3rd fitting face 11, second fitting face 14 is connected by the second transition joint face 16 with the 4th fitting face 12, first fitting face 13 and second fitting face 14 (are Fig. 1 with the central axis of toothholder head 10 respectively, Fig. 4, X-axis line among Fig. 5 and Fig. 7) angle that becomes to be scheduled to, the 3rd fitting face 11 is parallel with the central axis of toothholder head 10 respectively with the 4th fitting face 12, and the 3rd fitting face 11 and the 4th fitting face 12 are connected the front end face 17 of toothholder head 10 respectively.As shown in Figure 4, the inner surface of the cavity 20 of bucket tooth 2 provides a plurality of fitting faces 13 ', 14 ', 11 ' and 12 ' that contact with first fitting face 13, second fitting face 14, the 3rd fitting face 11 and the 4th fitting face 12 respectively.
The inner surface of the cavity 20 of bucket tooth 2 also provides the fitting face 15 ', 16 ' of the corresponding first transition joint face 15, the second transition joint face 16 respectively. Transition joint face 15,16 does not contact with fitting face 15 ', 16 ', promptly has the gap between them.For ease of simplify describing, below first fitting face 13, second fitting face 14, the 3rd fitting face 11 and the 4th fitting face 12 be called for short fitting face 13,14,11 and 12 respectively.
According to the assembling principle as can be known, it is free unrestricted having only between bucket tooth 2 and the toothholder 1 along X-axis line direction, constraint along X-axis line direction is given by inserting pin 3, think the stability that guarantees assembling, being parallel to along the excavation component (deviating from power) of X-axis line direction is to need emphasis to consider, in the mining process stressed (is the force analysis object with bucket tooth 2) as shown in Figure 5, the dash area among Fig. 5 is represented scraper bowl labial lamina 7.It is F1 (being through the power after simplifying) that bucket tooth 2 is subjected to external force, and visible bucket tooth 2 produces directed force F 2 at fitting face 11 ' after obtaining fitting face 11,14 supports, produces directed force F 3 at fitting face 14 ', and the relation of F2=F1+F3 is arranged.Because fitting face 11,11 ' and the X-axis line parallel, directed force F 2 does not produce along the component (deviating from power) on the X-axis line direction perpendicular to fitting face 11,11 '.Directed force F 3 is resolved into orthogonal component F4, F5, the direction of component F4 is parallel to the X-axis line, component F4 will maintain less level as can be seen, component F4 passes to the shearing force of pin 3 also can be smaller, the possibility that pin 3 is cut off destruction or violent wearing and tearing under the shearing force effect greatly reduces, thereby has guaranteed the stability and the safety in utilization of the excavating tooth assembly that toothholder 1, bucket tooth 2, pin 3 combine.
The aforementioned fitting face of toothholder 1, bucket tooth 2 is symmetrical arranged along X-direction, when bucket tooth 2 is subjected to force direction opposite with the F1 direction, also has above-mentioned stressed relation, and just acting surface changes the another side for symmetry.
With reference to Fig. 1 and Fig. 3, as a preferred structure, toothholder 1 both sides are provided with groove 21,23 respectively simultaneously, and accordingly, as shown in Figure 6, the dual-side of the cavity 20 of bucket tooth 2 has protruding rail 31,33.
Continuation is with reference to Fig. 5 and Fig. 6, during mated condition, protruding rail 31,33 work are as shown in the figure stressed, when bucket tooth 2 was subjected to digging force F1, fitting face 11,11 ' was when 14,14 ' contact is stressed, groove and protruding rail 21,31,23,33 also contacts simultaneously, stressed F6, F6 ', the component that contact point produces is F7, F8 and F7 ', F8 '.Can understand so so, the mechanical relationship formula of the bucket tooth 2 of this moment is: F2=F1+F3+F6+F6 ', and in other words, groove 21,23 and protruding rail 31,33 have been shared fitting face 14, the 14 ' power of being born, and make between fit structure stressed more balanced like this; In addition, groove 21,23 and protruding rail 31,33 formed cooperation areas make whole fit structure cooperate area to increase, so under equal force-bearing situation, the increase of stressed fitting face means the increase of frictional force, this part power will further offset power, and bucket tooth 2 and fitment stability, the safety in utilization of toothholder 1 are further strengthened.
Another kind of preferred structure: as shown in figure 11, the both sides of toothholder 1 are provided with protruding rail 31,33, and accordingly, the both sides of bucket tooth 2 are provided with complementary with it groove 21,23, have the aforesaid force mode that is subjected to too, have similar structural advantage equally.
As shown in Figure 7, when bucket tooth 2 was subjected to offset placed load P in mining process, bucket tooth 2 will be to toothholder 1 transfer torque.Bucket tooth 2 stressed off-axis promptly offset placed load can occur to central axis X, and this situation is almost followed each excavation course of action of bucket tooth 2, so offset placed load P also is the problem that bucket tooth 2 designs need emphasis to consider.
When bucket tooth 2 is subjected to offset placed load P, to there be a moment of torsion M on fit structure, to transmit around X axis, B-B line profile position in the corresponding diagram 5, Fig. 8 has shown the section of the embodiment of a bucket tooth, in the embodiment shown in fig. 8, the dual-side of bucket tooth is not provided with groove or protruding rail, suppose that toothholder 1 maintains static this moment, because foozle, there is fit clearance between toothholder 1 and the bucket tooth 2, bucket tooth 2 will rotate around X-axis, turn to certain position and only can block because of the contact of fitting face, contact point is 35,36, as shown in Figure 8, the fitting face 13 of toothholder 1,14 and the fitting face 13 ' of bucket tooth 2,14 ' all is curved surface, and this curved face type fitting face has following advantage than plane fitting face:
The one, under equal specification (in the industry with the bucket tooth width as specification standards), the area of curved surface is greater than the plane, thus the lifting surface area of curved surface greater than the plane, the load in the unit area is just little, stressedly more becomes even;
The 2nd, as shown in Figure 9, OA represents the plane fitting face, place, OA1 zone curve is represented curved face type fitting face of the present invention, OB represents another joint face, OA is vertical with OB, when being subjected to equal moment of torsion M, the relation that P1=P3 is then arranged, P1 is the active force that fitting face OA1 is subjected to, P3 is the active force that fitting face OA is subjected to, P1 is divided into N1, N2 at application point A1, N1 is vertical with OA1, and N2 and A1 point place circular arc are tangent, and N1<P3 is so just arranged, get OA=OA1, then the suffered torsional forces of O point act as P3*OA>N1*OA1; So the design indicates of curved surface fitting face goes out the active force littler to fillet 35,36, has reduced the possibility that bucket tooth is damaged.
Figure 10,11 has shown the bucket tooth with protruding rail or groove, because of both sides are provided with groove or protruding rail, fitting face between bucket tooth 2 and the toothholder 1 is except contact point 13,14,13 ', 14 ', also have point of contact 21,31,23,33, further like this destructive power of having disperseed moment of torsion to produce is further strengthened the stability and the safety of fit structure.
Shown in Figure 12 and 13, but rubber ring 4 utilizes the characteristic of its resilience by compression to wale pin 3, toothholder 1 cooperates the back to form connecting hole 30 (as shown in Figure 7) with bucket tooth 2, pin is placed in this connecting hole 30, the rubber ring 4 of waling pin 3 is subjected to the compression of connecting hole 30, thereby make pin 3 remain in this connecting hole 30, and then be formed on the constraint of the disengaging direction (being the equal of directions X) of toothholder 2 and bucket tooth 1.Rubber ring 3 has corrosion resistant characteristic, can adapt to different excavation operating modes and can not lose its original characteristic, this point be common steel spring leaf can not compare, in addition the flexibility of rubber can absorb, cushion the vibrations in the mining process, pin can be stablized remain in suitable position.

Claims (6)

1. excavating tooth assembly, comprise bucket tooth, toothholder and locking piece, the bucket tooth rear portion provides cavity, the toothholder front end provides the toothholder head, this toothholder head is contained in the cavity of bucket tooth, the cavity of bucket tooth and toothholder head are firmly combined by locking piece, the cavity of bucket tooth has the inner surface with the external surface complementation of toothholder head, it is characterized in that, the top of toothholder head provides the first transition joint face, first fitting face and the 3rd fitting face, the bottom of toothholder head provides the second transition joint face, second fitting face and the 4th fitting face, first fitting face is connected by the first transition joint face with the 3rd fitting face, second fitting face is connected by the second transition joint face with the 4th fitting face, the angle that first fitting face and second fitting face become to be scheduled to the central axis of toothholder head respectively, the 3rd fitting face is parallel with the central axis of toothholder head respectively with the 4th fitting face, the 3rd fitting face and the 4th fitting face are connected the front end face of toothholder head respectively, the inner surface of the cavity of bucket tooth provides respectively and first fitting face, second fitting face, a plurality of fitting faces of the 3rd fitting face and the contact of the 4th fitting face, first fitting face and second fitting face all are arcwall faces crooked on width, first fitting face and second fitting face are the axis of symmetry symmetry with the central axis, and the 3rd fitting face and the 4th fitting face also are the axis of symmetry symmetry with the central axis;
Locking piece comprises pin and rubber ring, toothholder and bucket tooth are formed on the connecting hole that extends on the width after cooperating, pin is placed in this connecting hole, rubber ring is waled pin and is compressed in this connecting hole, thereby make pin remain in this connecting hole, and then be formed on the constraint of the disengaging direction of toothholder and bucket tooth.
2. excavating tooth assembly as claimed in claim 1 is characterized in that, the 3rd fitting face and the 4th fitting face also are arcwall faces.
3. excavating tooth assembly as claimed in claim 2 is characterized in that, the described fitting face that the inner surface of the cavity of bucket tooth provides is fitted fully with first fitting face, second fitting face, the 3rd fitting face and the 4th fitting face respectively.
4. excavating tooth assembly as claimed in claim 1 is characterized in that, the two side portions of toothholder be you can well imagine for fluted, and the two side portions of the cavity of bucket tooth does not provide protruding rail, and this protruding rail is contained in this groove, and this protruding rail contacts with this groove.
5. excavating tooth assembly as claimed in claim 1 is characterized in that, the two side portions of the cavity of bucket tooth be you can well imagine for fluted, and the two side portions of toothholder does not provide protruding rail, and this protruding rail is contained in this groove, and this protruding rail contacts with this groove.
6. excavating tooth assembly as claimed in claim 1 is characterized in that the both sides of the cavity of bucket tooth are the planes, and the both sides of toothholder also are the planes.
CN2008102050122A 2008-12-30 2008-12-30 Excavating tooth component, tooth holder and bucket teeth Active CN101768992B (en)

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CN101768992B true CN101768992B (en) 2011-12-21

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CN102704529A (en) * 2012-06-12 2012-10-03 三一重机有限公司 Tooth pin, excavation tooth component and excavating machine
CN102864813B (en) * 2012-07-26 2016-12-07 宁波禾顺新材料有限公司 A kind of stable dipper teeth of digging machine, toothholder and assembly thereof
EP2948597B1 (en) * 2013-01-25 2022-04-27 CQMS Pty Ltd An excavator wear assembly
CN103317535B (en) * 2013-03-13 2016-05-25 宁波敏实汽车零部件技术研发有限公司 Shovel cutting knife and knife rest thereof
CN104480992A (en) * 2014-12-11 2015-04-01 柳州柳工挖掘机有限公司 Excavator bucket tooth connection mechanism
SE542369C2 (en) * 2016-05-23 2020-04-14 Combi Wear Parts Ab Wear system
CN108708424B (en) * 2018-05-29 2020-02-07 马鞍山松鹤信息科技有限公司 Quick-change bucket tooth of excavator
CN108729495B (en) * 2018-05-29 2019-11-22 郭泽洪 A kind of excavator magnet-type Guick-changing dipper teeth
CN108678067B (en) * 2018-05-29 2019-11-08 周凤菊 A kind of excavator bucket teeth
CN108729496B (en) * 2018-05-29 2019-11-12 郭木琴 A kind of excavator spring fast-assembling bucket tooth
CN115516176A (en) * 2020-03-04 2022-12-23 现代斗山英维高株式会社 Digging tooth and digging bucket with same
CN112031067A (en) * 2020-08-14 2020-12-04 承德石油高等专科学校 Bucket tooth, bucket and bucket tooth drop detection system
CN112282754B (en) * 2020-10-29 2021-06-01 徐州中矿汇弘矿山设备有限公司 Tooth holder and tooth boot system

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CN2122174U (en) * 1990-08-30 1992-11-18 埃斯科公司 Digging bucket teeth esp. for large-size drugline bucket
CN1664256A (en) * 1999-10-01 2005-09-07 沃尔沃建造设备控股(瑞典)有限公司 Assemblies of teeth of earth moving machines
CN101006230A (en) * 2004-08-02 2007-07-25 温都崴铸造有限公司 Tooth and adaptor assembly

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2030215U (en) * 1986-12-04 1989-01-04 埃斯科公司 Assembly digging teeth
CN2122174U (en) * 1990-08-30 1992-11-18 埃斯科公司 Digging bucket teeth esp. for large-size drugline bucket
CN1664256A (en) * 1999-10-01 2005-09-07 沃尔沃建造设备控股(瑞典)有限公司 Assemblies of teeth of earth moving machines
CN101006230A (en) * 2004-08-02 2007-07-25 温都崴铸造有限公司 Tooth and adaptor assembly

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