CN104405008B - Bucket tooth assembly - Google Patents
Bucket tooth assembly Download PDFInfo
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- CN104405008B CN104405008B CN201410779405.XA CN201410779405A CN104405008B CN 104405008 B CN104405008 B CN 104405008B CN 201410779405 A CN201410779405 A CN 201410779405A CN 104405008 B CN104405008 B CN 104405008B
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- pin
- lateral pin
- toothholder
- hole
- tooth
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Abstract
The present invention relates to bucket tooth assembly, for solving the shortcoming that existing bucket tooth assembly maintainability is poor or locking piece structure is complicated, intensity is weak, damage, the open a kind of bucket tooth assembly of the present invention, including tooth set, toothholder, locking piece, tooth set is inserted into toothholder front end, toothholder is provided with lateral pin hole and the perpendicular pin-and-hole staggered with lateral pin hole, locking piece includes lateral pin and perpendicular pin, perpendicular pin intersects location axial to lateral pin with lateral pin, and tooth puts and is provided with for contacting the spacing limiting section preventing tooth set from coming off forward from toothholder Plug Division with lateral pin end.In the present invention, the limiting section that lateral pin end puts with tooth contacts spacing, prevent tooth set forward slip from splitting away off from toothholder, lateral pin left and right directions is then positioned by perpendicular pin, preventing lateral pin left and right directions from moving causes the position-limiting action of lateral pin to lose efficacy, the spacing work of the most revocable lateral pin when exiting perpendicular pin, in order to be replaced tooth set safeguarding.Perpendicular pin is employed herein, maintains easily, possess again enough intensity simultaneously, be hardly damaged.
Description
Technical field
The present invention relates to a kind of digging element, particularly relate to a kind of bucket tooth assembly.
Background technology
Engineering machinery, the excavator in mining machinery field, loader, Mars Miner are by carrying out excavating or reprint with scraper bowl
Operation, scraper bowl plays cutting material the effect of loaded material.For reducing Cat-in resisting force, increase scraper bowl cutting power, need at shovel
Bucket leading portion installs bucket tooth assembly additional, its purpose: one is that protection scraper bowl working end is not by too early, mistake quick-wearing；Two are to increase incision energy
Power；Three is by changing worn-out bucket tooth assembly, makes scraper bowl working end keep sharp, reduces simultaneously and safeguard use cost.
Bucket tooth assembly is usually designed to a few part, and such as tooth set, toothholder and locking piece, wherein tooth set belongs to vulnerable part, mill
Needing after damage to be replaced, locking piece and toothholder mostly are reusable component.There is ledge toothholder front end, can with sleeve in
Tooth set rear end cavity in, by locking piece make toothholder and tooth set combine without departing from.When tooth set changed by needs, pass through
Remove locking piece, change tooth set.In existing bucket tooth assembly, the cooperation of tooth set and toothholder is also the simple pre-small post-large conical surface
Coordinate.Because of processing, fixing reason, fit clearance is big, and when loader discharging, tooth set can rock around steady pin.
Because scraper bowl working environment is complicated, the stressing conditions of bucket tooth assembly also very severe, in operation process, bucket tooth assembly is wanted
Bear impulsive force and moment of torsion that the alternate loads such as axial load, vertical load, lateral load cause.Reasonably design toothholder and tooth
The connection of set, existing particularly important of matching relationship.Stability Analysis of Structures is wanted in the cooperation of toothholder and tooth set, and intensity is high, easy to assemble, reliable
Property high.Needing because of the layout of bucket tooth assembly simultaneously, and safeguard that space limits, the design of locking piece is the most extremely important, mainly divides
For three major types: lateral pin, perpendicular pin, abaculus.Lateral pin is fairly simple easy realization in layout, requires low to bucket tooth assembly, but
Joining space and limit not easy care because turning on the closely spaced scraper bowl of bucket tooth, gap is big, and tooth set rocks substantially.Perpendicular pin is not limited by tooth pitch
System, but inconvenient on bucket tooth is arranged, complex process.Abaculus formula is low to space requirement, and it is convenient to arrange, but to abaculus
Mechanical property requirements is high, needs special toothholder and bucket tooth to coordinate the active force reduced abaculus.
Summary of the invention
It is an object of the invention to the shortcoming solving existing bucket tooth assembly, it is provided that a kind of toothholder is worked good with tooth set and convenient dimension
The bucket tooth assembly protected.
The present invention is to realize the technical scheme of its purpose to be such that constructing a kind of bucket tooth assembly, including tooth set, toothholder,
Locking piece, tooth set rear end has a cavity, and toothholder front end is the Plug Division being inserted in the cavity of tooth set rear end, arranges on toothholder
Having the lateral pin hole of a through toothholder of transverse horizontal and vertical and that lateral pin hole is staggered perpendicular pin-and-hole, locking piece includes being positioned in lateral pin hole
Lateral pin and the perpendicular pin that is positioned in perpendicular pin-and-hole, perpendicular pin intersects location axial to lateral pin with lateral pin, tooth put be provided with for horizontal stroke
Pin end contacts the spacing limiting section preventing tooth set from coming off forward from toothholder Plug Division.In the present invention, lateral pin end and tooth set
On limiting section contact spacing, prevent tooth set forward slip from splitting away off from toothholder, perpendicular pin is then fixed to horizontal left and right directions
Position, prevents lateral pin left and right directions from moving and causes the position-limiting action of lateral pin to lose efficacy, the spacing work of the most revocable lateral pin when exiting perpendicular pin,
To be replaced tooth set safeguarding.In the present invention, practical perpendicular pin, maintains easily, possesses again enough intensity simultaneously, be difficult to
Damage.
In the present invention, further, lateral pin is the two rank cylinders including coaxial spacing head and bar portion, lateral pin hole shape with
Lateral pin form fit, bar portion end contacts for the limiting section that puts with tooth is spacing.Lateral pin has spacing head, thus can realize
The two-way location, left and right of lateral pin, it is to avoid lateral pin controls to move left and right at lateral pin.Wherein lateral pin is that the two square quadrangulars in rank are for the most excellent
Technical scheme more, the most spacing head is square, and bar portion also be quadrangular shape, so can prevent lateral pin installation when again
Lateral pin hole rotates, convenient installation.Certainly lateral pin can also be other two rank multiedge cylinder such as two rank tri-prismoid, two rank five
Prism, two rank hexagonal prisms, two rank eight prisms etc., the cross section of the even two i.e. cylinders of rank non-cylinder is not rounded
Shape.
At above-mentioned bucket tooth assembly, lateral pin is provided with lateral pin locating slot on the leading flank or trailing flank in its bar portion further, perpendicular
Pin sleeve is in described lateral pin locating slot.Being provided with the elastomeric element providing axial elastic force to lateral pin on lateral pin, perpendicular pin has promotion
Lateral pin moves laterally and makes the spigot surface of the lateral pin described elastomeric element of compression.Elastomeric element is rubber sleeve, and rubber sleeve is sleeved on lateral pin
Bar portion and the junction of spacing head.The middle part of spigot surface is provided with groove, and lateral pin locating slot and the side of guide face contacts have
There is the ridge that can embed in groove.Taking this structure, when perpendicular pin is inserted in perpendicular pin-and-hole, the spigot surface of perpendicular pin promotes
Lateral pin moves axially, and lateral pin end stretches out from lateral pin hole, and the limiting section put with tooth contacts and spacing tooth set carried out front and back
To upper limit.Moving axially of lateral pin can cause lateral pin spacing header suppression rubber sleeve, and rubber sleeve produces elastic force.When perpendicular pin sleeve
When putting in place, the middle part of perpendicular pin is positioned in the locating slot of lateral pin, and the ridge on lateral pin locating slot side is trapped on spigot surface
In groove, due to the elastic force effect of rubber ring so that lateral pin is in close contact with perpendicular pin and forms interlocking, namely lateral pin can not move left and right
Dynamic, perpendicular pin can not move up and down, thus avoids the latch functions of locking piece to lose efficacy.
At above-mentioned bucket tooth assembly, perpendicular pin-and-hole interlocks with lateral pin bore portion, and perpendicular pin is by moon shape guide part and square location division structure
Become, the moon shape guide part arcuate flanks constitute spigot surface, guide part is positioned at lateral pin locating slot, and perpendicular pin-and-hole is square opening, location
The two sides that portion is parallel to each other coordinate with the two side walls of perpendicular pin-and-hole.In this scheme, perpendicular pin guide part and location division fore-and-aft direction
The thickness that thickness sum is perpendicular pin fore-and-aft direction, namely width dimensions before and after perpendicular pin-and-hole, the width on the left and right directions of location division
For the width of perpendicular pin, namely perpendicular pin-and-hole left and right width dimensions.Increase location division and can strengthen the intensity of perpendicular pin, a left side for location division simultaneously
The side that the right side is parallel to each other coordinates with perpendicular pin-and-hole left and right hole wall, can increase the stability that perpendicular pin is installed.In the present invention, perpendicular pin-and-hole
Can also be fully staggered with lateral pin hole, i.e. erect the degree of depth equal to lateral pin locating slot of the width on pin-and-hole fore-and-aft direction, now erecting pin can
Being constituted with only guide part, guide part is fully located in lateral pin locating slot.
In above-mentioned bucket tooth assembly, tooth set both sides, rear end have rearwardly projecting journal stirrup, and limiting section is disposed therein a journal stirrup
Inner side, the two sides at rear portion, toothholder Plug Division have along toothholder Plug Division central axial direction extend square groove, tooth set rear end
The journal stirrup of both sides is embedded in square groove.The journal stirrup of tooth set both sides, rear end, for arranging the limiting section of tooth set, makes limit in design
Move behind the portion of position, namely make to be moved rearwards by when designing lateral pin hole and perpendicular pin-and-hole, thus avoid at the Plug Division of toothholder design pin
Hole and affect the intensity of toothholder, in journal stirrup is embedded in the square groove of both sides, toothholder rear end simultaneously, tooth set can be increased and coordinate with toothholder
Stability, is more beneficial for avoiding tooth to be enclosed within toothholder and rocks.
In above-mentioned bucket tooth assembly, tooth set limiting section is provided in the projection inside journal stirrup, and limiting section is overlapped with tooth in toothholder Plug Division
There is on adjacent side the chute sliding into rear, lateral pin hole for tooth set limiting section, thus avoid tooth to overlap and have too between toothholder
Big fit clearance and cause what tooth overlapped to rock.
Compared with prior art, its advantage is the present invention: the invention provides and a kind of cooperation with perpendicular pin from lateral pin limits tooth set
The tooth set locking mode of position locking, and the replacing maintenance that this locking mode facilitates tooth to overlap, possess again enough intensity, tool simultaneously
There is high stability.
Accompanying drawing explanation
Fig. 1 is that bucket tooth assembly of the present invention assembles schematic diagram；
Fig. 2 is the structural representation of toothholder in bucket tooth assembly of the present invention；
Fig. 3 is the left side structure schematic diagram of toothholder in bucket tooth assembly of the present invention；
Fig. 4 is the right side structure schematic diagram of toothholder in bucket tooth assembly of the present invention；
Fig. 5 is the structural representation of tooth set in bucket tooth assembly of the present invention；
Fig. 6 be in Fig. 4 toothholder A-A to sectional view；
Fig. 7 is the front view of perpendicular pin in bucket tooth assembly of the present invention；
Fig. 8 is the structural representation of perpendicular pin in bucket tooth assembly of the present invention；
Fig. 9 is the structural representation of lateral pin in bucket tooth assembly of the present invention；
Figure 10 is the structural representation of rubber ring in bucket tooth assembly of the present invention.
In figure, sequence number is as follows:
Tooth set 10, cavity 11, journal stirrup 12, limiting section 13；
Lateral pin 20, spacing head 21, bar portion 22, locating slot 23, ridge 24；
Perpendicular pin 30, guide part 31, spigot surface 32, groove 33, location division 34；
Toothholder 40, Plug Division 41, installation portion 42, lateral pin hole 43, perpendicular pin-and-hole 44, chute 45, square groove 46；
Rubber ring 50.
Detailed description of the invention
Specific embodiments is described below in conjunction with the accompanying drawings.
As it is shown in figure 1, bucket tooth assembly includes tooth set 10, toothholder 40, locking piece, locking piece includes lateral pin 20, perpendicular pin
30, elastic component rubber ring 50.As it is shown in figure 5, tooth overlaps 10 rear ends has a cavity 11, overlap 10 both sides, rear end at tooth and respectively have
Having a journal stirrup extending back prominent 12, wherein the inner side at left side journal stirrup 12 has a projection, the limit that this projection is overlapped for tooth
Position portion 13, for preventing tooth set 10 from coming off from the Plug Division 41 of toothholder 40.As shown in Figure 2, Figure 3, Figure 4, toothholder
40 front ends are to be inserted into tooth to overlap the Plug Division 41 in 10 rear end cavitys 11, and toothholder 40 rear end is for be fixedly mounted on shovel for support
Installation portion 42 on the parts such as bucket, bucket, is provided with the lateral pin hole 43 of a through toothholder of transverse horizontal 40 on toothholder 40
With the vertical and staggered perpendicular pin-and-hole 44 in lateral pin hole 43, lateral pin hole 43 and perpendicular pin-and-hole 44 are arranged on installation portion 42 and Plug Division 41
Adjoiner.Tooth set limiting section is provided in the projection inside journal stirrup, the side that toothholder Plug Division 41 is adjacent with tooth set limiting section 13
There is on the left surface of face namely toothholder the chute 45 sliding into rear, lateral pin hole for tooth set limiting section 13, initiateing of chute 45
End is positioned at Plug Division 41 foremost, and the rear end of chute 45 is positioned at the rear in lateral pin hole 43.The two of rear portion, toothholder Plug Division 41
Side has the square groove 46 extended back along toothholder Plug Division 41 central axial direction, when tooth overlaps 10 sleeves on toothholder 40
And after installation puts in place, tooth overlaps the journal stirrup 12 of 10 both sides, rear end and is embedded in square groove 46, and the limiting section 13 on journal stirrup 12
Also the rear in lateral pin hole 43 it is located exactly at.
As shown in Figure 6, lateral pin hole 43 and perpendicular pin-and-hole 44 are arranged on the adjoiner of installation portion 42 and Plug Division 41, wherein
The lateral pin hole 43 through toothholder of transverse horizontal, it is staggered that perpendicular pin-and-hole 44 vertically runs through toothholder, lateral pin hole 43 and perpendicular pin-and-hole 44 part.
As shown in Fig. 7 Fig. 8, perpendicular pin 30 is made up of moon shape guide part 31 and square location division 34, the moon shape guide part 31
Arcuate flanks constitute spigot surface 32, spigot surface 32 is symmetrical above and below in arcuation, has groove 33 at the middle part of spigot surface 32.
Perpendicular pin-and-hole 44 is square opening, and the two sides that location division 34 is parallel to each other coordinate with the two side walls of perpendicular pin-and-hole 44.Perpendicular pin guides
The thickness sum of portion 31 and location division 34 fore-and-aft direction is the thickness of perpendicular pin 30 fore-and-aft direction, namely wide before and after perpendicular pin-and-hole 44
Degree size, the width on the left and right directions of location division 34 is the width of perpendicular pin 30, namely perpendicular pin-and-hole about 44 width dimensions, increases
Adding location, 44 can strengthen the intensity of perpendicular pin 30, the side that the left and right of location division 34 is parallel to each other simultaneously and perpendicular pin-and-hole left and right hole wall
Coordinate, the stability after perpendicular pin 30 is installed can be increased.
As it is shown in figure 9, lateral pin 20 is the two rank four prisms cylinders including coaxial spacing head 21 and bar portion 22, namely spacing head
Portion 21 is square, and bar portion 22 is four rib main bodys.Lateral pin hole 43 shape and lateral pin 20 form fit, namely lateral pin hole 43
Also be right section of size of two rank square holes, i.e. lateral pin hole 43 more than left section of size, the rightest section for accommodating the limit of lateral pin 20
Potential head portion 21.Elastomeric element rubber ring 50 is sleeved on the junction in lateral pin bar portion 22 and spacing head 21, the knot of rubber ring 50
Structure is as shown in Figure 10.Trailing flank in lateral pin bar portion 22 has locating slot 23, and wherein the left lateral sides of locating slot 23 has mountain
Ridge 24, the guide part 31 of perpendicular pin 30 is positioned in locating slot 23, and mountain ridge 24 connects with perpendicular pin spigot surface 32
Touching, when perpendicular pin 30 moves down at perpendicular pin-and-hole 44, spigot surface 32 can promote lateral pin 20 to be moved to the left, the limit of lateral pin 20
Potential head portion compressing rubber circle 50, rubber ring 50 provides elastic force the most to the right to lateral pin, when perpendicular pin 30 plug-in mounting puts in place, fixed
Mountain ridge 24 on the groove 23 of position is embedded into the groove 33 in the middle part of spigot surface 32, and mountain ridge 24 just can limit perpendicular pin
30 move up and down, and prevent perpendicular pin 30 from coming off.Lateral pin 20 forms interlocking with perpendicular pin 30.
In the present embodiment, the assembling process of bucket tooth assembly is as follows: be sleeved on lateral pin 20 by elastic component rubber ring 50,
And lateral pin 20 is inserted from lateral pin hole right-hand member, tooth set 10, towards rear, is being sleeved on toothholder 40 by the locating slot on lateral pin 20
On, until tooth overlaps the journal stirrup 12 of 10 both sides, rear end and is completely inserted in the square groove 46 of toothholder both sides, now left side journal stirrup to
The limiting section of toothholder direction projection is positioned at the rear in lateral pin hole 43, is at this moment inserted in perpendicular pin-and-hole 44 by perpendicular pin 30, wherein erects
Forward, guide part 31 is positioned in the locating slot 23 of lateral pin 20 guide part 31 of pin 30, along with the insertion that perpendicular pin 30 is downward,
The spigot surface of perpendicular pin 30 promotes lateral pin to be moved to the left, the spacing head 21 compressing rubber circle 50 of lateral pin, so that rubber ring 50
Thering is provided elastic force the most to the right to lateral pin, the end in lateral pin bar portion 22 the most gradually stretches out from the left end in lateral pin hole 43 and is positioned at tooth set limit
The front portion in position portion 13, thus block tooth set 10 and come off from toothholder 40.In perpendicular pin 30 is completely inserted into perpendicular pin-and-hole 44
Time, the mountain ridge 24 on locating slot 23 is embedded into the groove 33 in the middle part of spigot surface 32, and rubber ring 50 carries to lateral pin 20
The axial elastic force of confession makes lateral pin ridge 24 of going up a hill be embedded in this state in the groove 33 in the middle part of spigot surface 32 and protected
Holding, mountain ridge 24 just can limit perpendicular pin 30 and move up and down, and prevents perpendicular pin 30 from coming off, and lateral pin 20 is with perpendicular pin 30 the most just
Form interlocking.When tooth set 10 is replaced safeguarding by needs, by applying external force, perpendicular pin is taken out from perpendicular pin-and-hole 44, execute
When adding external force, lateral pin is gone up a hill and is skidded off in the ridge 24 groove 33 from spigot surface 32, after perpendicular pin 30 takes out, and perpendicular pin 30
Moving right under the elastic reaction of rubber ring 50, the end of lateral pin 20 is the most just retracted in lateral pin hole 43, spacing to tooth set
The position-limiting action in portion 13 eliminates, and tooth set 10 the most just can take out from tooth set, completes the replacing maintenance work of tooth set.This enforcement
Example employs perpendicular pin close with perpendicular keying, maintain easily, possess again enough intensity simultaneously, be hardly damaged.
Claims (10)
1. a bucket tooth assembly, including tooth set, toothholder, locking piece, described tooth set rear end has a cavity, described toothholder front end
For being inserted into the Plug Division in the cavity of tooth set rear end, it is characterised in that be provided with a through toothholder of transverse horizontal on toothholder
Lateral pin hole and the vertical perpendicular pin-and-hole interlocked with lateral pin hole, described locking piece includes the lateral pin being positioned in lateral pin hole and is positioned at
Perpendicular pin in described perpendicular pin-and-hole, described perpendicular pin intersects with described lateral pin and axially positions described lateral pin, and described tooth puts setting
Have for contacting the spacing limiting section preventing tooth set from coming off forward from toothholder Plug Division with lateral pin end.
Bucket tooth assembly the most according to claim 1, it is characterised in that described lateral pin is to include coaxial spacing head and bar portion
Two rank cylinders, described lateral pin hole shape and described lateral pin form fit, described bar portion end is for the limiting section put with tooth
Spacing contact.
Bucket tooth assembly the most according to claim 2, it is characterised in that described lateral pin be shaped as the two square four prisms cylinders in rank or
Other two rank multiedge cylinders or two rank non-cylinders.
Bucket tooth assembly the most according to any one of claim 1 to 3, it is characterised in that described lateral pin is in the front side in its bar portion
Being provided with lateral pin locating slot on face or trailing flank, described perpendicular pin sleeve is in described lateral pin locating slot.
Bucket tooth assembly the most according to claim 4, it is characterised in that described lateral pin is provided with provides axial elastic force to lateral pin
Elastomeric element, described perpendicular pin have promote lateral pin move laterally make lateral pin compress described elastomeric element spigot surface.
Bucket tooth assembly the most according to claim 5, it is characterised in that described elastomeric element is rubber sleeve, described rubber sleeve set
It is contained in the junction in described lateral pin bar portion and spacing head.
Bucket tooth assembly the most according to claim 5, it is characterised in that the middle part of described spigot surface is provided with groove, described lateral pin
Locating slot has, on the side of guide face contacts, the ridge that can embed in groove.
Bucket tooth assembly the most according to claim 7, it is characterised in that described perpendicular pin-and-hole interlocks with described lateral pin bore portion, institute
State perpendicular pin to be made up of moon shape guide part and square location division, the described moon arcuate flanks of shape guide part constitute described guiding
Face, described guide part is positioned at described lateral pin locating slot, and described perpendicular pin-and-hole is square opening, and described location division is parallel to each other
Two sides coordinate with the two side walls of described perpendicular pin-and-hole.
Bucket tooth assembly the most according to claim 1, it is characterised in that described tooth set both sides, rear end have rearwardly projecting
Ear, described limiting section is disposed therein the inner side of a journal stirrup, and the two sides at rear portion, described toothholder Plug Division have inserts along toothholder
Connecing the square groove that portion's central axial direction extends, the journal stirrup of described tooth set both sides, rear end is embedded in described square groove.
10. according to the bucket tooth assembly described in claim 1 or 9, it is characterised in that described toothholder Plug Division is adjacent with tooth set limiting section
Side on have and slide into the chute at rear, lateral pin hole for tooth set limiting section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779405.XA CN104405008B (en) | 2014-12-16 | 2014-12-16 | Bucket tooth assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779405.XA CN104405008B (en) | 2014-12-16 | 2014-12-16 | Bucket tooth assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104405008A CN104405008A (en) | 2015-03-11 |
| CN104405008B true CN104405008B (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410779405.XA Active CN104405008B (en) | 2014-12-16 | 2014-12-16 | Bucket tooth assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405008B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2017261340B2 (en) * | 2016-05-05 | 2022-10-27 | Esco Group Llc | A wear part for earth working equipment |
| CN106638759A (en) * | 2016-12-23 | 2017-05-10 | 熊丽 | Excavator dipper tooth assembly with improved connecting structure |
| CN107386356A (en) * | 2017-08-30 | 2017-11-24 | 宁波吉威熔模铸造有限公司 | A kind of manufacture craft of excavator bucket teeth |
| CN108729497A (en) * | 2018-07-16 | 2018-11-02 | 宁波市鄞州精铸五金厂 | A kind of excavator bucket teeth |
| CN108951751A (en) * | 2018-07-16 | 2018-12-07 | 宁波市鄞州精铸五金厂 | Excavator bucket teeth |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120304507A1 (en) * | 2011-06-01 | 2012-12-06 | Jung-Ching Ko | Structure of Bucket Tooth for Construction Tools |
| US8943716B2 (en) * | 2011-10-10 | 2015-02-03 | Caterpillar Inc. | Implement tooth assembly with tip and adapter |
| CN102619253B (en) * | 2012-04-11 | 2015-05-06 | 宁波市鄞州精铸五金厂 | Bucket tooth of excavator |
| CN203238696U (en) * | 2013-05-10 | 2013-10-16 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
| CN103452163A (en) * | 2013-09-12 | 2013-12-18 | 太原重工股份有限公司 | Excavator and bucket tooth connection assembly thereof |
| CN103774713B (en) * | 2013-11-26 | 2016-05-04 | 广西柳工机械股份有限公司 | A kind of bucket tooth assembly |
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2014
- 2014-12-16 CN CN201410779405.XA patent/CN104405008B/en active Active
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| CN104405008A (en) | 2015-03-11 |
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