CN106836367A - A kind of die forging method of high intensity bucket tooth and its crown - Google Patents
A kind of die forging method of high intensity bucket tooth and its crown Download PDFInfo
- Publication number
- CN106836367A CN106836367A CN201611254641.5A CN201611254641A CN106836367A CN 106836367 A CN106836367 A CN 106836367A CN 201611254641 A CN201611254641 A CN 201611254641A CN 106836367 A CN106836367 A CN 106836367A
- Authority
- CN
- China
- Prior art keywords
- crown
- connecting seat
- bucket tooth
- high intensity
- forging
- 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.)
- Pending
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K5/00—Making tools or tool parts, e.g. pliers
- B21K5/12—Making tools or tool parts, e.g. pliers other cutting tools
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- E02F9/285—Teeth characterised by the material used
-
- 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
- E02F9/2858—Teeth characterised by shape
Abstract
The invention discloses a kind of high intensity bucket tooth and its die forging method of crown, including connecting seat and crown, connecting seat uses medium carbon steel casting, crown uses high strength alloy steel die-forging forming, connecting seat lower surface is provided with connecting plate near the side of crown, connecting seat upper surface is provided with pressing plate near crown side, connecting seat and the opposite end face of crown, pressing plate and connecting plate collectively form a mounting groove, crown is located in mounting groove near one end of connecting seat, it is detachably connected between crown and connecting seat, connecting seat on a side wall of crown away from being provided with pilot hole, the pilot hole is used to be connected connecting seat with bucket.Connecting seat of the invention and crown use different materials, the crown intensity of high strength alloy steel forging molding is very high, crown is set to have hardness very high, wearability is good, and the connecting seat of medium carbon steel casting, with good comprehensive mechanical property, good toughness, it is difficult to snap, so that the present invention has service life higher.
Description
Technical field
The present invention relates to excavator accessory technical field, the die forging side of a kind of high intensity bucket tooth and crown is specifically related to
Method.
Background technology
The bucket tooth of excavator-type shovel clamshell excavator is presently used for, bucket lower end is fixed on, directly contact road surface, its effect is to scoop up
The hard thing such as stone, soil, so as to protect bucket without damage.Bucket tooth is the easy consumption part in the excavator course of work,
When with contacting material high speed contact, than stronger, if strength ratio is relatively low, tooth tip portion is susceptible to deformation to the impulsive force being subject to,
Relative motion with the increase of excavating depth and with material, the whole surface to bucket tooth can produce forward extrusion power, especially dig
During pick rock type material, the frictional force between bucket tooth and material is bigger, therefore the intensity and construction of bucket tooth determine bucket tooth
Service life
The bucket tooth of prior art typically uses low-alloy steel material, and the comprehensive mechanical property of low-alloy steel material is preferable, no
Easily there is situation about snapping, but the abrasion of low-alloy steel material is than more serious, when may wear to can not play a protective role when, then
Needs carry out replacing treatment, and frequently changing bucket tooth not only reduces efficiency, so that use cost is also greatly increased；And
If make bucket tooth using hardness alloy material higher, although with preferable anti-wear performance, but comprehensive mechanical property
It is poor, it is easy to snap when using.
The content of the invention
For the problem that above-mentioned prior art is present, the present invention is further improved on prior art basis, this hair
Bright to be related to the die forging method of a kind of high intensity bucket tooth and crown, tip portions intensity of the invention is higher, and anti-wear performance is good, and
There is good comprehensive mechanical property with the connecting seat that crown is detachably connected, phenomenon of snapping is not susceptible to, so that of the invention
Possesses service life more long.
The present invention is achieved through the following technical solutions foregoing invention purpose.
A kind of high intensity bucket tooth, including connecting seat and crown, the connecting seat use medium carbon steel casting, the crown
Using high strength alloy steel die-forging forming, the connecting seat lower surface is provided with connecting plate near the side of crown, on connecting seat
Surface is provided with pressing plate near crown side, and the connecting seat end face opposite with crown, pressing plate and connecting plate are collectively formed
One mounting groove, the crown is located in mounting groove near one end of connecting seat, is detachably connected between the crown and connecting seat,
The connecting seat is used to be connected connecting seat with bucket away from pilot hole, the pilot hole is provided with a side wall of crown.
Connecting seat of the invention and crown use different materials, and the crown intensity of high strength alloy steel forging molding is very high,
Crown is set to have hardness very high, wearability is good, and the connecting seat of medium carbon steel casting, with good comprehensive mechanical property,
Good toughness, is difficult to snap, so that the present invention has service life higher, and the bucket tooth being just made with pure high-strength alloy
Compare, reduce cost.The present invention is provided with pressing plate and connecting plate on connecting seat, is on the one hand easy to fill crown and connecting seat
Match somebody with somebody, more importantly when bucket is moved upwards, crown receives downward pressure, and now pressing plate and connecting plate limit crown and dip down jointly
Tiltedly, so as to ensure the mining effect of bucket tooth.Crown and connecting seat are detachably connected, and are easy to flexibly change crown according to service condition
Or connecting seat, without changing whole bucket tooth.
Further, the upper surface of the crown is set to rectangular-shaped concave surface, and the concave surface is from crown upper surface and presses
Edges of boards extend to one end away from connecting seat of crown along contact position, and two or more reinforcements are provided with the concave surface
Muscle.High strength alloy steel is relatively costly, to save manufacturing cost, crown upper surface is set into concave surface, and in concave surface with setting
Reinforcement, that is, save manufacturing cost, and present invention intensity higher is can guarantee that again.
Further, the crown lower surface is provided with a stage portion, the height of the stage portion near one end of connecting seat
Degree is equal to or more than the thickness of connecting plate, the horizontal plane of the stage portion and the upper surface of connecting plate, so as to crown can be made
The lower surface basic horizontal of lower surface and connecting seat, or crown lower surface high is less than the lower surface of connecting seat, so as to reduce this hair
It is bright when using with the frictional force on ground.
Further, connected by screw rod between the crown and connecting seat, two or two are offered on this connecting plate of institute
The tapped through hole matched with screw rod more than individual, lower surface and the tapped through hole corresponding position of the crown offer and screw rod
The tapped blind hole of matching.From thread connecting mode, it is easy to the assembly or disassembly of crown and connecting seat.
Further, the connecting plate and pressing plate and connecting seat one into casting.
Further, elastomeric element is fixedly installed on connecting seat and the opposite end face of crown in the mounting groove, elasticity
Part is used to buffer impulsive force of the crown to connecting seat, plays a part of to protect connecting seat.
Further, the elastomeric element is nitrile rubber block, nitrile rubber block has heat-resisting, wear-resisting and ageing-resistant
Feature, and also good water resistance, air-tightness and excellent adhesive property.
Crown described in a kind of die forging method of crown is included using A-100 alloy steel dies forging moldings, the contour forging technique of crown
Following steps：
Step 1：Blanking；
Step 2：Blank machine adds；
Step 3：By machine plus after blank be put into heating by electric cooker；
Step 4：Forging famine is carried out using flat-die hammer, air cooling after forging famine is completed；
Step 5：Famine material is put into heating by electric cooker, while carrying out mould preheating；
Step 6：Using jump bit or counter-blow hammer die forging, air cooling after die forging is completed；
Step 7：Heat treatment.
The die-forging forming process of crown is completed by two fire, crystal grain can be made more to refine, ensure crown intensity higher.
Further, the heating process of blank is that electric in-furnace temperature first is risen into 850 DEG C in the step 2, is then incubated
60min, then electric in-furnace temperature is risen to 1050 DEG C, it is incubated 30min；
The heating process of waste material is that electric in-furnace temperature first is risen into 850 DEG C in the step 5, is then incubated 40min, then
Electric in-furnace temperature is risen to 1050 DEG C, 25min is incubated.
Blank or waste material are heated to 850 DEG C and are incubated, it is therefore intended that prevent heating too fast, and built-in thermal stress is excessive to be caused to produce
Raw crackle, influences the performance of crown.Blank or waste material are being heated to 1050 DEG C and are being incubated, it is therefore intended that make interior tissue austenite
Change, be conducive to deformation.
Further, the preheating temperature of mould is 250 DEG C~350 DEG C in the step 2, a length of 2 hours during preheating.
The present invention compared with prior art, be at least with following beneficial effect：
(1) of different materials be made crown by the present invention, and the crown intensity of high strength alloy steel forging molding is very high, makes
Crown has hardness and intensity very high, and wearability is good, and the connecting seat of medium carbon steel casting, with good comprehensive mechanical property
Can, good toughness is difficult to snap, so that the present invention has service life higher, and is just made with pure high-strength alloy
Bucket tooth machine ratio, reduces cost.
(2) present invention is provided with pressing plate and connecting plate on connecting seat, is on the one hand easy to assemble crown and connecting seat, more
Important is that, when bucket is moved upwards, crown receives downward pressure, and now to limit crown jointly downward-sloping for pressing plate and connecting plate, from
And ensure the mining effect of bucket tooth.
(3) high strength alloy steel is relatively costly, to save manufacturing cost, crown upper surface is set into concave surface, and recessed
Face saves manufacturing cost with reinforcement is set, and present invention intensity higher is can guarantee that again.
(4) present invention completes the die-forging forming process of crown by two fire, and crystal grain can be made more to refine, and without wasting
Excessive forging times, that is, ensured crown intensity higher, and processing cost has been saved again.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the schematic perspective view of one embodiment of the present invention；
The front view of Fig. 2 one embodiment of the present invention.
Reference and correspondence title in figure：
1- connecting seats, 2- crowns, 3- screw rods, 4- elastomeric elements, 11- connecting plates, 12- pressing plates, 13- pilot holes, 21- strengthens
Muscle, 22- stage portions.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
It is limitation of the invention.
Embodiment 1：
As depicted in figs. 1 and 2, a kind of high intensity bucket tooth, including connecting seat 1 and crown 2, connecting seat 1 are cast using medium carbon steel
Type, crown 2 is caused to use high strength alloy steel die-forging forming, the lower surface of connecting seat 1 that the side of crown 2 is provided with connecting plate
11, the upper surface of connecting seat 1 is provided with pressing plate 12 near the side of crown 2, connecting seat 1 and the opposite end face of crown 2, pressing plate 12 and
Connecting plate 13 collectively forms a mounting groove, and crown 2 is located in mounting groove near one end of connecting seat 1, crown 2 and connecting seat 1 it
Between be detachably connected, away from pilot hole 13 is provided with a side wall of crown 2, pilot hole 13 is used for connecting seat 1 connecting seat 1
It is connected with bucket.
Connecting seat of the invention 1 and crown 2 use different materials, and the intensity of crown 2 of high strength alloy steel forging molding is very
Height, makes crown 2 have hardness very high, and wearability is good, and the connecting seat 1 of medium carbon steel casting, with good comprehensive mechanics
Performance, good toughness is difficult to snap, so that the present invention has service life higher, and is just made with pure high-strength alloy
Bucket tooth compare, reduce cost.The present invention is provided with pressing plate 12 and connecting plate 11 on connecting seat 1, is on the one hand easy to tooth
Point 2 is assembled with connecting seat 1, and more importantly when bucket is moved upwards, crown 2 receives downward pressure, now pressing plate 12 and connecting plate
11 common limitation crowns 2 are downward-sloping, so as to ensure the mining effect of bucket tooth.Crown 2 and connecting seat 1 are detachably connected, and are easy to
Crown 2 or connecting seat 1 are flexibly changed according to service condition, without changing whole bucket tooth.
Embodiment 2：
The present embodiment is the further improvement done on the basis of above-described embodiment, as depicted in figs. 1 and 2, in the present embodiment
In, the upper surface of crown 2 is set to rectangular-shaped concave surface, and concave surface extends to from the upper surface of crown 2 with the edge contact position of pressing plate 12
One end away from connecting seat 1 of crown 2, is provided with the reinforcement 21 of two in concave surface, the number of certain reinforcement can be according to tooth
The specification of point 2 selects different numbers.High strength alloy steel is relatively costly, to save manufacturing cost, the upper surface of crown 2 is set to
Concave surface, and manufacturing cost is saved with reinforcement 21 is set in concave surface, present invention intensity higher is can guarantee that again.
Embodiment 3：
The present embodiment is the further improvement done on the basis of above-described embodiment, as depicted in figs. 1 and 2, in the present embodiment
In, connecting plate 11 and pressing plate 12 and the one of connecting seat 1 are set in the lower surface of crown 2 into casting near one end of connecting seat
There is a stage portion 22, the height of stage portion 22 is approximately equal to the thickness of connecting plate 11, horizontal plane and the connecting plate 11 of stage portion 22
Upper surface, so as to the lower surface basic horizontal of the lower surface of crown 2 and connecting seat 1 can be made, so that when reducing the present invention and using
With the frictional force on ground.
In addition, being connected by screw rod 3 between crown 2 and connecting seat 1, two are offered on connecting plate 11 with screw rod 3
The tapped through hole matched somebody with somebody, lower surface and the tapped through hole corresponding position of crown 2 offer the tapped blind hole matched with screw rod 3.Choosing
With thread connecting mode, it is easy to the assembly or disassembly of crown and connecting seat.
Embodiment 4：
The present embodiment is the further improvement done on the basis of above-described embodiment, as depicted in figs. 1 and 2, in the present embodiment
In, connection in mounting groove:1 with the opposite end face of crown 2 on be fixedly installed elastomeric element 4, elastomeric element is used to buffer crown 2
To the impulsive force of connecting seat 1, play a part of to protect connecting seat.Elastomeric element 4 is had from nitrile rubber block, nitrile rubber block
Heat-resisting, wear-resisting and ageing-resistant the characteristics of, and also good water resistance, air-tightness and excellent adhesive property.
Embodiment 5：
A kind of die forging method of crown, the present embodiment is the further improvement done on the basis of above-described embodiment, such as Fig. 1 and
Shown in Fig. 2, in the present embodiment, tooth:2 select A-100 alloy steel dies forging moldings, the contour forging technique of crown 2 to comprise the following steps：
Step 1：Blanking；
Step 2：Blank machine adds；
Step 3：By machine plus after blank be put into heating by electric cooker, heating process is that electric in-furnace temperature first is risen into 850 DEG C,
Then 60min is incubated, then electric in-furnace temperature is risen to 1050 DEG C, be incubated 30min；；
Step 4：Forging famine is carried out using flat-die hammer, air cooling after forging famine is completed；
Step 5：Famine material is put into heating by electric cooker, heating process is that electric in-furnace temperature first is risen into 850 DEG C, is then incubated
40min, then electric in-furnace temperature is risen to 1050 DEG C, it is incubated 25min；Carrying out mould preheating simultaneously, preheating temperature is 250 DEG C~
350 DEG C, a length of 2 hours during preheating；
Step 6：Using jump bit or counter-blow hammer die forging, air cooling after die forging is completed；
Step 7：Heat treatment.
The die-forging forming process of crown is completed by two fire, crystal grain can be made more to refine, ensure crown intensity higher.Base
Material or waste material are heated to 850 DEG C and are incubated, it is therefore intended that prevent heating too fast, built-in thermal stress is excessive to be caused to crack, shadow
Ring the performance of crown.Blank or waste material are being heated to 1050 DEG C and are being incubated, it is therefore intended that make interior tissue austenitizing, be conducive to
Deformation.
As described above, the present invention can preferably be implemented.
Claims (10)
1. a kind of high intensity bucket tooth, it is characterised in that：Including connecting seat (1) and crown (2), carbon in connecting seat (1) use
Steel casting, the crown (2) uses high strength alloy steel die-forging forming, and connecting seat (1) lower surface is near crown (2)
Side be provided with connecting plate (11), connecting seat (1) upper surface is provided with pressing plate (12), the connection near crown (2) side
Seat (1) collectively forms a mounting groove with the opposite end face of crown (2) and pressing plate (12), connecting plate (11), and the crown (2) is close to
One end of connecting seat (1) is located in mounting groove, is detachably connected between the crown (2) and connecting seat (1), the connecting seat
(1) away from being provided with pilot hole (13) on a side wall of crown (2), the pilot hole (13) for by connecting seat (1) with dig
Bucket connection.
2. high intensity bucket tooth according to claim 1, it is characterised in that：The upper surface of the crown (2) is set to rectangle
The concave surface of shape, the concave surface from crown (2) upper surface and pressing plate (12) edge contact position extend to crown (2) away from connecting seat
(1) one end, is provided with two or more reinforcements (21) in the concave surface.
3. high intensity bucket tooth according to claim 1, it is characterised in that：Crown (2) lower surface is near connecting seat (1)
One end be provided with a stage portion (22), the height of the stage portion (22) is equal to or more than the thickness of connecting plate (11), described
The horizontal plane of stage portion (22) and the upper surface of connecting plate (11).
4. high intensity bucket tooth according to claim 3, it is characterised in that：Pass through between the crown (2) and connecting seat (1)
Screw rod (3) is connected, and two or more tapped through holes matched with screw rod (3), institute are offered on the connecting plate (11)
The lower surface and tapped through hole corresponding position of stating crown (2) offer the tapped blind hole matched with screw rod (3).
5. high intensity bucket tooth according to claim 1, it is characterised in that：The connecting plate (11) and pressing plate (12) be connected
Seat (1) is integrally into casting.
6. high intensity bucket tooth according to claim 1, it is characterised in that：Connecting seat (1) and crown (2) in the mounting groove
Elastomeric element (4) is fixedly installed on opposite end face.
7. high intensity bucket tooth according to claim 6, it is characterised in that：The elastomeric element (4) is nitrile rubber block.
8. high intensity bucket tooth according to claim 1, it is characterised in that：The crown (2) uses A-100 steel alloy die forgings
Shaping, the contour forging technique of crown (2) is comprised the following steps：
Step 1：Blanking；
Step 2：Blank machine adds；
Step 3：By machine plus after blank be put into heating by electric cooker；
Step 4：Forging famine is carried out using flat-die hammer, air cooling after forging famine is completed；
Step 5：Famine material is put into heating by electric cooker, while carrying out mould preheating；
Step 6：Using jump bit or counter-blow hammer die forging, air cooling after die forging is completed；
Step 7：Heat treatment.
9. high intensity bucket tooth according to claim 8, it is characterised in that：
The heating process of blank is in the step 2, and electric in-furnace temperature first is risen into 850 DEG C, is then incubated 60min, then by electricity
In-furnace temperature rises to 1050 DEG C, is incubated 30min；
The heating process of waste material is that electric in-furnace temperature first is risen into 850 DEG C in the step 5, is then incubated 40min, then by electricity
In-furnace temperature rises to 1050 DEG C, is incubated 25min.
10. high intensity bucket tooth according to claim 8, it is characterised in that：The preheating temperature of mould is in the step 2
250 DEG C~350 DEG C, a length of 2 hours during preheating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254641.5A CN106836367A (en) | 2016-12-30 | 2016-12-30 | A kind of die forging method of high intensity bucket tooth and its crown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254641.5A CN106836367A (en) | 2016-12-30 | 2016-12-30 | A kind of die forging method of high intensity bucket tooth and its crown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106836367A true CN106836367A (en) | 2017-06-13 |
Family
ID=59114893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611254641.5A Pending CN106836367A (en) | 2016-12-30 | 2016-12-30 | A kind of die forging method of high intensity bucket tooth and its crown |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106836367A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898026A (en) * | 2021-10-20 | 2022-01-07 | 张宗强 | Excavator tooth point and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH544193A (en) * | 1971-03-15 | 1973-11-15 | Italricambi | Device for attaching a tooth to the grapple of earth moving machines |
| JP2002146850A (en) * | 2000-11-07 | 2002-05-22 | Komatsu Ltd | Tooth and adaptor for bucket and mounting structure thereof |
| EP1528165A1 (en) * | 2003-10-29 | 2005-05-04 | Liebherr-Hydraulikbagger GmbH | Excavating and/or gripping tool. |
| CN202227390U (en) * | 2011-10-13 | 2012-05-23 | 宁波通达精密铸造有限公司 | Bucket tooth |
| CN102619253A (en) * | 2012-04-11 | 2012-08-01 | 宁波市鄞州精铸五金厂 | Bucket tooth of excavator |
| CN105507363A (en) * | 2015-12-03 | 2016-04-20 | 天津市中机雄风机械有限公司 | Hopper tooth |
| CN106086623A (en) * | 2016-07-13 | 2016-11-09 | 江苏东顺新能源科技有限公司 | A kind of die forging bucket tooth material and die forging bucket tooth processing technique |
-
2016
- 2016-12-30 CN CN201611254641.5A patent/CN106836367A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH544193A (en) * | 1971-03-15 | 1973-11-15 | Italricambi | Device for attaching a tooth to the grapple of earth moving machines |
| JP2002146850A (en) * | 2000-11-07 | 2002-05-22 | Komatsu Ltd | Tooth and adaptor for bucket and mounting structure thereof |
| EP1528165A1 (en) * | 2003-10-29 | 2005-05-04 | Liebherr-Hydraulikbagger GmbH | Excavating and/or gripping tool. |
| CN202227390U (en) * | 2011-10-13 | 2012-05-23 | 宁波通达精密铸造有限公司 | Bucket tooth |
| CN102619253A (en) * | 2012-04-11 | 2012-08-01 | 宁波市鄞州精铸五金厂 | Bucket tooth of excavator |
| CN105507363A (en) * | 2015-12-03 | 2016-04-20 | 天津市中机雄风机械有限公司 | Hopper tooth |
| CN106086623A (en) * | 2016-07-13 | 2016-11-09 | 江苏东顺新能源科技有限公司 | A kind of die forging bucket tooth material and die forging bucket tooth processing technique |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898026A (en) * | 2021-10-20 | 2022-01-07 | 张宗强 | Excavator tooth point and manufacturing method thereof |
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Application publication date: 20170613 |