CN103243773A - Excavator bucket tooth - Google Patents
Excavator bucket tooth Download PDFInfo
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- CN103243773A CN103243773A CN2013101830359A CN201310183035A CN103243773A CN 103243773 A CN103243773 A CN 103243773A CN 2013101830359 A CN2013101830359 A CN 2013101830359A CN 201310183035 A CN201310183035 A CN 201310183035A CN 103243773 A CN103243773 A CN 103243773A
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- pin
- installing hole
- hole
- location division
- excavator bucket
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- 230000004323 axial length Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 31
- 230000000295 complement effect Effects 0.000 claims description 3
- 210000000515 tooth Anatomy 0.000 claims 12
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention provides an excavator bucket tooth and belongs to the technical field of machinery. The problem that existing excavator bucket teeth are inconvenient to install and dismantle and unfirm in structure is solved. The excavator bucket tooth comprises a tooth seat provided with an installing portion and a bucket tooth body provided with a connecting portion, wherein the installing portion is inserted into the connecting portion, a first installing hole which is through is arranged at the installing portion, and a second installing hole and a third installing hole which are through are arranged at the connecting portion. The second installing hole and the third installing hole are coaxial, the first installing hole, the second installing hole and the third installing hole form a through pin hole, a pin penetrates into the pin hole, an outer side wall of the pin is provided with a radially protruding positioning portion, an inner side wall of the second installing hole is provided with a guide groove matched with the positioning portion, the inner end of the guide groove is communicated with a positioning groove arranged between the installing portion and the connecting portion, and the axial length of the positioning groove is slightly larger than that of the positioning portion. The excavator bucket tooth has the advantages of being convenient to install and dismantle, firm in structure, high in stability and the like.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of component of excavator, particularly a kind of excavator bucket teeth.
Background technology
Excavator is to excavate with scraper bowl to be higher or lower than the material that holds machine side, and the haulage vehicle or unload earth moving plant to rickyard of packing into, excavator has become one of topmost engineering machinery in the engineering construction, the building site such as builds in town and country transformation, high ferro and all is widely used.The edge of power shovel all is provided with bucket tooth and toothholder, needs between the two to be connected with pin, that is to say on toothholder and the bucket tooth all will have the pin-and-hole that cooperates with pin, and toothholder is welded on the bucket edge of excavator simultaneously.Because motive power powerful during the excavator construction impacts bucket tooth and toothholder, pin has become the conduction maincenter of powerful active force between bucket tooth and toothholder, during momentary action, pin is the main supporting body of strength, and pin is through processing, the poor place of jump ring diameter is less than the diameter of pin, weakened the whole impact resistance of pin greatly, the poor place of jump ring on the pin has just become the weakest point of pin like this, though prior art has been improved the pin impact resistance, prolonged certain application life, but the position that defines jump ring makes eventually in the pin-and-hole scope of toothholder two ends, the poor place of pin jump ring is still the book weakness in the practical application, fracture easily, and there is situations such as being difficult for replacing in the fracture back.
For this reason, the applicant has proposed a kind of excavator bucket teeth [notice of authorization number be: CN202627065U], and it has solved the big and ineffective problem of existing excavator bucket teeth cost.This excavator bucket teeth comprises the toothholder with installation portion and the bucket tooth with connecting portion, offer the pin-and-hole that is on the same axial line on toothholder installation portion and bucket tooth two connecting portions, the installation portion of toothholder is inserted between two connecting portions of bucket tooth and by pin and jump ring and is connected, offering annular groove and jump ring on the pin is stuck in the annular groove, offer counterbore on the pin-and-hole inner face on the bucket tooth, the annular groove on counterbore and the pin is on the same vertical plane and jump ring is positioned at counterbore.
Though that above-mentioned excavator bucket teeth has is simple in structure, long service life and advantage applied widely, but still there is following shortcoming in it: 1, because pin is that tight fit is connected with pin-and-hole, need firmly pin be knocked in the pin-and-hole during installation, fitting operation is loaded down with trivial details, and wastes time and energy; 2, after use caused the pin fracture for a long time, the pin of fracture still rested in the pin-and-hole, stops up pin-and-hole, and easy-clear has not hindered the installation to new bucket tooth, and is uneconomical.
Summary of the invention
The objective of the invention is to have the problems referred to above at existing technology, proposed a kind of reasonable in design, installation and removal excavator bucket teeth easily.
Purpose of the present invention can realize by following technical proposal:
A kind of excavator bucket teeth, comprise the toothholder with installation portion and the bucket tooth with connecting portion, described installation portion is inserted in the described connecting portion, have on the described installation portion and connect the installing hole one that arranges, have on the described connecting portion and connect installing hole two and the installing hole three that arranges, described installing hole two and installing hole three coaxial settings, described installing hole two, installing hole one and installing hole three constitute a pin-and-hole that connects, be equipped with pin in the described pin-and-hole, it is characterized in that, the lateral wall of described pin has the location division of radially protruding, has the gathering sill that matches with this location division on the inside wall of described installing hole two, the inner of described gathering sill and be located at installation portion and connecting portion between locating slot UNICOM, the axial length of described locating slot is slightly larger than the axial length of described location division.
When bucket tooth is installed, the installation portion of toothholder is inserted in the connecting portion of bucket tooth, makes installing hole one, installing hole two and installing hole three or three holes to it, three holes are inserted into a pin in this pin-and-hole forming pin-and-hole thereafter.Pin is when inserting, and the location division on the pin and gathering sill are to it, and the location division moves inwardly into position point in locating slot along gathering sill, rotate pin, make the position point of pin in locating slot, this moment, pin can not move axially, and reached bucket tooth and toothholder purpose of connecting.
During dismounting, rotate pin, the location division of pin is turned in the gathering sill, move axially pin again, after pin withdrawed from fully, bucket tooth and toothholder can be separated from each other.
In above-mentioned excavator bucket teeth, be provided with the rubber centring ring in the described locating slot, the middle part of described rubber centring ring has the through hole that passes for above-mentioned pin, and the sidewall of described through hole has the draw-in groove that is complementary with above-mentioned location division.
The rubber centring ring is put into to locating slot, draw-in groove and gathering sill are arranged it, after pin inserted, the location division entered in the draw-in groove along gathering sill, rotated pin, and pin drives the rubber centring ring and rotates together, reached the purpose that bucket tooth and toothholder are connected.Owing to increased rubber seal, the frictional force of this rubber seal and locating slot is big, bucket tooth in use, the pin difficult drop-off, stability better.
In above-mentioned excavator bucket teeth, described centring ring circumferentially be evenly equipped with 6 corners.
In above-mentioned excavator bucket teeth, described locating slot and the coaxial setting of above-mentioned pin-and-hole, evenly be provided with on the sidewall of described locating slot 6 respectively with the arc groove of the corresponding setting in corner of above-mentioned centring ring.
When the rubber centring ring was positioned at locating slot, 6 corners were divided into and are positioned at 6 different arc grooves, and the rubber centring ring can circumferentially be positioned in the locating slot under the effect that does not have external force.When pin rotated, the corner moved in the adjacent arc groove from one of them arc groove, and the purpose that reaches is to make the location division break away from gathering sill.
In above-mentioned excavator bucket teeth, the quantity of described location division is 1-4, and a described 1-4 location division is evenly distributed in the same plane.
In above-mentioned excavator bucket teeth, the quantity of described location division is 2, and the quantity of described gathering sill is 2 and is oppositely arranged with this location division respectively that the quantity of described draw-in groove is 2 and is oppositely arranged with this location division respectively.
In above-mentioned excavator bucket teeth, the end of described pin is provided with the installation counterbore, and the cross section of described installation counterbore is square.The purpose that this installation counterbore is set is: make things convenient for instrument that pin is operated.
In above-mentioned excavator bucket teeth, described pin-and-hole vertically is located on the bucket tooth, and above-mentioned locating slot is located on the installation portion.
In above-mentioned excavator bucket teeth, described pin-and-hole laterally is located on the bucket tooth, and above-mentioned locating slot is located on the connecting portion.
In above-mentioned excavator bucket teeth, the sidepiece of described installation portion has groove, and the edge of described connecting portion is provided with the projection that matches with this groove.
Groove matches with projection, can prevent that bucket tooth and toothholder from circumferentially rotating, and makes the structure of this bucket tooth more firm, and service behaviour is more stable.
Compared with prior art, this excavator bucket teeth has the following advantages:
Pin and pin-and-hole are matched in clearance, can be not stuck in pin-and-hole after the pin fracture, improved the utilization rate of bucket tooth; Bucket tooth is connected by pin with toothholder, mounts and dismounts simple and convenient; After installing, bucket tooth can not come off in toothholder, sound construction, reliability height; The rubber centring ring is set in locating slot, has strengthened the friction with locating slot, after pin installed, pin and rubber centring ring can circumferentially not rotate good stability.
Description of drawings
Fig. 1 is the longitudinal profile schematic diagram of embodiment one provided by the invention.
Fig. 2 is the longitudinal sectional view of the toothholder that provides among the embodiment one.
Fig. 3 is the longitudinal sectional view of the bucket tooth that provides among the embodiment one.
Fig. 4 is the sectional view of pin provided by the invention.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the structural representation of centring ring provided by the invention.
Fig. 7 is the horizontal section schematic diagram of embodiment two provided by the invention.
Fig. 8 is the transverse sectional view of the toothholder that provides among the embodiment two.
Fig. 9 is the transverse sectional view of the bucket tooth that provides among the embodiment two.
Among the figure, 1, toothholder; 11, installation portion; 12, installing hole one; 2, bucket tooth; 21, connecting portion; 22, installing hole two; 23, installing hole three; 24, gathering sill; 3, pin; 31, location division; 32, counterbore is installed; 4, locating slot; 5, centring ring; 51, through hole; 52, draw-in groove; 53, corner.
The specific embodiment
Below be specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Embodiment one
As shown in Figure 1, this excavator bucket teeth 2 comprises the toothholder 1 with installation portion 11 and the bucket tooth 2 with connecting portion 21, and installation portion 11 is inserted in the connecting portion 21.As shown in Figure 2, have the installing hole 1 of the setting of connecting on the installation portion 11, as shown in Figure 3, have installing hole 2 22 and the installing hole 3 23 of the setting of connecting on the connecting portion 21, installing hole 2 22 and installing hole 3 23 coaxial settings.In the present embodiment, installing hole 2 22, installing hole 1 and installing hole 3 23 constitute a pin-and-hole that connects, and as shown in Figure 1, are equipped with pin 3 in this pin-and-hole.Concrete, as shown in Figure 4 and Figure 5, the lateral wall of this pin 3 has the location division 31 of radially protruding, as shown in Figure 1, have the gathering sill 24 that matches with this location division 31 on the inside wall of installing hole 2 22, the inner of gathering sill 24 and be located at installation portion 11 and connecting portion 21 between locating slot 4 UNICOMs.For location division 31 can be entered in the locating slot 4, the axial length of locating slot 4 is slightly larger than the axial length of location division 31.
As shown in Figure 1, be provided with rubber centring ring 5 in the locating slot 4, the middle part of rubber centring ring 5 has supply and marketing nail 3 through holes that pass 51, and as shown in Figure 6, the sidewall of through hole 51 has the draw-in groove 52 that is complementary with location division 31.As shown in Figure 6, circumferentially be evenly equipped with 6 corners 53 at centring ring 5.
Locating slot 4 in the present embodiment and the coaxial setting of pin-and-hole, evenly be provided with on the sidewall of locating slot 46 respectively with the arc groove of the corner 53 corresponding settings of centring ring 5.When rubber centring ring 5 was positioned at locating slot 4,6 corners 53 were divided into and are positioned at 6 different arc grooves, and rubber centring ring 5 can circumferentially be positioned in the locating slot 4 under the effect that does not have external force.When pin 3 rotated, corner 53 moved in the adjacent arc groove from one of them arc groove, and the purpose that reaches is to make location division 31 break away from gathering sill 24.
In actual use, quantity that can location division 31 is set to 1-4, and 1-4 location division 31 is evenly distributed in the same plane.
In the present embodiment, as shown in Figure 5, the quantity of location division 31 is 2, and the quantity of corresponding gathering sill 24 is 2 and is oppositely arranged with this location division 31 respectively so with it, and the quantity of draw-in groove 52 is 2 and is oppositely arranged with this location division 31 respectively.
As shown in Figure 4, for convenience pin 3 is carried out rotating operation, be provided with in the end of pin 3 counterbore 32 is installed, the cross section that counterbore 32 is installed is square.
In the present embodiment, as shown in Figure 1, pin-and-hole vertically is located on the bucket tooth 2, and locating slot 4 is located on the installation portion 11.In order to make bucket tooth 2 structures more firm, be provided with groove at the sidepiece of installation portion 11, the edge of connecting portion 21 is provided with the projection that matches with this groove.Groove matches with projection, can prevent that bucket tooth 2 and toothholder 1 from circumferentially rotating, and the service behaviour of bucket tooth 2 is more stable.
When bucket tooth 2 is installed, the installation portion 11 of toothholder 1 is inserted in the connecting portion 21 of bucket tooth 2, makes installing hole 1, installing hole 2 22 and installing hole 3 23 3 holes to it, three holes are inserted into a pin 3 in this pin-and-hole forming pin-and-hole thereafter.Pin 3 is when inserting, location division 31 on the pin 3 and gathering sill 24 are to it, location division 31 moves inwardly into location division 31 along gathering sill 24 and is positioned at locating slot 4, rotate pin 3, make the location division 31 of pin 3 be positioned at locating slot 4, this moment, pin 3 can not move axially, and reached bucket tooth 2 and toothholder 1 purpose of connecting.
During dismounting, rotate pin 3, the location division 31 of pin 3 is turned in the gathering sill 24, move axially pin 3 again, after pin 3 withdrawed from fully, bucket tooth 2 can be separated from each other with toothholder 1.
Embodiment two
The principle of present embodiment is basic identical with the principle of embodiment one, different places are, as shown in Figure 7 and Figure 8, installing hole 1 laterally is located on the installation portion 11, as shown in Figure 9, installing hole 2 22 and installing hole 3 23 laterally wear on the connecting portion 21, and as shown in Figure 9, locating slot 4 is located on the connecting portion 21.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (9)
1. excavator bucket teeth, comprise have installation portion (11) toothholder (1) and have the bucket tooth (2) of connecting portion (21), described installation portion (11) is inserted in the described connecting portion (21), have on the described installation portion (11) and connect the installing hole one (12) that arranges, have on the described connecting portion (21) and connect installing hole two (22) and the installing hole three (23) that arranges, described installing hole two (22) and installing hole three (23) coaxial settings, described installing hole two (22), installing hole one (12) and installing hole three (23) constitute a pin-and-hole that connects, be equipped with pin (3) in the described pin-and-hole, it is characterized in that, the lateral wall of described pin (3) has the location division (31) of radially protruding, has the gathering sill (24) that matches with this location division (31) on the inside wall of described installing hole two (22), the inner of described gathering sill (24) and be located at installation portion (11) and connecting portion (21) between locating slot (4) UNICOM, the axial length of described locating slot (4) is slightly larger than the axial length of described location division (31).
2. a kind of excavator bucket teeth according to claim 1, it is characterized in that, be provided with rubber centring ring (5) in the described locating slot (4), the middle part of described rubber centring ring (5) has the through hole (51) that passes for above-mentioned pin (3), and the sidewall of described through hole (51) has the draw-in groove (52) that is complementary with above-mentioned location division (31).
3. a kind of excavator bucket teeth according to claim 2 is characterized in that, described centring ring (5) circumferentially be evenly equipped with 6 corners (53).
4. a kind of excavator bucket teeth according to claim 3, it is characterized in that, described locating slot (4) and the coaxial setting of above-mentioned pin-and-hole, evenly be provided with on the sidewall of described locating slot (4) 6 respectively with the arc groove of the corresponding setting in corner (53) of above-mentioned centring ring (5).
5. according to claim 2 or 3 or 4 described a kind of excavator bucket teeths, it is characterized in that the quantity of described location division (31) is 1-4, and a described 1-4 location division (31) is evenly distributed in the same plane.
6. a kind of excavator bucket teeth according to claim 5, it is characterized in that, the quantity of described location division (31) is 2, the quantity of described gathering sill (24) is 2 and is oppositely arranged with this location division (31) respectively that the quantity of described draw-in groove (52) is 2 and is oppositely arranged with this location division (31) respectively.
7. according to claim 1 or 2 or 3 or 4 described a kind of excavator bucket teeths, it is characterized in that the end of described pin (3) is provided with installs counterbore (32), the cross section of described installation counterbore (32) is square.
8. according to claim 1 or 2 or 3 or 4 described a kind of excavator bucket teeths, it is characterized in that described pin-and-hole vertically is located on the bucket tooth (2), above-mentioned locating slot (4) is located on the installation portion (11).
9. according to claim 1 or 2 or 3 or 4 described a kind of excavator bucket teeths, it is characterized in that described pin-and-hole laterally is located on the bucket tooth (2), above-mentioned locating slot (4) is located on the connecting portion (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183035.9A CN103243773B (en) | 2013-05-10 | 2013-05-10 | A kind of excavator bucket teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183035.9A CN103243773B (en) | 2013-05-10 | 2013-05-10 | A kind of excavator bucket teeth |
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| Publication Number | Publication Date |
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| CN103243773A true CN103243773A (en) | 2013-08-14 |
| CN103243773B CN103243773B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310183035.9A Active CN103243773B (en) | 2013-05-10 | 2013-05-10 | A kind of excavator bucket teeth |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706438A (en) * | 2013-12-20 | 2014-04-09 | 安徽惊天液压智控股份有限公司 | Special bucket tooth of high-frequency crushing hammer |
| CN103774713A (en) * | 2013-11-26 | 2014-05-07 | 广西柳工机械股份有限公司 | Bucket tooth assembly |
| KR20180021143A (en) * | 2015-06-26 | 2018-02-28 | 콤비 웨어 파츠 아베 | Wear parts system and how to lock wear parts |
| CN108729482A (en) * | 2018-08-20 | 2018-11-02 | 徐工集团工程机械有限公司 | Loosening device pacifically machine |
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| EP1939362A1 (en) * | 2006-12-27 | 2008-07-02 | Caterpillar Work Tools B. V. | Work tool having a releasable tooth |
| CN101558206A (en) * | 2006-09-01 | 2009-10-14 | 麦塔洛吉尼亚股份有限公司 | Prong and fitting for a dredging machine |
| US20100115804A1 (en) * | 2007-03-28 | 2010-05-13 | Metalogenia, S.A. | Detachable fastening system between a male piece and a female piece, pin and female piece |
| CN102653949A (en) * | 2012-04-11 | 2012-09-05 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
| CN203238696U (en) * | 2013-05-10 | 2013-10-16 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
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2013
- 2013-05-10 CN CN201310183035.9A patent/CN103243773B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1926288A (en) * | 2004-03-30 | 2007-03-07 | 梅塔罗格尼亚股份公司 | Detachable apparatus for collecting two mechanical parts |
| CN101558206A (en) * | 2006-09-01 | 2009-10-14 | 麦塔洛吉尼亚股份有限公司 | Prong and fitting for a dredging machine |
| EP1939362A1 (en) * | 2006-12-27 | 2008-07-02 | Caterpillar Work Tools B. V. | Work tool having a releasable tooth |
| US20100115804A1 (en) * | 2007-03-28 | 2010-05-13 | Metalogenia, S.A. | Detachable fastening system between a male piece and a female piece, pin and female piece |
| CN102653949A (en) * | 2012-04-11 | 2012-09-05 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774713A (en) * | 2013-11-26 | 2014-05-07 | 广西柳工机械股份有限公司 | Bucket tooth assembly |
| CN103706438A (en) * | 2013-12-20 | 2014-04-09 | 安徽惊天液压智控股份有限公司 | Special bucket tooth of high-frequency crushing hammer |
| KR20180021143A (en) * | 2015-06-26 | 2018-02-28 | 콤비 웨어 파츠 아베 | Wear parts system and how to lock wear parts |
| CN108350682A (en) * | 2015-06-26 | 2018-07-31 | 康比磨损部件股份有限公司 | Wearing terrain system and method for locking wearing terrain |
| KR102529633B1 (en) * | 2015-06-26 | 2023-05-04 | 콤비 웨어 파츠 아베 | Wear parts system and wear part lockout method |
| CN108729482A (en) * | 2018-08-20 | 2018-11-02 | 徐工集团工程机械有限公司 | Loosening device pacifically machine |
| CN108729482B (en) * | 2018-08-20 | 2023-09-01 | 江苏徐工工程机械研究院有限公司 | Soil loosening device and land leveler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103243773B (en) | 2015-12-30 |
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Effective date of registration: 20231026 Address after: No. 17 Ruilong Road, Lingang Equipment Industrial Park, Xianxiang Town, Xiangshan County, Ningbo City, Zhejiang Province, 315700 (self declared) Patentee after: Lingfeng Mining Machinery (Xiangshan) Co.,Ltd. Address before: 315135, Zhejiang, Ningbo province Yinzhou District Yunlong Town Lotus Bridge Village Patentee before: NINGBO YINZHOU PRECISION CASTING HARDWARE FACTORY |
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