CN203238696U - Excavator bucket tooth - Google Patents
Excavator bucket tooth Download PDFInfo
- Publication number
- CN203238696U CN203238696U CN 201320268253 CN201320268253U CN203238696U CN 203238696 U CN203238696 U CN 203238696U CN 201320268253 CN201320268253 CN 201320268253 CN 201320268253 U CN201320268253 U CN 201320268253U CN 203238696 U CN203238696 U CN 203238696U
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- CN
- China
- Prior art keywords
- pin
- hole
- location division
- excavator bucket
- installing hole
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides an excavator bucket tooth, and belongs to the technical field of machinery. The excavator bucket tooth solves the problems that an existing excavator bucket tooth is inconvenient to install and dismantle and not firm in structure. The excavator bucket tooth comprises a tooth holder with an installation part and a bucket tooth body with a connecting part, wherein the installation part is inserted into the connecting part and provided with a first installation hole which is formed in a penetrated mode, the connecting part is provided with a second installation hole and a third installation hole which are coaxially arranged in a penetrated mode, and the second installation hole, the first installation hole and the third installation hole form a penetrated pin hole; a pin is arranged in the pin hole in a penetrated mode, the outer side wall of the pin is provided with a positioning part protruding in the radial direction, the inner side wall of the second installation hole is provided with a guide groove matched with the positioning part, the inner end of the guide groove is communicated with the positioning groove arranged between the installation part and the connecting part, and the axial length of the positioning groove is slightly larger than that of the positioning part. 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 utility model belongs to field of mechanical technique, relates 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, jump ring grain place diameter is less than the diameter of pin, greatly weakened the whole impact resistance of pin, jump ring on pin grain place 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, pin jump ring grain place is still the book weakness in the practical application, easily fracture, and have situations such as being difficult for replacing after the fracture.
For this reason, the applicant has proposed a kind of excavator bucket teeth [notice of authorization number be: CN202627065U], and it has solved the large 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.
Although 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 and pin-and-hole are tight fit connections, need to 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, clogging pin-and-hole, and easy-clear has not hindered the installation to new bucket tooth, and is uneconomical.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed easily excavator bucket teeth of a kind of reasonable in design, installation and removal.
The purpose of this utility model 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 consist of 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 thereafter pin-and-hole.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 the purpose that bucket tooth is connected with toothholder.
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 large, 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 the embodiment one that provides of the utility model.
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 the pin that provides of the utility model.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the structural representation of the centring ring that provides of the utility model.
Fig. 7 is the horizontal section schematic diagram of the embodiment two that provides of the utility model.
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 embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model 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 consist of 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 the through hole 51 that passes for pin 3, 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 convenient 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 thereafter pin-and-hole.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 the purpose that bucket tooth 2 is connected with toothholder 1.
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 to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model 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 (22) and installing hole three (23) coaxial settings, described installing hole two (22), installing hole one (12) and installing hole three (23) consist of 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 and 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 and 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 and 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 |
|---|---|---|---|
| CN 201320268253 CN203238696U (en) | 2013-05-10 | 2013-05-10 | Excavator bucket tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320268253 CN203238696U (en) | 2013-05-10 | 2013-05-10 | Excavator bucket tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203238696U true CN203238696U (en) | 2013-10-16 |
Family
ID=49316010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320268253 Withdrawn - After Issue CN203238696U (en) | 2013-05-10 | 2013-05-10 | Excavator bucket tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203238696U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243773A (en) * | 2013-05-10 | 2013-08-14 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
| CN103774713A (en) * | 2013-11-26 | 2014-05-07 | 广西柳工机械股份有限公司 | Bucket tooth assembly |
| CN104405008A (en) * | 2014-12-16 | 2015-03-11 | 广西柳工机械股份有限公司 | Bucket tooth assembly |
| CN104452871A (en) * | 2014-11-29 | 2015-03-25 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth of improved structure |
| CN106592681A (en) * | 2017-03-01 | 2017-04-26 | 江苏洛克精密铸造有限公司 | Novel bucket tooth |
-
2013
- 2013-05-10 CN CN 201320268253 patent/CN203238696U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243773A (en) * | 2013-05-10 | 2013-08-14 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
| CN103243773B (en) * | 2013-05-10 | 2015-12-30 | 宁波市鄞州精铸五金厂 | A kind of excavator bucket teeth |
| CN103774713A (en) * | 2013-11-26 | 2014-05-07 | 广西柳工机械股份有限公司 | Bucket tooth assembly |
| CN104452871A (en) * | 2014-11-29 | 2015-03-25 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth of improved structure |
| CN104405008A (en) * | 2014-12-16 | 2015-03-11 | 广西柳工机械股份有限公司 | Bucket tooth assembly |
| CN106592681A (en) * | 2017-03-01 | 2017-04-26 | 江苏洛克精密铸造有限公司 | Novel bucket tooth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131016 Effective date of abandoning: 20151230 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |