CN108222115B - Excavator bucket tooth - Google Patents
Excavator bucket tooth Download PDFInfo
- Publication number
- CN108222115B CN108222115B CN201711381108.XA CN201711381108A CN108222115B CN 108222115 B CN108222115 B CN 108222115B CN 201711381108 A CN201711381108 A CN 201711381108A CN 108222115 B CN108222115 B CN 108222115B
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- China
- Prior art keywords
- limiting
- tooth
- bulge
- bucket tooth
- piece
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- 230000000670 limiting effect Effects 0.000 claims description 95
- 230000000694 effects Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
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
Abstract
The invention provides an excavator bucket tooth, comprising: the bucket tooth main body is provided with a cavity with an opening, and the opening of the cavity is positioned at the tail part of the bucket tooth main body; a tooth holder, the head of which can be inserted into the cavity; connect limit structure, including connecting pin spare and the locating part of installing at the toothholder head, connecting pin spare can pass bucket tooth main part and toothholder head and link together the two, it is protruding to be equipped with pin spare on the outer wall of connecting pin spare one end, be equipped with the rotation recess in the toothholder head outside, and be equipped with limit position on rotating the recess, it is sheltered from by the cavity inner wall of bucket tooth main part to rotate the recess, the locating part is located near limit position, when connecting pin spare is connected, but pin spare arch is located and rotates the recess circumferentially, the pin spare arch is changeed over to limit position after, it is spacing by the locating part, the locating part is used for circumference limit connection pin spare, the part that the bucket tooth main part sheltered from the rotation recess is used for axial. This excavator bucket tooth has bucket tooth main part and the spacing more reliable advantage of toothholder connection.
Description
Technical Field
The invention belongs to the technical field of bucket teeth and relates to an excavator bucket tooth.
Background
Excavator teeth are wear parts of excavators, which generally include a tooth body and a tooth holder connected by a pin. In the prior art, the pin piece is generally directly knocked into the tooth holder to fix the bucket tooth main body, or the pin piece penetrates through the tooth holder and the bucket tooth main body, and a corresponding limiting structure is arranged on the bucket tooth, for example, a limiting protrusion is arranged on the tooth holder, and a corresponding limiting groove is arranged on the pin piece in a digging manner. Therefore, the excavator bucket tooth is more convenient to install and more reliable in connection limiting.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an excavator bucket tooth which is compact in layout and more reliable in connection and limit of a bucket tooth main body and a tooth holder.
The purpose of the invention can be realized by the following technical scheme: an excavator tooth comprising:
the bucket tooth main body is provided with a cavity with an opening, and the opening of the cavity is positioned at the tail part of the bucket tooth main body;
a tooth holder, the head of which can be inserted into the cavity;
connect limit structure for connect bucket tooth main part and toothholder, connect limit structure and include connecting pin spare and install the locating part at the toothholder head, connecting pin spare can pass bucket tooth main part and toothholder head and link together the two, it is protruding to be equipped with pin spare on connecting pin spare one end outer wall, is equipped with the rotation recess in the toothholder head outside to be equipped with limiting position on rotating the recess, it is sheltered from by the cavity inner wall of bucket tooth main part to rotate the recess, the locating part is located near limiting position, when connecting pin spare connects, but pin spare arch is located and rotates the recess and circumferential direction, the pin spare arch changes over to spacing position back is spacing by the locating part, the locating part is used for circumference limiting connection pin spare, the part that the bucket tooth main part sheltered from rotating the recess is used for axial limiting connection pin spare.
As a further improvement of the invention, the limiting piece is provided with an elastic limiting bulge, the limiting bulge extends into the rotating groove and is arranged at an entrance of the limiting position, the limiting bulge can be pulled away and enters the limiting position when the pin piece bulge rotates in place, and after the pin piece bulge passes through, the limiting bulge resets under the action of self resilience force and circumferentially limits the pin piece bulge in the limiting position.
As a further improvement of the invention, the outer side surface of the pin part bulge, which is contacted with the limiting bulge, is an arc-shaped surface, and the outer side surface of the limiting bulge is a guide arc-shaped surface structure matched with the arc-shaped surface of the pin part bulge.
As a further improvement of the invention, the width of the limiting bulge decreases progressively when viewed from the outside of the rotating groove to the inside of the rotating groove.
As a further improvement of the invention, at least one side of the bucket tooth main body is provided with a connecting port for a connecting pin to pass through, the connecting port is provided with a bulge inlet for a pin bulge to pass through, and the corresponding outer side of the tooth holder head is provided with the rotating groove.
As a further improvement of the invention, connecting ports for the connecting pin to pass through are arranged on both sides of the bucket tooth main body, and corresponding rotating grooves are arranged on both sides of the tooth holder head.
As a further improvement of the invention, a limiting groove matched with the rotating groove is arranged on the outer side of the head of the tooth holder, and the limiting piece is tightly embedded in the limiting groove.
As a further improvement of the present invention, the limiting member is integrally provided with a resilient structure.
As a further improvement of the invention, the pin projection and the connecting pin are integrally connected.
As a further improvement of the invention, the end of the connecting pin piece far away from the pin piece bulge is provided with an adjusting hole.
Based on the technical scheme, the embodiment of the invention can at least produce the following technical effects: the excavator bucket tooth has compact overall structure layout, during installation, the bucket tooth main body is sleeved in the head of the tooth holder, the connecting pin piece with the pin piece protrusion penetrates through the bucket tooth main body and the head of the tooth holder until the pin piece protrusion enters the rotating groove, the connecting pin piece is rotated to enable the pin piece protrusion to enter the limiting position and be limited by the limiting piece, and circumferential limiting is realized during installation of the connecting pin piece, the rotating groove is positioned in the cavity and is shielded by the bucket tooth main body, so that the bucket tooth main body shields the part of the rotating groove and is matched with the bottom of the rotating groove, the axial limit of the connecting pin piece is realized, the pin piece bulge of the connecting pin piece can only realize circumferential rotation when moving in the rotating groove, particularly, after the bucket tooth is moved to the limiting position, the dual limiting of the circumferential direction and the axial direction is realized, so that the bucket tooth main body and the tooth holder are more reliably connected and limited, and the axial movement of the connecting pin piece is also avoided.
Drawings
Embodiments of the invention are described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
FIG. 2 is a partial schematic structural diagram of a preferred embodiment of the present invention.
Fig. 3 is a schematic structural view of a tooth holder according to a preferred embodiment of the invention.
FIG. 4 is a schematic structural view of a tooth body according to a preferred embodiment of the present invention.
FIG. 5 is a schematic view of the connecting pin member in accordance with a preferred embodiment of the present invention.
In the figure, 10, a bucket tooth body; 11. a cavity; 12. a connecting port; 121. a boss inlet; 20. a tooth holder; 21. rotating the groove; 211. limiting the position; 22. a limiting groove; 30. a connecting pin member; 31. the pin member is raised; 40. a limiting member; 41. and a limiting bulge.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 5.
As shown in fig. 1 to 5, the excavator tooth includes:
the bucket tooth comprises a bucket tooth body 10, a bucket tooth body and a bucket tooth, wherein the bucket tooth body 10 is provided with a cavity 11 with an opening, and the opening of the cavity 11 is positioned at the tail part of the bucket tooth body 10;
a tooth holder 20, the head of which can be inserted into the cavity 11;
the connecting and limiting structure is used for connecting the bucket tooth main body 10 and the tooth holder 20, the connecting and limiting structure comprises a connecting pin piece 30 and a limiting piece 40 arranged at the head of the tooth holder 20, the connecting pin member 30 can penetrate through the head parts of the bucket tooth body 10 and the tooth holder 20 and connect the two together, a pin member protrusion 31 is arranged on the outer wall of one end of the connecting pin member 30, a rotary groove 21 is arranged at the outer side of the head part of the tooth holder 20, a limit position 211 is arranged on the rotary groove 21, the rotating groove 21 is blocked by the inner wall of the cavity 11 of the tooth body 10, the position limiting member 40 is located near the position limiting position 211, when the connecting pin member 30 is connected, the pin member projection 31 is located in the rotation groove 21 and can be rotated in the circumferential direction, the pin boss 31 is rotated to the limit position 211 and then limited by a limiting member 40, the limiting member 40 is used for circumferentially limiting and connecting the pin 30, the tooth body 10 shields the portion of the rotation groove 21 for axially restraining the connecting pin member 30.
In the invention, in order to ensure that the in-place rotating effect of the connecting pin piece 30 can be known more directly, the limiting position 211 is arranged at the end part of the rotating groove 21 or at a position close to the end part, and the connecting pin piece 30 can be induced to be contacted with the end point of the groove after arriving, so that the installation is more convenient, and the limiting effect is also ensured.
In order to ensure the structural strength and the stability of the movement of the connecting pin member 30, it is preferable that the pin member protrusion 31 and the connecting pin member 30 are integrally connected, and the connecting pin member 30 is not exposed to the outside of the tooth main body 10 or is slightly exposed after the insertion.
The invention protects the excavator bucket tooth, the overall structure layout is compact, during installation, the bucket tooth main body 10 is sleeved in the head of the tooth holder 20, the connecting pin piece 30 with the pin piece bulge 31 penetrates through the bucket tooth main body 10 and the head of the tooth holder 20 until the pin piece bulge 31 enters the rotating groove 21, the connecting pin piece 30 is rotated to enable the pin piece bulge 31 to enter the limiting position 211 and be limited by the limiting piece 40, at the moment, the installation of the connecting pin piece 30 realizes circumferential limiting, and because the rotating groove 21 is positioned in the cavity 11 and is shielded by the bucket tooth main body 10, the part of the bucket tooth main body 10 shielding the rotating groove 21 is matched with the bottom of the rotating groove 21, so that the axial limiting of the connecting pin piece 30 is realized, the pin piece bulge 31 of the connecting pin piece 30 can only realize circumferential rotation when moving in the rotating groove 21, particularly after moving to the limiting position 211, the circumferential and axial double limiting is realized, the connection limit between the bucket tooth main body 10 and the tooth holder 20 is more reliable, and the axial movement of the connecting pin piece 30 is avoided.
Further, it is preferable that the limiting member 40 is provided with an elastic limiting protrusion 41, the limiting protrusion 41 in the present invention is preferably made of an elastic material such as a rubber material, the limiting protrusion 41 extends into the rotation groove 21 and is disposed at an entrance of the limiting position 211, the limiting protrusion 41 can be pulled away and enter the limiting position 211 when the pin member protrusion 31 rotates in place, after the pin member protrusion 31 passes through, the limiting protrusion 41 resets under the effect of its own resilience force and circumferentially limits the pin member protrusion 31 in the limiting position 211, the elastic limiting protrusion 41 further has a further pressing effect on the pin member protrusion 31 after the pin member protrusion 31 enters the limiting position 211, and has a friction fit effect, so that it is not easy to withdraw, and also has a shock absorption effect.
According to the structural layout, the connecting pin piece 30 with the bulge is tightly matched with the limiting piece 40 with the bulge, so that the limiting is more reliable, the installation is more convenient, the parts are not easy to wear, and the pin piece bulge 31 can be in one-way irreversible when entering the limiting position 211, namely, the limiting bulge 41 is set to be in a one-way structure, so that the self-locking effect is achieved; it is also preferable that the reversing pin member protrusion 31 can be pulled out of the stopper protrusion 41 again and withdrawn from the stopper position 211, ensuring convenience of maintenance and removal.
As a preferred or optional implementation mode, in order to further avoid wearing and tearing, avoid blocking, and do not influence the spacing effect of circumference, the lateral surface that the protruding 31 of round pin spare and spacing arch 41 contact sets up to the arcwall face, the lateral surface of spacing arch 41 sets up to the direction cambered surface structure with the protruding 31 arcwall face adaptation of round pin spare, and such structural setting can also improve bucket tooth life.
By rotating recess 21 outside and looking to the inside direction of rotation recess 21, spacing protruding 41's width diminishes progressively, the narrower structural layout of head like this for spacing protruding 41 is more quick, reliable to the protruding 31 of round pin spare is dialled away, and spacing protruding 41 resumes also relatively fast moreover, and spacing protruding 41's structural strength can also be guaranteed to the rear broad, avoids tearing or rupture, guarantees the compactness of connecting.
In order to facilitate the insertion of the connecting pin member 30, preferably, at least one side of the tooth body 10 is provided with a connecting port 12 for the connecting pin member 30 to pass through, the connecting port 12 is communicated with the cavity 11, the connecting port 12 is provided with a protrusion inlet 121 for the protrusion 31 of the pin member to pass through, the corresponding outer side of the head of the tooth holder 20 is provided with the rotating groove 21, and except the position of the protrusion inlet 121, the rest of the rotating groove 21 is shielded by the tooth body 10 and has an axial limiting effect.
Further, for making the installation more nimble, all be equipped with the connector 12 that supplies connecting pin piece 30 to pass in bucket tooth main part 10 both sides, all be equipped with corresponding rotation recess 21 in toothholder 20 head both sides, take bellied connecting pin piece 30 like this to select which side to insert all can, the practicality is strong.
In order to ensure the reliability of installation and butt joint, it is preferable that a limiting groove 22 adapted to the rotating groove 21 is provided at the outer side of the head of the toothholder 20, the limiting member 40 is closely embedded in the limiting groove 22, the limiting groove 22 is communicated with the rotating groove 21, and the limiting protrusion 41 extends into the rotating groove 21 through the connecting position.
In order to ensure the reliability of the operation, the limiting member 40 is integrally configured to have a resilient structure, i.e., the main body portion of the limiting member 40 and the limiting protrusion 41 are integrated.
Furthermore, one end, far away from the protruding 31 of round pin spare, of connecting pin spare 30 is equipped with the regulation hole, makes things convenient for connecting pin spare 30 to drive connecting pin spare 30 through tools such as outside screwdriver and rotate after inserting, and then realizes spacingly.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. An excavator tooth comprising:
the bucket tooth main body is provided with a cavity with an opening, and the opening of the cavity is positioned at the tail part of the bucket tooth main body;
a tooth holder, the head of which can be inserted into the cavity;
connect limit structure for connect bucket tooth main part and toothholder, its characterized in that: the connecting and limiting structure comprises a connecting pin piece and a limiting piece arranged at the head part of the tooth holder, the connecting pin piece can penetrate through the bucket tooth main body and the head part of the tooth holder and connect the bucket tooth main body and the head part of the tooth holder together, a pin piece bulge is arranged on the outer wall of one end of the connecting pin piece, a rotating groove is arranged on the outer side of the head part of the tooth holder, a limiting position is arranged on the rotating groove, the rotating groove is shielded by the inner wall of the cavity of the bucket tooth main body, the limiting piece is positioned near the limiting position, when the connecting pin piece is connected, the pin piece bulge is positioned in the rotating groove and can rotate circumferentially, the pin piece bulge is limited by the limiting piece after the limiting position, the limiting piece is used for circumferentially rotating the connecting pin piece in a rotating manner;
the limiting part is provided with an elastic limiting bulge, the limiting bulge extends into the rotating groove and is arranged at an inlet of a limiting position, when the pin part bulge rotates in place, the limiting bulge can be pulled away and enters the limiting position, and after the pin part bulge passes through, the limiting bulge resets under the action of self resilience force and circumferentially limits the pin part bulge in the limiting position;
the outer side surface of the pin part protrusion, which is in contact with the limiting protrusion, is an arc-shaped surface, and the outer side surface of the limiting protrusion is a guide arc-shaped surface structure matched with the arc-shaped surface of the pin part protrusion;
and when the rotating groove is viewed from the outside to the inside, the width of the limiting bulge is gradually reduced.
2. The excavator tooth of claim 1, wherein: at least one side of the bucket tooth main body is provided with a connecting port for a connecting pin piece to pass through, the connecting port is provided with a protruding inlet for the pin piece to protrude through, and the corresponding outer side of the tooth holder head is provided with the rotating groove.
3. The excavator tooth of claim 2, wherein: both sides of the bucket tooth main body are provided with connectors for the connecting pin pieces to pass through, and both sides of the head of the tooth holder are provided with corresponding rotating grooves.
4. The excavator tooth of claim 1, wherein: and a limiting groove matched with the rotating groove is formed in the outer side of the head of the tooth holder, and the limiting part is tightly embedded in the limiting groove.
5. The excavator tooth of claim 1, wherein: the limiting part is integrally arranged to be of an elastic structure.
6. The excavator tooth of claim 1, wherein: the pin piece bulge and the connecting pin piece are connected into a whole.
7. The excavator tooth of claim 1, wherein: and one end of the connecting pin piece, which is far away from the protrusion of the pin piece, is provided with an adjusting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711381108.XA CN108222115B (en) | 2017-12-20 | 2017-12-20 | Excavator bucket tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711381108.XA CN108222115B (en) | 2017-12-20 | 2017-12-20 | Excavator bucket tooth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108222115A CN108222115A (en) | 2018-06-29 |
| CN108222115B true CN108222115B (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711381108.XA Active CN108222115B (en) | 2017-12-20 | 2017-12-20 | Excavator bucket tooth |
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| Country | Link |
|---|---|
| CN (1) | CN108222115B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729497A (en) * | 2018-07-16 | 2018-11-02 | 宁波市鄞州精铸五金厂 | A kind of excavator bucket teeth |
| CN109826275A (en) * | 2019-03-04 | 2019-05-31 | 宁波禾顺新材料有限公司 | A kind of connector and the wear parts for excavating equipment |
| CN111794307B (en) * | 2020-07-27 | 2024-01-16 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
| CN111794308B (en) * | 2020-07-27 | 2024-01-16 | 宁波市鄞州精铸五金厂 | Bucket tooth for excavator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5709043A (en) * | 1995-12-11 | 1998-01-20 | Esco Corporation | Excavating tooth |
| JP3181586U (en) * | 2012-12-01 | 2013-02-14 | 博 岡本 | Detachable structure of the tooth for bucket |
| CN205314154U (en) * | 2016-01-07 | 2016-06-15 | 宁波市鄞州精铸五金厂 | Improved generation excavator bucket tooth |
| CN105484313A (en) * | 2016-01-07 | 2016-04-13 | 宁波市鄞州精铸五金厂 | Improved excavator bucket tooth |
| CN205857281U (en) * | 2016-07-21 | 2017-01-04 | 应国斌 | A kind of assembling structure of bucket tooth and toothholder |
-
2017
- 2017-12-20 CN CN201711381108.XA patent/CN108222115B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108222115A (en) | 2018-06-29 |
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Effective date of registration: 20231013 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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