CN111794308B - Bucket tooth for excavator - Google Patents
Bucket tooth for excavator Download PDFInfo
- Publication number
- CN111794308B CN111794308B CN202010734493.7A CN202010734493A CN111794308B CN 111794308 B CN111794308 B CN 111794308B CN 202010734493 A CN202010734493 A CN 202010734493A CN 111794308 B CN111794308 B CN 111794308B
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- CN
- China
- Prior art keywords
- hole
- bucket tooth
- tooth
- bulge
- pass
- 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.)
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Links
- 230000000670 limiting effect Effects 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- 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
-
- 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
- E02F9/2841—Retaining means, e.g. pins resilient
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention discloses a bucket tooth for an excavator, which comprises a bucket tooth main body, a tooth seat and a locking mechanism for connecting the bucket tooth main body and the tooth seat, wherein the locking mechanism comprises: the side wall of the plug is provided with a first bulge and a second bulge, and the plug penetrates through the tooth seat through hole and the bucket tooth through hole to lock the relative movement of the bucket tooth main body and the tooth seat; the elastic limiting block is embedded into the bucket tooth main body and is provided with a bolt hole allowing the bolt to pass through, a first convex hole allowing the first bulge to pass through and a second convex hole allowing the second bulge to pass through; when the plug is rotated, the first protrusion is rotated to abut against the rotating groove to limit the radial movement of the plug, and the second protrusion is rotated to abut against the locking hole to limit the axial movement of the plug. Compared with the existing excavator bucket tooth, the excavator bucket tooth is compact in structure, good in locking effect and good in stability.
Description
Technical Field
The invention relates to the technical field of excavators, in particular to a bucket tooth for an excavator.
Background
Excavator teeth are wear parts of an excavator, which generally include a tooth body and a tooth holder connected by a pin. In the tooth currently on the market, the pin is generally directly knocked into the tooth holder to fix the tooth body or the pin is passed through the tooth holder and the tooth body. At present, the bulge is also arranged on the pin, the rotating groove for the bulge to rotate is arranged on the tooth holder, the bulge always rotates on the same plane in the rotating groove, and the bulge is limited by the limiting part on the tooth holder after being in place.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that the bucket tooth for the excavator is poor in plug pin limiting effect, low in stability and the like in the bucket tooth in the prior art.
The invention solves the technical problems and adopts the technical scheme that the bucket tooth for the excavator comprises a bucket tooth main body, a tooth seat and a locking mechanism for connecting the bucket tooth main body and the tooth seat, wherein the head of the bucket tooth main body is inserted into the tooth seat, the head of the tooth seat is penetrated with a tooth seat through hole allowing the locking mechanism to pass through, and the bucket tooth main body is penetrated with a bucket tooth through hole allowing the locking mechanism to pass through;
the locking mechanism includes: the side wall of the plug is provided with a first bulge and a second bulge, and the plug penetrates through the tooth seat through hole and the bucket tooth through hole to lock the relative movement of the bucket tooth main body and the tooth seat; the elastic limiting block is embedded into the bucket tooth main body and is provided with a bolt hole allowing the bolt to pass through, a first convex hole allowing the first bulge to pass through and a second convex hole allowing the second bulge to pass through; the elastic limiting block is also provided with a rotating groove and a locking hole, the rotating groove is adjacent to the first convex hole and the bolt hole, and the locking hole is adjacent to the second convex hole; the tooth seat through hole is adjacent to a through hole for accommodating the first bulge and the second bulge to pass through;
when the plug is rotated, the first protrusion is rotated to abut against the rotating groove to limit the radial movement of the plug, and the second protrusion is rotated to abut against the locking hole to limit the axial movement of the plug.
Preferably, an elastic part is arranged on the elastic limiting block at a position between the second convex hole and the locking hole.
Preferably, the wall thickness of the elastic part is smaller than the wall thickness of other positions of the elastic limiting block.
Preferably, the elastic limiting block is arranged in a hexahedron shape.
Preferably, the bucket tooth main body is provided with a concave which is arranged in a hexahedron shape, and the elastic limiting block is embedded into the concave.
Compared with the prior art, the invention has at least the following beneficial effects:
1. the locking hole is offered on the elastic limiting block in this application, when the second arch is rotated the locking hole, its locking hole can restrict the bellied axial rotation of second, and because the elastic limiting block is the elastic component, after the second arch is rotated the locking hole, the inner wall in locking hole can support the second arch, the second arch can not remove at will in the use of bucket tooth and make bucket tooth main part and toothholder break away from, its locking effect is better, stability is better.
2. The setting rotates the groove, and when rotating the bolt, first arch is rotated the groove to with the inner wall in groove of rotating supports the top, can restrict the radial movement of bolt, make the locking effect of bucket tooth main part and toothholder better, stability is better.
3. The elastic part is arranged at the position between the locking hole and the second convex hole on the elastic limiting block, the wall thickness of the elastic part is smaller than that of other positions of the elastic limiting block, the process that the second bulge rotates from the second convex hole to the locking hole is smoother, smaller force can be used for achieving the process, and the locking force of the locking hole cannot be influenced.
4. The elastic limiting block is arranged in a hexahedral shape, is embedded in the hexahedral recess in the bucket tooth main body, and the side wall of the elastic limiting block abuts against the inner wall of the recess, so that the axial rotation of the elastic limiting block can be limited.
Drawings
Fig. 1 is a schematic diagram of an excavator tooth in an embodiment;
FIG. 2 is a schematic diagram of the structure of a tooth body and a locking mechanism in an embodiment;
FIG. 3 is a schematic view of the structure of a tooth body in an embodiment;
FIG. 4 is a schematic view of a tooth holder according to an embodiment;
FIG. 5 is a schematic structural view of a locking mechanism in an embodiment;
FIG. 6 is a schematic structural view of an elastic stopper according to an embodiment;
FIG. 7 is a schematic view of a latch in an embodiment;
in the figure:
100-tooth holder, 110-tooth holder through holes;
200-bucket tooth main body, 210-bucket tooth through hole and 211-concave;
300-locking mechanism, 310-latch, 311-first boss, 312-second boss, 320-elastic stopper, 321-latch hole, 322-first boss, 323-second boss, 324-rotation groove, 325-elastic portion, 326-locking hole.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1 to 7, the present invention discloses a bucket tooth for an excavator, which includes a bucket tooth main body 200, a tooth holder 100, and a locking mechanism 300 for connecting the bucket tooth main body 200 and the tooth holder 100, wherein the head of the bucket tooth main body 200 is inserted into the tooth holder 100, a tooth holder through hole 110 allowing the locking mechanism 300 to pass through is provided at the head of the tooth holder 100, and a bucket tooth through hole 210 allowing the locking mechanism 300 to pass through is provided at the bucket tooth main body 200;
the locking mechanism 300 includes: a pin 310, the side wall of which is provided with a first protrusion 311 and a second protrusion 312, the pin 310 passes through the tooth holder through hole 110 and the tooth through hole 210 to lock the relative movement of the tooth body 200 and the tooth holder 100; an elastic stopper 320 embedded in the tooth body 200, wherein the elastic stopper 320 is provided with a pin hole 321 allowing the pin 310 to pass through, a first convex hole 322 allowing the first protrusion 311 to pass through, and a second convex hole 323 allowing the second protrusion 312 to pass through; the elastic limiting block 320 is further provided with a rotation groove 324 and a locking hole 326, the rotation groove 324 is adjacent to the first protruding hole 322 and the latch hole 321, and the locking hole 326 is adjacent to the second protruding hole 323; the tooth holder through hole 110 is adjacent to a through hole for accommodating the first protrusion 311 and the second protrusion 312;
when the latch 310 is rotated, the first protrusion 311 is rotated to abut against the rotation groove 324 to restrict the radial movement of the latch 310, and the second protrusion 312 is rotated to abut against the locking hole 326 to restrict the axial movement of the latch 310.
In this embodiment, the locking hole 326 is formed on the elastic limiting block 320, when the second protrusion 312 is rotated to the locking hole 326, the locking hole 326 can limit the axial rotation of the second protrusion 312, and since the elastic limiting block 320 is an elastic member, after the second protrusion 312 is rotated to the locking hole 326, the inner wall of the locking hole 326 can prop against the second protrusion 312, and the second protrusion 312 can not move at will during the use of the tooth to disengage the tooth body 200 from the tooth holder 100, so that the locking effect is better and the stability is better.
Simultaneously still set up rotation groove 324, when rotating bolt 310, first protruding 311 is rotated and is rotated groove 324 to with the inner wall of rotation groove 324 supports the top, can restrict the radial movement of bolt 310, make the locking effect of bucket tooth main part 200 and toothholder 100 better, stability is better.
Preferably, the rotating slot 324 in this embodiment has a start end and an end, the rotating pin 310, the first protrusion 311 enters the rotating slot 324 from the start end, when the second protrusion 312 is completely rotated to the locking slot, the first protrusion 311 just reaches the end of the rotating slot 324 and abuts against the inner wall of the end, so that when the pin 310 has a relative rotation tendency relative to the elastic limiting block 320, not only the locking slot and the second protrusion 312 can limit the rotation of the pin, but also the end of the rotating slot 324 and the first protrusion 311 can limit the rotation of the pin 310.
An elastic portion 325 is disposed on the elastic stopper 320 at a position between the second protruding hole 323 and the locking hole 326.
The wall thickness of the elastic portion 325 is smaller than that of other positions of the elastic stopper 320.
As shown in fig. 2, in this embodiment, a gap is formed between the position of the elastic portion 325 and the tooth body 200, and when the latch 310 is rotated, the elastic portion 325 is lifted by the second protrusion 312 to leave a certain space, so that the locking process is smoother, and the latch 310 can be rotated with a smaller force to further achieve locking.
In another aspect, if the elastic portion 325 is not provided, when the latch 310 is rotated, the second protrusion 312 severely compresses the inner wall of the elastic stopper 320, so that on one hand, a larger force is required to rotate the latch 310, which is not beneficial to the locking operation, and on the other hand, the elastic stopper 320 is also easily damaged in an unrecoverable manner. Therefore, the elastic portion 325 can protect the elastic stopper 320 and prolong the service life thereof.
The elastic limiting block 320 is hexahedral.
The tooth body 200 is provided with a hexahedral recess 211, and the elastic limiting block 320 is embedded in the recess 211.
The elastic limiting block 320 is hexahedral, and is embedded in the hexahedral recess 211 on the tooth main body 200, and the side wall of the elastic limiting block 320 abuts against the inner wall of the recess 211, so that the axial rotation of the elastic limiting block 320 can be limited.
The specific implementation mode and the principle are as follows:
the elastic limiting block 320 is embedded into the tooth body 200, the bolt 310, the first protrusion 311 and the second protrusion 312 pass through the tooth holder 100, the tooth body 200 and the elastic limiting block 320, wherein the second protrusion 312 is firstly positioned at the second protrusion hole 323 after being inserted, then the bolt 310 is rotated to drive the second protrusion 312 to rotate to the locking hole 326 to abut against through the elastic part 325, the locking hole 326 locks the second protrusion 312, and the axial rotation of the bolt 310 is locked; meanwhile, rotating the bolt 310 also drives the first protrusion 311 to rotate to be propped against the rotating groove 324, and the rotating groove 324 can lock the first protrusion 311, so as to realize radial movement between the bolt 310 and the elastic limiting block 320, and finally realize locking of the bucket tooth main body 200 and the tooth holder 100.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The utility model provides a bucket tooth for excavator, includes bucket tooth main part, toothholder and is used for connecting the locking mechanism of bucket tooth main part and toothholder, in the toothholder was inserted to the head of bucket tooth main part, wear to be equipped with the toothholder through-hole that allows locking mechanism to pass through at the toothholder head, wear to be equipped with the bucket tooth through-hole that allows locking mechanism to pass through in the bucket tooth main part, its characterized in that:
the locking mechanism includes: the side wall of the plug is provided with a first bulge and a second bulge, and the plug penetrates through the tooth seat through hole and the bucket tooth through hole to lock the relative movement of the bucket tooth main body and the tooth seat; the elastic limiting block is embedded into the bucket tooth main body and is provided with a bolt hole allowing the bolt to pass through, a first convex hole allowing the first bulge to pass through and a second convex hole allowing the second bulge to pass through; the elastic limiting block is also provided with a rotating groove and a locking hole, the rotating groove is adjacent to the first convex hole and the bolt hole, and the locking hole is adjacent to the second convex hole; the tooth seat through hole is adjacent to a through hole for accommodating the first bulge and the second bulge to pass through;
when the bolt is rotated, the first protrusion is rotated to abut against the rotating groove to limit the radial movement of the bolt, and the second protrusion is rotated to abut against the locking hole to limit the axial movement of the bolt;
an elastic part is arranged on the elastic limiting block and positioned between the second convex hole and the locking hole;
the elastic limiting block is arranged in a hexahedron shape.
2. A tooth for an excavator as claimed in claim 1 wherein the wall thickness of the resilient portion is less than the wall thickness at other locations of the resilient stop.
3. The bucket tooth for an excavator of claim 1 wherein the bucket tooth body defines a recess in the configuration of a hexahedron, the resilient stopper being embedded in the recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010734493.7A CN111794308B (en) | 2020-07-27 | 2020-07-27 | Bucket tooth for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010734493.7A CN111794308B (en) | 2020-07-27 | 2020-07-27 | Bucket tooth for excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111794308A CN111794308A (en) | 2020-10-20 |
| CN111794308B true CN111794308B (en) | 2024-01-16 |
Family
ID=72827397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010734493.7A Active CN111794308B (en) | 2020-07-27 | 2020-07-27 | Bucket tooth for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111794308B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002327471A (en) * | 2001-05-02 | 2002-11-15 | Komatsu Ltd | Bucket tooth and pin, and fastening body for them |
| CN108222115A (en) * | 2017-12-20 | 2018-06-29 | 宁波市鄞州精铸五金厂 | A kind of excavator bucket teeth |
| CN108729497A (en) * | 2018-07-16 | 2018-11-02 | 宁波市鄞州精铸五金厂 | A kind of excavator bucket teeth |
| CN110847276A (en) * | 2019-10-30 | 2020-02-28 | 宁波禾顺新材料有限公司 | Connect limit structure and be used for excavating equipment's wear-resisting subassembly |
| CN212336147U (en) * | 2020-07-27 | 2021-01-12 | 宁波市鄞州精铸五金厂 | Bucket tooth for excavator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8904677B2 (en) * | 2012-07-12 | 2014-12-09 | Kan Cui | Locking pin assembly |
| US9874001B2 (en) * | 2015-12-15 | 2018-01-23 | Pasquale Lombardo | Wedge-based earth-working tooth adapter retention assembly |
-
2020
- 2020-07-27 CN CN202010734493.7A patent/CN111794308B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002327471A (en) * | 2001-05-02 | 2002-11-15 | Komatsu Ltd | Bucket tooth and pin, and fastening body for them |
| CN108222115A (en) * | 2017-12-20 | 2018-06-29 | 宁波市鄞州精铸五金厂 | A kind of excavator bucket teeth |
| CN108729497A (en) * | 2018-07-16 | 2018-11-02 | 宁波市鄞州精铸五金厂 | A kind of excavator bucket teeth |
| CN110847276A (en) * | 2019-10-30 | 2020-02-28 | 宁波禾顺新材料有限公司 | Connect limit structure and be used for excavating equipment's wear-resisting subassembly |
| CN212336147U (en) * | 2020-07-27 | 2021-01-12 | 宁波市鄞州精铸五金厂 | Bucket tooth for excavator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111794308A (en) | 2020-10-20 |
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| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant |