CN111794308A - Bucket tooth for excavator - Google Patents
Bucket tooth for excavator Download PDFInfo
- Publication number
- CN111794308A CN111794308A CN202010734493.7A CN202010734493A CN111794308A CN 111794308 A CN111794308 A CN 111794308A CN 202010734493 A CN202010734493 A CN 202010734493A CN 111794308 A CN111794308 A CN 111794308A
- Authority
- CN
- China
- Prior art keywords
- hole
- bolt
- tooth
- bucket tooth
- protrusion
- 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.)
- Granted
Links
- 230000000670 limiting effect Effects 0.000 claims abstract description 41
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 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
-
- 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 holder and a locking mechanism for connecting the bucket tooth main body and the tooth holder, wherein the locking mechanism comprises: the side wall of the bolt is provided with a first bulge and a second bulge, and the bolt penetrates through the tooth holder through hole and the bucket tooth through hole to lock the relative movement of the bucket tooth main body and the tooth holder; 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 protrusion to pass through and a second convex hole allowing the second protrusion to pass through; when the bolt is rotated, the first protrusion is rotated to abut against the rotating groove to limit radial movement of the bolt, and the second protrusion is rotated to abut against the locking hole to limit axial movement of the bolt. This application compares in current excavator bucket tooth structure compacter, the locking effect is better and stability is better.
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 excavators, which generally include a tooth body and a tooth holder connected by a pin. In the bucket teeth on the market at present, a pin piece is generally directly knocked into a tooth holder to fix a bucket tooth main body or the pin piece penetrates through the tooth holder and the bucket tooth main body. Also there is the design at present to set up the arch on the round pin spare, set up on the toothholder and supply protruding pivoted rotation recess, the arch rotates on the coplanar all the time in rotating the recess, it is spacing through the locating part on the toothholder to target in place the back, such structural design compares earlier the spacing installation effect of round pin spare better, but still there is the bucket tooth in-process, the arch of round pin spare probably withdraws from the limiting position and appears rotating in rotating the recess the condition, the bucket tooth main part just can relax with the toothholder connection like this, can increase adjustment and maintenance cost.
Disclosure of Invention
In view of the above disadvantages in the prior art, the present invention provides a bucket tooth for an excavator, which is used for solving the problems of poor pin limiting effect, low stability and the like in the bucket tooth in the prior art.
The invention solves the technical problem and adopts the technical scheme that the bucket tooth for the excavator comprises a bucket tooth main body, a tooth holder and a locking mechanism for connecting the bucket tooth main body and the tooth holder, wherein the head part of the bucket tooth main body is inserted into the tooth holder, a tooth holder through hole allowing the locking mechanism to pass through is arranged at the head part of the tooth holder in a penetrating manner, and a bucket tooth through hole allowing the locking mechanism to pass through is arranged on the bucket tooth main body in a penetrating manner;
the locking mechanism includes: the side wall of the bolt is provided with a first bulge and a second bulge, and the bolt penetrates through the tooth holder through hole and the bucket tooth through hole to lock the relative movement of the bucket tooth main body and the tooth holder; 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 protrusion to pass through and a second convex hole allowing the second protrusion to pass through; the elastic limiting block is further 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 holder 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 radial movement of the bolt, and the second protrusion is rotated to abut against the locking hole to limit axial movement of the bolt.
Preferably, an elastic part is arranged on the elastic limiting block 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 part is provided with a recess which is arranged in a hexahedron, and the elastic limiting block is embedded into the recess.
Compared with the prior art, the invention has at least the following beneficial effects:
1. offer the locking hole in this application on the elastic limiting block, when the second arch is rotated the locking hole, its locking hole can restrict the bellied axial of second and rotate, and because the elastic limiting block is the elastic component, after the second arch is rotated to 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 break away from with the toothholder, its locking effect is better, stability is better.
2. Set up and rotate the groove, when rotating the bolt, first arch is changeed and is rotated the groove to support with the inner wall that rotates the groove, can restrict the radial movement of bolt, make the locking effect of bucket tooth main part and toothholder better, stability is better.
3. Be in on the elastic limiting block locking hole with the position is equipped with the elasticity portion between the second bulge, and the wall thickness of elasticity portion will be less than the wall thickness of other positions of elastic limiting block, can make the protruding process of rotating the locking hole from the second bulge of second more smooth and easy, can use littleer power just to accomplish more, and can not influence the locking dynamics in locking hole.
4. The elastic limiting block is arranged in a hexahedron and is embedded into the hexahedron on of 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 structural view of an excavator tooth in an embodiment;
FIG. 2 is a schematic structural diagram of a tooth body and a locking mechanism according to an embodiment;
FIG. 3 is a schematic structural view of a tooth body according to an embodiment;
FIG. 4 is a schematic structural view of a tooth holder in the embodiment;
FIG. 5 is a schematic structural view of a lock mechanism in the embodiment;
FIG. 6 is a schematic structural view of an embodiment of an elastic limiting block;
FIG. 7 is a schematic structural diagram of a plug according to an embodiment;
in the figure:
100-toothholder, 110-toothholder through hole;
200-bucket tooth main body, 210-bucket tooth through hole and 211-recess;
300-locking mechanism, 310-bolt, 311-first protrusion, 312-second protrusion, 320-elastic limiting block, 321-bolt hole, 322-first convex hole, 323-second convex hole, 324-rotating groove, 325-elastic part and 326-locking hole.
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.
Referring to fig. 1 to 7, the present invention discloses a tooth for an excavator, including a tooth body 200, a tooth holder 100, and a locking mechanism 300 for connecting the tooth body 200 and the tooth holder 100, wherein a head of the tooth body 200 is inserted into the tooth holder 100, a tooth holder through hole 110 for allowing the locking mechanism 300 to pass through is formed at the head of the tooth holder 100, and a tooth through hole 210 for allowing the locking mechanism 300 to pass through is formed at the tooth body 200;
the lock mechanism 300 includes: a latch 310 having a first protrusion 311 and a second protrusion 312 on a sidewall thereof, wherein the latch 310 passes through the tooth holder through hole 110 and the tooth through hole 210 to lock the relative movement between the tooth body 200 and the tooth holder 100; an elastic stopper 320 fitted into the tooth body 200, the elastic stopper 320 having a bolt hole 321 allowing the bolt 310 to pass therethrough, a first protrusion hole 322 allowing the first protrusion 311 to pass therethrough, and a second protrusion hole 323 allowing the second protrusion 312 to pass therethrough; the elastic limiting block 320 is further provided with a rotating groove 324 and a locking hole 326, the rotating 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 through hole for the tooth holder 110 is adjacent to a through hole for the first protrusion 311 and the second protrusion 312 to pass through;
when the bolt 310 is rotated, the first protrusion 311 is rotated against the rotation slot 324 to limit radial movement of the bolt 310, and the second protrusion 312 is rotated against the lock hole 326 to limit axial movement of the bolt 310.
In this embodiment, the elastic limiting block 320 is provided with the locking hole 326, 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 because the elastic limiting block 320 is an elastic member, when the second protrusion 312 is rotated to the locking hole 326, the inner wall of the locking hole 326 can abut against the second protrusion 312, the second protrusion 312 cannot move freely in the use process of the bucket tooth, so that the bucket tooth main body 200 is separated from the tooth holder 100, the locking effect is better, and the stability is better.
Meanwhile, the rotating groove 324 is also formed, when the bolt 310 is rotated, the first protrusion 311 is rotated to the rotating groove 324 and abuts against the inner wall of the rotating groove 324, and the radial movement of the bolt 310 can be limited, so that the locking effect of the bucket tooth body 200 and the tooth holder 100 is better, and the stability is better.
Preferably, in this embodiment, the rotation slot 324 has a beginning and an end, the latch 310 is rotated, the first protrusion 311 enters the rotation slot 324 from the beginning, and when the second protrusion 312 is completely rotated to the locking slot, the first protrusion 311 just reaches the end of the rotation slot 324 and abuts against the inner wall of the end, so that when the latch 310 has a tendency to rotate relative to the elastic limiting block 320, not only the locking slot and the second protrusion 312 can limit the rotation, but also the end of the rotation slot 324 and the first protrusion 311 can play a role in limiting the rotation of the latch 310.
An elastic portion 325 is disposed on the elastic stopper 320 between the second protrusion hole 323 and the locking hole 326.
The wall thickness of the elastic portion 325 is smaller than the wall thickness of the other positions of the elastic limiting block 320.
As shown in fig. 2, in the present embodiment, a gap is formed between the position of the elastic portion 325 and the tooth body 200, and when the bolt 310 is rotated, the gap enables the elastic portion 325 to be jacked up by the second protrusion 312 to leave a certain reserved space, so that the locking process is smoother, and the bolt 310 can be rotated with a smaller force to achieve locking.
On the other hand, if the elastic portion 325 is not provided, when the latch 310 is rotated, the second protrusion 312 may severely compress the inner wall of the elastic limiting block 320, on one hand, a larger force is required to rotate the latch 310, which is not beneficial to the locking action, and on the other hand, the elastic limiting block 320 may be easily damaged without recovery. Therefore, the elastic portion 325 can protect the elastic limiting block 320, and the service life of the elastic limiting block is prolonged.
The elastic limiting block 320 is hexahedron.
The bucket tooth main body 200 is provided with a recess 211 arranged in a hexahedron, and the elastic limiting block 320 is embedded into the recess 211.
The elastic limiting block 320 is hexahedron and is embedded into the hexahedron recess 211 of the bucket tooth main body 200, and the side wall of the elastic limiting block 320 is abutted against the inner wall of the recess 211 to limit the axial rotation of the elastic limiting block 320.
The specific implementation and principle are as follows:
the elastic limiting block 320 is embedded into the bucket tooth main body 200, the bolt 310, the first protrusion 311 and the second protrusion 312 penetrate through the tooth holder 100, the bucket tooth main body 200 and the elastic limiting block 320, after the second protrusion 312 is inserted, the second protrusion is firstly positioned at the second convex hole 323, then the bolt 310 is rotated to drive the second protrusion 312 to rotate through the elastic part 325 until the locking hole 326 is abutted, the locking hole 326 locks the second protrusion 312, and further the axial rotation of the bolt 310 is locked; meanwhile, the rotating bolt 310 also drives the first protrusion 311 to be rotated to abut against the rotating groove 324, and the rotating groove 324 can lock the first protrusion 311, so that the radial movement between the bolt 310 and the elastic limiting block 320 is realized, and finally the bucket tooth body 200 and the tooth holder 100 are locked.
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 (5)
1. The utility model provides a bucket tooth for excavator, includes bucket tooth main part, toothholder and is used for connecting the locking mechanical system of bucket tooth main part and toothholder, in the head of bucket tooth main part inserts the toothholder, wear to be equipped with the toothholder through-hole that allows locking mechanical system to pass through at the toothholder head, wear to be equipped with the bucket tooth through-hole that allows locking mechanical system to pass through in the bucket tooth main part, its characterized in that:
the locking mechanism includes: the side wall of the bolt is provided with a first bulge and a second bulge, and the bolt penetrates through the tooth holder through hole and the bucket tooth through hole to lock the relative movement of the bucket tooth main body and the tooth holder; 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 protrusion to pass through and a second convex hole allowing the second protrusion to pass through; the elastic limiting block is further 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 holder 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 radial movement of the bolt, and the second protrusion is rotated to abut against the locking hole to limit axial movement of the bolt.
2. The tooth for an excavator according to claim 1, wherein an elastic portion is provided on the elastic stopper at a position between the second protruding hole and the locking hole.
3. The tooth for an excavator according to claim 2, wherein the wall thickness of the elastic part is smaller than the wall thickness of the elastic limiting block at other positions.
4. The tooth for an excavator according to claim 1, wherein the elastic limiting block is arranged in a hexahedron shape.
5. The bucket tooth for an excavator according to claim 4, wherein the bucket tooth body is provided with a recess which is hexahedron-shaped, and the elastic limiting block is embedded into 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 true CN111794308A (en) | 2020-10-20 |
| CN111794308B 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 (7)
| 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 |
| US20140013635A1 (en) * | 2012-07-12 | 2014-01-16 | Kan Cui | Locking pin assembly |
| US20170167118A1 (en) * | 2015-12-15 | 2017-06-15 | Pasquale Lombardo | Universal Hammerless Pin And Retention Assemblies |
| 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 |
-
2020
- 2020-07-27 CN CN202010734493.7A patent/CN111794308B/en active Active
Patent Citations (7)
| 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 |
| US20140013635A1 (en) * | 2012-07-12 | 2014-01-16 | Kan Cui | Locking pin assembly |
| US20170167118A1 (en) * | 2015-12-15 | 2017-06-15 | Pasquale Lombardo | Universal Hammerless Pin And Retention Assemblies |
| 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 |
|---|---|
| CN111794308B (en) | 2024-01-16 |
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