CN203440864U - Combined bucket tooth of excavator - Google Patents
Combined bucket tooth of excavator Download PDFInfo
- Publication number
- CN203440864U CN203440864U CN201320533337.XU CN201320533337U CN203440864U CN 203440864 U CN203440864 U CN 203440864U CN 201320533337 U CN201320533337 U CN 201320533337U CN 203440864 U CN203440864 U CN 203440864U
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- CN
- China
- Prior art keywords
- transition element
- hole
- crown
- bucket tooth
- excavator
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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.)
- Expired - Lifetime
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Abstract
The utility model relates to joint assemblies, in particular to a combined bucket tooth of the excavator. The combined bucket tooth of the excavator solves the problems that the joint structure of an existing bucket tooth is unreasonable, and a tooth top is prone to being lost. The combined bucket tooth of the excavator is characterized in that a joint piece is composed of a transition element and a hinge pin in a combined mode, and the hinge pin is matched with a hole of the transition element; the shape of the transition element is matched with that of a pin hole of the head portion of a tooth holder, and a side wall hole of an inner cavity of a tooth top is matched with the transition element; the hinge pin is provided with a projecting tongue matched with the hole of the transition element, and the hinge pine is inlaid with rubber. The combined bucket tooth is applied to the excavator and has the advantages that the structural design is reasonable, the manufacturing cost is low, the manufacturing technology is simple, and the tooth top is not prone to being lost.
Description
Technical field
The utility model relates to coupling assembly, particularly a kind of excavator bucket tooth assembly used.
Background technology
Excavator bucket teeth is the typical wear parts of excavating equipment.Bucket tooth is serious wear in use, and part replacement is frequent.In order to reduce the cost of bucket tooth, be typically designed to combining structure.As shown in Figure 1, a kind of Combined bucket tooth for digging machine comprises: crown 4, toothholder 3 and connector 1, the inner chamber 8 of crown 4 cooperatively interacts with the head 7 of toothholder 3, and the head 7 of toothholder 3 is provided with the pin-and-hole 9 coordinating with connector 1, is respectively equipped with the areole 5 coordinating with connector 1 on the inner chamber two side of crown 4.The connector 1 of prior art is global facility, after assembling, directly coordinates with crown and toothholder.This just requires all will have reliable quality of fit between crown and toothholder and connector, has increased the manufacturing cost of crown toothholder; This connector is in use constantly stressed loosening simultaneously, causes connecting and loses efficacy, and crown is lost.
Summary of the invention
Object of the present utility model is to overcome the shortcoming of prior art, and a kind of Combined bucket tooth for digging machine is provided, and the draw bail that solves existing crown, toothholder is unreasonable, and long-term use causes crown to lose, or the comparatively harsh problem of creating conditions.
The utility model is achieved through the following technical solutions:
A kind of Combined bucket tooth for digging machine, comprise: crown, toothholder, connector, the inner chamber of described crown and the head of described toothholder cooperatively interact, the head of described toothholder is provided with the pin-and-hole coordinating with connector, on the inner chamber two side of described crown, be respectively equipped with the areole coordinating with connector, it is characterized in that: described connector is combined by transition element and bearing pin, described bearing pin coordinates with the hole of described transition element; The profile of described transition element coordinates with the pin-and-hole of described toothholder head, the areole of described crown inner chamber with described in cross element and coordinate; On described bearing pin, there is the protruding tongue (" tongue " of projection) matching with the hole on described transition element, on described bearing pin, be inlaid with rubber.
The utility model compared with the prior art, because connector adopts combining structure, increased transition element, crucial fit dimension has been transferred to above transition element, reduced the technical difficulty of manufacturing crown and toothholder, meanwhile, due to transition element and bearing pin shape less, can be controlled at the higher grade of tolerance, improve quality of fit.In process, the bearing pin of connector can not rock and lose efficacy because crown is stressed under arms, has avoided the crown Loss in process under arms.
The utility model, for excavator, has reasonable in design, low cost of manufacture, and manufacture craft is easy, and crown is difficult for the advantage of losing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of combination connector;
Fig. 3 is the phantom drawing that cuts open of a kind of Combined bucket tooth for digging machine of fixing.
Below in conjunction with accompanying drawing, by preferred embodiment, the utility model is further described.
The specific embodiment
Shown in Fig. 1,2, a kind of Combined bucket tooth for digging machine, comprise: crown 4, toothholder 3, connector 1, the inner chamber 8 of described crown 4 cooperatively interacts with the head 7 of described toothholder 3, the head 7 of described toothholder 3 is provided with the pin-and-hole 9 coordinating with connector 1, is respectively equipped with the areole 5 coordinating with connector 1 on the inner chamber two side of described crown 4; Described connector 1 is combined by transition element 1-2 and bearing pin 1-1, and described bearing pin 1-1 coordinates with the hole 10 of described transition element 1-2; The profile of described transition element 1-2 coordinates with the pin-and-hole 9 of described toothholder 3 heads 7, the areole 5 of described crown 4 inner chambers 8 with described in cross element 1-2 and coordinate; On described bearing pin 1-1, there is the protruding tongue (" tongue " of projection) 11 matching with the hole 12 on described transition element 1-2, on described bearing pin 1-1, be inlaid with rubber 13, making the connector 1 being comprised of transition element 1-2 and bearing pin 1-1 is elastic construction, has improved anti-shake performance.
The cross section of described transition element 1-2 can be various shape, and optimum is made as circular hole herein.During installation, first transition element 1-2 is put into the hole 9 of toothholder 3, the grade of tolerance herein coordinating is comparatively loose, makes toothholder 3 be easy to manufacture; Then crown 4 is placed on toothholder 3, finally bearing pin 1-1 is inserted; After bearing pin 1-1 puts in place completely, the protruding tongue 11 on it will accurately be embedded in the hole 12 of transition element 1-2, has reached the object that stops crown to come off.
Claims (1)
1. a Combined bucket tooth for digging machine, comprise: crown (4), toothholder (3), connector (1), the inner chamber (8) of described crown (4) cooperatively interacts with the head (7) of described toothholder (3), the head (7) of described toothholder (3) is provided with the pin-and-hole (9) coordinating with connector (1), on the inner chamber two side of described crown (4), be respectively equipped with the areole (5) coordinating with connector (1), it is characterized in that: described connector (1) is combined by transition element (1-2) and bearing pin (1-1), described bearing pin (1-1) coordinates with the hole (10) of described transition element (1-2), the profile of described transition element (1-2) coordinates with the pin-and-hole (9) of described toothholder (3) head (7), and the areole (5) of described crown (4) inner chamber (8) coordinates with described transition element (1-2), on described bearing pin (1-1), there is the protruding tongue (11) matching with the hole (12) on described transition element (1-2), on described bearing pin (1-1), be inlaid with rubber (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533337.XU CN203440864U (en) | 2013-08-29 | 2013-08-29 | Combined bucket tooth of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533337.XU CN203440864U (en) | 2013-08-29 | 2013-08-29 | Combined bucket tooth of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203440864U true CN203440864U (en) | 2014-02-19 |
Family
ID=50091928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320533337.XU Expired - Lifetime CN203440864U (en) | 2013-08-29 | 2013-08-29 | Combined bucket tooth of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203440864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625498A (en) * | 2015-12-18 | 2016-06-01 | 天津市东达伟业机车车辆有限公司 | Bucket tooth and toothholder combined part |
| CN105618228A (en) * | 2014-10-31 | 2016-06-01 | 犹永勤 | Bucket tooth used for high-frequency breaking hammer |
| 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 |
-
2013
- 2013-08-29 CN CN201320533337.XU patent/CN203440864U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618228A (en) * | 2014-10-31 | 2016-06-01 | 犹永勤 | Bucket tooth used for high-frequency breaking hammer |
| CN105625498A (en) * | 2015-12-18 | 2016-06-01 | 天津市东达伟业机车车辆有限公司 | Bucket tooth and toothholder combined part |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |
|
| CX01 | Expiry of patent term |