CN202214757U - Match structure of tooth seat and bucket tooth - Google Patents
Match structure of tooth seat and bucket tooth Download PDFInfo
- Publication number
- CN202214757U CN202214757U CN2011202832540U CN201120283254U CN202214757U CN 202214757 U CN202214757 U CN 202214757U CN 2011202832540 U CN2011202832540 U CN 2011202832540U CN 201120283254 U CN201120283254 U CN 201120283254U CN 202214757 U CN202214757 U CN 202214757U
- Authority
- CN
- China
- Prior art keywords
- pin
- bucket tooth
- toothholder
- circular
- pair
- 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.)
- Expired - Fee Related
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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
- E02F9/2816—Mountings therefor
- E02F9/2833—Retaining means, e.g. pins
- E02F9/2841—Retaining means, e.g. pins resilient
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- 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 utility model discloses a match structure of a tooth seat and a bucket tooth, which comprises a tooth seat and a bucket tooth. The tooth seat comprises a tooth seat head, the bucket tooth comprises a bucket tooth cavity body, the bucket tooth cavity body comprises a cavity wall, the bucket tooth is connected with the tooth seat head, the bucket tooth cavity body can accommodate the tooth seat head, and a locking part is arranged between the tooth seat and the bucket tooth. The locking part comprises a cylindrical pin hole and a pin which are horizontally penetrate through two sides of the tooth seat head and cavity walls on the two sides of the bucket tooth cavity body, the pin penetrates through the pin hole, the pin hole comprises a circular location hole which is arranged on one side of the tooth seat head, the radius of the location hole is larger than that of the pin hole, and the section of the location hole is concentric with the section of the pin hole. The match structure has the advantages of being stable in connection structure between the tooth seat and the bucket tooth, improving efficiency of inserting and pulling out the pin, improving working efficiency of assembling and disassembling the bucket tooth, and being simple in structure and convenient to manufacture.
Description
Technical field
The utility model relates to the fit structure of excavator field mechanical device, the fit structure of especially a kind of toothholder and bucket tooth.
Background technology
The toothholder on the power shovel and the fit structure of bucket tooth mainly receive in operation process axially, vertically, the side direction twisting resistance and the impact force that cause, the fit structure requirement of toothholder and bucket tooth has advantages of higher stability, enough combined strength and property easy to assemble.The fit structure of existing toothholder and bucket tooth normally is inserted and secured in the pin-and-hole that runs through bucket tooth, toothholder through pin.Known pin and circular rings and rubber ring are used; A groove is arranged on the pin, and the somewhat larger in diameter of pin places circular jump ring and rubber ring composite member in the stepped hole of toothholder one side in the diameter of circular rings endoporus; Pin passes pin-and-hole; The frictional force that relies on circular rings and pin interference fit to produce is blocked pin, and pin is fixed in the pin-and-hole, and bucket tooth cooperates with toothholder through pin.Though pin can well be combined together toothholder and tooth cover, whole pin and circular jump ring are whole interference fit, so bother relatively during dismounting.In addition because foozle or toothholder use the cause of wearing and tearing for a long time, rocking in various degree can appear in bucket tooth, and when the rolling momentum was big on the left and right directions, because bucket tooth receives certain unbalance loading at work, pin was subject to shear and ruptures.
Summary of the invention
To the problems referred to above of existing toothholder and the existence of bucket tooth fit structure, the utility model provides the fit structure of a kind of toothholder and bucket tooth.
The technological means that the utility model technical solution problem is adopted is:
The fit structure of a kind of toothholder and bucket tooth comprises toothholder and bucket tooth, and said toothholder comprises the toothholder head; Said bucket tooth comprises the bucket tooth cavity, and said bucket tooth cavity comprises the chamber wall, and said bucket tooth is connected with said toothholder head; Said bucket tooth cavity holds said toothholder head, between said toothholder and the said bucket tooth locking member is arranged, and said locking member comprises cylindrical pin-and-hole and the pin that laterally runs through said toothholder head both sides and chamber, said bucket tooth cavity both sides wall; Said pin passes said pin-and-hole, wherein
Said pin-and-hole comprises circular locating hole, and said locating hole is positioned at the first side of said toothholder, and said locating hole radius is greater than said pin-and-hole, and said locating hole cross section is concentric with said pin-and-hole cross section;
Said pin is cylindrical bar-shaped thing; Said pin is provided with location structure; Said location structure comprises a pair of phase circular convexity across a certain distance; Said a pair of circular convexity cooperates with said position of positioning hole, and said a pair of circular protruding spacing and this are to the degree of depth of annular projection thickness sum smaller or equal to said locating hole, and said a pair of circular convex cross section is concentric with said pin cross section;
Also comprise " C " shape snap ring and circular elastomeric element; Part interference fit between a pair of circular convexity on circle and the said pin in said " C " shape snap ring; In said " C " shape snap ring on circle and the said pin except that a pair of circular convexity and this is to the part matched in clearance the part between the circular convexity; Said " C " shape snap ring thickness is smaller or equal to the spacing of a pair of circular convexity on the said pin; Said annular resilient parts are enclosed within said " C " shape snap ring cylindrical outside and form the annular swelling part with said " C " shape snap ring; Said annular swelling part thickness is smaller or equal to the degree of depth of said locating hole; Said annular swelling part comprises general state and swelling state, its cylindrical and said locating hole matched in clearance when said annular swelling part is in said general state, its cylindrical and said locating hole interference fit when said annular swelling part is in said swelling state;
Said annular swelling part places in the said locating hole, and said pin passes said circular swelling part and " C " shape snap ring of said circular swelling part is between the said a pair of circular convexity.
The fit structure of above-mentioned toothholder and bucket tooth, wherein, there is chamfering the said a pair of circular said pin junction that is raised in.
The fit structure of above-mentioned toothholder and bucket tooth, wherein, said bucket tooth and said toothholder connecting portion have positioner.
The fit structure of above-mentioned toothholder and bucket tooth, wherein, said positioner is protruding key and the keyway at said bucket tooth cavity wall edge, said protruding key and the said keyway coupling on the said toothholder head.
The fit structure of above-mentioned toothholder and bucket tooth, wherein, said protruding key has a plurality of, and said keyway quantity is identical with said protruding key.
The fit structure of above-mentioned toothholder and bucket tooth, wherein, said circular elastomeric element is a rubber ring.
The beneficial effect of the utility model is:
Toothholder and bucket tooth syndeton are more firm, have improved the insertion of pin and have extracted efficient, have improved the operating efficiency of bucket tooth loading and unloading, and be simple in structure, easily manufactured.
Description of drawings
Fig. 1 is the stereogram of toothholder of the fit structure of a kind of toothholder of the utility model and bucket tooth;
Fig. 2 is the stereogram of bucket tooth of the fit structure of a kind of toothholder of the utility model and bucket tooth;
Fig. 3 is the stereogram of pin of the fit structure of a kind of toothholder of the utility model and bucket tooth;
Fig. 4 is the stereogram of annular swelling part of the fit structure of a kind of toothholder of the utility model and bucket tooth;
Fig. 5 is the assembling explosive view of the fit structure of a kind of toothholder of the utility model and bucket tooth.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further, but not as the qualification of the utility model.
As depicted in figs. 1 and 2, the fit structure of a kind of toothholder of the utility model and bucket tooth comprises toothholder 1 and bucket tooth 2, and toothholder 1 comprises toothholder head 11; Bucket tooth 2 comprises bucket tooth cavity 21, and bucket tooth cavity 21 comprises chamber wall (not marking in the drawings), and bucket tooth 2 is connected with toothholder head 11; Bucket tooth cavity 21 holds toothholder head 11; Between toothholder 1 and the bucket tooth 2 locking member is arranged, locking member comprises cylindrical pin-and-hole 13,23 and the pin 3 that laterally runs through toothholder head 11 both sides and chamber, bucket tooth cavity 21 both sides wall, and pin 3 passes pin-and-hole 13,23; Wherein
Pin-and-hole 13 comprises circular locating hole 131, and locating hole 131 is positioned at toothholder head 11 1 sides, and locating hole 131 radiuses are greater than pin-and-hole 13, and locating hole 131 cross sections are concentric with pin-and-hole 13 cross sections;
Pin 3 as shown in figures 1 and 3 is cylindrical bar-shaped thing; Pin 3 is provided with location structure; Location structure comprise a pair of phase across a certain distance circular protruding 31; A pair of circular protruding 31 cooperate with locating hole 131 positions, and a pair of circular protruding 31 spacings and this are to the degree of depth of annular projection 31 thickness sums smaller or equal to locating hole 131, and a pair of circular protruding 31 cross sections are concentric with pin 3 cross sections;
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5; Also comprise " C " shape snap ring 41 and circular elastomeric element 42; Part 32 interference fit between a pair of circular protruding 31 on circle and the pin 3 in " C " shape snap ring 41; In " C " shape snap ring 41 on circle and the pin 4 except that a pair of circular protruding 31 and this is to the part matched in clearance the part 32 between circular protruding 31; " C " shape snap ring 41 thickness are smaller or equal to a pair of circular protruding 31 spacing on the pin 3; Annular resilient parts 42 are enclosed within " C " shape snap ring 41 cylindricals outside and form annular swelling part 4 with " C " shape snap ring 41, and annular swelling part 4 thickness are smaller or equal to the degree of depth of locating hole 131, and annular swelling part 4 comprises general state and swelling state; Its cylindrical and locating hole 131 matched in clearance when annular swelling part 4 is in general state, its cylindrical and locating hole 131 interference fit when annular swelling part 4 is in swelling state;
During use pin 3 is inserted pin-and-hole 13,23; One of them struts " C " shape snap ring 41 by a pile on the pin 3 circular protruding 31; And along with the continuation of pin 3 is inserted on two parts 32 that fall in the middle of a pair of circular protruding 31 and main by a pair of circular protruding 31 cards; Because part 32 and " C " shape snap ring 41 interference fit in the middle of a pair of circular protruding 31; Making this moment " C " shape snap ring 41 be in the state that is strutted makes the annular elastomeric element 42 that is nested outside " C " shape snap ring be in swelling state; And then make whole annular swelling part 4 be in swelling state, thereby annular swelling part 4 and locating hole 131 interference fit are fixed on pin 3 in the pin-and-hole 13,23.Because part 32 interference fit on " C " shape snap ring 41 of annular swelling part 4 and the pin 3 between a pair of circular protruding 31 with other part matched in clearance, are encircled on the pin 3 of packing into " C " shape card 41 very convenient between a pair of circular protruding 31.
Further, a pair of circular protruding 31 have chamfering in pin 3 junctions.Circular protruding 31 are provided with chamfering with pin 3 junctions can make pin 3 insert or to extract the C shape snap ring 41 of circular swelling part 4 more convenient.
Further, circular elastomeric element 42 can be a rubber ring.Rubber ring has better elastic and good resistance to ag(e)ing, is fit to the functional requirement of the utility model.
Further, bucket tooth 2 is provided with positioner with the connecting portion of toothholder 1.Positioner can help bucket tooth 2 more firm with being connected of toothholder 1, can double swerve, and positioner can be protruding key 12 and the keyway 22 of bucket tooth cavity 21 chamber mural margins on the toothholder head 11 on this basis, protruding key 12 and keyway 22 couplings.Protruding key 12 inserts in the keyway 22 when toothholder 1 is connected with bucket tooth 2, and makes its fit clearance be controlled at 3-4mm, can control bucket tooth 2 double swerves, avoids pin 3 to be sheared power and cuts off.Protruding on this basis key 12 can be provided with a plurality of, and the keyway 22 of equal number can be set.A plurality of protruding keys 12 cooperate with keyway 22 can make the bucket tooth 2 and the connective stability of toothholder 1 be further improved.
The above is merely the utility model preferred embodiment; Be not thus the restriction the utility model claim; So the equivalent structure that all utilization the utility model manuals and diagramatic content have been done changes, and all is included in the protection domain of the utility model.
Claims (6)
1. the fit structure of toothholder and bucket tooth comprises toothholder and bucket tooth, and said toothholder comprises the toothholder head; Said bucket tooth comprises the bucket tooth cavity; Said bucket tooth cavity comprises the chamber wall, and said bucket tooth is connected with said toothholder head, and said bucket tooth cavity holds said toothholder head; Between said toothholder and the said bucket tooth locking member is arranged; Said locking member comprises cylindrical pin-and-hole and the pin that laterally runs through said toothholder head both sides and chamber, said bucket tooth cavity both sides wall, and said pin passes said pin-and-hole, it is characterized in that:
Said pin-and-hole comprises circular locating hole, and said locating hole is positioned at the first side of said toothholder, and said locating hole radius is greater than said pin-and-hole, and said locating hole cross section is concentric with said pin-and-hole cross section;
Said pin is cylindrical bar-shaped thing; Said pin is provided with location structure; Said location structure comprises a pair of phase circular convexity across a certain distance; Said a pair of circular convexity cooperates with said position of positioning hole, and said a pair of circular protruding spacing and this are to the degree of depth of annular projection thickness sum smaller or equal to said locating hole, and said a pair of circular convex cross section is concentric with said pin cross section;
Also comprise " C " shape snap ring and circular elastomeric element; Part interference fit between a pair of circular convexity on circle and the said pin in said " C " shape snap ring; In said " C " shape snap ring on circle and the said pin except that a pair of circular convexity and this is to the part matched in clearance the part between the circular convexity; Said " C " shape snap ring thickness is smaller or equal to the spacing of a pair of circular convexity on the said pin; Said annular resilient parts are enclosed within said " C " shape snap ring cylindrical outside and form the annular swelling part with said " C " shape snap ring; Said annular swelling part thickness is smaller or equal to the degree of depth of said locating hole; Said annular swelling part comprises general state and swelling state, its cylindrical and said locating hole matched in clearance when said annular swelling part is in said general state, its cylindrical and said locating hole interference fit when said annular swelling part is in said swelling state;
Said annular swelling part places in the said locating hole, and said pin passes said circular swelling part and " C " shape snap ring of said circular swelling part is between the said a pair of circular convexity.
2. the fit structure of toothholder and bucket tooth according to claim 1 is characterized in that there is chamfering the said a pair of circular said pin junction that is raised in.
3. the fit structure of toothholder and bucket tooth according to claim 1 is characterized in that said bucket tooth and said toothholder connecting portion have positioner.
4. like the fit structure of said toothholder of claim 3 and bucket tooth, it is characterized in that said positioner is protruding key and the keyway at said bucket tooth cavity wall edge, said protruding key and the said keyway coupling on the said toothholder head.
5. like the fit structure of said toothholder of claim 4 and bucket tooth, it is characterized in that said protruding key has a plurality of, said keyway quantity is identical with said protruding key.
6. like the fit structure of arbitrary said toothholder and bucket tooth among the claim 1-5, it is characterized in that said circular elastomeric element is a rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202832540U CN202214757U (en) | 2011-08-05 | 2011-08-05 | Match structure of tooth seat and bucket tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202832540U CN202214757U (en) | 2011-08-05 | 2011-08-05 | Match structure of tooth seat and bucket tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202214757U true CN202214757U (en) | 2012-05-09 |
Family
ID=46014017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202832540U Expired - Fee Related CN202214757U (en) | 2011-08-05 | 2011-08-05 | Match structure of tooth seat and bucket tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202214757U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452163A (en) * | 2013-09-12 | 2013-12-18 | 太原重工股份有限公司 | Excavator and bucket tooth connection assembly thereof |
| CN105026656A (en) * | 2013-03-15 | 2015-11-04 | 卡特彼勒公司 | Retainer systems for ground engaging tools |
| CN106661872A (en) * | 2014-06-27 | 2017-05-10 | 罗伯特·S·比尔维思 | Self-locking connector pin for demountably securing consumable ground digging components to containers of earth moving equipment |
| CN108411975A (en) * | 2018-03-27 | 2018-08-17 | 芜湖天梦信息科技有限公司 | A kind of excavator bucket teeth |
| US20230061737A1 (en) * | 2021-09-02 | 2023-03-02 | Caterpillar Inc. | Adapter with thru-hole and rail |
| WO2023075717A1 (en) * | 2021-10-27 | 2023-05-04 | Mak-İş Yedek Parça Mak. Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ | Lock system for ground engaging wear parts of construction equipment |
-
2011
- 2011-08-05 CN CN2011202832540U patent/CN202214757U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105026656A (en) * | 2013-03-15 | 2015-11-04 | 卡特彼勒公司 | Retainer systems for ground engaging tools |
| CN103452163A (en) * | 2013-09-12 | 2013-12-18 | 太原重工股份有限公司 | Excavator and bucket tooth connection assembly thereof |
| CN106661872A (en) * | 2014-06-27 | 2017-05-10 | 罗伯特·S·比尔维思 | Self-locking connector pin for demountably securing consumable ground digging components to containers of earth moving equipment |
| CN108411975A (en) * | 2018-03-27 | 2018-08-17 | 芜湖天梦信息科技有限公司 | A kind of excavator bucket teeth |
| US20230061737A1 (en) * | 2021-09-02 | 2023-03-02 | Caterpillar Inc. | Adapter with thru-hole and rail |
| WO2023034055A1 (en) * | 2021-09-02 | 2023-03-09 | Caterpillar Inc. | Adapter for a work implement with thru-hole and rail |
| WO2023075717A1 (en) * | 2021-10-27 | 2023-05-04 | Mak-İş Yedek Parça Mak. Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ | Lock system for ground engaging wear parts of construction equipment |
| GB2623271A (en) * | 2021-10-27 | 2024-04-10 | Mak Is Yedek Parca Mak Sanayi Ve Ticaret Ltd Sirketi | Lock system for ground engaging wear parts of construction equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20140805 |
|
| EXPY | Termination of patent right or utility model |