CN202265854U - Bucket tooth mounting structure convenient for quick mounting and demounting - Google Patents
Bucket tooth mounting structure convenient for quick mounting and demounting Download PDFInfo
- Publication number
- CN202265854U CN202265854U CN2011203908373U CN201120390837U CN202265854U CN 202265854 U CN202265854 U CN 202265854U CN 2011203908373 U CN2011203908373 U CN 2011203908373U CN 201120390837 U CN201120390837 U CN 201120390837U CN 202265854 U CN202265854 U CN 202265854U
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- Prior art keywords
- bucket tooth
- pin
- toothholder
- bucket
- chamber
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- 230000000295 complement effect Effects 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims description 38
- 229910045601 alloy Inorganic materials 0.000 claims description 35
- 230000000712 assembly Effects 0.000 claims description 28
- 238000000429 assembly Methods 0.000 claims description 28
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 229910001285 shape-memory alloy Inorganic materials 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 208000002925 dental caries Diseases 0.000 abstract 4
- 238000009434 installation Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000270728 Alligator Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The utility model discloses a bucket tooth mounting structure convenient for quick mounting and demounting, which comprises a bucket tooth, a tooth holder and a pin component. The bucket tooth is provided with a bucket tooth cavity, a tooth holder head is arranged in the front of the tooth holder, the bucket tooth cavity and the tooth holder head are complementary in shape, and the bucket tooth is fixedly connected with the tooth holder head through the pin component. Coaxial holes perpendicular to a center plane of the bucket tooth are arranged in mirroring symmetry on the left wall and the right wall of the large end of the bucket tooth cavity, and an inner hole and an outer hole of the bucket tooth cavity form annular recesses. One end of a pin of the pin component is provided with a pin cap, the pin cap is mounted in the annular recess on one side of the bucket tooth, and the other end of the pin is provided with an external memory alloy expansion ring mounted in the annular recess on the other side of the bucket tooth, or the other end of the pin is provided with an annular groove, while the memory alloy expansion ring is mounted in the annular groove and mounted in the annular recess on the other side of the bucket tooth. The pin component with the memory alloy expansion ring is adopted, the bucket tooth can be quickly mounted and demounted by means of electrode or flame heating, and the pin component high in transverse rigidity provides large fastening force, so that connection is reliable.
Description
Technical field
The utility model relates to engineering machinery, is specifically related to a kind of bucket tooth mounting structure of being convenient to quickly dismantled.
Background technology
Common in the market excavator bucket teeth mounting structure is: adopt the alligator of being with the spring that rises to run through bucket tooth and toothholder and affixed; Owing to rise between spring and the installing hole is interference fit; Need the auxiliary installation and removal of bucket tooth, this process effort, the complicacy of carrying out of special-purpose power-equipment.
At application publication number is in the patent of invention of US 2010/0257759 A1; A kind of easy-to-mount bucket tooth mounting structure is provided; Big, the outer aperture of internal orifice dimension of the left and right sides, bucket tooth chamber installing hole is little; One by two end face pins and the linkage unit that the intermediate compression spring is formed, and greater than its outer aperture, described linkage unit runs through the toothholder installing hole and two end face pins hold out against in the endoporus of bucket tooth chamber under the effect of compression spring less than the internal orifice dimension of bucket tooth chamber installing hole for the external diameter of said end face pin; Thereby the realization bucket tooth is connected with toothholder, and can realize quickly dismantled easily through the squeeze operation to the compression spring.But flexibly connect through the compression spring between two end face pins in this linkage unit, lateral stiffness to each other is less, between the load effect lower surface of bucket tooth pin and installing hole, extruding and rubbing action tempestuously can take place, and is easy to wearing and tearing.
At application publication number is in the patent of invention of CN 101821458A; A kind of bucket tooth mounting structure and installation component are provided, and in the bucket tooth mounting structure, an elastic component is inserted in the hole of adaptor; And the external screw thread through first mount pin carries out screw thread with the internal thread of second mount pin and combines; Elastic component is clamped and axially is being compressed by first mount pin and second mount pin, and the inwall fluid-tight engagement with the hole of radially expanding, thereby realizes the connection to bucket tooth.This scheme be convenient to installation and removal, but the expanded radially power that elastic component wherein provides is less, is easy to wear out failure owing to adopt helicitic texture.
Summary of the invention
To the problem that exists in the background technology; The purpose of the utility model is to provide a kind of bucket tooth mounting structure of being convenient to quickly dismantled; Adopt the pin assemblies of the scalable ring of band memorial alloy, be convenient to realize Fast Installation and dismounting, and the lateral stiffness of pin assemblies is big; The fastening force that provides is big, connects reliable, long service life.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
Technical scheme 1:
A kind of bucket tooth mounting structure of being convenient to quickly dismantled comprises bucket tooth, toothholder and pin assemblies; The bucket tooth chamber is wherein arranged in the bucket tooth, and there is the toothholder head toothholder front portion, and bucket tooth chamber and toothholder head shapes are complementary, and the toothholder head is contained in the bucket tooth chamber, and bucket tooth and toothholder head are affixed through pin assemblies; The big end left and right sides, the said bucket tooth chamber sidewall coaxial aperture that is provided with symmetrically perpendicular to the bucket tooth median plane of penetrating on show, wherein the bucket tooth chamber endoporus of both sides is less than hole outside the bucket tooth chamber, and the hole forms annular concave platform respectively outside the bucket tooth chamber endoporus of both sides and the bucket tooth chamber; Described pin assemblies comprises pin and the scalable ring of memorial alloy; One end of pin has the pin cap, and the pin cap end of pin is contained in the annular concave platform of bucket tooth one side, and the pin other end is equipped with the scalable ring of memorial alloy, and the scalable ring of memorial alloy is contained in the annular concave platform of bucket tooth opposite side.
Technical scheme 2:
A kind of bucket tooth mounting structure of being convenient to quickly dismantled comprises bucket tooth, toothholder and pin assemblies, and the bucket tooth chamber is wherein arranged in the bucket tooth; There is the toothholder head toothholder front portion; Bucket tooth chamber and toothholder head shapes are complementary, and this toothholder head is contained in the bucket tooth chamber, and bucket tooth and toothholder head are affixed through pin assemblies; The left and right sides, the said bucket tooth chamber sidewall coaxial aperture that is provided with symmetrically perpendicular to the bucket tooth median plane of penetrating on show, wherein the bucket tooth chamber endoporus of both sides is less than hole outside the bucket tooth chamber, and the hole forms annular concave platform respectively outside the bucket tooth chamber endoporus of both sides and the bucket tooth chamber; Described pin assemblies comprises pin and the scalable ring of memorial alloy; One end of pin has the pin cap, and the pin cap end of pin is contained in the annular concave platform of bucket tooth one side, and the pin other end has annular groove, and the scalable ring of memorial alloy is housed in the annular groove, and the scalable ring of memorial alloy is contained in the annular concave platform of bucket tooth opposite side.
More than in two kinds of technical schemes, the scalable ring of described memorial alloy is the ring of remaining silent.
The beneficial effect that the utlity model has is:
The utility model adopts the pin assemblies of the scalable ring of band memorial alloy, can realize the Fast Installation and the dismounting of bucket tooth easily through electrode or flame heat, and the lateral stiffness of pin assemblies is big, and the fastening force that provides is big, connects reliably, and the life-span is long.The utility model can be used for being convenient in the engineering machinery in the bucket tooth mounting structure of quickly dismantled.
Description of drawings
Fig. 1 is the explosive view of bucket tooth, toothholder and pin assemblies among the utility model embodiment 1.
Fig. 2 is the oblique view of bucket tooth among the utility model embodiment 1.
Fig. 3 is the axial centre sectional view of pin assemblies among the utility model embodiment 1.
Fig. 4 is the utility model embodiment 1 general assembly oblique view.
Fig. 5 is along the sectional view of A-A cross-wise direction among Fig. 4.
Fig. 6 is the axial centre sectional view of pin assemblies among the utility model embodiment 2.
Among the figure: 1, bucket tooth, 11, the bucket tooth chamber, 12, outside the bucket tooth chamber hole, 13, bucket tooth chamber endoporus, 14, annular concave platform; 2, toothholder, 21, the toothholder head, 22, toothholder head hole; 3, pin assemblies; 4, pin, 41, pin, 42, the pin cap, 43, annular groove; 5, the scalable ring of memorial alloy; 6, scraper bowl base plate.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Embodiment 1:
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model comprises bucket tooth 1, toothholder 2 and pin assemblies 3; Wherein bucket tooth interior 1 has bucket tooth chamber 11, and there is toothholder head 21 toothholder 2 front portions, the shape complementarity of bucket tooth chamber 11 and toothholder head 21, and this toothholder head 21 is contained in the bucket tooth chamber 11, and bucket tooth 1 is affixed through pin assemblies 3 with toothholder head 21; The said bucket tooth chamber 11 big end left and right sides sidewalls coaxial aperture that is provided with symmetrically perpendicular to bucket tooth 1 median plane of penetrating on show, wherein the bucket tooth chamber endoporus 13 of both sides is less than hole 12 outside the bucket tooth chamber, and hole 12 forms annular concave platform respectively outside the bucket tooth chamber endoporus 13 of both sides and the bucket tooth chamber; Described pin assemblies 3 comprises pin 4 and the scalable ring 5 of memorial alloy; Pin 41 1 ends of pin 4 have pin cap 42, and pin cap 42 ends of pin 4 are contained in the annular concave platform 14 of bucket tooth 1 one sides, and pin 41 other ends of pin 4 are equipped with the scalable ring 5 of memorial alloy, and the scalable ring 5 of memorial alloy is contained in the annular concave platform 14 of bucket tooth opposite side.
As shown in Figure 1, be the explosive view of bucket tooth 1, toothholder 2, pin assemblies 3 and scraper bowl base plate 6, wherein scraper bowl base plate 6 only shows partial view.Toothholder 2 is installed in the leading edge of scraper bowl base plate 6, and the front portion of toothholder 2 is provided with toothholder head 21, and toothholder head 21 is provided with toothholder head hole 22, is provided with the bucket tooth chamber 11 complementary with toothholder head 21 profiles in the bucket tooth 1.
As shown in Figure 2, be the oblique view of bucket tooth 1.Bucket tooth chamber 11 left and right sides sidewalls coaxial aperture that is provided with symmetrically perpendicular to bucket tooth 1 median plane of penetrating on show, wherein bucket tooth chamber endoporus 13 is less than hole 12 outside the bucket tooth chamber, common looping concave station 14.
As shown in Figure 3, be the axial centre sectional view of said pin assemblies 3.Said pin assemblies 3 is made up of a pin 4 and the scalable ring 5 of memorial alloy that is enclosed within on the pin 4.Said pin 4 one ends are pin cap 42, and pin cap 42 belows are the pin 41 with diameter.The scalable ring 5 of described memorial alloy is the ring of remaining silent.
Fig. 4 is the general assembly drawing of the utility model, and Fig. 5 is along the sectional view of A-A cross-wise direction among Fig. 4.Bucket tooth chamber 11 is nested on the toothholder head 21, and pin 4 pin caps 42 rest on the annular concave platform 14 of bucket tooth 1 one sides, and pin 4 pins 41 pass the bucket tooth chamber of hole 12 outside the bucket tooth chamber, bucket tooth chamber endoporus 13, toothholder head hole 22 and opposite side
Endoporus 13 reaches outside the bucket tooth chamber in the hole 12, and the scalable ring 5 of memorial alloy is enclosed within the terminal of pin 4 pins 41 and is fitted on the annular concave platform 14 of bucket tooth 1 this side.
Because the conversion temperature of used memory alloy material is lower than 200 degree; And the volume of the scalable ring 5 of memorial alloy is little, heating time institute's calorific requirement is few; Therefore can adopt multiple mode of heating; Main as follows: 1), utilize flame heat, directly utilize gaseous fuel to spray and heat, like a kind of gas dynamo exploder of long nozzle.2), utilize resistance to give birth to heat and conduct to the scalable ring 5 of memorial alloy and realize heating.3), utilize the heating of high temperature electric cooker wind.
The process that bucket tooth 1 is installed is: from the left side of bucket tooth 1; The bucket tooth chamber endoporus 13 that pin 4 pins 41 pass hole 12 outside the bucket tooth chamber, bucket tooth chamber endoporus 13, toothholder head hole 22 and opposite side reaches outside the bucket tooth chamber in the hole 12, and pin cap 42 rests on the annular concave platform 14 in bucket tooth 1 left side.It is big to greater than pin 4 pins 41 diameters that the scalable ring 5 of memorial alloy internal diameter after being heated to above the material transition temperature becomes, and the scalable ring 5 of memorial alloy is inserted in the terminal of pin 4 pins 41 and is fitted on the annular concave platform 14 on bucket tooth 1 right side.After treating that the scalable ring 5 of memorial alloy cools off naturally or forces cooling (as watering), its internal diameter dwindles and the end of banding pin 4 pins 41, realizes the installation of bucket tooth 1.
The process of dismounting bucket tooth 1 is: the scalable ring 5 of heating memorial alloy meets and exceeds the transition temperature of material therefor; Memory deformation internal diameter takes place and becomes big extremely greater than pin 4 pins 41 diameters in the scalable ring 5 of memorial alloy; Just can eject out pin 4 easily with hammer, push rod this moment again; And take out the scalable ring 5 of memorial alloy, realize the dismounting of bucket tooth 1.
Described memory alloy material is preferentially selected ti-ni shape memory alloy, and transition temperature is higher than 100 degree.
The pin assemblies of the scalable ring of described band memorial alloy is suitable for but is not limited only to removing and installing fast of scraper bowl bucket tooth, in simple deformation just can be used for other field, has in the pin connection of quickly dismantled requirement.
Embodiment 2:
As shown in Figure 6, be the axial centre sectional view of pin assemblies among the utility model embodiment 2.Compare with Fig. 3 among the embodiment 1, annular groove 43 is set one at pin 4 pins 41 ends.During high temperature (temperature is higher than the transition temperature of memory alloy material), scalable ring 5 internal diameters of said memorial alloy are expanded to greater than pin 4 pins 41 end diameters, installation and removal easily; During normal temperature, scalable ring 5 internal diameters of memorial alloy dwindle and banding annular groove 43.In addition, embodiment 2 is all identical with embodiment 1.
Claims (4)
1. a bucket tooth mounting structure of being convenient to quickly dismantled comprises bucket tooth, toothholder and pin assemblies; The bucket tooth chamber is wherein arranged in the bucket tooth, and there is the toothholder head toothholder front portion, and bucket tooth chamber and toothholder head shapes are complementary, and the toothholder head is contained in the bucket tooth chamber, and bucket tooth and toothholder head are affixed through pin assemblies; It is characterized in that: the left and right sides sidewall coaxial aperture that is provided with symmetrically perpendicular to bucket tooth (1) median plane of penetrating on show is held in said bucket tooth chamber (11) greatly; Wherein the bucket tooth chamber endoporus of both sides is less than hole outside the bucket tooth chamber, and the hole forms annular concave platform respectively outside the bucket tooth chamber endoporus of both sides and the bucket tooth chamber; Described pin assemblies (3) comprises pin (4) and the scalable ring of memorial alloy (5); One end of pin (4) has pin cap (42); Pin cap (42) end of pin (4) is contained in the annular concave platform of bucket tooth one side; Pin (4) other end is equipped with the scalable ring of memorial alloy (5), and the scalable ring of memorial alloy (5) is contained in the annular concave platform of bucket tooth opposite side.
2. a kind of bucket tooth mounting structure of being convenient to quickly dismantled according to claim 1, it is characterized in that: the scalable ring of described memorial alloy (5) is the ring of remaining silent.
3. bucket tooth mounting structure of being convenient to quickly dismantled; Comprise bucket tooth, toothholder and pin assemblies, the bucket tooth chamber is wherein arranged in the bucket tooth, there is the toothholder head toothholder front portion; Bucket tooth chamber and toothholder head shapes are complementary; This toothholder head is contained in the bucket tooth chamber, and bucket tooth and toothholder head are affixed through pin assemblies, it is characterized in that: the left and right sides, said bucket tooth chamber (11) the sidewall coaxial aperture that is provided with symmetrically perpendicular to bucket tooth (1) median plane of penetrating on show; Wherein the bucket tooth chamber endoporus of both sides is less than hole outside the bucket tooth chamber, and the hole forms annular concave platform respectively outside the bucket tooth chamber endoporus of both sides and the bucket tooth chamber; Described pin assemblies (3) comprises pin (4) and the scalable ring of memorial alloy (5); One end of pin (4) has pin cap (42); Pin cap (42) end of pin (4) is contained in the annular concave platform of bucket tooth one side; Pin (4) other end has annular groove (43); The scalable ring of memorial alloy (5) is housed in the annular groove (43), and the scalable ring of memorial alloy (5) is contained in the annular concave platform of bucket tooth opposite side.
4. a kind of bucket tooth mounting structure of being convenient to quickly dismantled according to claim 3, it is characterized in that: the scalable ring of described memorial alloy (5) is the ring of remaining silent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203908373U CN202265854U (en) | 2011-10-14 | 2011-10-14 | Bucket tooth mounting structure convenient for quick mounting and demounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203908373U CN202265854U (en) | 2011-10-14 | 2011-10-14 | Bucket tooth mounting structure convenient for quick mounting and demounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202265854U true CN202265854U (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203908373U Expired - Lifetime CN202265854U (en) | 2011-10-14 | 2011-10-14 | Bucket tooth mounting structure convenient for quick mounting and demounting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202265854U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418363A (en) * | 2011-10-14 | 2012-04-18 | 浙江大学 | Bucket tooth installation structure convenient for rapid disassembly and assembly |
| CN104480992A (en) * | 2014-12-11 | 2015-04-01 | 柳州柳工挖掘机有限公司 | Excavator bucket tooth connection mechanism |
| CN105569113A (en) * | 2015-12-17 | 2016-05-11 | 四川优机实业股份有限公司 | Bucket lip assembly connecting structure of large mining excavator |
| CN105618228A (en) * | 2014-10-31 | 2016-06-01 | 犹永勤 | Bucket tooth used for high-frequency breaking hammer |
| CN112932041A (en) * | 2019-12-10 | 2021-06-11 | 柯马杜股份有限公司 | Decorative element made by inlay technique |
-
2011
- 2011-10-14 CN CN2011203908373U patent/CN202265854U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418363A (en) * | 2011-10-14 | 2012-04-18 | 浙江大学 | Bucket tooth installation structure convenient for rapid disassembly and assembly |
| CN102418363B (en) * | 2011-10-14 | 2013-09-04 | 浙江大学 | Bucket tooth installation structure convenient for rapid disassembly and assembly |
| CN105618228A (en) * | 2014-10-31 | 2016-06-01 | 犹永勤 | Bucket tooth used for high-frequency breaking hammer |
| CN104480992A (en) * | 2014-12-11 | 2015-04-01 | 柳州柳工挖掘机有限公司 | Excavator bucket tooth connection mechanism |
| CN105569113A (en) * | 2015-12-17 | 2016-05-11 | 四川优机实业股份有限公司 | Bucket lip assembly connecting structure of large mining excavator |
| CN112932041A (en) * | 2019-12-10 | 2021-06-11 | 柯马杜股份有限公司 | Decorative element made by inlay technique |
| CN112932041B (en) * | 2019-12-10 | 2023-12-15 | 柯马杜股份有限公司 | Decorative element made by inlay technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120606 Effective date of abandoning: 20130904 |
|
| RGAV | Abandon patent right to avoid regrant |