CN103465979A - Guide wheel assembly of excavator - Google Patents
Guide wheel assembly of excavator Download PDFInfo
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- CN103465979A CN103465979A CN2013104552478A CN201310455247A CN103465979A CN 103465979 A CN103465979 A CN 103465979A CN 2013104552478 A CN2013104552478 A CN 2013104552478A CN 201310455247 A CN201310455247 A CN 201310455247A CN 103465979 A CN103465979 A CN 103465979A
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- excavator
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- 239000004033 plastic Substances 0.000 claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 239000004519 grease Substances 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 abstract 3
- 238000005299 abrasion Methods 0.000 abstract 2
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002105 nanoparticle Substances 0.000 description 11
- 238000013016 damping Methods 0.000 description 7
- 239000000314 lubricant Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
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- 235000014121 butter Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 238000009830 intercalation Methods 0.000 description 1
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- 239000002689 soil Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
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Abstract
The invention provides a guide wheel assembly of an excavator. The guide wheel assembly comprises a wheel body and a wheel shaft, which are mounted and matched together; a lining is cushioned between the wheel body and the wheel shaft; an oil seal device is arranged by corresponding to the outer part of the lining adopting a nano-plastic lining. In such a mode, the structural mode of the traditional guide wheel is broken through, and the dual-metal sleeve mode lining of the traditional guide wheel is replaced with the nano-plastic lining; as the nano-plastic has the performances such as heat resistance, weather resistance and abrasion resistance as those of a ceramic material, all performance parameters are far better than the metal material of the traditional lining, and meanwhile, the tenacity, the impact resistance and easy machinability of the plastic are reserved, so a lubricating grease with a weaker lubricating property can be adopted, the demand on the oil seal can be reduced, the defects of the poor performances of heat resistance, weather resistance and abrasion resistance of the traditional guide wheel lining, and high demands on a liquid lubricant and the oil seal are overcome. Compared with the prior art, the guide wheel assembly of the excavator has the advantages that the whole performances are improved and the service life is prolonged while the machining cost and the material cost are greatly reduced and the practicability is strong.
Description
Technical field
The present invention relates to the excavating machine field of components, be specifically related to a kind of performance and improve, the guide wheel for excavator assembly that cost reduces greatly.
Background technology
Guide wheel has been known as the important spare part of crawler doer and excavating machine and correlation engineering machine-walking system, comparatively common disclose a kind of Novel guide wheel for excavator as Chinese utility model patent CN201120057951.4, comprise wheel body, floating envelope chamber, end cap, axle and axle sleeve; In Fu Feng chamber, the two ends of described wheel body, place arranges two symmetrical oil leaking holes; Two axle sleeves are pressed into from the wheel body two ends respectively, and end cap is anchored on an end of wheel body; Axle penetrates the other end from an end by axle sleeve.Other forms of guide wheel is also arranged, as Chinese utility model patent CN201120264546.X discloses a kind of guide wheel, comprise: guiding wheel body, interior guide frame, adjustment bolt, outer guide frame, sleeve assembly, floating sealing assembly, guiding wheel shaft and locating dowel pin, described guide wheel also comprises: guide plate and damping spring; Described damping spring is installed in described outer guide frame, thereby described guiding wheel body is supported by supporting outer guide frame in the top of described damping spring, thereby the bottom of described damping spring is positioned on bogie frame by described guide plate, make described bogie frame and described guiding wheel body flexibly connect at above-below direction.Described damping spring is rubber spring.Described outer guide frame is installed on guiding wheel shaft by locating dowel pin.Described interior guide frame is arranged on outer guide frame.Described guide plate below supports on bogie frame on plane, and top connects damping spring.The application of aforementioned two kinds of guide wheels is more extensive, has also represented the version of most of guide wheels on market, no matter but which kind of guide wheel, axle sleeve (lining) all adopts metallic material, as the composite metal cover.And caterpillar machinery is when reality walking operation, particularly when turning to, the impact that the guide wheel place is subject to is very large, so it is all very large to play pressure and friction force that the lining of carrying effect is subject to, just require lining that the performances such as sufficiently high Dent resistance, wear-resisting, heat-resisting and toughness are arranged, and common metal is difficult to reach this requirement, if will make metal reach this requirement, material cost will remain high.So in actual conditions, people get the metallic material of intermediate performance more and make lining, then be used in conjunction with the lubricating liquid that lubricity is superior, to make up a little the deficiency of material property, but so just need the oil sealing arrangement of oil sealing superior performance to be sealed, as the float grease seal device, so the cost of manufacture of guide wheel integral body is still very high, and the Dent resistance of the lining of this metallic material, wear-resisting, the performances such as heat-resisting and toughness are still not enough, and the damping, buffering effect to wheel body and wheel shaft is inadequate, lining and whole guide wheel are all fragile, service life is short, trace it to its cause is that the material of lining exists defect, poor practicability.
Given this, this case contriver carries out in-depth study to the problems referred to above, then has this case to produce.
Summary of the invention
The object of the present invention is to provide a kind of overall performance raising, service life when extending, the guide wheel for excavator assembly that tooling cost and material cost reduce greatly.
In order to achieve the above object, the present invention adopts such technical scheme:
A kind of guide wheel for excavator assembly, comprise the wheel body and the wheel shaft that are installed togather, and between the two, pad is provided with lining, and the outside of corresponding described lining is provided with oil sealing arrangement; Described lining is the nano plastic lining.
Above-mentioned lining is two, is divided into the axis hole two ends place of above-mentioned wheel body, and the outer end side face of two described linings is formed with respectively the flange radially be convexly equipped with, and is formed with the gap of the accommodating two described linings of coupling between above-mentioned wheel body and wheel shaft.
Also comprise the guide wheel support that is forked, two legs of described guide wheel support are articulated in respectively the two ends of above-mentioned wheel shaft, and block up the two ends of being located at above-mentioned axis hole respectively.
An above-mentioned leg end corresponding with above-mentioned wheel body is formed with the annular groove around above-mentioned wheel shaft, described wheel body is formed with the corresponding annular protrusion stretched in described annular groove, and above-mentioned oil sealing arrangement is for mating the outside framework oil seal device between the inward flange of being located at described annular protrusion and described annular groove.
The inward flange of above-mentioned annular groove is resisted against on the end face of above-mentioned lining.
There is space between two above-mentioned linings.
The radial wall thickness of above-mentioned lining is greater than 7mm, and the axial width of above-mentioned flange is greater than 7mm.
The radial wall thickness of above-mentioned lining is 7-8mm, and the axial width of above-mentioned flange is 7-9mm.
After adopting technique scheme, guide wheel for excavator assembly of the present invention, break through the structural form of traditional guide wheel, the lining of traditional guide wheel composite metal cover form is replaced with to the nano plastic lining, because nano plastic has heat-resisting as stupalith, weather-proofly (specifically can resist subzero 50 ℃ of low temperature, also be applicable to severe cold area, applied range) and the performance such as wear-resisting, the metallic material of each performance perameter ultra-traditional lining far away, retained again the toughness that plastics itself possess simultaneously, the performance such as Dent resistance and workability, so in actual use, can adopt the weak lubricants such as grease of lubricity, and then can reduce the oil sealing requirement, and can play to wheel body and wheel shaft the effect of bumper and absorbing shock, overcome traditional guide wheel lining heat-resisting, a little less than the performance such as weather-proof and wear-resisting, lubricating liquid and oil sealing require high defect, compared with prior art, guide wheel for excavator assembly of the present invention, its lining heat-resisting, weather-proof, wear-resisting, toughness, Dent resistance and workability can all improve, can adopt the weak lubricants such as grease of lubricity, oil sealing requires low, overall performance improves, service life is when extending, tooling cost and material cost reduce greatly, practical.
The accompanying drawing explanation
Fig. 1 is semi-sictional view structural representation of the present invention;
The sectional structure schematic diagram that Fig. 2 is lining;
The sectional structure schematic diagram that Fig. 3 is oil sealing arrangement;
The sectional structure schematic diagram that Fig. 4 is wheel body;
The sectional structure schematic diagram that Fig. 5 is the guide wheel support.
In figure:
1-wheel body 11-annular protrusion
2-wheel shaft 3-lining
31-flange 32-space
4-oil sealing arrangement 5-guide wheel support
51-leg 511-annular groove
The 512-inward flange
The specific embodiment
Be described in detail technical scheme of the present invention below by specific embodiment in order further to explain.
A kind of guide wheel for excavator assembly of the present invention, as Figure 1-5, comprise wheel body 1 and wheel shaft 2.
Wheel body 1 is installed togather with wheel shaft 2, and between the two, pad is provided with lining 3, and the outside of corresponding lining 3 is provided with oil sealing arrangement 4; Improvements are, lining 3 is the nano plastic lining.
" nanometer " is the measure unit of a length, and its yardstick is 1/1000000000th meter (10
-9m).In general, nano material refers in the two-phase micro-structure and has at least the unidimensional scale of a phase to reach nanoscale.The particle diameter of nano particle is very little, and surface can be very large, very easily reunites, so how the preparing nano particle itself is exactly a very complicated technical matters.The nano particle that at present can make and utilize mostly is inorganic nano-particle, and the nano particle that can be effectively plastics be carried out to modification is that SiO2, TiO2, CaCO3 and illiteracy are opened up soil (MMT) etc.
The core content of " nanotechnology " is the agglomeration traits that how to solve nano particle, because nano particle itself is very easily reunited, the nano particle that obtains single dispersion is very difficult, and how to make nano particle be distributed to equably in matrix going is the key of " nanotechnology ".From the applied research report of " nanotechnology ", analyze at present, the method that can carry out industrialization has two kinds:
1, nano intercalatedization technology, by the n-MMT of intercalation processing, made certain compaction rate, the master batch of size uniform, again this master batch process is mixed and stirred to blend and granulation, solve nano material and disperse an inhomogeneous difficult problem in matrix, make nano composite material;
2, utilize the vibromill dispersion method can make nano particle dispersed in matrix, substantially do not produce reunion, really accomplished the nanoscale dispersion.
Nano plastic refers to usings high molecular polymer as matrix, the product fully disperseed in plastic resin by nano particle, there is heat-resisting as stupalith, weather-proofly (specifically can resist subzero 50 ℃ of low temperature, also be applicable to severe cold area, applied range) and the performance such as wear-resisting, the metallic material of each performance perameter ultra-traditional lining far away, retained again the toughness that plastics itself possess simultaneously, the performance such as Dent resistance and workability, so in the actual use procedure of nano plastic lining, can adopt the weak lubricants such as grease of lubricity, and then can reduce the oil sealing requirement, and can play to wheel body 1 and wheel shaft 2 effect of bumper and absorbing shock, overcome traditional guide wheel lining heat-resisting, a little less than the performance such as weather-proof and wear-resisting, lubricating liquid and oil sealing require high defect.
Preferably, lining 3 is two, be divided into the place, axis hole two ends of wheel body 1, and the outer end side face of two linings 3 is formed with respectively the flange 31 radially be convexly equipped with, be formed with the gap of accommodating two linings 3 of coupling between wheel body 1 and wheel shaft 2, flange 31 can be stuck in the axis hole end of wheel body 1, can play positioning action to whole lining 3, and flange 31 pads are located between wheel body 1 and other support component of axle head, play the effect of " side direction lining ".
Preferably, also comprise the guide wheel support 5 that is forked, two legs 51 of guide wheel support 5 are articulated in respectively the two ends of wheel shaft 2, and block up respectively the two ends of the axis hole of being located at wheel body 1.
Preferably, leg 51 end corresponding with wheel body 1 is formed with the annular groove 511 around wheel shaft 2, wheel body 1 is formed with the corresponding annular protrusion 11 stretched in annular groove 511, oil sealing arrangement 4 is for mating the outside framework oil seal device between the inward flange 512 of being located at annular protrusion 11 and annular groove 511, superior performance due to the nano plastic lining, so preferably adopt the lower-cost grease such as butter or claim that semisolid lubricants is lubricant, the oil sealing arrangement 4 of outside framework oil seal device form can meet the oil sealing requirement of this kind of lubricant, integral structure is simple, easily processing, cost is low.
Preferably, the inward flange 512 of annular groove 511 is resisted against on the end face of lining 3, when flange 31 can play position-limiting action to lining 3, also can play a supporting role to flange 31, realize that flange 31 pads are located between leg 51 and wheel body 1 to form " side direction lining ".
Preferably, between two linings 3, have space 32, this structure at least has accommodating lubricant, adapts to and expand with heat and contract with cold and be convenient to the effect of installing.
In order to strengthen the stress and deformation degree of lining 3 and flange 31, guarantee shock absorbing effect, preferably, the radial wall thickness of lining 3 is greater than 7mm, and the axial width of flange 31 is greater than 7mm.
Preferably, the radial wall thickness of lining 3 is 7-8mm, specifically can be 7.5mm, and the axial width of flange 31 is 7-9mm, specifically can be 8mm.
Guide wheel for excavator assembly of the present invention, the radial wall thickness of lining and the axial width of flange thereof can be adjusted and be designed according to actual requirement; The shape in space, size etc. can be adjusted and be designed according to actual requirement; The size of annular protrusion is less than annular groove, and the concrete form of the two and fit form also can be adjusted and design according to actual requirement; The form of oil sealing arrangement also can be adjusted and be designed according to actual requirement; The concrete form of guide wheel support also can be adjusted and be designed according to actual requirement; The structure of lining also can be adjusted and be designed according to actual requirement; Nano plastic is prior art, on the websites such as Baidu, can retrieve, as website http://baike.baidu.com/link url=hzW3RHya4zN1cQuPHWWP2SNxEP8qy-nC ysaE4e7CNbpFgGQ94Rt_5_CxyQgJLYjoTszshoizK5bahE8YQiZHfK.
Product form of the present invention is not limited to this case diagram and embodiment, and anyone carries out suitable variation or the modification of similar thinking to it, all should be considered as not breaking away from patent category of the present invention.
Claims (8)
1. a guide wheel for excavator assembly, comprise the wheel body and the wheel shaft that are installed togather, and between the two, pad is provided with lining, and the outside of corresponding described lining is provided with oil sealing arrangement; It is characterized in that: described lining is the nano plastic lining.
2. a kind of guide wheel for excavator assembly according to claim 1, it is characterized in that: above-mentioned lining is two, be divided into the place, axis hole two ends of above-mentioned wheel body, and the outer end side face of two described linings is formed with respectively the flange radially be convexly equipped with, be formed with the gap of the accommodating two described linings of coupling between above-mentioned wheel body and wheel shaft.
3. a kind of guide wheel for excavator assembly according to claim 2, it is characterized in that: also comprise the guide wheel support that is forked, two legs of described guide wheel support are articulated in respectively the two ends of above-mentioned wheel shaft, and the stifled two ends of being located at above-mentioned axis hole respectively.
4. a kind of guide wheel for excavator assembly according to claim 3, it is characterized in that: an above-mentioned leg end corresponding with above-mentioned wheel body is formed with the annular groove around above-mentioned wheel shaft, described wheel body is formed with the corresponding annular protrusion stretched in described annular groove, and above-mentioned oil sealing arrangement is for mating the outside framework oil seal device between the inward flange of being located at described annular protrusion and described annular groove.
5. a kind of guide wheel for excavator assembly according to claim 4, it is characterized in that: the inward flange of above-mentioned annular groove is resisted against on the end face of above-mentioned lining.
6. a kind of guide wheel for excavator assembly according to claim 5, is characterized in that: between two above-mentioned linings, have space.
7. according to the described a kind of guide wheel for excavator assembly of any one in claim 1-6, it is characterized in that: the radial wall thickness of above-mentioned lining is greater than 7mm, and the axial width of above-mentioned flange is greater than 7mm.
8. a kind of guide wheel for excavator assembly according to claim 7, it is characterized in that: the radial wall thickness of above-mentioned lining is 7-8mm, the axial width of above-mentioned flange is 7-9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104552478A CN103465979A (en) | 2013-09-29 | 2013-09-29 | Guide wheel assembly of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104552478A CN103465979A (en) | 2013-09-29 | 2013-09-29 | Guide wheel assembly of excavator |
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| Publication Number | Publication Date |
|---|---|
| CN103465979A true CN103465979A (en) | 2013-12-25 |
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ID=49791087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104552478A Pending CN103465979A (en) | 2013-09-29 | 2013-09-29 | Guide wheel assembly of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103465979A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465978A (en) * | 2013-09-24 | 2013-12-25 | 昆山凯诺尔金属制品有限公司 | Guide wheel |
| CN106964945A (en) * | 2017-04-26 | 2017-07-21 | 福建泉海工贸投资集团有限公司 | A kind of production technology of guide wheel wheel blank |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545624A (en) * | 1983-02-16 | 1985-10-08 | J. I. Case Company | Crawler track tensioning and drive system |
| CN1386774A (en) * | 2001-05-20 | 2002-12-25 | 唐文敬 | Tough polymer bearing of modified engineering plastic for vehicle and ship |
| JP2004114780A (en) * | 2002-09-25 | 2004-04-15 | Kubota Corp | Idler wheel supporting structure |
| CN202138433U (en) * | 2011-07-25 | 2012-02-08 | 山推工程机械股份有限公司 | Guiding wheel |
| CN202186443U (en) * | 2011-06-28 | 2012-04-11 | 山推工程机械股份有限公司 | Maintenance-free guide wheel for crawler crane |
| CN202463962U (en) * | 2012-03-23 | 2012-10-03 | 熔盛机械有限公司 | Tensioning oil cylinder connection structure for small crawler excavator |
| CN203612089U (en) * | 2013-09-29 | 2014-05-28 | 蒋福海 | Guide wheel assembly of excavator |
-
2013
- 2013-09-29 CN CN2013104552478A patent/CN103465979A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545624A (en) * | 1983-02-16 | 1985-10-08 | J. I. Case Company | Crawler track tensioning and drive system |
| CN1386774A (en) * | 2001-05-20 | 2002-12-25 | 唐文敬 | Tough polymer bearing of modified engineering plastic for vehicle and ship |
| JP2004114780A (en) * | 2002-09-25 | 2004-04-15 | Kubota Corp | Idler wheel supporting structure |
| CN202186443U (en) * | 2011-06-28 | 2012-04-11 | 山推工程机械股份有限公司 | Maintenance-free guide wheel for crawler crane |
| CN202138433U (en) * | 2011-07-25 | 2012-02-08 | 山推工程机械股份有限公司 | Guiding wheel |
| CN202463962U (en) * | 2012-03-23 | 2012-10-03 | 熔盛机械有限公司 | Tensioning oil cylinder connection structure for small crawler excavator |
| CN203612089U (en) * | 2013-09-29 | 2014-05-28 | 蒋福海 | Guide wheel assembly of excavator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465978A (en) * | 2013-09-24 | 2013-12-25 | 昆山凯诺尔金属制品有限公司 | Guide wheel |
| CN106964945A (en) * | 2017-04-26 | 2017-07-21 | 福建泉海工贸投资集团有限公司 | A kind of production technology of guide wheel wheel blank |
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Application publication date: 20131225 |
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