CN103481958A - Thrust wheel assembly of excavator - Google Patents
Thrust wheel assembly of excavator Download PDFInfo
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- CN103481958A CN103481958A CN201310455306.1A CN201310455306A CN103481958A CN 103481958 A CN103481958 A CN 103481958A CN 201310455306 A CN201310455306 A CN 201310455306A CN 103481958 A CN103481958 A CN 103481958A
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Abstract
The invention provides a thrust wheel assembly of an excavator. The thrust wheel assembly comprises a wheel body and an axel which are installed together in a matched mode. A lining is arranged between the wheel body and the axle in a padding mode, an oil seal device is arranged on the exterior, corresponding to the lining, of the wheel body and the axle, and the lining is a nano-plastic lining. The structure form of a traditional thrust wheel is broken through, and a double-metal-cover lining of the traditional thrust wheel is replaced by the nano-plastic lining. Due to the fact that nano-plastics have heat-resisting, weather-proof and abrasion-resisting properties like the ceramic material, the parameters of the properties of the nano-plastics far exceed those of the metal materials of the traditional lining, meanwhile, the tenacity, the shock resistance and easy-machining performance of the plastics are reserved, lubricating oil which is weak in lubricating performance can be adopted, then, the requirements for an oil seal can be reduced, and the defects that the lining of the traditional thrust wheel is poor in heat-resisting, weather-proof and abrasion-resisting properties and the requirements for liquid lubricating oil and the oil seal are high are overcome. Compared with the prior art, the thrust wheel assembly has the advantages that the overall performance is improved, service life is prolonged, meanwhile, processing cost and material cost are greatly reduced, and practicability is high.
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 thrust wheel of digging machine assembly that cost reduces greatly.
Background technology
Caterpillar wheel has been known as the important spare part of crawler doer and excavating machine and correlation engineering machine-walking system, comparatively common a kind of caterpillar wheel of high sealing performance is disclosed as Chinese invention patent CN201110121187.7, the caterpillar wheel of this kind of high sealing performance comprises the caterpillar wheel body, supporting wheel shaft, bimetallic bush, the left and right axle bed, the O RunddichtringO, set pin, the floating seal assembly, plug cock, press-fit bimetallic bush in the caterpillar wheel body, be bearing on supporting wheel shaft, supporting wheel shaft is connected by set pin with the left and right axle bed, the left and right axle bed is fixed on bogie frame, die cavity between caterpillar wheel body two ends and left and right axle bed is floating envelope chamber S, each floats and seals the indoor one group of floating seal assembly that is equipped with, when the caterpillar wheel body rotates, supporting wheel shaft and bimetallic bush bearing fit, annotate the hyperbolic gear lubricating oil in the Y chamber, the floating envelope chamber S optimization of inside structure transformation of described caterpillar wheel body two ends and left and right axle bed, increase the elastic force of floating seal assembly upward direction, to float envelope chamber angle D and be increased to 10 ° by 9.5 °, degree of depth A adds greatly 14.3mm by 10.1mm, described floating seal assembly comprises metal floating sealing ring and two floating sealing rubber rings of two Double-conical-surfaces, described Double-conical-surface metal floating sealing ring, Optimizing Reconstruction makes floating sealing ring width H add greatly 15.9mm by 11mm, described floating sealing rubber ring is the O RunddichtringO, and Optimizing Reconstruction strengthens the diameter of section R of O RunddichtringO, strengthens the amount of compression of O RunddichtringO, and its diameter of section R adds greatly φ 9.5mm by φ 7.3mm, described floating seal assembly, before transformation, each size relationship is E=T+13.1, B=T+15.3, K=T+11, after transformation, each size relationship is E=T+18.4, B=T+20.1, K=T+16.2,
In formula: E for floating envelope chamber at the bottom of footpath, T be that O RunddichtringO internal diameter, B are the floating sealing ring external diameter for floating envelope chamber diameter, K, according to the tonnage of caterpillar wheel load-bearing and varying in size of oad, T has 5 specifications by 67.5mm to 129mm; Described its material of floating sealing rubber ring is nitrile rubber; Floating sealing rubber ring cover is packed on the Double-conical-surface of Double-conical-surface metal floating sealing ring, form the floating seal assembly; When caterpillar wheel assembles, the floating seal assembly is packed in Fu Feng chamber, caterpillar wheel body two ends, then the floating seal assembly is packed in the floating envelope chamber of left and right axle bed, the floating envelope chamber end face distance N of caterpillar wheel body and left and right axle bed is 3mm, by set pin, is fixed; After completing by the general assembly of caterpillar wheel assembly process, the floating envelope chamber S formed between caterpillar wheel body two ends and left and right axle bed and the wherein combination of one group of floating seal assembly of assembling, form the sealing mechanism of high sealing performance, the sealing mechanism of two high sealing performances is arranged in the caterpillar wheel assembly, makes caterpillar wheel become a kind of caterpillar wheel of high sealing performance.The caterpillar wheel of other form is also arranged on market, no matter but which kind of caterpillar 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 caterpillar 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 caterpillar 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 caterpillar 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 thrust wheel of digging machine 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 thrust wheel of digging machine 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 two stifled caterpillar wheel side covers of being located at above-mentioned axis hole two ends respectively.
An above-mentioned wheel body end corresponding with above-mentioned caterpillar wheel side cover is formed with the annular containing cavity around above-mentioned wheel shaft, and above-mentioned oil sealing arrangement is placed in the outside framework oil seal device in described annular containing cavity for coupling.
Above-mentioned caterpillar wheel side cover is formed with the annular protrusion on the end face that is resisted against above-mentioned lining.
There is space between two above-mentioned linings.
The thickness of above-mentioned lining is greater than 7mm, and the thickness of above-mentioned flange is greater than 7mm.
The thickness of above-mentioned lining is 7-8mm, and the thickness of above-mentioned flange is 7-9mm.
After adopting technique scheme, thrust wheel of digging machine assembly of the present invention, break through the structural form of conventional bogie wheel, the lining of conventional bogie 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 the conventional bogie 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, thrust wheel of digging machine 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 side cover.
In figure:
1-wheel body 11-annular containing cavity
2-wheel shaft 3-lining
31-flange 32-space
4-oil sealing arrangement 5-caterpillar wheel side cover
The 51-annular protrusion
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 thrust wheel of digging machine assembly of the present invention, as Figure 1-5, comprise wheel body 1 and wheel shaft 2.
" 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 the conventional bogie 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 two stifled caterpillar wheel side covers 5 of being located at the axis hole two ends of wheel body 1 respectively.
Preferably, wheel body 1 end corresponding with caterpillar wheel side cover 5 is formed with the annular containing cavity 11 around wheel shaft 2, oil sealing arrangement 4 is the interior outside framework oil seal device of annular containing cavity 11 for coupling is placed in, 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, caterpillar wheel side cover 5 is formed with the annular protrusion 51 on the end face that is resisted against lining 3, when annular protrusion 51 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 caterpillar wheel side cover 5 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.
Thrust wheel of digging machine 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 form of annular protrusion can be adjusted and be designed according to actual requirement; The form of annular containing cavity also can be adjusted and be designed 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 caterpillar wheel side cover 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-nCysaE4e7CNbpFgGQ94Rt_ 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 thrust wheel of digging machine 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 thrust wheel of digging machine 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 thrust wheel of digging machine assembly according to claim 2, is characterized in that: also comprise two stifled caterpillar wheel side covers of being located at above-mentioned axis hole two ends respectively.
4. a kind of thrust wheel of digging machine assembly according to claim 3, it is characterized in that: an above-mentioned wheel body end corresponding with above-mentioned caterpillar wheel side cover is formed with the annular containing cavity around above-mentioned wheel shaft, and above-mentioned oil sealing arrangement is placed in the outside framework oil seal device in described annular containing cavity for coupling.
5. a kind of thrust wheel of digging machine assembly according to claim 4, it is characterized in that: above-mentioned caterpillar wheel side cover is formed with the annular protrusion on the end face that is resisted against above-mentioned lining.
6. a kind of thrust wheel of digging machine assembly according to claim 5, is characterized in that: between two above-mentioned linings, have space.
7. according to the described a kind of thrust wheel of digging machine assembly of any one in claim 1-6, it is characterized in that: the thickness of above-mentioned lining is greater than 7mm, and the thickness of above-mentioned flange is greater than 7mm.
8. a kind of thrust wheel of digging machine assembly according to claim 7, it is characterized in that: the thickness of above-mentioned lining is 7-8mm, the thickness of above-mentioned flange is 7-9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455306.1A CN103481958A (en) | 2013-09-29 | 2013-09-29 | Thrust wheel assembly of excavator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455306.1A CN103481958A (en) | 2013-09-29 | 2013-09-29 | Thrust wheel assembly of excavator |
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| Publication Number | Publication Date |
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| CN103481958A true CN103481958A (en) | 2014-01-01 |
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| CN201310455306.1A Pending CN103481958A (en) | 2013-09-29 | 2013-09-29 | Thrust wheel assembly of excavator |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100114648A (en) * | 2009-04-16 | 2010-10-26 | 두산인프라코어 주식회사 | A bush coated with a coating composition containing enhancing particles and preparation method thereof |
| CN201980314U (en) * | 2011-03-04 | 2011-09-21 | 泉州市长江工程机械有限公司 | Universal supporting wheel and support chain wheel for excvavtor |
| CN202186443U (en) * | 2011-06-28 | 2012-04-11 | 山推工程机械股份有限公司 | Maintaining-free guiding wheel for crawler crane |
| CN102481959A (en) * | 2010-04-07 | 2012-05-30 | 株式会社小松制作所 | Track roller device |
| CN202911832U (en) * | 2012-10-26 | 2013-05-01 | 凯盛重工有限公司 | Dustproof supporting wheel |
| CN103216530A (en) * | 2013-04-11 | 2013-07-24 | 上海亿霖润滑材料有限公司 | Bearing bush |
| CN203612090U (en) * | 2013-09-29 | 2014-05-28 | 蒋福海 | Thrust wheel assembly of excavator |
-
2013
- 2013-09-29 CN CN201310455306.1A patent/CN103481958A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100114648A (en) * | 2009-04-16 | 2010-10-26 | 두산인프라코어 주식회사 | A bush coated with a coating composition containing enhancing particles and preparation method thereof |
| CN102481959A (en) * | 2010-04-07 | 2012-05-30 | 株式会社小松制作所 | Track roller device |
| CN201980314U (en) * | 2011-03-04 | 2011-09-21 | 泉州市长江工程机械有限公司 | Universal supporting wheel and support chain wheel for excvavtor |
| CN202186443U (en) * | 2011-06-28 | 2012-04-11 | 山推工程机械股份有限公司 | Maintaining-free guiding wheel for crawler crane |
| CN202911832U (en) * | 2012-10-26 | 2013-05-01 | 凯盛重工有限公司 | Dustproof supporting wheel |
| CN103216530A (en) * | 2013-04-11 | 2013-07-24 | 上海亿霖润滑材料有限公司 | Bearing bush |
| CN203612090U (en) * | 2013-09-29 | 2014-05-28 | 蒋福海 | Thrust wheel assembly of excavator |
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Application publication date: 20140101 |