CN103125179B - Soil-coverable double-chamber structural rubber press wheel - Google Patents

Soil-coverable double-chamber structural rubber press wheel Download PDF

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Publication number
CN103125179B
CN103125179B CN201310072981.6A CN201310072981A CN103125179B CN 103125179 B CN103125179 B CN 103125179B CN 201310072981 A CN201310072981 A CN 201310072981A CN 103125179 B CN103125179 B CN 103125179B
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wheel
radius
wheel body
curvature
pattern block
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CN103125179A (en
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贾洪雷
郭慧
范旭辉
齐江涛
王玉
王刚
赵佳乐
姜鑫铭
冯先臻
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Jilin University
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Jilin University
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Abstract

The invention provides a soil-coverable double-chamber structural rubber press wheel, and belongs to the technical field of agricultural machinery. The soil-coverable double-chamber structural rubber press wheel has the structure that two rims are embedded into concave grooves on two sides of a wheel body and are fixedly connected through bolts I and nuts I; a hub is placed in the centers of circles of the wheel body and the two rims and fixedly connects the wheel body with the two rims by bolts II and nuts II; the wheel body is provided with two crowns and communication chamber bodies, wherein the crowns and the communication chamber bodies are leftwards and rightwards symmetric; chambers in the chamber body on two sides are intercommunicated; a pattern block I and a pattern block II, which are symmetrically distributed, are respectively arranged on the running surfaces of the tyres at two sides, wherein the pattern block II is at an included angle Alpha of 40 to 45 degrees respect to the direction of a central axis of each tyre body; and the pattern block I and the pattern block II account for 40 to 50% of the area of the top surfaces of the crowns, and are uniformly distributed on the top surfaces of the crowns. By adopting the soil-coverable double-chamber structural rubber press wheel, the work of pressing can be realized during seeding; the soil-coverable double-chamber structural rubber press wheel can replace a soil covering device for covering the soil, and also can reduce the phenomenon that the soil is adhered on the press wheel during working; and the demand on work of an inter-row cultivator-planting machine under the stubble-furrow alternative protective type farming mode can be met.

Description

Double cavity structure rubber press wheel that can earthing
Technical field
The invention belongs to agricultural machinery technological field, be specifically related to a kind of agricultural machinery cultivating member of compacting soil--there is the elasticity soil press wheel of double cavity structure.
Background technology
Press wheel is a kind of conventional agricultural machinery parts; its major function is that soil is after planting suppressed, and to increase density and the consolidation of soil, thereby it is too fast to prevent that soil moisture runs off; soil protection soil moisture content, maintenance ground temperature are seed sprouting and the suitable kind bed environment of creation of emerging.
Suppression of soil wheel is applied on sower can realize earthing, two operation functions of suppression, can make the structure of sower more compact.Existing suppression of soil wheel mainly contains concave surface press wheel, the compound press wheel of circular cone, two narrow V-type press wheel etc. of taking turns is several.
The compound press wheel of concave surface press wheel and circular cone is all to utilize its wheel rim profile to have to centre the effect of gathering to kind of ditch both sides soil, thereby realizes earthing, suppression operation.But its wheel rim outer shape is what fix, can only be applicable to soil comparatively soft, that viscosity is little.On the contrary, two narrow V-type press wheels of taking turns are because its tire is narrower, long-pending less with soil contact, are easily absorbed in soil, so be not suitable for mellow soil.
Because rubber-like wheel body is in the time contacting with ground, contact-making surface produces crimp, can make wheel body produce radial load and side force, so that its bottom is expanded to both sides.Through the improvement to wheel body profile, can make press wheel wheel body in actual job process, the direction of the suffered bonding force in sidewall, reaches consistent with the force direction of the required earthing power of seeding operation.This phenomenon provides theoretical foundation for the adjustment of design earth pack wheel surface structure and soil contact action power.
Natural rubber has higher at normal temperatures elasticity because of it, good mechanical strength, and hysteresis loss is little, and while repeatedly distortion, heat-dissipating is low, and its flexible resistance is high in addition, and this material for agricultural machinery employing provides theoretical foundation.
Existing theoretical foundation and practical experience above, all for the realization of press wheel earthing and suppression function provides a kind of scheme of feasibility.
Summary of the invention
The object of the present invention is to provide a kind of double cavity structure rubber press wheel that can earthing, to replace covering device to play earthing effect, and can simplify work tool structure, soil adhesion phenomenon while alleviating press wheel operation, play a positive role for improving operating efficiency.
For achieving the above object; the present invention is from elastic tyre structural mechanics and tire and soil contact relation; replace the technical characterstic of conservation tillage pattern in conjunction with toothing ditch platform, researched and developed a kind of novel suppression device---double cavity structure rubber press wheel that can earthing.It is to change year after year on ridge plantation for alternately plantation in the ranks that described toothing ditch platform replaces conservation tillage pattern, i.e. earth's surface toothing after autumn harvest, and Second Year is sowed spring between two toothings are capable, and sowing row and the capable annual exchange of toothing once, realize and replace crop rotation.Mainly take following technical scheme:
The present invention is mainly made up of wheel body, wheel rim, bolt, nut and wheel hub, and wherein wheel rim I 2 and wheel rim II 4 are embedded in the groove of wheel body 3 both sides, and affixed through bolt I 5 and nut I 1; Wheel hub 7 is placed in wheel rim I 2, wheel body 3 and wheel rim II 4 centers of circle, and through bolt II 8 and nut II 6 by affixed to wheel rim I 2, wheel body 3 and wheel rim II 4; Wheel body 3 has two symmetrical crowns and is communicated with cavity, and both sides inside cavity chamber is connected; Both sides tread surface is respectively equipped with pattern block I 9 and pattern block II 10, and pattern block I 9 and pattern block II 10 be arranged symmetrically with, and wherein pattern block II 10 is 40～45 ° with the angle α of carcass central axial direction; Pattern block I 9 and pattern block II 10 account for 40～50% of crown top surface area, and uniform on crown end face, and to increase the frictional force of wheel body 3, preventing from skidding in operation process occurs with the phenomenon of poor stability.
The wherein length L of rib type long-diagonal of rib type structure that described pattern block I 9 and pattern block II 10 are opposite direction 1+ L 2be 45～115mm, and L 2=2L 1, short diagonal length d is 4～6mm, pattern block height h is 1～3mm.
The material of described wheel body 3 is natural rubber.
Described crown, the outer rim radius R on its summit is 140～260mm, the carcass outer rim section width b that is communicated with one-sided chamber in chamber is 60～120mm, the thickness m of crown wall 1be 8～10mm, the thickness m of tire shoulder wall 2be 5～8mm, and m 2be less than m 1, the difference between the two is 2mm optimum.
Described two symmetrical connection chambers, wherein the section of one-sided chamber is the hyperbolicity surfaces of revolution, under natural balanced state, the radius of curvature of profiled outline any point is
Wherein: r kfor one-sided chamber inner edge crown is put circumferential radius, r k=R-m 1; r mfor the circumferential radius of the widest point of one-sided chamber inner edge, and r mvalue is 0.8R-2～0.8R+2mm, and r is real radius corresponding to required radius of curvature place on one-sided chamber profiled outline, 110mm<r in formula m<210mm;
In theory, on the one-sided chamber profile of wheel body 3, the radius of curvature of each point is all not identical, but in actual design, onlys demand the radius of curvature of three representative points of curvature transition point G (or H) of crown point A, the widest some C of section and AC point-to-point transmission.
One-sided chamber inner edge crown point radius of curvature ρ 2=ρ 1-m 1
Wherein: ρ 1for one-sided chamber outer rim crown point radius of curvature, and ρ 1value is 0.82R-2～0.82R+2mm, 115mm< ρ 1<215mm;
The widest of sidewall radius of curvature ρ 3=(r k 2-r m 2)/2r m;
Inner edge tire shoulder place's transition radius of curvature ρ 4=(r k 2-r m 2)/2r k(because tire shoulder is close to crown position, put circumferential radius r therefore use one-sided chamber inner edge crown kreplace denominator r);
By above-mentioned relation Shi Ke get: ρ 2be 107～205mm, ρ 3be 19～46mm, ρ 4be 16～38mm;
ρ 2corresponding coordinate of the center of circle is on the longitudinal axis of one-sided chamber; ρ 3corresponding coordinate of the center of circle is on the transversal line of one-sided chamber; ρ 4corresponding centre point is tried to achieve by geometrograph with inscribed circle; The radius of curvature of one-sided chamber section outer margin contour is meeting crown wall thickness m 1with sidewall wall thickness m 2time, through ρ 5=(R 2-r m 2)/2R, ρ 6=(R 2-r m 2)/2r m, try to achieve ρ 5be 23～45mm, ρ 6be 28～55mm;
The widest some D of section of one-sided chamber to the axis of wheel body 3 apart from m 3be 10～20mm; The distance m of the axis of one-sided chamber and wheel body 3 axis 4be 40～80mm, and ensure that with this press wheel wheel body outer rim and kind ditch both sides mound can close contacts.
The wheel body 3 tyre sidewall thickness m of axis place 5be 10～12mm, 3 liang of connectivity part spacing m of side cavity of wheel body 6be 15～20mm; Carcass section chamber top radius of curvature ρ 7be 110～160mm, and its corresponding center of circle is positioned on the axis of wheel body 3, top radius of curvature ρ 7with sidewall radius of curvature arc transition.
Because wheel body 3 and the tyre sidewall thickness of wheel rim I 2 and wheel rim II 4 joints do not affect operation effectiveness, ensureing that wheel body and wheel rim joint are everywhere on the basis of tyre sidewall intensity, desirable its tyre sidewall thickness is greater than 8mm, Wheel structure size l 1be 20～30mm, l 2be 30～50mm, l 3be 50～70mm, l 4be 10～20mm.
Soil adhesion phenomenon while adopting device of the present invention can realize the suppression in seeding process and alleviate press wheel operation; and can replace covering device to play earthing effect, and can meet toothing ditch platform simultaneously and replace in conservation tillage pattern the job requirements of tilling and seeding machine in the ranks.
Brief description of the drawings
Fig. 1 is the 3-D view of double cavity structure rubber press wheel that can earthing
Fig. 2 is the assembling schematic diagram of double cavity structure rubber press wheel that can earthing
Fig. 3 is the installation diagram of double cavity structure rubber press wheel wheel that can earthing
Fig. 4 is the front view of double cavity structure rubber press wheel wheel body that can earthing
Fig. 5 is wheel body sectional curve parameter schematic diagram
Fig. 6 is pattern block structural representation
Wherein: 1. nut I 2. wheel rim I 3. wheel body 4. wheel rim II 5. bolt I 6. nut II 7. wheel hub 8. bolt II 9. pattern block I 10. pattern block II
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Known by Fig. 1 and Fig. 2: the present invention is mainly made up of wheel body, wheel rim, bolt, nut and wheel hub, wherein wheel rim I 2 and wheel rim II 4 are embedded in the groove of wheel body 3 both sides, and affixed through bolt I 5 and nut I 1; Wheel hub 7 is placed in wheel rim I 2, wheel body 3 and wheel rim II 4 centers of circle, and through bolt II 8 and nut II 6 by affixed to wheel rim I 2, wheel body 3 and wheel rim II 4; The material of wheel body 3 is natural rubber.
Fig. 3 and Fig. 4 are respectively front view and the end view of press wheel wheel body, wheel body section inner edge parameter of curve in conjunction with Fig. 5 is known, wheel body 3 has two symmetrical crowns and is communicated with chamber, two crown end faces are respectively equipped with pattern block I 9 and pattern block II 10, and pattern block I 9 and pattern block II 10 are arranged symmetrically with, wherein pattern block II 10 is 45 ° with the angle α of crown cross section; Pattern block I 9 and pattern block II 10 account for 45% of crown top surface area, and uniform on crown end face.
Be communicated with chamber symmetries due to two, therefore only the structure of a side is wherein resolved.The crown summit outer rim radius R of wheel body 3 is 250mm, and the carcass outer rim section width b of one-sided chamber is 112mm, crown wall thickness m 1for 8mm, tire shoulder wall thickness m 2for 6mm.
The section of wheel body 3 one-sided chambers is the hyperbolicity surfaces of revolution, and under natural balanced state, the radius of curvature of profiled outline any point is &rho; = r k 2 - r m 2 2 r ,
Wherein: r kfor one-sided chamber inner edge crown is put circumferential radius, r k=R-m 1=242mm, r mfor the widest point of section of one-sided chamber circumferentially revolves radius, and r mfor 202mm.
Wherein: r kfor one-sided chamber inner edge crown is put circumferential radius, r k=R-m 1; r mfor the circumferential radius of the widest point of one-sided chamber inner edge, and r mvalue is 0.8R-2～0.8R+2mm, and r is real radius corresponding to required radius of curvature place on one-sided chamber profiled outline, 110mm<r in formula m<210mm;
One-sided chamber inner edge crown point radius of curvature ρ 2=ρ 1-m 1,
Wherein: ρ 1for one-sided chamber outer rim crown point radius of curvature, and ρ 1value is 0.82R-2～0.82R+2mm, 115mm< ρ 1<215mm;
The widest of sidewall radius of curvature ρ 3=(r k 2-r m 2)/2r m;
Inner edge tire shoulder place's transition radius of curvature ρ 4=(r k 2-r m 2)/2r k;
In actual design, only demand crown point A, the radius of curvature of three representative points of curvature transition point G (or H) of the widest some C of section and AC point-to-point transmission is as design structure line.
The crown point radius of curvature ρ of the one-sided chamber outer rim of wheel body 3 1for 205mm, the crown point radius of curvature ρ of inner edge 2=ρ 1-m 1=197mm.The widest some sidewall radius of curvature ρ of section inner edge 3=(r k 2-r m 2)/2r m=44mm, tire shoulder place transition radius of curvature ρ 4=(r k 2-r m 2)/2r k=37mm(is because tire shoulder is close to crown position, therefore use crown point radius r kreplace molecule r).Wherein radius of curvature ρ 2and ρ 3corresponding centre point lays respectively on the longitudinal and transverse axis of one-sided chamber, radius of curvature ρ 4corresponding centre point can be tried to achieve by geometrograph by inscribed circle.The radius of curvature ρ of one-sided chamber section outer margin contour 5=(R 2-r m 2)/2R=43mm, ρ 6=(R 2-r m 2)/2r m=54mm ensures that it meets crown wall thickness m simultaneously 1with sidewall wall thickness m 2requirement.
In conjunction with Fig. 5, the widest D of section of one-sided chamber to the axis of wheel body 3 apart from m 3for 16mm, and meet m 3value can ensure wheel body 3 and the close contact of planting ditch both sides mound.The distance of the axis of wheel body 3 one-sided chambers and wheel body 3 axis m 4 = b 2 + m 3 = 72 mm ,
The wheel body 3 tyre sidewall thickness m of axis place 5for 10mm, 3 liang of connectivity part spacing m of side cavity of wheel body 6for 15mm,
The chamber top radius of curvature ρ of carcass section 7for 150mm, and its corresponding center of circle is positioned on the axis of wheel body 3, and ensures top radius of curvature ρ 7rounding off with sidewall radius of curvature.
Ensure wheel body 3 everywhere tyre sidewall thickness be greater than on the basis of 8mm, obtain Wheel structure size l 1for 25mm, l 2for 45mm, l 3for 60mm, l 4for 12mm.R 1for 135mm, r 2for 140mm, r 3for 150mm, r 4for 180mm.
Fig. 6 is pattern block structural representation
The rib type structure that pattern block I 9 and pattern block II 10 are opposite direction, wherein the length L 1+L2 of rib type long-diagonal is 108mm, and short diagonal length d is 3mm, and pattern block height h is 2mm.
Double cavity structure rubber press wheel that can earthing of the present invention is the affixed rear use of suppression wheel shaft by the wheel hub 7 on it and the row-crop drill frame back rest.

Claims (1)

  1. One kind can earthing double cavity structure rubber press wheel, mainly formed by wheel body, wheel rim, bolt, nut and wheel hub, wherein wheel rim I (2) and wheel rim II (4) are embedded in the groove of wheel body (3) both sides, and affixed through bolt I (5) and nut I (1); Wheel hub (7) is placed in wheel rim I (2), wheel body (3) and wheel rim II (4) circle centre position, and through bolt II (8) and nut II (6) by affixed to wheel rim I (2), wheel body (3) and wheel rim II (4); Wheel body (3) has two symmetrical crowns and is communicated with cavity, and both sides inside cavity chamber is connected; Both sides tread surface is respectively equipped with pattern block I (9) and pattern block II (10), and pattern block I (9) and pattern block II (10) are arranged symmetrically with, wherein pattern block II (10) is 40～45 ° with the angle α of carcass central axial direction; Pattern block I (9) and pattern block II (10) account for 40～50% of crown top surface area, and uniform on crown end face, it is characterized in that described crown, the outer rim radius R on its summit is 140～260mm, the carcass outer rim section width b that is communicated with one-sided chamber in chamber is 60～120mm, the thickness m of crown wall 1be 8～10mm, the thickness m of tire shoulder wall 2be 5～8mm, and m 2be less than m 1;
    Described two symmetrical connection chambers, the radius of curvature of profiled outline any point is
    Wherein: r kfor one-sided chamber inner edge crown is put circumferential radius, r k=R-m 1; r mfor the circumferential radius of the widest point of one-sided chamber inner edge, and r mvalue is 0.8R-2～0.8R+2mm, and r is real radius corresponding to required radius of curvature place on one-sided chamber profiled outline, 110mm<r in formula m<210mm;
    One-sided chamber inner edge crown point radius of curvature ρ 2=ρ 1-m 1
    Wherein: ρ 1for one-sided chamber outer rim crown point radius of curvature, and ρ 1value is 0.82R-2～0.82R+2mm, 115mm< ρ 1<215mm;
    The widest of sidewall radius of curvature ρ 3=(r k 2-r m 2)/2r m;
    Inner edge tire shoulder place's transition radius of curvature ρ 4=(r k 2-r m 2)/2r k;
    By above-mentioned relation Shi Ke get: ρ 2be 107～205mm, ρ 3be 19～46mm, ρ 4be 16～38mm;
    ρ 2corresponding coordinate of the center of circle is on the longitudinal axis of one-sided chamber; ρ 3corresponding coordinate of the center of circle is on the transversal line of one-sided chamber; ρ 4corresponding centre point is tried to achieve by geometrograph with inscribed circle; The radius of curvature of one-sided chamber section outer margin contour is meeting crown wall thickness m 1with sidewall wall thickness m 2time, through ρ 5=(R 2-r m 2)/2R, ρ 6=(R 2-r m 2)/2r m, try to achieve ρ 5be 23～45mm, ρ 6be 28～55mm;
    The widest some D of section of one-sided chamber to the axis of wheel body (3) apart from m 3be 10～20mm; The distance m of the axis of one-sided chamber and wheel body (3) axis 4be 40～80mm;
    The tyre sidewall thickness m of wheel body (3) axis place 5be 10～12mm, wheel body (3) the two connectivity part spacing m of side cavity 6be 15～20mm; Carcass section chamber top radius of curvature ρ 7be 110～160mm, and its corresponding center of circle is positioned on the axis of wheel body (3), top radius of curvature ρ 7with sidewall radius of curvature arc transition;
    The Wheel structure size l of wheel body (3) and wheel rim I (2) and wheel rim II (4) joint 1be 20～30mm, l 2be 30～50mm, l 3be 50～70mm, l 4be 10～20mm.
CN201310072981.6A 2013-03-07 2013-03-07 Soil-coverable double-chamber structural rubber press wheel Expired - Fee Related CN103125179B (en)

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LT3512324T (en) 2016-09-16 2022-08-10 Precision Planting Llc Apparatus for agricultural material application
IT201700061686A1 (en) * 2017-06-06 2018-12-06 Maschio Gaspardo Spa Wheel of seed awards
CN109429647A (en) * 2018-11-05 2019-03-08 湖南省烟草公司长沙市公司 A kind of fertilizition control method and apparatus of flue-cured tobacco
CN109566006A (en) * 2018-11-05 2019-04-05 湖南农业大学 A kind of Fertilizer Application of Tobacco management method and Fertilizer Application of Tobacco device

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691335A (en) * 1949-08-09 1954-10-12 Goodrich Co B F Planter press wheel tire
US2703517A (en) * 1951-05-11 1955-03-08 Goodrich Co B F Planter tire
US2731900A (en) * 1956-01-24 oehler
US3181622A (en) * 1963-12-31 1965-05-04 Sperry Rand Corp Press wheel
US3207234A (en) * 1962-10-22 1965-09-21 Wayne R Stewart Press wheel tire with crust fracture bars
US4489790A (en) * 1982-12-15 1984-12-25 Leonard Lattin Seed planter press wheel
US4493274A (en) * 1980-05-28 1985-01-15 International Harvester Company Furrow forming apparatus for a seed planter
DE29715888U1 (en) * 1997-09-04 1997-11-27 Kverneland Accord Gmbh & Co Kg Ground pressure roller
US5884711A (en) * 1997-04-15 1999-03-23 Shoup Manufacturing Company Gauge wheel scraper
AU2359299A (en) * 1998-04-06 1999-10-14 Ronald Emin Arthur Emms A seed planter press-wheel assembly
US6295939B1 (en) * 1998-04-06 2001-10-02 Ronald Emin Arthur Emms Seed planter press-wheel assembly
DE102007012877A1 (en) * 2007-03-17 2008-09-18 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Agricultural soil roller for e.g. agricultural soil cultivation machine, has sealing rings that are spatially arranged to each other, where sealing rings are circularly rotated and emerged from vulcanized shell surface in projecting manner
CN201789734U (en) * 2010-09-01 2011-04-13 李宁 Pressing wheel of no-tillage planter
CN202396146U (en) * 2011-12-20 2012-08-29 于永良 Improved soil covering press wheel of mechanical sower

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731900A (en) * 1956-01-24 oehler
US2691335A (en) * 1949-08-09 1954-10-12 Goodrich Co B F Planter press wheel tire
US2703517A (en) * 1951-05-11 1955-03-08 Goodrich Co B F Planter tire
US3207234A (en) * 1962-10-22 1965-09-21 Wayne R Stewart Press wheel tire with crust fracture bars
US3181622A (en) * 1963-12-31 1965-05-04 Sperry Rand Corp Press wheel
US4493274A (en) * 1980-05-28 1985-01-15 International Harvester Company Furrow forming apparatus for a seed planter
US4489790A (en) * 1982-12-15 1984-12-25 Leonard Lattin Seed planter press wheel
US5884711A (en) * 1997-04-15 1999-03-23 Shoup Manufacturing Company Gauge wheel scraper
DE29715888U1 (en) * 1997-09-04 1997-11-27 Kverneland Accord Gmbh & Co Kg Ground pressure roller
AU2359299A (en) * 1998-04-06 1999-10-14 Ronald Emin Arthur Emms A seed planter press-wheel assembly
US6295939B1 (en) * 1998-04-06 2001-10-02 Ronald Emin Arthur Emms Seed planter press-wheel assembly
DE102007012877A1 (en) * 2007-03-17 2008-09-18 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Agricultural soil roller for e.g. agricultural soil cultivation machine, has sealing rings that are spatially arranged to each other, where sealing rings are circularly rotated and emerged from vulcanized shell surface in projecting manner
CN201789734U (en) * 2010-09-01 2011-04-13 李宁 Pressing wheel of no-tillage planter
CN202396146U (en) * 2011-12-20 2012-08-29 于永良 Improved soil covering press wheel of mechanical sower

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