CN102529565A

CN102529565A - Open-structural cycle tire without bursting

Info

Publication number: CN102529565A
Application number: CN2011104620226A
Authority: CN
Inventors: 王冰; 余前孙; 邝银欢
Original assignee: SHENZHEN DAOER TYRE TECHNOLOGY Co Ltd
Current assignee: SHENZHEN DAOER TYRE TECHNOLOGY Co Ltd
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2012-07-04

Abstract

The invention provides a tire applicable to mechanical wheel type vehicles (including a motorcycle) and wheel type machinery in a plurality of fields, and relates to an inflating-free and open-structural cycle tire without bursting (including a polyurethane cycle tire and a rubber cycle tire), which is provided with a supporting and buffering structure. By change of the loading and buffering structure of the conventional inflatable cycle tire and a reasonable polyurethane formula, the advantages of the inflatable cycle tire can be kept and the defects of the inflatable cycle tire can be overcome. Meanwhile, the properties of the cycle tire are ameliorated and improved, the service life of the cycle tire is prolonged , the capability of being applied to complex road surfaces is improved, the production process of the cycle tire is simplified and the production cost of the cycle tire is reduced.

Description

A kind of open architecture hand cart tyre that can not blow out

Technical field

The present invention relates to a kind of have support and buffer structure exempt from the inflation polyurethane hand cart tyre manufacturing technology of (comprising cycle tyre) of not blowing out, generally be suitable for multi-field power Mechanical Wheeled Vehicle and wheel machine and use.

Background technology

Application of the present invention is that to have authorized the patent No. of submitting on November 29th, 2009 of Chinese patent be the part continuation application of ZL200920274370.9.

Hand cart tyre is by the traditional classification notion of purposes; Can be divided into several big type of cycle tyre, cart tire, three-wheel tire, electronic tire, cycle tyre and high-mobility, multipurpose, wheeled vehicle tire etc.; They are compared with motor tire, and it is big and tire is less, load-bearing and characteristics such as speed is limited, manufacturing process is simple relatively to have a wheel rim.With the bicycle is example, and China is universally acknowledged bikedom, and bicycle output and social recoverable amount are sure to occupy the No. 1 in the world.From nineteen ninety-five, the productive output of China's motor bike also leaps to the first in the world, and natural China also is the production and consumption big country of hand cart tyre.

Hand cart tyre is one of important traffic accessory of power mechanical type vehicle (comprising motor bike); For present traditional inflated rubber hand cart tyre itself; Good because of its dynamic property, give birth to characteristics such as heat is low, excellent spring, ride comfort in using and use widely its on power mechanical type vehicle (comprising motor bike), having obtained over more than 100 year of updating, but its defective can not get good solution always.The resistance to abrasion that at first is rubber tire is low, and particularly so-called in the world green tire be low rolling resistance tyre, and the reduction of rolling resistance is a cost with the sacrificial section resistance to abrasion; Next is the carcinogenic pollution due to " black " pollution due to the added reinforcing agent carbon black of rubber tire, heavy metal pollution and the aromatic naphtha; It three is that technique process is complicated in the production process, and three waste discharge is arranged, the continuous rise of rubber raw materials in recent years in addition, and cost increases.In addition; Particularly important a bit is; The inflation hand cart tyre after the birth over more than 100 year; Bringing efficiently with simultaneously easily to the mankind, the infringement of its gas leakage and the use inconvenience that generation caused of blowing out even the person and property is also grown simultaneously along with the growth of the recoverable amount of vehicle and use amount.Generally speaking; So long as air-inflation tyre, potential safety hazards such as its carcass is aging with regard to existing, bulge, cracking, its inner several times even number decuple the crunch of standard atmospheric pressure simultaneously; Under particular surroundings and limiting case, the possibility that all inevitably exists gas leakage even blow out.

Contrast, polyurethane hand cart tyre have high strength, high anti tear, high stability and fatigue resistance, anti-otch increases and thorn resistance, need not add contaminative auxiliary agent and reinforcing agent; The feature of environmental protection is good, and the resistance to abrasion of its polyurethane tread strengthens (resistance to abrasion of Akron abrasion experiment confirm polyurethane is 5～10 times of rubber), long service life greatly; Dynamics indexs such as its hardness of pu tire and elasticity are adjustable by prescription simultaneously, and setting range is big, and technique process is simple; Cost is cheap relatively; The comparable General Purpose Rubber of its modulus of elasticity is high, and it is low to have the anti-collapse coefficient simultaneously, characteristics such as load-carrying capacity height.Pass through the support and the buffer structure of scientific design polyurethane hand cart tyre, can significantly alleviate the architecture quality of polyurethane hand cart tyre, help alleviating the following load of wheel of power mechanical type vehicle (comprising motor bike), improve handling.And the viscosity of casting type polyurethane is low, good fluidity, thereby much simple with its processing technology of making hand cart tyre, available its production exempts to inflate the open architecture polyurethane hand cart tyre of not blowing out.At present, exempt to inflate the open architecture polyurethane hand cart tyre of not blowing out and still belong to blank field in China.

Summary of the invention

Exempt to inflate the open architecture polyurethane hand cart tyre of not blowing out blank field for filling up in China; The invention provides a kind of new hand cart tyre (comprising cycle tyre) selects; Through to the change of the carrying of existing inflation hand cart tyre and buffering structure and rational polyurethane formulations; Reach the advantage that keeps existing inflation hand cart tyre, overcome the purpose of existing inflation hand cart tyre defective, significantly improve the hand cart tyre performance simultaneously; Significantly improve the ability of hand cart tyre service life and reply complex road surface, simultaneously the production technology of reduced force tire and reduce the productive costs of hand cart tyre significantly.

" exempting to inflate the polyurethane open architecture hand cart tyre of not blowing out " (being called for short " hand cart tyre of not blowing out " or " open architecture hand cart tyre " or " open type hand cart tyre ") of the present invention; The elastomeric cushion material of its hand cart tyre adopts rubber or polyurethane; The present invention makes and adopts polyurethane to make hand cart tyre main body---the elastic body of not blowing out, and its tyre surface adopts the polyurethane or the rubber of another prescription.

The said hand cart tyre structure of not blowing out is made up of the polyurethane outer ring part that the polyurethane inner round portion that is wrapped in the hand cart tyre wheel rim and the polyurethane that contacts with ground or rubber tread combine; The diameter of axle of polyurethane inner ring is equal to or less than the diameter of axle of polyurethane outer ring, therebetween by between the inside and outside circle of polyurethane and be parallel to its axial side-looking of the diameter of axle and be down the stay bearing plate of " V " shape or form by being positioned at two wheel rim diameter of axle center lines and being the stay bearing plate that " X " shape intersects perpendicular to the ring-type disc of the two wheel rim diameters of axle and ring-type disc both sides.

The radial cross-section of hand cart tyre of not blowing out is round edge rectangle or fan-shaped, as it is less to be fan-shaped then inner round portion, and the Internal and external cycle part is bonding with polyurethane that contacts with ground or rubber tread with wheel rim respectively.

Radial cross-section at the hand cart tyre of not blowing out is under the situation of round edge rectangle, and between two wheel rims and be parallel to the stay bearing plate that its axial side-looking of the diameter of axle is down " V " shape, its " V " clevis angle is between 10 °-60 °; Being positioned at ring-type disc both sides is the every side of stay bearing plate that " X " shape intersects and inner ring binding site and passes the plane included angle that the radius extended line of this point done and be 10 °-40 °.

Under the radial cross-section of the hand cart tyre of not blowing out is fan-shaped situation; Between two wheel rims and be parallel to every side outer rim of stay bearing plate and the radial plane that its axial side-looking of the diameter of axle is down " V " shape and be 10 °-30 ° angle, its " V " clevis angle is between 10 °-60 °; Be positioned at ring-type disc both sides and be the every side outer rim of stay bearing plate and the radial plane that " X " shape intersects and be 10 °-30 ° angle, be positioned at ring-type disc both sides simultaneously and be the plane included angle that every side of stay bearing plate and the inner ring binding site that " X " shape intersects and the radius extended line that passes this point done and be 10 °-40 °.

Do not blow out in the hand cart tyre; Be positioned at two wheel rim diameter of axle center lines and be plane perpendicular to the ring-type disc of the two wheel rim diameters of axle; It is perpendicular to the pivot center of this tire; And be positioned at the centre of the axial end of said Internal and external cycle circle tube member, and each bar ring-type disc both sides is the stay bearing plate member that " X " shape intersects stretches out from the opposite flank of said ring-type disc member vertically, and stay bearing plate tilts along relative direction simultaneously.Under the radial cross-section of the hand cart tyre of not blowing out was fan-shaped situation, said stay bearing plate stretched out with 10 ° of-30 ° of angles with respect to radial plane.

Under the radial cross-section of the hand cart tyre of not blowing out is fan-shaped situation; Between two wheel rims and be parallel to that its axial side-looking of the diameter of axle is down the stay bearing plate of " V " shape or by being positioned at two wheel rim diameter of axle center lines and being the stay bearing plate that " X " shape is intersected perpendicular to the ring-type disc of the two wheel rim diameters of axle and ring-type disc both sides; The curved surface circle tube member constantly opens to the outer ring from said inner ring circle tube member in the both sides of its stay bearing plate member, so that in an axial plane, be rendered as a fan-shaped cross-sectional plane.

Do not blow out hand cart tyre because the cross section of sector structure can be distributed the power of being born well; When especially on acceleration of power mechanical type lateral direction of car and inclined-plane, going; Tyre surface of the present invention and ground-surface area of contact are along with its elastomeric cushion material is upright to stretching or compressing and maintenance maximization as far as possible; Vehicle stability and earth-grasping force under this type of operating mode have been increased; Avoid the tyre surface and the increase tendency that reduce trend and tyre sidewall kiss the earth of contact area of ground under this type of operating mode of present inflation hand cart tyre, also further strengthened the handling and safety of power mechanical type vehicle (comprising motor bike).

Inflating in the driving process of cycle tyre at present, slower because of the sidewall return of traditional rubber tire, when running at high speed, be prone to like this produce so-called " standing wave " phenomenon, cause tire to be rapidly heated in short-term, generation is blown out.And elastic material used in the present invention is a solid, and the elastic solid return is faster than gas, has good heat dissipation characteristics because of its good open architecture simultaneously; And in manufacturing process, introduced suitable raw material, the polyurethane elastomer heat-resisting quantity that makes is also very good; Remove and do not have the risk of blowing out; Also avoided gathering great amount of heat energy at carcass in short-term and caused other mechanical breakdown, helped motor bike and go for a long time at a high speed, especially with the obvious advantage when racing car.

Simultaneously; The hand cart tyre of not blowing out can effectively avoid inflating at present hand cart tyre, and wearing and tearing strengthen to the both sides tire shoulder when losing gas; And when many gas, cause the situation of crown middle part wearing and tearing aggravation to occur; The tire pressure that also can avoid hand cart tyre in various temperature environment, to cause because of expanding with heat and contract with cold changes, and these situation not only influence to be controlled, and has stayed great potential safety hazard simultaneously.

Do not blow out in the hand cart tyre, the synthetic of said elastomeric material polyurethane performed polymer made by following raw material:

1, oligomer polyol: comprise polyester polyol, polyether glycol, polyolefin polyhydric alcohol etc., between the mol wt 500-6000.

2, diisocyanate and polyisocyanates: comprise toluene diisocyanate (TDI); In '-diphenylmethane diisocyanate (MDI), IPDI (IPDI), naphthalene diisocyanate (NDI), tetramethylbenzene methylene diisocyanate (TMXDI), the hexamethylene diisocyanate (HDI) any; Or at least two kinds combination, preferred MDI and NDI.Polyisocyanates comprises the tripolymer of TDI, MDI, HDI, IPDI.

3, chain extender comprises two types of diamine and diatomic alcohol, diamine chain extenders comprises 3,3 '-dichloro-4,4; 4 '-diphenyl methane diamines (MOCA), basic toluene diamine (DETDA), diformazan sulfenyl toluene diamine (DMTDA) etc., diatomic alcohol comprises ethanediol, propylene glycol, butylene glycols, 1,4-two (2-ethylol) hydroquinones; The 2-methyl isophthalic acid, ammediol, N, N-two (2-hydroxypropyl) aniline etc.; Wherein the diatomic alcohol chain extender only adds very small amount or inapplicable, preferred MOCA.

4, crosslinking agent comprises trimethylolpropane, triisopropanolamine and glycerine etc.

5, other auxiliary agent comprises pigment, filler, hydrolysis stabilizer etc.

6, through pigment is directly mixed with polyalcohol, can obtain versicolor polyurethane open architecture hand cart tyre.

Hand cart tyre synthetic of not blowing out comprise performed polymer production, build and three processes of post curing.

Performed polymer synthesizes production stage:

1. polyester polyols dehydration of alcohols (carrying out in the still) in dehydration

After polyester diol or polyether Glycols heat fused; In the corrosion-resistant steel of being with stirring or enamel still, dewater; Dehydration temperaturre is controlled at 100～140 ℃ (100～110 ℃ of polyethers); (0.67kPa) dehydration 30～60min makes its moisture massfraction＜0.05% (can observe cases of dehydration from visor) under the overbottom pressure.For pot liquid is fully outgased, start-stop mixing device intermittently, take out a period of time vacuum after, can stop the retort heating, make material temperature drop to 70～80 ℃.

2. performed polymer synthesizes (in agitated reactor, carrying out)

Product properties depends on used raw MAT'L and proportioning and processing technology.According to selecting suitable raw MAT'L in performance requriements such as temperature, stressing conditions and contact medium and service life etc., according to hardness require selected appropriate proportioning and technological condition (like mixing temperature, cast and demould time and conditions of vulcanization etc.) more earlier.For guaranteeing the performed polymer quality, polyester dehydration and performed polymer are synthetic preferably not to carry out in same still, and the performed polymer synthetic reaction is carried out under the drying nitrogen protection.For preventing that reaction is violent, temperature rise is too fast, must have cooling mechanism.Charging sequence is for adding isocyanates earlier, after add low molecular weight polyols.As react violent, and the low molecular weight polyols graded adds, and makes course of reaction steady, and temperature of reaction is easy to control, and synthetic performed polymer middle reaches divorce cyanate ester monomer content is lower, and structure is more regular.Temperature remains on 80 ± 5 ℃, reaction 1～2h post analysis NCO content.Isocyano-content is between 3.5-6.5% in the control performed polymer.

3. the performed polymer degassing

Can in the A of performed polymer synthesis reaction vessel or cating machine batch can (depositing the material pot of base polyurethane prepolymer for use as), carry out deaeration 30～60min under 85 ± 5 ℃ and overbottom pressure 0.67kPa.

Build step:

In casting system B batch can (deposit crosslinking agent etc. material pot), add crosslinking agent, chain extender and other auxiliary agent; Start the heating system of each component; Make A, B material all reach requirement temperature and each self-loopa, the A material can carry out vacuum degasification earlier as needing, and reaching does not have bubble in the performed polymer.Through regulating the rotating speed and the discharge capacity of measuring pump, make A, B material meet the requirements of mixture ratio by the prescription requirement.Start the cast button, then A, B material make it to mix through high-revolving mixing in the hybrid chamber of pouring head, when the mixture of discharging does not contain bubble in transparent hose, can in mould, not pour into a mould.When cast stopped, A, B stoste promptly transferred recurrent state separately automatically to, got back to separately in the batch can.

At first build Internal and external cycle and support system when building, build the tyre surface system again.

Slaking and post-processing:

The moulding slaking

In mould, should carry out maturation process before the demoulding of open architecture hand cart tyre; Curing temperature can be chosen under the prerequisite that its chemical constitution do not destroy higher as far as possible; To accelerate the chain extension-crosslinking reaction, shorten demould time, improve mould and capacity utilization rate; Often with 100～120 ℃, 12～24h is advisable.

Concrete preparation manipulation

Synthesizing of Internal and external cycle and support system performed polymer:

System is synthetic according to conventional approach; Wherein, the oligomer diatomic alcohol is the polyester diol of mol wt at 1000-4000, and the isocyanates of employing is MDI or TDI or the compound of the two; Isocyanates accounts between the 5-8% of total amount, guarantees that the content of the isocyano of performed polymer is between the 3.5-4.5.

Synthesizing of tyre surface system performed polymer:

System is synthetic according to conventional approach; Wherein, the oligomer diatomic alcohol is polyester diol or the polyether Glycols of mol wt at 1000-2000, and the isocyanates of employing is NDI; Isocyanates accounts between the 10-30% of total amount, guarantees that the content of the isocyano of performed polymer is between the 4.5-6.5.

The preparation of open architecture hand cart tyre:

Two kinds of performed polymers are moved to respectively in the polyurethane elastomer casting machine A jar, be heated to 80～90 ℃, be evacuated to deaeration 30～60min under the overbottom pressure 0.67kPa.Chain extender, crosslinking agent etc. is moved in the B jar, measure in the performed polymer isocyano-content and by the chain extension coefficient calculating performed polymer of setting and the ratio of chain extender consumption, and regulate the measuring pump of two jars of cating machine A, B in proportion in conventional approach.

The wheel rim of hand cart tyre is placed in the hand cart tyre mould that is preheated to 110～130 ℃, at first starts the cating machine of Internal and external cycle and support system and pour into a mould, start tyre surface system cating machine behind the casting complete and pour into a mould.Depanning behind the insulation 90-120min behind the casting complete will be poured into a mould good hand cart tyre again and placed 110～130 ℃ baking oven matured 24h, promptly make polyurethane open architecture hand cart tyre.

The material rerum natura table of Internal and external cycle and support system and tyre surface system

Physical property	Internal and external cycle and support system	The tyre surface system
			Hardness	60D	87A
Peel strength (kN/m)	76	92
			Breaking elongation (%)	360	540
100% tensile modulus (MPa)	18	11
			Compression set (%)	16	20
Abrasion loss (mg)	13	9.0

The present invention is not limited only to use in power mechanical type vehicle (comprising motor bike) field, relates in the wheel machine that present small-sized low speed tire uses (like wheelchair, perambulator etc.) at all and all can use the present invention and reach the effect that advantage avoids taking turns at present tyre defect of developing.

Through reading above description; Can be well understood to characteristic of the present invention; And the utilization of these characteristics through different new material new process can be separately or combined with other characteristics and to form more multiple bright basis, thereby in implementation process of the present invention, obtains further perfect.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further described.

Fig. 1 is that the vertical shaft of the wherein a kind of tire in the open architecture hand cart tyre of not blowing out according to the invention is to schematic side view.

Fig. 2 is that the vertical shaft of the wherein another kind of tire in the open architecture hand cart tyre of not blowing out according to the invention is to schematic side view.

Fig. 3 is the sectional drawing (i.e. cross sectional drawing that is installed in the hand cart tyre on the hand cart tyre wheel rim and is done along the tangent line among Fig. 1 (9)) of tangent line among Fig. 1 (9).

Fig. 4 is the another kind of sectional drawing (the promptly another kind of cross sectional drawing that is installed in the hand cart tyre on the hand cart tyre wheel rim and is done along the tangent line among Fig. 1 (9)) of tangent line among Fig. 1 (9).

Fig. 5 is the sectional drawing (i.e. cross sectional drawing that is installed in the hand cart tyre on the wheel rim and is done along the tangent line among Fig. 1 (8)) of tangent line among Fig. 1 (8).

Fig. 6 is the another kind of sectional drawing (the promptly another kind of cross sectional drawing that is installed in the hand cart tyre on the wheel rim and is done along the tangent line among Fig. 1 (8)) of tangent line among Fig. 1 (8).

Fig. 7 is the sectional drawing (i.e. cross sectional drawing that is installed in the hand cart tyre on the wheel rim and is done along the tangent line among Fig. 2 (14)) of tangent line among Fig. 2 (14).

Fig. 8 is the another kind of sectional drawing (the promptly another kind of cross sectional drawing that is installed in the hand cart tyre on the wheel rim and is done along the tangent line among Fig. 2 (14)) of tangent line among Fig. 2 (14).

Fig. 9 is the sectional drawing (i.e. cross sectional drawing that is installed in the hand cart tyre on the wheel rim and is done along the tangent line among Fig. 2 (13)) of tangent line among Fig. 2 (13).

Figure 10 is the another kind of sectional drawing (the promptly another kind of cross sectional drawing that is installed in the hand cart tyre on the wheel rim and is done along the tangent line among Fig. 2 (13)) of tangent line among Fig. 2 (13).

Figure 11 is the thin bilge construction enlarged drawing in Fig. 1 dotted circle.

Figure 12 is the thin bilge construction enlarged drawing in Fig. 2 dotted circle.

In these accompanying drawings, identical label is represented same part or similar portions, wherein:

1. hand cart tyre wheel rim;

2. polyurethane inner ring;

3. polyurethane outer ring;

4. polyurethane or rubber tread;

5. polyurethane stay bearing plate (specific descriptions are: between the inside and outside circle of polyurethane and be parallel in the stay bearing plate that its axial side-looking of the diameter of axle is down " V " shape);

6. polyurethane stay bearing plate (specific descriptions are: be arranged in polyurethane inside and outside circle diameter of axle center line and look of side stay bearing plate perpendicular to what the ring-type disc both sides of the inside and outside circle diameter of axle of polyurethane were stay bearing plate that " X " shape intersects);

7. angle 1 (specific descriptions are: between the inside and outside circle of polyurethane and be parallel to stay bearing plate formed " V " the clevis angle that its axial side-looking of the diameter of axle is down " V " shape, its angle is between 10 °-60 °);

8. tangent plane 1 (specific descriptions are: pass the hand cart tyre center of circle and fall two sectional drawings that arbitrary stay bearing plate mid point in " V " shape stay bearing plate done, sectional drawing is seen Fig. 5, Fig. 6);

9. tangent plane 2 (specific descriptions are: vertically pass down the sectional drawing that arbitrary stay bearing plate in " V " shape stay bearing plate done, sectional drawing is seen Fig. 3, Fig. 4);

10. polyurethane stay bearing plate (specific descriptions are: be arranged in polyurethane inside and outside circle diameter of axle center line and be of offside stay bearing plate of the stay bearing plate that " X " shape intersects perpendicular to the ring-type disc both sides of the inside and outside circle diameter of axle of polyurethane, be represented by dotted lines);

11. the radius extended line of hand cart tyre;

12. angle 2 (specific descriptions are: be positioned at ring-type disc both sides and be the every side of stay bearing plate that " X " shape intersects and inner ring binding site and pass the plane included angle that the radius extended line of this point is done, its angle is between 10 °-40 °);

13. tangent plane 3 (specific descriptions are: pass the hand cart tyre center of circle and be arranged in polyurethane inside and outside circle diameter of axle center line and be the sectional drawing that " X " shape point of crossing of the stay bearing plate that " X " shape intersects is done perpendicular to the ring-type disc both sides of the inside and outside circle diameter of axle of polyurethane, sectional drawing is seen Fig. 9, Figure 10);

14. (specific descriptions are tangent plane 4: pass and be positioned at polyurethane inside and outside circle diameter of axle center line and be the hand cart tyre sectional drawing that stay bearing plate that " X " shape intersects is formed perpendicular to the ring-type disc both sides of the inside and outside circle diameter of axle of polyurethane; It is looked side sections and fully vertically passes one that looks in the side stay bearing plate, and sectional drawing is seen Fig. 7, Fig. 8);

15. the hand cart tyre center of circle;

16. polyurethane stay bearing plate (specific descriptions are: fall vertical omniplance of a stay bearing plate in " V " shape stay bearing plate);

17. angle 3 (specific descriptions are: between the inside and outside circle of polyurethane and be parallel to its axial side-looking of the diameter of axle and be down the every side outer rim of stay bearing plate of " V " shape and the angle of radial plane, its angle is between 10 °-30 °);

18. polyurethane stay bearing plate (specific descriptions are: pass the hand cart tyre center of circle and reach a diagonal plane that stay bearing plate is done along mid point in " V " shape stay bearing plate);

19. hand cart tyre radial plane;

20. ring-type disc (specific descriptions are: be positioned at polyurethane inside and outside circle diameter of axle center line and perpendicular to the ring-type disc of the two wheel rim diameters of axle);

21. look side stay bearing plate (specific descriptions are: be arranged in ring-type disc both sides and be the stay bearing plate that " X " shape intersects and look wherein vertical omniplance of a stay bearing plate of side);

22. offside stay bearing plate (specific descriptions are: be arranged in ring-type disc both sides and be stay bearing plate that " X " shape intersects to the side part tangent plane of a stay bearing plate wherein);

23. angle 4 (specific descriptions are: be positioned at ring-type disc both sides and be the every side outer rim of stay bearing plate of " X " shape intersection and the angle of radial plane, its angle is between 10 °-30 °);

24. polyurethane stay bearing plate (specific descriptions are: pass the hand cart tyre center of circle and be arranged in ring-type disc both sides be the stay bearing plate that " X " shape intersects and look wherein diagonal plane that stay bearing plate is done along mid point of side);

25. polyurethane stay bearing plate (specific descriptions are: pass the hand cart tyre center of circle and be arranged in ring-type disc both sides be stay bearing plate that " X " shape intersects) to side diagonal plane that stay bearing plate is done along mid point wherein;

26. flange (specific descriptions are: be positioned at the both sides outer rim of hand cart tyre wheel rim outside face and be higher than the flange of wheel rim outside face);

The specific embodiment

Below in conjunction with accompanying drawing, introduce most preferred embodiment of the present invention, make the purpose and the advantage of above-mentioned elaboration of the present invention and embodiment of the present invention clearer.

Fig. 1 for the vertical shaft of the wherein a kind of tire in the open architecture hand cart tyre of not blowing out according to the invention to schematic side view.In actual product; Because of the polyurethane outer ring (3) of hand cart tyre and polyurethane or rubber tread (4) are an aduncate curved surface and make the polyurethane stay bearing plate (5) of vertical shaft in side-looking face by partial occlusion; Therefore this vertical shaft is an imaginary drawing to schematic side view; The polyurethane outer ring (3) of setting hand cart tyre and polyurethane or rubber tread (4) are transparence, so that the present invention can more conveniently show and set forth its inner structure more intuitively.

On the hand cart tyre wheel rim (1) of flanged pin (26); Be equipped with by polyurethane inner ring (2), polyurethane outer ring (3) and be positioned between the inside and outside circle of polyurethane (2) (3) and and be down the hand cart tyre system that polyurethane stay bearing plate (5) of " V " shape and the polyurethane that combines with polyurethane outer ring (3) or rubber tread (4) are formed with its axial side-looking of the diameter of axle that is parallel to of the inside and outside circle of polyurethane (2) (3) combination; Polyurethane stay bearing plate (5) formed " V " the clevis angle 1 (7) that it falls " V " shape; Its angle is between 10 °-60 °; And polyurethane stay bearing plate (5) formed " V " clevis angle 1 (7) angle of all " V " shapes is identical; In most preferred embodiment, the scope of angle 1 (7) is preferably between 40 °-65 °.The inside and outside circle of said polyurethane (2) (3), polyurethane stay bearing plate (5) and polyurethane tread (4) are as a whole; Be on the hand cart tyre shaping dies at twice moulding by casting form; In casting process, the wheel rim of hand cart tyre (1) is positioned in the hand cart tyre mould together to be poured into a mould with polyurethane.At first pour into a mould the support system (being inside and outside circle of said polyurethane (2) (3) and polyurethane stay bearing plate (5)) of hand cart tyre, the tyre surface system (" tyre surface " here refers in particular to polyurethane tread (4)) of pouring into a mould hand cart tyre behind the casting complete again.Among another embodiment; The inside and outside circle of said polyurethane (2) (3), polyurethane stay bearing plate (5) and rubber tread (4) are as a whole equally; At first on the hand cart tyre shaping dies, pour into a mould the support system (being inside and outside circle of said polyurethane (2) (3) and polyurethane stay bearing plate (5)) of hand cart tyre; Again rubber tread (4) is bonded on the polyurethane outer ring (3) behind the casting complete, thereby form a hand cart tyre integral structure that comprises wheel rim.

Fig. 2 for the vertical shaft of the wherein another kind of tire in the open architecture hand cart tyre of not blowing out according to the invention to schematic side view.Equally in actual product; Because of the polyurethane outer ring (3) of hand cart tyre and polyurethane or rubber tread (4) are an aduncate curved surface and make the polyurethane stay bearing plate (6) (10) of vertical shaft in side-looking face by partial occlusion; Therefore this vertical shaft is an imaginary drawing to schematic side view; The polyurethane outer ring (3) of setting hand cart tyre and polyurethane or rubber tread (4) are transparence, so that the present invention can more conveniently show and set forth its inner structure more intuitively.

Equally on the hand cart tyre wheel rim (1) of flanged pin (26); Be equipped with by polyurethane inner ring (2), polyurethane outer ring (3) and be positioned between the inside and outside circle of polyurethane (2) (3) and be positioned at two wheel rim diameter of axle center lines and be the hand cart tyre system that polyurethane stay bearing plate (6) (10) that " X " shape intersects and the polyurethane that combines with polyurethane outer ring (3) or rubber tread (4) thereof are formed perpendicular to the ring-type disc (20) of the two wheel rim diameters of axle and ring-type disc (20) both sides with the inside and outside circle of polyurethane (2) (3) combines; Its said ring-type disc (20) is and the identical polyurethane of said polyurethane stay bearing plate (6) (10) composition; And combine with said polyurethane stay bearing plate (6) (10); Its said ring-type disc (20) both sides are the every side of polyurethane stay bearing plate (6) (10) and polyurethane inner ring (2) binding site and the formed plane included angle 2 (12) of radius extended line (11) of passing this point that " X " shape is intersected; Its angle is between 10 °-40 °; And all are positioned at two wheel rim diameter of axle center lines and are the every side of polyurethane stay bearing plate (6) (10) that " X " shape intersects and polyurethane inner ring (2) binding site and pass the formed plane included angle of radius extended line (11) 2 (12) angles of this point identical perpendicular to ring-type disc (20) both sides of the two wheel rim diameters of axle; In most preferred embodiment, the scope of angle 2 (12) is preferably between 25 °-40 °.It is as a whole that the inside and outside circle of said polyurethane (2) (3), ring-type disc (20) and ring-type disc (20) both sides are polyurethane stay bearing plate (6) (10) and polyurethane tread (4) that " X " shape intersects, be equally on the hand cart tyre shaping dies at twice moulding by casting form.And in another embodiment; It is as a whole equally that the inside and outside circle of said polyurethane (2) (3), ring-type disc (20) and ring-type disc (20) both sides are polyurethane stay bearing plate (6) (10) and rubber tread (4) that " X " shape intersects; At first on the hand cart tyre shaping dies, pour into a mould the support system (being that the inside and outside circle of said polyurethane (2) (3), ring-type disc (20) and ring-type disc (20) both sides are the polyurethane stay bearing plate (6) (10) that " X " shape is intersected) of hand cart tyre; Again rubber tread (4) is bonded on the polyurethane outer ring (3) behind the casting complete, thereby form the hand cart tyre integral structure that another comprises wheel rim (1).Said ring-type disc (20) is on the die joint of hand cart tyre shaping dies, to form, thereby is positioned on the medium line of the inside and outside circle of polyurethane (2) (3) axial end.Because said ring-type disc (20) is " fash " on the mould die joint; Therefore said ring-type disc (20) is the polyurethane diaphragm of a thin tool retractility; In ring-type disc (20) both sides are the polyurethane stay bearing plates (6) (10) that " X " shape is intersected that are that combine with ring-type disc (20); All stay bearing plates of every side (6) are with same angle tilt along same direction; And offside stay bearing plate (10) is in opposite direction with same angle tilt, and the axial side-looking of supported on both sides plate (6) (10) is " X " shape and intersects.

Fig. 3, Fig. 4 scheme (i.e. cross sectional drawing that is installed in the hand cart tyre on the wheel rim (1) and is done along the tangent line among Fig. 1 (9)) for the tangent plane 2 of Fig. 1 tangent line (9) in the hand cart tyre of not blowing out according to the invention.As previously mentioned, the radial cross-section of the hand cart tyre of not blowing out is round edge rectangle or fan-shaped, so the radial cross-section for the hand cart tyre of not blowing out that Fig. 3, Fig. 4 set forth is the structural relation under round edge rectangle or the fan-shaped situation.

In Fig. 1; The hand cart tyre omniplance figure that is done along tangent line (9) sees Fig. 3, Fig. 4; Wherein, On the hand cart tyre wheel rim (1) of flanged pin (26); Be equipped with by polyurethane inner ring (2), polyurethane outer ring (3) and be arranged between the inside and outside circle of polyurethane (2) (3) and be parallel to vertical omniplance (16) and the polyurethane that combines with polyurethane outer ring (3) or the cross sectional drawing of the hand cart tyre that rubber tread (4) is formed of a stay bearing plate that its axial side-looking of the diameter of axle is down the polyurethane stay bearing plate (5) of " V " shape with the inside and outside circle of polyurethane (2) (3) combines; Polyurethane inner ring (2) is installed in the outside face of hand cart tyre wheel rim (1) and is positioned at wheel rim (1) outside face both sides and is higher than between the flange (26) of wheel rim (1) outside face, like this in the use of hand cart tyre since have flange (26) stop and " seize on both sides by the arms " effect; Under extreme condition of service, hand cart tyre is unlikely to be gone up the generation displacement and forms so-called " knocking over " phenomenon at wheel rim (1).

In Fig. 3; Can see coaxial with polyurethane outer ring (3) and width is identical because of the polyurethane inner ring (2) in the hand cart tyre; The width of polyurethane inner ring (2) (promptly along the axis direction length measured) is that to face directly and equal be the width (straight length of promptly measuring along axis direction) of polyurethane outer ring (3) of a curved surface; Therefore each bar is positioned between the inside and outside circle of polyurethane (2) (3) and is parallel to the hand cart tyre omniplance that polyurethane stay bearing plate (5) that its axial side-looking of the diameter of axle is down " V " shape done along tangent line (9) and is the round edge rectangle, and said polyurethane stay bearing plate (5) combines with polyurethane inner ring (2) and polyurethane outer ring (3) respectively.

In Fig. 4; Can see equally because of the polyurethane inner ring (2) in the hand cart tyre is coaxial with polyurethane outer ring (3) but width is different; The width of polyurethane inner ring (2) (promptly along the axis direction length measured) is to face directly and less than the width (straight length of promptly measuring along axis direction) that is the polyurethane outer ring (3) of a curved surface; Therefore each bar is positioned between the inside and outside circle of polyurethane (2) (3) and is parallel to the hand cart tyre omniplance that polyurethane stay bearing plate (5) that its axial side-looking of the diameter of axle is down " V " shape done along tangent line (9) and is fan-shaped; Nearly wheel rim (1) part is less, and said polyurethane stay bearing plate (5) combines with polyurethane inner ring (2) and polyurethane outer ring (3) respectively.

Fig. 5, Fig. 6 scheme (i.e. cross sectional drawing that is installed in the hand cart tyre on the wheel rim (1) and is done along the tangent line among Fig. 1 (8)) for the tangent plane 1 of Fig. 1 tangent line (8) in the hand cart tyre of not blowing out according to the invention.As previously mentioned, the radial cross-section of the hand cart tyre of not blowing out is round edge rectangle or fan-shaped, so the radial cross-section for the hand cart tyre of not blowing out that Fig. 5, Fig. 6 set forth is the structural relation under round edge rectangle or the fan-shaped situation.

In Fig. 1; The hand cart tyre omniplance figure that is done along tangent line (8) sees Fig. 5, Fig. 6; Wherein, On the hand cart tyre wheel rim (1) of flanged pin (26); Be equipped with by polyurethane inner ring (2), polyurethane outer ring (3) and be arranged between the inside and outside circle of polyurethane (2) (3) and be down one of polyurethane stay bearing plate (5) of " V " shape by the cross sectional drawing that passes the hand cart tyre that diagonal plane (18) that the hand cart tyre center of circle (15) and said this stay bearing plate do along mid point and the polyurethane that combines with polyurethane outer ring (3) or rubber tread (4) formed with its axial side-looking of the diameter of axle that is parallel to that the inside and outside circle of polyurethane (2) (3) combines, polyurethane inner ring (2) is installed in the outside face of hand cart tyre wheel rim (1) and is positioned at wheel rim (1) outside face both sides and is higher than between the flange (26) of wheel rim (1) outside face.Cut arbitrary polyurethane stay bearing plate (5) because of passing the hand cart tyre center of circle (15) and falling diagonal plane (18) part that a stay bearing plate in " V " shape stay bearing plate does along mid point, so the polyurethane stay bearing plate (5) among Fig. 1 shows as part tangent plane (18).

In like manner; In Fig. 5; Coaxial with polyurethane outer ring (3) and width is identical because of the polyurethane inner ring (2) in the hand cart tyre; The width of polyurethane inner ring (2) (promptly along the axis direction length measured) is that to face directly and equal be the width (straight length of promptly measuring along axis direction) of polyurethane outer ring (3) of a curved surface; Pass the tire center of circle (15) and fall the diagonal plane (18) that a stay bearing plate in " V " shape stay bearing plate does along mid point rectangular, said polyurethane stay bearing plate (18) combines with polyurethane inner ring (2) and polyurethane outer ring (3) respectively.

In Fig. 6; Can see equally because of the polyurethane inner ring (2) in the hand cart tyre is coaxial with polyurethane outer ring (3) but width is different; The width of polyurethane inner ring (2) (promptly along the axis direction length measured) is to face directly and less than the width (straight length of promptly measuring along axis direction) that is the polyurethane outer ring (3) of a curved surface; Therefore each bar is positioned between the inside and outside circle of polyurethane (2) (3) and is parallel to polyurethane stay bearing plate (5) radial cross-section that its axial side-looking of the diameter of axle is down " V " shape and is trapezoidal; So pass the hand cart tyre center of circle (15) and fall the diagonal plane (18) that a stay bearing plate in " V " shape stay bearing plate does along mid point and be trapezoidal; Nearly wheel rim (1) part is less, and said polyurethane stay bearing plate (18) combines with polyurethane inner ring (2) and polyurethane outer ring (3) respectively.The extended line of the trapezoidal outer rim in both sides of the trapezoidal cross-section (18) of the said polyurethane stay bearing plate in edge and the radial plane (19) of tire intersect in the hand cart tyre center of circle (15); Formed plane included angle 3 (17); Its angle is between 10 °-30 °; And it is identical to intersect formed plane included angle 3 (17) angles in the radial plane (19) of the extended line of the trapezoidal outer rim in both sides of passing the trapezoidal diagonal plane (18) that the hand cart tyre center of circle and stay bearing plate do along mid point and hand cart tyre in the hand cart tyre center of circle (15) along all polyurethane stay bearing plates (5); In most preferred embodiment, the scope of angle 3 (17) is preferably between 20 °-30 °.

Fig. 7, Fig. 8 scheme (i.e. cross sectional drawing that is installed in the hand cart tyre on the wheel rim (1) and is done along the tangent line among Fig. 2 (14)) for the tangent plane 4 of Fig. 2 tangent line (14) in the hand cart tyre of not blowing out according to the invention.As previously mentioned, the radial cross-section of the hand cart tyre of not blowing out is round edge rectangle or fan-shaped, so the radial cross-section for the hand cart tyre of not blowing out that Fig. 7, Fig. 8 set forth is the structural relation under round edge rectangle or the fan-shaped situation.

In Fig. 2; The hand cart tyre omniplance figure that does along the tangent line of (14) sees Fig. 7, Fig. 8; Wherein, On the hand cart tyre wheel rim (1) of flanged pin (26); Be equipped with by polyurethane inner ring (2), polyurethane outer ring (3) and be arranged between the inside and outside circle of polyurethane (2) (3) and be positioned at the inside and outside circle of polyurethane (2) (3) diameter of axle center line and be stay bearing plate (6) (10) that " X " shape intersects that it looks the cross sectional drawing that side sections is fully vertically passed the hand cart tyre that tangent plane that (21) looking the side stay bearing plate are generated and the polyurethane that combines with polyurethane outer ring (3) or rubber tread (4) formed perpendicular to ring-type disc (20) both sides of the inside and outside circle of polyurethane (2) (3) diameter of axle with passing of combining of the inside and outside circle of polyurethane (2) (3); Same polyurethane inner ring (2) is installed in the outside face of hand cart tyre wheel rim (1) and is positioned at wheel rim (1) outside face both sides and is higher than between the flange (26) of wheel rim (1) outside face; Like this in the use of hand cart tyre; Because stopping and " seizing on both sides by the arms " effect of flange (26) arranged, under extreme condition of service, hand cart tyre is unlikely to be gone up the generation displacement and forms so-called " knocking over " phenomenon at wheel rim (1).

In Fig. 7, Fig. 8; Because Fig. 2 tangent line (14) passes and is arranged in the inside and outside circle of polyurethane (2) (3) diameter of axle center line and is stay bearing plate (6) (10) that " X " shape intersects perpendicular to ring-type disc (20) both sides of the inside and outside circle of polyurethane (2) (3) diameter of axle that it is looked side sections and fully vertically passes a sectional drawing that (21) are generated looking the side stay bearing plate; So in Fig. 7, Fig. 8; Look the side stay bearing plate and present a complete omniplance figure (21); What the offside stay bearing plate appeared is part tangent plane (22), is looking, is being to be positioned at the inside and outside circle of polyurethane (2) (3) diameter of axle center line and perpendicular to the omniplance (20) of the ring-type disc of the inside and outside circle of polyurethane (2) (3) diameter of axle between the offside stay bearing plate (21) (22).

In Fig. 7; Because the polyurethane inner ring (2) in the hand cart tyre is coaxial with polyurethane outer ring (3) and width is identical; The width of polyurethane inner ring (2) (promptly along the axis direction length measured) is that to face directly and equal be the width (straight length of promptly measuring along axis direction) of polyurethane outer ring (3) of a curved surface; Therefore look, the outer side edges of offside polyurethane stay bearing plate tangent plane (21) (22) becomes all or part of of whole round edge rectangle tangent plane dual-side respectively, saidly look, offside polyurethane stay bearing plate (21) (22) be positioned at the inside and outside circle of polyurethane (2) (3) diameter of axle center line and combine and combine with polyurethane inner ring (2) and polyurethane outer ring (3) respectively perpendicular to the ring-type disc (20) of the inside and outside circle of polyurethane (2) (3) diameter of axle.

In Fig. 8; It is same because the polyurethane inner ring (2) in the hand cart tyre is coaxial with polyurethane outer ring (3) but width is different; The width of polyurethane inner ring (2) (promptly along the axis direction length measured) is to face directly and less than the width (straight length of promptly measuring along axis direction) that is the polyurethane outer ring (3) of a curved surface; Therefore look, the outer side edges of offside polyurethane stay bearing plate tangent plane (21) (22) becomes all or part of of whole fan-shaped tangent plane two hypotenuses respectively; Look, nearly wheel rim (1) part of offside stay bearing plate tangent plane (21) (22) is less, saidly look, offside polyurethane stay bearing plate (21) (22) be positioned at the inside and outside circle of polyurethane (2) (3) diameter of axle center line and combine and combine with polyurethane inner ring (2) and polyurethane outer ring (3) respectively perpendicular to the ring-type disc (20) of the inside and outside circle of polyurethane (2) (3) diameter of axle.

Fig. 9, Figure 10 scheme (i.e. cross sectional drawing that is installed in the hand cart tyre on the wheel rim (1) and is done along the tangent line among Fig. 2 (13)) for the tangent plane 3 of Fig. 2 tangent line (13) in the hand cart tyre of not blowing out according to the invention.As previously mentioned, the radial cross-section of the hand cart tyre of not blowing out is round edge rectangle or fan-shaped, so the radial cross-section for the hand cart tyre of not blowing out that Fig. 9, Figure 10 set forth is the structural relation under round edge rectangle or the fan-shaped situation.

In Fig. 2; The hand cart tyre omniplance figure that is done along tangent line (13) sees Fig. 9, Figure 10; Wherein, On the hand cart tyre wheel rim (1) of flanged pin (26); Be equipped with by polyurethane inner ring (2), polyurethane outer ring (3) and be arranged between the inside and outside circle of polyurethane (2) (3) and with the inside and outside circle of polyurethane (2) (3) combine by passing the tire center of circle (15) and be positioned at the inside and outside circle of polyurethane (2) (3) diameter of axle center line and be the cross sectional drawing of the hand cart tyre that tangent plane that " X " shape point of crossing of the stay bearing plate (6) (10) that " X " shape intersects done and the polyurethane that combines with polyurethane outer ring (3) or rubber tread (4) formed perpendicular to ring-type disc (20) both sides of the inside and outside circle of polyurethane (2) (3) diameter of axle, polyurethane inner ring (2) is installed in the outside face of wheel rim (1) and is positioned at wheel rim (1) outside face both sides and is higher than between the flange (26) of wheel rim (1) outside face.Partly cut and be arranged in the inside and outside circle of polyurethane (2) (3) diameter of axle center line and be the polyurethane stay bearing plate (24) (25) that arbitrary group of " X " shape of the stay bearing plate (6) (10) that " X " shape intersects intersected because of passing the hand cart tyre center of circle (15) and being arranged in the inside and outside circle of polyurethane (2) (3) diameter of axle center line and being tangent plane that " X " shape point of crossing of the stay bearing plate (6) (10) that " X " shape intersects done perpendicular to the ring-type disc (20) of the inside and outside circle of polyurethane (2) (3) diameter of axle and ring-type disc (20) both sides perpendicular to ring-type disc (20) both sides of the inside and outside circle of polyurethane (2) (3) diameter of axle; Therefore looking among Fig. 9, Figure 10, offside polyurethane stay bearing plate show as part tangent plane (24) (25), looking, be to be positioned at the inside and outside circle of polyurethane (2) (3) diameter of axle center line and perpendicular to the omniplance (20) of the ring-type disc of the inside and outside circle of polyurethane (2) (3) diameter of axle between the offside stay bearing plate (24) (25).

Equally; In Fig. 9; Coaxial with polyurethane outer ring (3) and width is identical because of the polyurethane inner ring (2) in the hand cart tyre; The width of polyurethane inner ring (2) (promptly along the axis direction length measured) is that to face directly and equal be the width (straight length of promptly measuring along axis direction) of polyurethane outer ring (3) of a curved surface; Therefore each group outer side edges of being positioned between the inside and outside circle of polyurethane (2) (3) looking of being in said ring-type disc (20) both sides that " X " shape intersects, offside polyurethane stay bearing plate tangent plane (24) (25) becomes the part of whole round edge rectangle tangent plane dual-side respectively, saidly look, offside polyurethane stay bearing plate (24) (25) be positioned at the inside and outside circle of polyurethane (2) (3) diameter of axle center line and combine and combine with polyurethane inner ring (2) and polyurethane outer ring (3) respectively perpendicular to the ring-type disc (20) of the inside and outside circle of polyurethane (2) (3) diameter of axle.

In Figure 10; Same because of the polyurethane inner ring (2) in the hand cart tyre is coaxial with polyurethane outer ring (3) but width is different; The width of polyurethane inner ring (2) (promptly along the axis direction length measured) is to face directly and less than the width (straight length of promptly measuring along axis direction) that is the polyurethane outer ring (3) of a curved surface; Therefore each group outer side edges of being positioned between the inside and outside circle of polyurethane (2) (3) looking of being in said ring-type disc (20) both sides that " X " shape intersects, offside polyurethane stay bearing plate tangent plane (24) (25) becomes the part of whole fan-shaped tangent plane two hypotenuses respectively; Look, nearly wheel rim (1) part of offside stay bearing plate tangent plane (24) (25) is less, saidly look, offside polyurethane stay bearing plate (24) (25) be positioned at the inside and outside circle of polyurethane (2) (3) diameter of axle center line and combine and combine with polyurethane inner ring (2) and polyurethane outer ring (3) respectively perpendicular to the ring-type disc (20) of the inside and outside circle of polyurethane (2) (3) diameter of axle.Be along said ring-type disc (20) both sides that " X " shape intersects look, the extended line of the trapezoidal outer rim in trapezoidal tangent plane both sides that offside polyurethane stay bearing plate tangent plane (24) (25) is formed is crossing in the hand cart tyre center of circle (15) with the radial plane (19) of tire; Formed plane included angle 4 (23); Its angle is between 10 °-30 °; And pass the tire center of circle (15) and be arranged in the inside and outside circle of polyurethane (2) (3) diameter of axle center line and be the radial plane (19) of extended line and hand cart tyre of the trapezoidal outer rim in both sides of the trapezoidal diagonal plane of combination (24) (25) that " X " shape point of crossing of the stay bearing plate (6) (10) that " X " shape intersects done perpendicular to ring-type disc (20) both sides of the inside and outside circle of polyurethane (2) (3) diameter of axle that 4 (23) angles are identical in the hand cart tyre center of circle (15) crossing formed plane included angle along all; In most preferred embodiment, the scope of angle 4 (23) is preferably between 20 °-30 °.

Preparation and forming method that two following embodiments have been introduced the open architecture hand cart tyre of not blowing out in detail (are the preparation and the forming method of polyurethane support system and polyurethane tread system; Because of rubber tread is known maturation process technology, do not give unnecessary details) at this.

Embodiment 1

Step 1: Internal and external cycle and support system performed polymer synthetic

Take by weighing mean molecular weight and be 2000 poly adipate succinic acid ester glycol 80 weight portions, in lemon yellow 0.0001 part of input agitated reactor, be heated to 110-130 ℃; Being evacuated to overbottom pressure is 0.67Kpa, removes moisture 2 hours, is cooled to 60-70 ℃; Drop into methyl diphenylene diisocyanate 25.37 weight portions, progressively be warming up to 80 ℃, reacted 2 hours; Surveying isocyanate radical content is 4.9%, promptly makes Internal and external cycle and base polyurethane prepolymer for use as is used in support.

Step 2: tyre surface system polyurethane performed polymer synthetic

Take by weighing mean molecular weight and be 2000 polycaprolactone glycol 50 weight portions, mol wt is 1000 polytetrahydrofuran diol 20 weight portions, drops in the agitated reactor; Be heated to 110-130 ℃, being evacuated to overbottom pressure is 0.67Kpa, removes moisture 2 hours; Be cooled to 60-70 ℃, drop into methyl diphenylene diisocyanate 27.15 weight portions, progressively be warming up to 80 ℃; Reacted 2 hours, surveying isocyanate radical content is 5.5%, promptly makes tyre surface and uses base polyurethane prepolymer for use as.

Step 3: the preparation of open type hand cart tyre

The base polyurethane prepolymer for use as of step 1 preparation is moved in the A jar of polyurethane elastomer casting machine; Be heated to 80 ℃; Be evacuated to overbottom pressure less than 0.67Kpa, deaeration is subsequent use after 30 minutes, and chain extender MOCA is placed in the B jar; Need 15 parts of chain extenders according to 100 parts of performed polymers, adjust polyurethane elastomer casting machine A, B two component measuring pumps in this ratio; The base polyurethane prepolymer for use as of step 2 preparation is moved in the A jar of another polyurethane elastomer casting machine; Be heated to 80 ℃; Be evacuated to overbottom pressure less than 0.67Kpa, deaeration is subsequent use after 30 minutes, and chain extender MOCA is placed in the B jar; Need 16 parts of chain extenders according to 100 parts of performed polymers, adjust polyurethane elastomer casting machine A, B two component measuring pumps in this ratio.

The wheel rim of hand cart tyre is placed in the hand cart tyre mould of 110 ℃ of preheatings; Starting cating machine pours into a mould; At first build the tyre surface system, build Internal and external cycle and support system again, depanning behind the insulation 90-120min behind the casting complete; To pour into a mould good tire again and place 110～130 ℃ baking oven matured 24h, promptly make polyurethane open architecture hand cart tyre.

Embodiment 2

Take by weighing mean molecular weight and be 2000 polycaprolactone glycol 40 weight portions, mol wt is that 2000 poly adipate succinic acid ester glycol 40 weight portions drop in the agitated reactor, is heated to 110-130 ℃; Being evacuated to overbottom pressure is 0.67Kpa, removes moisture 2 hours, is cooled to 60-70 ℃; Drop into methyl diphenylene diisocyanate 50.73 weight portions, progressively be warming up to 80 ℃, reacted 2 hours; Surveying isocyanate radical content is 4.9%, promptly makes Internal and external cycle and base polyurethane prepolymer for use as is used in support.

Step 2: tyre surface system polyurethane performed polymer synthetic.

Take by weighing mean molecular weight and be 2000 poly adipate succinic acid ester glycol 50 weight portions, mol wt is 1000 PolyTHF 20 weight portions, drops in the agitated reactor; Be heated to 110-130 ℃, being evacuated to overbottom pressure is 0.67Kpa, removes moisture 2 hours; Be cooled to 60-70 ℃, drop into methyl diphenylene diisocyanate 27.15 weight portions, progressively be warming up to 80 ℃; Reacted 2 hours, surveying isocyanate radical content is 5.5%, promptly makes tyre surface and uses base polyurethane prepolymer for use as.

Step 3: the preparation of open type hand cart tyre

The base polyurethane prepolymer for use as of step 1 preparation is moved in the A jar of polyurethane elastomer casting machine; Be heated to 80 ℃, be evacuated to overbottom pressure less than 0.67Kpa, deaeration is subsequent use after 30 minutes; Chain extender MOCA and crosslinking agent trimethylolpropane are placed in the B jar; Wherein the ratio of MOCA and trimethylolpropane is 50: 1, stirs, and makes it to mix.Need 15 parts of chain extenders according to 100 parts of performed polymers, adjust polyurethane elastomer casting machine A, B two component measuring pumps in this ratio; The base polyurethane prepolymer for use as of step 2 preparation is moved in the A jar of another polyurethane elastomer casting machine; Be heated to 80 ℃; Be evacuated to overbottom pressure less than 0.67Kpa, deaeration is subsequent use after 30 minutes, and chain extender MOCA is placed in the B jar; Need 16 parts of chain extenders according to 100 parts of performed polymers, adjust polyurethane elastomer casting machine A, B two component measuring pumps in this ratio.

Claims

One kind have support and buffer structure exempt from inflation do not blow out open architecture hand cart tyre (comprising polyurethane hand cart tyre and rubber hand cart tyre) and manufacturing technology thereof, applicable to multi-field power Mechanical Wheeled Vehicle (comprising motor bike) and wheel machine.
2. according to claim 1, described to exempt to inflate the polyurethane hand cart tyre of not blowing out be through the change of the carrying of existing inflation hand cart tyre and buffering structure and rational polyurethane formulations are reached.
3. according to claim 1, the described inflation hand cart tyre of not blowing out of exempting from, the elastomeric cushion material of its tire adopts rubber or polyurethane, and its tyre surface adopts the polyurethane or the rubber of another prescription.
4. according to claim 1; Describedly exempt to inflate the hand cart tyre structure of not blowing out and form by the polyurethane outer ring part that the polyurethane inner round portion that is wrapped in the hand cart tyre wheel rim and the polyurethane that contacts with ground or rubber tread combine; The diameter of axle of polyurethane inner ring is equal to or less than the diameter of axle of polyurethane outer ring, therebetween by between the inside and outside circle of polyurethane and be parallel to its axial side-looking of the diameter of axle and be down the stay bearing plate of " V " shape or form by being positioned at two wheel rim diameter of axle center lines and being the stay bearing plate that " X " shape intersects perpendicular to the ring-type disc of the two wheel rim diameters of axle and ring-type disc both sides;

Said radial cross-section of not blowing out hand cart tyre is round edge rectangle or fan-shaped, as it is less to be fan-shaped then said inner round portion, and said Internal and external cycle part is bonding with polyurethane that contacts with ground or rubber tread with wheel rim respectively;

Radial cross-section at the hand cart tyre of not blowing out is under the situation of round edge rectangle, and between said two wheel rims and be parallel to the stay bearing plate that its axial side-looking of the diameter of axle is down " V " shape, its " V " clevis angle is between 10 °-60 °; Being positioned at ring-type disc both sides is the every side of stay bearing plate that " X " shape intersects and inner ring binding site and passes the plane included angle that the radius extended line of this point done and be 10 °-40 °;

Under the radial cross-section of the hand cart tyre of not blowing out is fan-shaped situation; Between said two wheel rims and be parallel to every side outer rim of stay bearing plate and the radial plane that its axial side-looking of the diameter of axle is down " V " shape and be 10 °-30 ° angle, its " V " clevis angle is between 10 °-60 °; Be positioned at ring-type disc both sides and be the every side outer rim of stay bearing plate and the radial plane that " X " shape intersects and be 10 °-30 ° angle, be positioned at ring-type disc both sides simultaneously and be the plane included angle that every side of stay bearing plate and the inner ring binding site that " X " shape intersects and the radius extended line that passes this point done and be 10 °-40 °;

Do not blow out in the hand cart tyre; Be positioned at said two wheel rim diameter of axle center lines and be plane perpendicular to the ring-type disc of the two wheel rim diameters of axle; It is perpendicular to the pivot center of this tire; And be positioned at the centre of the axial end of said Internal and external cycle circle tube member, and each bar ring-type disc both sides is the stay bearing plate member that " X " shape intersects stretches out from the opposite flank of said ring-type disc member vertically, and stay bearing plate tilts along relative direction simultaneously; Under the radial cross-section of the hand cart tyre of not blowing out was fan-shaped situation, said stay bearing plate stretched out with 10 ° of-30 ° of angles with respect to radial plane;

Under the radial cross-section of the hand cart tyre of not blowing out is fan-shaped situation; Between said two wheel rims and be parallel to that its axial side-looking of the diameter of axle is down the stay bearing plate of " V " shape or by being positioned at said two wheel rim diameter of axle center lines and being the stay bearing plate that " X " shape is intersected perpendicular to the ring-type disc of the two wheel rim diameters of axle and ring-type disc both sides; The curved surface circle tube member constantly opens to the outer ring from said inner ring circle tube member in the both sides of its stay bearing plate member, so that in an axial plane, be rendered as a fan-shaped cross-sectional plane.
5. according to claim 1, the described inflation hand cart tyre of not blowing out of exempting from is in the both sides outer rim that is positioned at the wheel rim outside face and be higher than wheel rim outside face part and be designed with flange.
6. according to claim 1, describedly exempt to inflate the polyurethane hand cart tyre of not blowing out and form by two kinds of different polyurethane materials, wherein be respectively Internal and external cycle and support polyurethane system and tyre surface polyurethane system.
7. according to claim 1, described exempt to inflate do not blow out the manufacturing technology of polyurethane hand cart tyre be two kinds of urethane raws directly cast form.
8. according to claim 1, the described inflation polyurethane hand cart tyre of not blowing out of exempting from is made by following raw material:

1. oligomer polyol: comprise polyester polyol, polyether glycol, polyolefin polyhydric alcohol etc., between the mol wt 500-6000;

2. diisocyanate and polyisocyanates: comprise toluene diisocyanate (TDI); In '-diphenylmethane diisocyanate (MDI), IPDI (IPDI), naphthalene diisocyanate (NDI), tetramethylbenzene methylene diisocyanate (TMXDI), the hexamethylene diisocyanate (HDI) any; Or at least two kinds combination, preferred MDI and NDI.Polyisocyanates comprises the tripolymer of TDI, MDI, HDI, IPDI;

3. chain extender comprises two types of diamine and diatomic alcohol, and diamine chain extenders comprises 3,3 '-two chloro-4; 4 '-diphenyl methane diamines (MOCA), basic toluene diamine (DETDA), diformazan sulfenyl toluene diamine (DMTDA) etc., diatomic alcohol comprises ethanediol, propylene glycol, butylene glycols, 1,4-two (2-ethylol) hydroquinones; The 2-methyl isophthalic acid, ammediol, N, N-two (2-hydroxypropyl) aniline etc.; Wherein the diatomic alcohol chain extender only adds very small amount or inapplicable, preferred MOCA;

4. crosslinking agent comprises trimethylolpropane, triisopropanolamine and glycerine etc.;

5. other auxiliary agent comprises pigment, filler, hydrolysis stabilizer etc.;

6. through pigment is directly mixed with polyalcohol, can obtain versicolor polyurethane open architecture hand cart tyre.
9. according to claim 1, described exempt to inflate do not blow out the polyurethane hand cart tyre by the production of performed polymer, build and three processes of post curing:

Performed polymer synthesizes production stage:

1. polyester polyols dehydration of alcohols (carrying out in the still) in dehydration

After polyester diol or polyether Glycols heat fused; In the corrosion-resistant steel of being with stirring or enamel still, dewater; Dehydration temperaturre is controlled at 100～140 ℃ (100～110 ℃ of polyethers); (0.67kPa) dehydration 30～60min makes its moisture massfraction＜0.05% (can observe cases of dehydration from visor) under the overbottom pressure; For pot liquid is fully outgased, start-stop mixing device intermittently, take out a period of time vacuum after, can stop the retort heating, make material temperature drop to 70～80 ℃;

2. performed polymer synthesizes (in agitated reactor, carrying out)

Product properties depends on used raw MAT'L and proportioning and processing technology; According to selecting suitable raw MAT'L in performance requriements such as temperature, stressing conditions and contact medium and service life etc., according to hardness require selected appropriate proportioning and technological condition (like mixing temperature, cast and demould time and conditions of vulcanization etc.) more earlier; For guaranteeing the performed polymer quality, polyester dehydration and performed polymer are synthetic preferably not to carry out in same still, and the performed polymer synthetic reaction is carried out under the drying nitrogen protection; For preventing that reaction is violent, temperature rise is too fast, must have cooling mechanism; Charging sequence is for adding isocyanates earlier, after add low molecular weight polyols; As react violent, and the low molecular weight polyols graded adds, and makes course of reaction steady, and temperature of reaction is easy to control, and synthetic performed polymer middle reaches divorce cyanate ester monomer content is lower, and structure is more regular; Temperature remains on 80 ± 5 ℃, reaction 1～2h post analysis NCO content; Isocyano-content is between 3.5-6.5% in the control performed polymer;

3. the performed polymer degassing

Can in the A of performed polymer synthesis reaction vessel or cating machine batch can (depositing the material pot of base polyurethane prepolymer for use as), carry out deaeration 30～60min under 85 ± 5 ℃ and overbottom pressure 0.67kPa;

Build step:

In casting system B batch can (deposit crosslinking agent etc. material pot), add crosslinking agent, chain extender and other auxiliary agent; Start the heating system of each component; Make A, B material all reach requirement temperature and each self-loopa, the A material can carry out vacuum degasification earlier as needing, and reaching does not have bubble in the performed polymer; Through regulating the rotating speed and the discharge capacity of measuring pump, make A, B material meet the requirements of mixture ratio by the prescription requirement; Start the cast button, then A, B material make it to mix through high-revolving mixing in the hybrid chamber of pouring head, when the mixture of discharging does not contain bubble in transparent hose, can in mould, not pour into a mould; When cast stopped, A, B stoste promptly transferred recurrent state separately automatically to, got back to separately in the batch can;

At first build Internal and external cycle and support system when building, build the tyre surface system again;

Slaking and post-processing:

The moulding slaking

In mould, should carry out maturation process before the demoulding of open architecture hand cart tyre; Curing temperature can be chosen under the prerequisite that its chemical constitution do not destroy higher as far as possible; To accelerate the chain extension-crosslinking reaction, shorten demould time, improve mould and capacity utilization rate; Often with 100～120 ℃, 12～24h is advisable.