CN205346011U - High abrasion aramid fiber core conveyer belt that shocks resistance - Google Patents
High abrasion aramid fiber core conveyer belt that shocks resistance Download PDFInfo
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- CN205346011U CN205346011U CN201521079901.0U CN201521079901U CN205346011U CN 205346011 U CN205346011 U CN 205346011U CN 201521079901 U CN201521079901 U CN 201521079901U CN 205346011 U CN205346011 U CN 205346011U
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Abstract
The utility model relates to a conveyer belt relates to a high abrasion aramid fiber core conveyer belt that shocks resistance. It comprises aramid fiber canvas casing ply, the anti -tear buffer layer that shocks resistance, last cover rubber layer, lower cover rubber layer and limit glue film, and the upside of aramid fiber canvas casing ply is provided with 1~the 3 layer of anti -tear buffer layer that shocks resistance, and the downside of aramid fiber canvas casing ply is provided with the 1 layer of anti -tear buffer layer that shocks resistance, aramid fiber canvas casing ply and shock resistance between the anti -tear buffer layer, between the adjacent anti -tear of the shocking resistance buffer layer, anti -tear buffer layer and to form a conveyer belt through bonding glue film bonding processing between cover rubber layer and the limit glue film from top to bottom whole. The utility model discloses a high abrasion aramid fiber core conveyer belt that shocks resistance's area body compliance is suitable, the shock resistance reinforcing. The anti -tear buffer layer that shocks resistance is increased, the different applied environment shock resistance requirements of strikeing can be satisfied.
Description
Technical field
This utility model relates to a kind of conveyer belt, is specifically related to a kind of high abrasion shock resistance aramid fiber core conveyer belt, particularly a kind of using straight through the straight latitude aramid fiber canvas high abrasion shock resistance aramid fiber core conveyer belt as tensile layer.
Background technology
Conveyer conveying is most economical a kind of mode of movement, therefore achieves in all trades and professions and is widely applied.The basic demand of conveyer auxiliary conveyor system is to use efficient, easy to maintenance, safe and reliable, energy-conserving and environment-protective.Owing to applied environment is different, the belt carcass material of conveyer belt is different with the performance requirement of rubber cover.Traditional conveyer belt framework material is for EP, EE canvas by the line of force with nylon 6, nylon66 fiber for the NN nylon canvas layering conveyer belt being subject to the line of force with polyester, accounts for total consumption more than 50%, and heavy adhesive tape is mainly based on steel cord conveyor belt.Hard, the transportation range length and have the changeable transportation environments such as turning climbing for some large conveying quantities, HI high impact, conveying material, the adhesive tape of two kinds of types all also exists serious deficiency.Adhesive tape belt body is light, shock resistance good in layering, but life-time service is easily layered, and creep elongation is big, and poor dimensional stability is affected by the strength of materials, and band is too thick more than 2000N/mm core body by force to be caused groove forming character poor and cannot use, and service life is short.Steel wire rope rubber band strength is big, good stability, but the band body weight of steel cord conveyor belt, energy expenditure is big, the yielding braking effect intensity of steel wire rope, the exoskeletal tear strips of broadwise, life-time service steel wire rope easy-to-rust broken belt is impacted for a long time by material, the joint time is long, requires bigger to drive roller diameter.
Aramid fiber has best combination property, and the most prominent feature is that high intensity, high-modulus, density are little；Its surface strength, up to more than 20.0CN/dtex, is 5～7 times of steel, more than 2 times of general organic chemical fibres；Density spends fine and it makes no odds with common, and monolayer aramid fiber is that frame strength can reach 4000N/mm, it is possible to meet high, medium and low varying strength requirement.Heat resistance is good, and under the environmental condition of 130 DEG C, the loss rate of intensity is negligible, and can normally use when 250 DEG C, and more than 500 DEG C just start to decompose.The chemicals such as toughness is 3 times of reinforcing glass fiber, ingrain fireproofing, water-fast and soda acid corrosion.Little with aramid fiber for the aramid fiber core conveyer belt elongation that skeleton is compacted, good stability of the dimension, core thickness are thin, it is possible to be applied to the transport place that large conveying quantity, distance, high inclination-angle and curving movement etc. are complicated.Aramid fiber skeleton is high with the bonding force of rubber, fatigue resistance is good, run kinetic energy consumption less, simple in construction, joint are easy, and long service life, is manufacture the desirable framework material of high-performance conveyer belt.Aramid cord is applied widely in industries such as transmission band, high-performance tire, high-pressure rubber pipes.Tape transport inventory is big, it is desirable to the intensity of framework material is high.Compression and fatigue resisting poor-performing due to aramid fiber, it is impossible to adopt multiple-layer stacked to improve intensity.Conveying circuit is longer, has certain adjustment surplus but requires good stability of the dimension.It is skeleton hence with expensive aramid fiber, it is crucial that by structural design, formula design, Design Processing, improve the every physical and mechanical properties of adhesive tape and whole matching, make full use of the premium properties of aramid fiber material, overcome unfavorable factor, improve the service life of aramid fiber conveying belt to greatest extent.
Utility model content
For the technical problem existed in prior art, the purpose of this utility model is in that to provide a kind of high abrasion shock resistance aramid fiber core conveyer belt, by rationally selecting framework material, design optimization core, meet the HI high impact strong wear-resisting conveying environment performance requirement to aramid fiber conveying belt.
To achieve these goals, the technical scheme that this utility model adopts is: a kind of high abrasion shock resistance aramid fiber core conveyer belt, it is made up of aramid fiber canvas casing play, shock resistance anti-tearing cushion, upper covering glue layer, lower covering glue layer and limit glue-line, the upside of aramid fiber canvas casing play is provided with 1～3 layer of shock resistance anti-tearing cushion, and the downside of aramid fiber canvas casing play is provided with 1 layer of shock resistance anti-tearing cushion；Between aramid fiber canvas casing play and shock resistance anti-tearing cushion, between adjacent shock resistance anti-tearing cushion, anti-tear cushion and up and down between covering glue layer and limit glue-line, to be processed to form a conveyer belt overall by bonding glue-line bonding.
Impregnation slurry is had the good compatibility, compound cotton rope to be more conducive to dipping solution to the dipping within aramid filament, infiltration by nylon66 fiber strand and aramid fiber strand.Nylon66 fiber strand does not undertake conveyance tension, and Main Function is to reduce compression mutually, abrasion between aramid cord strand, overcomes the defect of the incompressible fatigability difference of aramid fiber.The elastic performance of compound cotton rope is better, it is possible to improve anti-material impact performance.Owing to aramid fiber compound cotton rope is in straightened condition, the intensity of aramid fiber is fully used.Compound cotton rope is compared with pure aramid cord has better fatigue resistance, suitable percentage elongation, controlled percent thermal shrinkage and dimensional stability, higher cost performance.The broadwise line of the straight latitude Composite aramid fiber canvas of diameter uses nylon66 fiber strand, at two of warp-wise cotton rope, is shuttled back and forth up and down by thin nylon66 fiber warp-wise connecting line and footpath, parallel are connected into an entirety.Broadwise line protects warp-wise aramid fiber compound cotton rope at two.Owing to the skeleton of stress only has one layer, core body is very light and pliability is good especially, and flexible folding, fatigue resistance runs through the whole life cycle of conveyer belt.Belt body can resist the impact of various chemical reaction well, will not be corroded by water etc. or rot, can improve the service life of conveyer belt to greatest extent.
Shock resistance anti-tearing cushion is straight burr or the twill nylon66 fiber cord fabric of horizontally set, it is therefore an objective in order to improve the shock resistance of adhesive tape further, can play anti-tear effect simultaneously.Upper covering glue layer is work surface, directly contacts with material, the size according to impulsive force, can arrange 1～3 layer of shock resistance anti-tearing cushion, and lower covering glue layer is then set to 1 layer.
Adhesive rubber ensures that aramid fiber skeleton and shock resistance anti-tearing cushion, shock resistance anti-tearing cushion are with having enough bonding forces between rubber cover, it is ensured that not delamination in the whole life cycle of products application.Require to subdue internal stress repeated bending fatigue low, resistance to simultaneously.Count by weight, be made up of following raw material: 30～50 parts of natural two-stage nitration rubber, 70～50 parts of butylbenzene 1500,1～2 part of antioxidant 4010 Na, 1～2 part of anti-aging agent RD, 3～8 parts of zinc oxide, 1～3 part of stearic acid, 25～35 parts of N330 white carbon blacks, 10～15 parts of white carbons, 5～10 parts of terpene resins, 5～15 parts of environment-friendly type aromatic naphtha, 2～5 parts of binding agent PM-18,0.5～1.2 part of accelerant NOBS, 1.5～2.5 parts of sulfurs.
Rubber cover requires wear-resisting, shock resistance, cut resistant, it is possible to protect the aramid fiber canvas casing play of costliness well.Upper rubber cover, lower rubber cover, limit glue adopt formula of the same race, count by weight, it is made up of following raw material: 50～65 natural one section of rubber, 50～35 parts of butadiene rubbers, 3～5 parts of fine pre-dispersed material of aramid fiber chopped, 1～2 part of antioxidant 4010 Na, 1～2 part of anti-aging agent RD, 0.5～2 part of microcrystalline wax, 3～7 parts of zinc oxide, 1～3 part of stearic acid, 40～70 parts of N234 white carbon blacks, 0.5～2 part of dispersant, 5～10 parts of paraffin oil, 0.5～1.5 part of accelerant CZ, 0.2～0.8 part of altax, 1.2～2 parts of sulfur.
The production technology of high abrasion shock resistance aramid fiber core conveyer belt, step is as follows:
One, refining glue
(1), adhesive glue is mixing: adds flexibility of plasticating by weight and reaches natural rubber and the butadiene-styrene rubber of 0.6～0.8, mixing 60 seconds, add zinc oxide, stearic acid, antioxidant 4010 Na, anti-aging agent RD, terpene resin, mixing 30 seconds of binding agent PM-18, add white carbon black, white carbon, environment-friendly aromatic oil, mixing to 135 DEG C of binder removals；Banbury is again put into after parking 8 hours, mixing to 60 DEG C, add accelerant NOBS, sulfur, low speed is mixing to 95 DEG C of binder removals, and tabletting is received after parking 24 hours；
(2), rubber cover mixing: natural, the pre-dispersed material of the short fibre of butadiene rubber, aramid fiber, mixing 60 seconds, add zinc oxide, N234 white carbon black, mixing to 160 DEG C of binder removals；Put into mixer mixing 75 seconds after parking 8 hours, add stearic acid, antioxidant 4010 Na, anti-aging agent RD, dispersant, microcrystalline wax, paraffin oil, mixing to 140 DEG C of binder removals；Again putting into mixer mixing after parking 8 hours to 60 DEG C, add accelerant CZ, altax, sulfur, low speed is mixing to 95 DEG C of binder removal tablettings, receives after parking 24 hours；
Two, calendering formation
(1), after adhesive rubber parks 24 hours, through cold-feed extrusion machine filter glue, heat refining, at four rod calenders straight for diameter latitude Composite aramid fiber canvas, shock resistance anti-tearing cushion two surface pressure rubberizing；Rubberizing pressure suitably strengthens, and improves the sizing material penetration degree to skeleton；
(2), the straight latitude Composite aramid fiber canvas of diameter after rubberizing, shock resistance anti-tearing cushion compound；Use and cover sizing material extrusion limit glue, two welt glue of belt carcass that compound is good, park 4～8 hours and fit over glue；
(3), rubber cover through cold-feed extrusion machine filter glue with fully after heat refining, calender adjusts to the rubber cover thickness needed, the belt carcass of forming directly against closing upper and lower covering rubber, parks after cure in 8 hours on calender；
Three, sulfuration
Band embryo does not need to stretch pot sulfuration, and conditions of vulcanization is: curing temperature 142～145 DEG C, sulfide stress 3.0～3.5MPa；After band embryo dress pot, first making high pressure and preheat 2～3 minutes, fall a pot aerofluxus, then make high pressure and normally vulcanize, cure time (min)=20+1.1 × tape thickness (mm).
High abrasion shock resistance aramid fiber core conveyer belt of the present utility model, its beneficial effect shows:
(1), to use aramid fiber, nylon66 fiber compound cotton rope be warp-wise by the straight latitude aramid fiber canvas of diameter of the line of force is skeleton, casing play straight burr setting up and down or twill nylon66 fiber cord fabric shock resistance anti-tearing cushion, additional high abrasion shock resistance rubber cover, casing play cushions interlayer together, cushion is pasted by adhesive rubber with between rubber cover, it is bonded into an entirety after sulfuration, is suitable for the application demand of high abrasion, shock resistance requirement.The elastic performance of compound cotton rope is better, it is possible to improve anti-material impact performance.Shock resistance anti-tearing cushion can improve the shock resistance of adhesive tape further, can play anti-tear effect simultaneously.Covering glue layer wear resistant and impact resistant, increases the belt cutting-resisting property of rubber cover by adding aramid short fiber.Overall wear resistant and impact resistant performance is strengthened, and has better fatigue resistance, suitable percentage elongation, controlled percent thermal shrinkage and dimensional stability, good troughability simultaneously.
(2), owing to having selected specific framework material, belt body pliability is suitable, and impact resistance strengthens.Increase shock resistance anti-tearing cushion, the applied environment shock resistance requirement of different impact can be met.The bonding force of adhesive rubber is big, and the penetrating power of framework material is strong, and dynamic property is good, it is ensured that the globality of the whole life cycle of adhesive tape.
(3), cover sizing material wear resistant and impact resistant performance good, by add the aramid fiber pre-dispersed material of short fibre, through rolling orientation, the belt cutting-resisting property of rubber cover improves, three-stage mixing compounding ingredient dispersing uniformity is good, and rubber strength strengthens, and anti-wear performance and flexible resistance improve.
Accompanying drawing explanation
Fig. 1 is the structural representation of high abrasion shock resistance aramid fiber core conveyer belt of the present utility model.
In Fig. 1,1, limit glue-line, 3, upper covering glue layer, 4, lower covering glue layer, 5, aramid fiber canvas casing play, 6, shock resistance anti-tearing cushion, 7, bonding glue-line.
Detailed description of the invention
For further describing high abrasion shock resistance aramid fiber core conveyer belt of the present utility model, below in conjunction with accompanying drawing, it is described further.
Embodiment 1
A kind of high abrasion shock resistance aramid fiber core conveyer belt shown in Fig. 1, it is made up of aramid fiber canvas casing play 5, shock resistance anti-tearing cushion 6, upper covering glue layer 3, lower covering glue layer 4 and limit glue-line 1, the upside of aramid fiber canvas casing play 5 is provided with two-layer shock resistance anti-tearing cushion 6, and the downside of aramid fiber canvas casing play 5 is provided with one layer of shock resistance anti-tearing cushion 6；Between aramid fiber canvas casing play 5 and shock resistance anti-tearing cushion 6, between adjacent shock resistance anti-tearing cushion 6, anti-tear cushion 6 and up and down between covering glue layer and limit glue-line by adhesive glue (being bonding glue-line 7 in the conveyer belt structure after molding) bonding and after over cure shape integral.
Embodiment 2
High abrasion shock resistance aramid fiber conveying belt specification 1250N/mm-1000mm (6+3), includes the straight latitude aramid fiber canvas of diameter, shock resistance anti-tearing cushion, adhesive rubber glue-line, high abrasion shock resistance covering glue layer.Wherein: described diameter straight latitude aramid fiber warp yarn aramid fiber 3360dtex × 2Z90 × 4S70+1880dtex nylon66 fiber × 2Z60 × 1S70, i.e. Grain lines aramid fiber just twisted filament 3360dtex × 2, the twist (Z) 90, nylon66 fiber is twisted filament 1880dtex × 2 just, the twist (Z) 60, retwist is that 4 strands of aramid fiber first twist strands add 1 strand of nylon66 fiber strand, the retwist twist (S) 70,44/dm of density.Nylon66 fiber broadwise line 1880dtex × 6Z60,32/dm of density.Nylon66 fiber connecting line 2200dtex × 1Z100,88/dm of density.Aramid fiber canvas thickness 2.8mm, weight per unit area 1.9kg/m2。
All use monolayer shock resistance anti-tearing cushion up and down.
Adhesive glue formula, by weight: natural rubber 60 parts, 40 parts of butadiene-styrene rubber, antioxidant 4010 Na1.5 part, anti-aging agent RD 1.5 parts, zinc oxide 6 parts, stearic acid 2 parts, N330 white carbon black 32 parts, white carbon 12 parts, terpene resin 7 parts, environment-friendly type aromatic naphtha 10 parts, PM-18 binding agent 3.5 parts, accelerant NOBS 1 part, sulfur 1.8 parts.
Rubber cover and limit glue formula, by weight: natural one section of rubber 52 parts, butadiene rubber 48 parts, 4 parts of the pre-dispersed material of the short fibre of aramid fiber, antioxidant 4010 Na2 part, anti-aging agent RD 1 part, microcrystalline wax 1 part, zinc oxide 4 parts, stearic acid 2.5 parts, N234 white carbon black 65 parts, dispersant 0.6 part, paraffin oil 8 parts, accelerant CZ 0.7 part, altax 0.5 part, 1.6 parts of sulfur.
According to following explained hereafter:
One, refining glue
(1), adhesive glue is mixing: adds flexibility of plasticating by weight and reaches natural rubber and the butadiene-styrene rubber of 0.6～0.8, mixing 60 seconds, add zinc oxide, stearic acid, antioxidant 4010 Na, anti-aging agent RD, terpene resin, mixing 30 seconds of binding agent PM-18, add white carbon black, white carbon, environment-friendly aromatic oil, mixing to 135 DEG C of binder removals；Banbury is again put into after parking 8 hours, mixing to 60 DEG C, add accelerant NOBS, sulfur, low speed is mixing to 95 DEG C of binder removals, and tabletting is received after parking 24 hours；
(2), rubber cover mixing: natural, the pre-dispersed material of the short fibre of butadiene rubber, aramid fiber, mixing 60 seconds, add zinc oxide, N234 white carbon black, mixing to 160 DEG C of binder removals；Put into mixer mixing 75 seconds after parking 8 hours, add stearic acid, antioxidant 4010 Na, anti-aging agent RD, dispersant, microcrystalline wax, paraffin oil, mixing to 140 DEG C of binder removals；Again putting into mixer mixing after parking 8 hours to 60 DEG C, add accelerant CZ, altax, sulfur, low speed is mixing to 95 DEG C of binder removal tablettings, receives after parking 24 hours；
Two, calendering formation
(1), after adhesive rubber parks 24 hours, through cold-feed extrusion machine filter glue, heat refining, at four rod calenders straight for diameter latitude Composite aramid fiber canvas, shock resistance anti-tearing cushion two surface pressure rubberizing；Rubberizing pressure suitably strengthens, and improves the sizing material penetration degree to skeleton；
(2), the straight latitude Composite aramid fiber canvas of diameter after rubberizing, shock resistance anti-tearing cushion compound；Use and cover sizing material extrusion limit glue, two welt glue of belt carcass that compound is good, park 4～8 hours and fit over glue；
(3), rubber cover through cold-feed extrusion machine filter glue with fully after heat refining, calender adjusts to the rubber cover thickness needed, the belt carcass of forming directly against closing upper and lower covering rubber, parks after cure in 8 hours on calender；
Three, sulfuration
Band embryo does not need to stretch pot sulfuration, and conditions of vulcanization is: curing temperature 142～145 DEG C, sulfide stress 3.0～3.5MPa；After band embryo dress pot, first making high pressure and preheat 2～3 minutes, fall a pot aerofluxus, then make high pressure and normally vulcanize, cure time (min)=20+1.1 × tape thickness (mm).
The performance test results of products obtained therefrom is in Table 1:
Table 11250N/mm-1000mm (6+3) high abrasion shock resistance aramid fiber conveying belt performance
Table 1 data illustrate: the through thickness longitudinal direction elongation rate of tensile failure of 1250N/mm band only has 3.8%, illustrate to use percentage elongation little at full capacity, it is possible to meet long-distance transportation demand；Bonding strength is high, it is ensured that the globality in the whole life cycle of conveyer belt；60 ° of carrying roller grooved angle, side grooving degree is high, it is possible to meet the special transport place demands such as high inclination-angle；The intensity of rubber cover and anti-wear performance are good, it is possible to avoid the abrasion of adhesive tape rubber cover to cause adhesive tape to damage premature failure, improve the service life of high abrasion shock resistance aramid fiber conveying belt to greatest extent.
Embodiment 3
High abrasion shock resistance aramid fiber conveying belt specification 2500N/mm-1400mm (9+4), diameter straight latitude aramid fiber warp yarn aramid fiber 3360dtex × 9Z40 × 3S40+1880dtex nylon66 fiber × 5Z60 × 1S40, i.e. Grain lines aramid fiber just twisted filament 3360dtex × 9, the twist (Z) 40, nylon66 fiber is twisted filament 1880dtex × 5 just, the twist (Z) 60, and retwist is that 3 strands of aramid fiber first twist strands add 1 strand of nylon66 fiber strand, the retwist twist (S) 40,22/dm of density.Broadwise line 1880dtex nylon66 fiber × 9Z60,32/dm of density.Connecting line 3300dtex nylon66 fiber × 1Z100,44/dm of density.Aramid fiber canvas thickness 3.2mm, weight per unit area 1.94.6kg/m2, upper rubber cover side uses two layers of shock resistance cushion, is staggeredly placed with the centerline dip 45 degree of band.Lower rubber cover side uses monolayer shock resistance cushion, laterally vertically places with casing play.Rubber cover and adhesive glue formula are with embodiment 2, and the performance of conveyer belt detects in Table 2:
Table 22500N/mm-1400mm (9+4) high abrasion shock resistance aramid fiber conveying belt performance
Table 2 data illustrate: 2500N/mm band is by force that middle high intensity band is strong, and through thickness longitudinal direction elongation rate of tensile failure is 4.2%, and more full aramid fiber skeleton rigidity suitably reduces, and pliability increases, and the fatigue performance of band strengthens.The 60 ° of grooving degree in carrying roller grooved angle, side are high, it is to avoid the defect of multiple layers of high strength adhesive tape groove forming character difference；Bonding strength height, the intensity of rubber cover and the anti-wear performance be with are good, and the overall performance of adhesive tape is good.
Above content is only to design example of the present utility model and explanation; described specific embodiment is made various amendment or supplements or adopt similar mode to substitute by affiliated those skilled in the art; conceiving or surmounting the scope that present claims book is defined without departing from utility model, all should belong to protection domain of the present utility model.
Claims (1)
1. a high abrasion shock resistance aramid fiber core conveyer belt, it is characterized in that, it is made up of aramid fiber canvas casing play (5), shock resistance anti-tearing cushion (6), upper covering glue layer (3), lower covering glue layer (4) and limit glue-line (1), the upside of aramid fiber canvas casing play (5) is provided with 1～3 layer of shock resistance anti-tearing cushion (6), and the downside of aramid fiber canvas casing play (5) is provided with 1 layer of shock resistance anti-tearing cushion (6)；Between aramid fiber canvas casing play (5) with shock resistance anti-tearing cushion (6), between adjacent shock resistance anti-tearing cushion (6), anti-tear cushion (6) and up and down between covering glue layer and limit glue-line, to be processed to form a conveyer belt overall by bonding glue-line (7) bonding.
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| CN201521079901.0U CN205346011U (en) | 2015-12-22 | 2015-12-22 | High abrasion aramid fiber core conveyer belt that shocks resistance |
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| CN201521079901.0U CN205346011U (en) | 2015-12-22 | 2015-12-22 | High abrasion aramid fiber core conveyer belt that shocks resistance |
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