CN201636266U

CN201636266U - Ribbed V-belt

Info

Publication number: CN201636266U
Application number: CN2010201605742U
Authority: CN
Inventors: 石水祥; 腾伟洁
Original assignee: ZHEJIANG SANLUX RUBBER CO Ltd
Current assignee: Sanlux Co., Ltd.
Priority date: 2010-04-15
Filing date: 2010-04-15
Publication date: 2010-11-17
Anticipated expiration: 2020-04-15

Abstract

The utility model relates to a ribbed V-belt, which comprises a back rubber layer, a buffer rubber layer under the back rubber layer and a ribbed rubber layer. At least one tough rubber layer is further arranged between the buffer rubber layer and the ribbed rubber layer. Compared with the prior art, the tough rubber layer disposed in the ribbed V-belt can effectively protect ropes, prevent a belt pulley form puncturing the bottom rubber layer during work so as to damage rope structures. The trough rubber layer as a rubber body can be more compactly adhered through buffer rubber than adhesion of ordinary cords or fabric structures, realizes integration of the belt, reduces inner stress, and is helpful for stretching and running of the belt. Super thin thickness and ultra large transverse rigid force of the tough rubber layer more enhance transverse rigidity of the belt without affecting flexibility of the belt, the tough rubber layer along with the bottom rubber layer mixed with nylon short fibers can effectively avoid problems that pulley systems are not in the same vertical face, or pulleys are pressed to slant and the like, while the ribbed V-belt still can work for more than 1000 kilometers.

Description

Poly Vbelt

Technical field

The utility model relates to poly Vbelt, relates in particular to the poly Vbelt that comprises tough and tensile glue-line.

Background technique

It is big that rubber multiwedge band has transmission power, long service life, and therefore the transmission efficiency advantages of higher is widely used in the cooling fan of motor car engine, water pump, the transmission of power of compressor etc.

Domestic automobile generally adopts neoprene (CR) rubber to make poly Vbelt, and its working life is shorter, and non-refractory.Along with improving constantly vehicle dynamic quality and environmental requirement in recent years, along with the structure of engine design is more and more compacter, a poly Vbelt drives all auxiliaries, as motor, water pump, power-assisted steering, fan, air condition compressor etc., the load that belt body bears is increasing, temperature in the engine compartment significantly improves, and premature ageing, be full of cracks often appear in neoprene, and Bei Fang low temperature has also limited the application of neoprene poly Vbelt in addition.And ethylene propylene diene rubber (being called for short EPDM) becomes the first-selection that alternative neoprene becomes the automobile multi-wedge belt material of main part because of having excellent high temperature performance.

But the EPDM poly Vbelt is made complicated, compactness and the many wheel transmission of numerous domestic manufacturer in order to cooperate motor, blindly the back fabric is simply removed to strengthen the belt body flexibility, and a large amount of attenuate belt bodies is to reduce noise, cause belt body lateral stiffness disappearance, wear resistance descends greatly, thus the EPDM poly Vbelt have in vain EPDM's " great reputation " and to lack the external EPDM poly Vbelt life-span long, significant advantage such as weatherability is good.Can't form competition with external product.

Summary of the invention

Technical problem to be solved in the utility model is: the intensity that how to improve poly Vbelt.

For addressing the above problem, the utility model provides a kind of poly Vbelt, comprises cushion gum layer and wedge glue-line under gum layer, the gum layer, also is provided with the tough and tensile glue-line of one deck at least between described cushion gum layer and the wedge glue-line.

This tough and tensile glue-line is the rubber that is filled with aramid fibre, preferably fills out the ethylene propylene diene rubber that mistake has aramid fibre.

Alternatively, the thickness of described tough and tensile glue-line is less than 0.2 millimeter.

Preferably, the thickness of described tough and tensile glue-line is more than or equal to 0.08 millimeter, and smaller or equal to 0.12 millimeter.

Alternatively, described wedge glue-line is the ethylene propylene diene rubber that has added polyester staple fiber or nylon short fibre or aramid fiber short fibre.

Compared with prior art, also be provided with the tough and tensile glue-line of one deck at least between poly Vbelt cushion gum layer that the utility model is asked for protection and the wedge glue-line, protected belt body from three aspects at least, improved the intensity of poly Vbelt:

One, effectively protect cotton rope, avoided belt wheel to pierce through primer layer at work, thus the failure line rope structure;

Two, itself is as colloid, and by the buffering adhesive bonding, tightr than general cord, woven fabric structure bonding makes belt body integrated, reduces internal stress, helps belt body and unfolds and turn round;

Three, its ultra-thin thickness and laterally firm greatly power, do not influencing under the pliable and tough situation of belt body, bigger reinforcement the lateral stiffness of belt body, with mixing the primer layer that nylon short fibre is arranged, prevent that effectively train is not at same vertical surface, or pinch roller inclination etc. is unexpected when taking place, more than the poly Vbelt endure 1000Km.

Description of drawings

Fig. 1 is the cross-sectional schematic of poly Vbelt among embodiment of the utility model.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.

As shown in Figure 1, poly Vbelt 100 has sandwich structure.This sandwich structure is followed successively by gum layer 101, cushion gum layer 102 and wedge glue-line 103.Wherein, be provided with the tough and tensile glue-line 104 of one deck between cushion gum layer 102 and the wedge glue-line 103.

Tough and tensile glue-line 104 is one decks less than 0.2 millimeter the rubber that is filled with aramid fibre, preferably fills out the ethylene propylene diene rubber that mistake has aramid fibre.In a preferred embodiment, the thickness of tough and tensile glue-line 104 is between 0.08 millimeter to 0.12 millimeter.Gum and strip body structure can increase the pliability of belt body greatly, the noise when having reduced the belt body running, and this is in the industry to the common recognition of no top gum structure.But belt body is too soft and thin, also can cause poly Vbelt 100 on-stream insufficient strength, the aggravation of cotton rope slippage or the like situation.Occur for fear of such situation, the inventor has increased tough and tensile glue-line 104 as supporting between cushion gum layer 102 and wedge glue-line 103, be used for addressing the above problem.But the aramid fibre in the tough and tensile glue-line 104 costs an arm and a leg, if tough and tensile glue-line 104 is blocked up, then product price is too high.Therefore, the thickness of tough and tensile glue-line 104 is arranged between 0.08 millimeter to 0.12 millimeter, both can have improved the intensity of poly Vbelt 100, can reduce manufacture cost again.

Tough and tensile glue-line 104 uses tri-roll press machine, makes its thickness requirement reach 0.1 ± 0.02mm, and keeps slice not have broken hole and surface smoothing continuously, and viscosity is good.

The mechanical property testing result and the reference value of above-mentioned poly Vbelt 100 are as shown in table 1:

The mechanical property testing result and the reference value of table 1 poly Vbelt 100.

Above-mentioned poly Vbelt 100 in high low-temperature test, flawless after placing 70 hours under 121 ℃ of temperature, flawless after placing 70 hours under-40 ℃ of temperature reaches the high temperature performance designing requirement fully.

Above-mentioned poly Vbelt 100 experience 150 hours in fatigue life test is intact.

Though the utility model with preferred embodiment openly as above; but it is not to be used for limiting claim; any those skilled in the art are not in breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection domain of the present utility model should be as the criterion with the scope that the utility model claim is defined.

Claims

1. a poly Vbelt comprises cushion gum layer and wedge glue-line under gum layer, the gum layer, it is characterized in that: also be provided with tough and tensile glue-line between described cushion gum layer and the wedge glue-line.

2. poly Vbelt as claimed in claim 1 is characterized in that: the thickness of described tough and tensile glue-line is less than 0.2 millimeter.

3. poly Vbelt as claimed in claim 2 is characterized in that: the thickness of described tough and tensile glue-line is more than or equal to 0.08 millimeter and smaller or equal to 0.12 millimeter.