CN102132067A - V-belt for transmitting high load - Google Patents
V-belt for transmitting high load Download PDFInfo
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- CN102132067A CN102132067A CN2009801328913A CN200980132891A CN102132067A CN 102132067 A CN102132067 A CN 102132067A CN 2009801328913 A CN2009801328913 A CN 2009801328913A CN 200980132891 A CN200980132891 A CN 200980132891A CN 102132067 A CN102132067 A CN 102132067A
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- band
- contacting part
- piece
- high load
- stiffening element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
- F16G5/166—V-belts, i.e. belts of tapered cross-section consisting of several parts with non-metallic rings
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Abstract
A V-belt for transmitting a high load is provided with a tension belt formed in an annular shape so as to extend in the longitudinal direction of the belt, and also with blocks mounted to the tension belt so as to be arranged side by side in the longitudinal direction of the belt. Each block has a reinforcing member for reinforcing a block body, and also has a resin-made contact section provided so as to cover at least a part of the reinforcing member and making contact with a groove surface of a V-pulley. The contact section is formed such that the thickness thereof covering the reinforcing member is increased toward the inner side of the belt.
Description
Technical field
The present invention relates to a kind of high load transmission V-type band.
Background technique
Up to now, the high load transmission is wrapped on a plurality of V belt wheels of the variable pulley that comprises that pitch of grooves for example is variable with the V-type band, is used in the Belt-type Adjustable-speed device of automobile etc.This high load transmission constitutes with the V-type band: sustain side pressure from each belt wheel groove face by each piece, carry out the power handing-over between described each belt wheel and each piece, and carry out transmission of power (reference example such as patent documentation 1) by each bar tension band.
Figure 11 schematically illustrates the transverse sectional view of existing high load transmission with V-type band 100.
As shown in figure 11, the high load transmission comprises with V-type band 100: extend parallel to each other along the belt length direction and form a pair of tension band 101 of ring-type and arranging on the total length that is installed in this a pair of tension band 101 a plurality of 102 with prescribed distance mutually.
Each piece 102 has a pair of groove shape embedding part 103 that opens wide towards the outside of bandwidth direction in both sides, embed tension band 101 respectively in described each embedding part 103.Described each piece 102 constitutes: be embedded with the stiffening element 104 that is made of metal at base section, press so that can bear from the larger side of belt wheel, this stiffening element 104 is covered by resins such as phenols compound resins, and the contacting part 105 that contacts with the belt wheel groove face is formed by the resin of thickness homogeneous.
Patent documentation 1: No. 3044212 communique of Japan Patent
-invent technical problem to be solved-
Figure 12 is schematically illustrated in to have the transverse sectional view of high load transmission with V-type band 100 in the traveling now.
As shown in figure 12, in the traveling process, particularly when having dwindled the pitch of grooves of V belt wheel for speed change, owing to the side pressure from belt wheel 106 is applied on each piece 102, thereby contacting part 105 is easily towards the distortion of band outside curve with V-type band 100 in the high load transmission.At this, the piece 102 the when double dot dash line among Figure 12 is illustrated in contacting part 105 and does not have crooked state.Also have, the distribution situation that the curve 107 expression contacting parts 105 among Figure 12 are subjected to from the side pressure of belt wheel 106, this curve 107 is illustrated in perpendicular to far away more from this groove face on the direction of belt wheel 106 groove faces, and the side pressure of this part is just big more.So, because contacting part 105 is towards the band outside curve, so the contacting part 105 suffered side pressures from belt wheel 106 just increase towards band is inboard, therefore as mentioned above under the situation that contacting part 105 is formed by the resin of thickness homogeneous, the side pressure that contacting part 105 is subjected to is easy in the inboard local increase of band.For this reason, under the effect from the bigger side pressure in the part of belt wheel 106, contacting part 105 can be damaged, and piece 102 is easy to breakage, existing problem that Here it is.
Summary of the invention
The present invention finishes in view of the premises, and its purpose is: suppress the contacting part breakage that contacts with the V belt wheel of each piece.
-in order to the technological scheme of technical solution problem-
To achieve these goals, in the present invention, the resin system contacting part that is set to cover at least a portion of the stiffening element that each piece is strengthened and contacts with the groove face of V belt wheel is formed: the cladding thickness that covers stiffening element increases towards band is inboard.
Specifically, high load transmission involved in the present invention comprises with the V-type band: extend and form the tension band of ring-type and arranging a plurality of that are installed on the described tension band mutually along the belt length direction along the belt length direction, each described has stiffening element that the piece main body is strengthened and the contacting part that is formed from a resin, this contacting part is set to cover at least a portion of this stiffening element, and contacts with the groove face of V belt wheel.It is characterized in that: described contacting part forms the cladding thickness that covers described stiffening element and increases towards band is inboard.
The high load transmission with said structure with the V-type band in, also can be such, that is: be provided with a pair of described tension band that extends parallel to each other, described stiffening element has a pair of beam portion that clips described a pair of tension band and establish and is arranged between the described a pair of tension band post portion that described a pair of beam portion is joined to one another, and the cladding thickness that is arranged on the described contacting part at least one the beam portion in the described a pair of beam portion increases towards band is inboard.
And preferably: the cladding thickness that is arranged on the described contacting part in the described a pair of beam portion all increases towards band is inboard.
Also have, preferably: the side angulation that is provided with described contacting part of surface of contact that the groove face with described V belt wheel of described contacting part contacts and described stiffening element is more than 8 degree and below 20 degree.
-effect-
Below, effect of the present invention is described.
According to high load transmission V-type band involved in the present invention, be set to cover at least a portion of the stiffening element that each piece is strengthened and the resin system contacting part that contacts with the groove face of V belt wheel forms: the cladding thickness that covers stiffening element increases towards band is inboard.Thus, the resiliency for from the side pressure of V belt wheel that contacting part itself is had just improves towards band is inboard, even contacting part is towards the ground distortion of band outside curve in taking away row, what contacting part was subjected to also can be more just be scatter towards band is inboard more significantly from the side pressure of V belt wheel, so can suppress side pressure that contacting part is subjected to inboard local increase of band.Therefore, can suppress the contacting part breakage of each piece.
And then, the dispersion that is subjected to along with contacting part from the side pressure of V belt wheel, the suffered shearing force from the V belt wheel of contacting part is also scatter and can be suppressed it inboard local increase of band, therefore can suppress contacting part and accelerate in the inboard concentrated wear of band, the wear-resistant life-span of contacting part is improved.
For example, be provided with a pair of tension band that extends parallel to each other, stiffening element has a pair of beam portion that clips a pair of tension band and establish and is arranged between a pair of tension band post portion that a pair of beam portion is joined to one another, and the cladding thickness that is arranged on the contacting part at least one the beam portion in a pair of beam portion increases towards band is inboard.In this case, also can realize action effect of the present invention particularly towards the inboard contacting part that increases of band at this cladding thickness.
Particularly, at the cladding thickness that is arranged at the contacting part in a pair of beam portion all towards band under the inboard situation about increasing, because can suppress to be arranged on the contacting part breakage in a pair of beam portion, so with only be arranged on a pair of beam portion in a beam portion on the cladding thickness of contacting part compare towards the inboard situation about increasing of band, can further suppress each piece breakage.
Under the situations of the side angulation that is provided with contacting part less than 8 degree of surface of contact that the groove face with the V belt wheel of contacting part contacts and stiffening element, improve towards the inboard just difficult more resiliency of contacting part that makes well of band more, the side pressure from the V belt wheel that contacting part is subjected to just is difficult to scatter fully.For this reason, the side pressure strength of piece is difficult to fully be improved.On the other hand, under the situations of side angulation greater than 20 degree of the surface of contact of this contacting part and stiffening element, because the mechanical strength of contacting part is lower in the band inboard, so when band under high-load condition during traveling the endurance of piece will produce by a relatively large margin decline, in taking away capable process, particularly when the image-tape traveling begins and band low speed traveling is medium on piece, applied very high loads like that in, contacting part improves in the inboard possibility that produces early fracture of band under the effect from the shearing force of V belt wheel that acts on surface of contact.That is to say that the endurance of band itself might produce decline by a relatively large margin when carrying out traveling under high-load condition.
With respect to this, at the side angulation of the surface of contact of described contacting part and stiffening element at 8 degree under above and 20 the situations below spending, the resiliency of contacting part improves really and well towards the band inboard, the side pressure from the V belt wheel that contacting part is subjected to is scatter fully, therefore can improve the side pressure strength of piece fully, and contacting part also can keep higher mechanical strength in that band is inboard, so the fall of the endurance of piece is less when being with under high-load condition traveling.Thus, can suppress each piece breakage well.
The effect of-invention-
According to the present invention, because the resin system contacting part that is set to cover at least a portion of the stiffening element that each piece is strengthened and contacts with the groove face of V belt wheel forms: the cladding thickness that covers stiffening element increases towards band is inboard, so can suppress the contacting part breakage of each piece.Consequently, can prolong the working life of high load transmission with the V-type band.
Description of drawings
Fig. 1 schematically illustrates to have used the side view of the related high load transmission of first mode of execution with the stepless speed changes devices of V-type band.
Fig. 2 is the transverse sectional view that the part of the V belt wheel that constitutes stepless speed changes devices schematically is shown.
Fig. 3 schematically illustrates the stereogram of the related high load transmission of first mode of execution with the part of V-type band.
Fig. 4 is the figure that the IV-IV line section of Fig. 3 schematically is shown.
Fig. 5 is schematically illustrated in the traveling high load transmission with the transverse sectional view of V-type band.
Fig. 6 be side (bonding plane) angulation of expression surface of contact of contacting part and stiffening element and piece side pressure strength than between the plotted curve of relation.
Fig. 7 is the sectional view that the traveling testing apparatus that is used for the evaluation test of high load endurance schematically is shown.
Fig. 8 be side (bonding plane) angulation of expression surface of contact of contacting part and stiffening element and piece the high load endurance than between the plotted curve of relation.
Fig. 9 be the related contacting part of other mode of execution schematically is shown cladding thickness only in inner beam portion towards the transverse sectional view of the inboard high load transmission that increases of band with the V-type band.
Figure 10 be the related contacting part of other mode of execution schematically is shown cladding thickness only outside beam portion towards the transverse sectional view of the inboard high load transmission that increases of band with the V-type band.
Figure 11 schematically illustrates the transverse sectional view of existing high load transmission with the V-type band.
Figure 12 is schematically illustrated in to have the transverse sectional view of high load transmission with the V-type band in the traveling now.
Description of reference numerals
B-high load transmission V-type band; 3-driving pulley (V belt wheel); 4-driven pulley (V belt wheel); The 10-tension band; The 20-piece; The 25-stiffening element; 25a, 25b-beam reinforcing part (beam portion); 25c-post reinforcing part (post portion); The bonding plane of 25d-stiffening element (being provided with the side of contacting part); The 27-contacting part; The 27a-surface of contact.
Embodiment
Below, with reference to accompanying drawing embodiments of the present invention are described in detail.In addition, the present invention is not limited by following each mode of execution.
(first mode of execution of invention)
Fig. 1 to Fig. 8 illustrates high load transmission involved in the present invention first mode of execution with the V-type band.
Fig. 1 schematically illustrates to have used the side view of high load transmission with the stepless speed changes devices T of V-type band B.Fig. 2 is schematically illustrated in twining the transverse sectional view of high load transmission with the part of the belt wheel 3,4 of formation stepless speed changes devices T under the state of V-type band B.Fig. 3 schematically illustrates the stereogram of the i.e. related high load transmission of first mode of execution of present embodiment with the part of V-type band B.Fig. 4 is that the IV-IV line along Fig. 3 schematically illustrates the transverse sectional view of high load transmission with V-type band B.Fig. 5 is schematically illustrated in to take away in the row high load transmission with the transverse sectional view of V-type band B.As mentioned below, Fig. 6 to Fig. 8 be the expression present embodiment evaluation test in testing apparatus and the figure of test result.
The related high load transmission of present embodiment for example is used among the stepless speed changes devices T with V-type band (below, only be called the V-type band) B.This stepless speed changes devices T is a kind of belt driver.
As shown in Figure 1, stepless speed changes devices T comprises live axle 1 and the driven shaft 2 that be arranged in parallel with this live axle 1, and driving pulley 3 is installed on the described live axle 1, and driven pulley 4 is installed on the described driven shaft 2.As shown in Figure 2, described driving pulley 3 and driven pulley 4 are the variable speed V-belt wheels with fixed wheel 5 and driving wheel 6, this fixed wheel 5 form as one with each axle 1,2 and be fixed on this axially on, this driving wheel 6 is subjected to supporting and can slides on this is axial, forms the trough of belt that the section that V-type band B is come in and gone out is " V " font between driving wheel 6 and fixed wheel 5.Described driving pulley 3 and driven pulley 4 constitute: by allow driving wheel 6 near or can change pitch of grooves away from fixed wheel 5.
This stepless speed changes devices T constitutes: V-type band B is taken turns in the trough of belt between 5,6 and changes this pitch of grooves around each of driving pulley 3 and driven pulley 4, can regulate the roll diameter of the band on each belt wheel 3,4 thus, the rotating force of driving pulley 3 be passed to driven pulley 4 via V-type band B.Stepless speed changes devices T makes the roll diameter of the band on two belt wheels 3,4 change towards opposite directions and realizes speed change, become acceleration mode when making roll diameter on the driving pulley 3 as shown in Figure 1 greater than the roll diameter on the driven pulley 4, become deceleration regime when making roll diameter on the driven pulley 4 on the contrary, omit the diagram of this deceleration regime greater than the roll diameter on the driving pulley 3.Between driving pulley 3 and driven pulley 4, be furnished with the Idle wheel 7 that V-type band B is applied tension force from band outside extruding V-type band B.This Idle wheel 7 is a kind of flat tyre wheels.
As shown in Figure 3, V-type band B comprises: be arranged in bandwidth direction upper edge belt length direction and extend parallel to each other and form a pair of tension band 10 of ring-type and arranging a plurality of 20 that are installed on two tension bands 10 mutually along the belt length direction.
A pair of tension band 10 has: the conformal layer 11 that is formed by vulcanite and be set to spiral helicine heart yearn 12 along the belt length direction in the inside of conformal layer 11 with extending.
Good and the vulcanite that be difficult to produce permanent deformation of the heat resistance that will be for example sneak into short fibre such as aromatic polyamide short fibre, nylon short fibre and obtain in the reinforced hydrogenated nitrile-butadiene rubber (H-NBR) by zinc methacrylate is used for conformal layer 11.When measuring rubber hardness with the JIS-C hardness tester, the rubber hardness that requires this vulcanite is about more than 75 °.For the purpose that improves wearability etc., bonding is provided with canvas 13 respectively on the two sides of this conformal layer 11.Described each canvas 13 is for example made by making the impregnation of nylon system canvas carry out vulcanizing treatment by the reinforced hydrogenated nitrile-butadiene rubber of zinc methacrylate (H-NBR) back to this hydrogenated nitrile-butadiene rubber.
On described each bar tension band 10, with predetermined distance be arranged on the belt length direction and a plurality of inside grooves 14 of extending along bandwidth direction respectively to be formed on band as the inboard portion of being engaged inboard, a plurality of water jackets 15 that extend along bandwidth direction respectively accordingly with each inside groove 14 are formed on the band outside as the outside portion of being engaged on the other hand.
The cross section of each piece 20 forms approximate " worker " font, and piece 20 is by extending and clip a pair of tension band 10 and a pair of beam 20a of portion, the 20b that establish and be arranged between a pair of tension band 10 20c of post portion that the middle body with the bandwidth direction of a pair of beam 20a of portion, 20b is joined to one another and constitute along bandwidth direction respectively.
The outer beam 20b of portion that is arranged on the inboard 20a of inner beam portion of band and is arranged on the band outside that constitutes a pair of beam portion forms: the length on the bandwidth direction shortens towards the band inboard gradually from the band outside, and the groove face angulation of angulation and each belt wheel 3,4 about equally between the both sides of bandwidth direction and surface of contact 27a that each belt wheel 3,4 contacts.Both sides at the bandwidth direction of the 20c of post portion have been separated to form a pair of groove shape embedding part 21.This a pair of embedding part 21 opens wide towards the outside of bandwidth direction respectively, and each bar tension band 10 embeds in the embedding part 21 corresponding with it respectively.
In each embedding part 21 of each piece 20, meshing outstanding interior projecting strip part 22 with the inside groove 14 of tension band 10, to be arranged on band as inner mesh portion inboard, meshing outstanding outer projecting strip part 23 with the water jacket 15 of tension band 10 on the other hand and be arranged on the band outside as outside engaging piece.Because projecting strip part 22 and inside groove 14 engagements in described, described outer projecting strip part 23 and water jacket 15 engagements, thereby each piece 20 blocks respectively along the belt length direction and only be fixed on two tension bands 10, and carry out power with described two tension bands 10 and join.
As shown in Figure 4, described each piece 20 constitutes: be embedded with the metallic stiffening element 25 of reinforced block main body at base section, this stiffening element 25 is covered by resin portion 26.Described each piece 20 has: be set to cover the bi-side of stiffening element 25 on bandwidth direction and the resin system contacting part 27 that contacts with the groove face of each belt wheel 3,4.
Stiffening element 25 is formed by aluminum alloy etc., and forms contour shape and roughly the same approximate " worker " font of piece main body.This stiffening element 25 is that beam reinforcing part 25a, 25b and post portion are that post reinforcing part 25c constitutes by a pair of beam portion of the 20a of each beam portion, the 20b of reinforced block main body respectively and the 20c of post portion.That is to say that the 20a of each beam portion, 20b are made of each beam reinforcing part 25a, 25b and the resin portion 26a, the 26b that cover described each beam reinforcing part 25a, 25b respectively, the 20c of post portion is made of post reinforcing part 25c and the resin portion 26c that covers this post reinforcing part 25c.
In addition, in the present embodiment, stiffening element 25 is covered by resin portion 26, thereby constituted each piece 20, but so long as resin portion 26 is set on stiffening element 25, contacting part 27 and embedding part 21 are made of resin get final product, can be exposed at the surface of piece 20 at other parts stiffening element 25.
Each piece 20 of V-type band B forms in the present embodiment: on a pair of beam 20a of portion, 20b, the cladding thickness that contacting part 27 covers stiffening element 25 increases towards band is inboard.
The surface of contact 27a that contacts at the groove face with each belt wheel 3,4 of contacting part 27 and the side that is provided with this contacting part 27 of stiffening element 25, that is under the situations of bonding plane 25d angulation α less than 8 degree of getting up with contacting part 27 adhesion of stiffening element 25, improve towards the inboard just difficult more resiliency of contacting part 27 that makes well of band more, the side pressure from each belt wheel 3,4 that contacting part 27 is subjected to just is difficult to scatter fully.For this reason, the side pressure strength of piece 20 is difficult to fully be improved.On the other hand, under the situations of the bonding plane 25d angulation α of the surface of contact 27a of this contacting part 27 and stiffening element 25 greater than 20 degree, because the mechanical strength of contacting part 27 is lower in the band inboard, so when band under high-load condition during traveling the endurance of piece 20 will produce by a relatively large margin decline, in taking away capable process, particularly when the image-tape traveling begins and band low speed traveling is medium on V-type band B, applied very high loads like that in, contacting part 27 act on surface of contact 27a from each belt wheel 3, possibility in the band break inside under the effect of 4 shearing force improves.That is to say that the endurance of V-type band B might produce decline by a relatively large margin when carrying out traveling under high-load condition.
Based on this, in each piece 20 of present embodiment, the bonding plane 25d angulation α of the surface of contact 27a of contacting part 27 and stiffening element 25 is more than 8 degree and below 20 degree.
As shown in Figure 3, the Lower Half of the band inboard of each piece 20 forms taper along the longitudinal section of belt length direction, makes that the thickness on the belt length direction reduces gradually towards the band inboard, and is wrapped on each belt wheel 3,4 with the positive curve state.On the other hand, the first half in the band of each piece 20 outside forms taper along the longitudinal section of belt length direction, makes that the thickness on the belt length direction reduces gradually towards the band outside, and constitutes: can become the hogging bending state with band outer side surface contact Idle wheel 7.
As mentioned above, V-type band B constitutes: in stepless speed changes devices T, sustain side pressure by each piece 20, between described each belt wheel 3,4 and each piece 20, carry out the power handing-over, and carry out transmission of power by each bar tension band 10 from each belt wheel 3,4 groove faces.
-evaluation test-
Below, the concrete evaluation test of having implemented is described.The evaluation test of being carried out comprises: to the piece that constitutes the V-type band carry out in order to the side pressure strength evaluation test of estimating side pressure strength with in order to estimate the high load endurance evaluation test of the endurance when being with under high-load condition traveling.
(side pressure strength evaluation test)
In the side pressure strength evaluation test, according to the analysis of having used finite element method, obtained comprise with described first mode of execution have same structure V-type band B piece 20 the piece 20 of interior V-type band involved in the present invention, with the side pressure strength ratio of the piece of V-type band with existing structure.
According to this evaluation test, to embodiment 5, these five pieces 20 that the bonding plane 25d angulation α of the surface of contact 27a of contacting part 27 and stiffening element 25 are respectively 7.5 degree, 8.4 degree, 15.7 degree, 20.0 degree, 22.1 degree are analyzed in embodiment 1.In comparative example, the surface of contact and the bonding plane angulation of stiffening element of this contacting part is 0.0 degree, is that the piece with existing structure that contacting part forms homogeneous thickness has carried out identical analysis.Described embodiment 1 to the analytical model of each piece of embodiment 5 and comparative example except the bonding plane angulation of the surface of contact of contacting part and stiffening element, other structure is all identical.
In this evaluation test, contacting part to each piece of embodiment and comparative example applies certain side pressure, according to obtaining side pressure strength in the maximum value of the stress of contacting part generation because of this side pressure, the maximum value of the stress that the piece of comparative example is obtained is obtained embodiment's each piece 20 and the side pressure strength ratio of the piece of this comparative example as reference value.
(table 1)
This analysis result has been shown in table 1 and Fig. 6.Fig. 6 is surface of contact and the bonding plane angulation of stiffening element and the plotted curve of the relation between the side pressure strength ratio of expression contacting part.
Table 1 and shown in Figure 6 as described, embodiment 1 all is higher than the side pressure strength of the piece of comparative example to the side pressure strength of each piece 20 of embodiment 5, thereby confirm: because angulation between the bonding plane 25d of the surface of contact 27a of contacting part 27 and stiffening element 25, so side pressure strength improves.Distinguish therefrom: increase towards band is inboard because piece 20 forms the cladding thickness of the covering stiffening element 25 of contacting part 27, compare so form the situation of homogeneous thickness with the cladding thickness of contacting part, received the advantageous effects that can improve the side pressure strength of this piece 20.
And then from analysis result shown in Figure 6 as can be known:, compare with the piece with existing structure under the situation more than 8 degree at the bonding plane 25d angulation α of the surface of contact 27a of contacting part 27 and stiffening element 25, side pressure strength is brought up to more than 1.1 times really.
(evaluation test of high load endurance)
In the evaluation test of high load endurance, make and to have the embodiment 1 that in described side pressure strength evaluation test, is used as analytical model each bar V-type band respectively to the piece of embodiment 5 and comparative example, under the situation of the Belt-type Adjustable-speed device that described each bar V-type band is used for automobile with begin with from automobile starting the time pattern till the low speed traveling identical take away capable condition, allow each bar V-type band test traveling, thus embodiment 1 has been made evaluation to the high load endurance of each piece of embodiment 5 and comparative example.
As shown in Figure 7, this high load endurance evaluation test is to use and is provided with the traveling testing apparatus that driving pulley 41 that pulley diameters is 70mm and pulley diameters be the driven pulley 42 of 127mm carries out in casing 40.
Particularly, make have respectively embodiment 1 to the girth of the piece of embodiment 5 and comparative example be each bar V-type band of 612mm, described each bar V-type band is wrapped on driving pulley 41 and the driven pulley 42, make the inside temperature of casing 40 maintain about 90 ℃, apply the thrust load (DW) of 3285.2N to driven pulley 42, while is with the torque drive driving pulley 41 of 53.9N.m, make the rotating speed of driving pulley 41 reach 2600rpm, allowing each bar V-type take away row till the piece breakage under low speed and the high-load condition.Obtain till this breakage the needed time as the high load endurance of each piece, the high load endurance that obtains with the piece of comparative example is a benchmark, obtains embodiment's each piece 20 and the high load endurance ratio of the piece of this comparative example.
The result of this evaluation test has been shown in table 1 and Fig. 8.Fig. 8 is surface of contact and the bonding plane angulation of stiffening element and the plotted curve of the relation between the high load endurance ratio of expression contacting part.
Table 1 and shown in Figure 8 as described, as can be seen: embodiment 1 is to greater than the high load endurance of the piece of comparative example 0.90 times of the high load endurance of each piece 20 of embodiment 4, the high load endurance only slightly descends, but the high load endurance of embodiment 5 piece 20 but drops to 0.8 times near the high load endurance of the piece of comparative example.From result shown in Figure 8 as can be known: at the bonding plane 25d angulation α of the surface of contact 27a of contacting part 27 and stiffening element 25 under the situation below 20 degree, compare with piece with existing structure, the high load endurance is greater than 0.9 times, the decline of high load endurance is inhibited, and fall is less.
Draw by above-mentioned each evaluation test judgement: because the bonding plane 25d angulation α of the surface of contact 27a of contacting part 27 and stiffening element 25 is more than 8 degree and below 20 degree, so compare with V-type band with existing structure, the side pressure strength of piece 20 is brought up to more than 1.1 times really, increase rate is bigger, and the high load endurance of piece 20 is greater than 0.9 times, the decline of high load endurance is inhibited, and fall is less.
The effect of-the first mode of execution-
Therefore, according to this first mode of execution, on a pair of beam 20a of portion, 20b, be set to cover the bi-side of the stiffening element 25 that each piece 20 is strengthened and the resin system contacting part 27 that contacts with the groove face of each belt wheel 3,4 forms: the cladding thickness that covers stiffening element 25 increases towards band is inboard.Thus, contacting part 27 resiliencies own are improved towards band is inboard, as shown in Figure 5, even contacting part 27 is towards the ground distortion of band outside curve in taking away row, also can be more just more significantly the contacting part 27 suffered side pressures from each belt wheel 3,4 be scatter towards band is inboard.At this, the piece 20 the when double dot dash line among the figure is illustrated in contacting part 27 and does not have crooked state.Also have, the distribution situation that the curve 31 expression contacting parts 27 among the figure are subjected to from the side pressure of belt wheel 3,4, this curve 31 is illustrated in perpendicular to far away more from this groove face on the direction of belt wheel 3,4 groove faces, and the side pressure of this part is just big more.So, because scatter towards the inboard side pressure that just can significantly contacting part 27 be subjected to more of band more, so can suppress side pressure that contacting part 27 is subjected to inboard local increase of band.Therefore, can suppress contacting part 27 breakages on a pair of beam 20a of portion, the 20b in each piece 20.
And, the dispersion that is subjected to along with contacting part 27 from the side pressure of each belt wheel 3,4, the contacting part 27 suffered shearing forces from each belt wheel 3,4 are also scatter and can be suppressed it inboard local increase of band, therefore can suppress contacting part 27 and accelerate, and the wear-resistant life-span of contacting part 27 is improved in the inboard concentrated wear of band.
And then, because contacting part 27 with each belt wheel 3, the surface of contact 27a of 4 groove face contact and the bonding plane that is provided with contacting part 27 (side) the 25d angulation α of stiffening element 25 are more than 8 degree and below 20 degree, so the resiliency of contacting part 27 is improved really and well towards the band inboard, and can fully contacting part 27 be subjected to from each belt wheel 3,4 side pressure scatter, therefore shown in above-mentioned side pressure strength evaluation test, can improve the side pressure strength of each piece 20 fully, and can make contacting part 27 in the higher mechanical strength of the inboard maintenance of band, thus shown in the evaluation test of above-mentioned high load endurance like that, realize more by a small margin decline when band can make the endurance of each piece 20 during traveling under high-load condition.Thus, can suppress each piece 20 breakages well.Consequently, can prolong the working life of high load transmission with V-type band B.
(other mode of execution)
In described first mode of execution, the cladding thickness of contacting part 27 is increased towards band is inboard, but the present invention is not limited to this, the cladding thickness that only makes contacting part 27 like that on the 20a of inner beam portion shown in also can image pattern 9 increases towards band is inboard, like that only makes the cladding thickness of contacting part 27 towards the inboard increase of band on the 20b of beam portion outside shown in can also image pattern 10.As mentioned above, as long as the cladding thickness of contacting part 27 is increased towards band is inboard, just can suppress this cladding thickness towards inboard contacting part 27 breakages that increase of band.
In described first mode of execution, the bonding plane that is provided with contacting part 27 (side) the 25a angulation α of surface of contact 27a that the groove face with belt wheel 3,4 of contacting part 27 contacts and stiffening element 25 is more than 8 degree and below 20 degree, but the present invention is not limited to this, the bonding plane 25d angulation of the surface of contact 27a of this contacting part 27 and stiffening element 25 can also can be spent greater than 20 less than 8 degree.
In described first mode of execution, be illustrated as the situation of the stepless speed changes devices T of belt driver V-type band B is used for, but the present invention is not limited to this, also V-type band B can be applied in other the belt driver.
Industrial applicibility
In sum, the present invention particularly is applicable to the V-belt for high-load transmission of the contact site breakage that contacts with the V belt wheel that requires each piece of inhibition to V-belt for high-load transmission of great use.
Claims (4)
1. high load transmission V-type band, comprise: extend and form the tension band of ring-type and arranging a plurality of that are installed on the described tension band mutually along the belt length direction along the belt length direction, each described has stiffening element that the piece main body is strengthened and the contacting part that is formed from a resin, this contacting part is set to cover at least a portion of this stiffening element, and contact with the groove face of V belt wheel, it is characterized in that:
Described contacting part forms: the cladding thickness that covers described stiffening element increases towards band is inboard.
2. high load transmission V-type band according to claim 1 is characterized in that:
Be provided with a pair of described tension band that extends parallel to each other,
Described stiffening element has: clip described a pair of tension band and a pair of beam portion that establishes and be arranged between the described a pair of tension band post portion that described a pair of beam portion is joined to one another,
The cladding thickness that is arranged on the described contacting part at least one the beam portion in the described a pair of beam portion increases towards band is inboard.
3. high load transmission V-type band according to claim 2 is characterized in that:
The cladding thickness that is arranged on the described contacting part in the described a pair of beam portion all increases towards band is inboard.
4. high load transmission V-type band according to claim 1 is characterized in that:
The side angulation that is provided with described contacting part of surface of contact that the groove face with described V belt wheel of described contacting part contacts and described stiffening element is more than 8 degree and below 20 degree.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-238974 | 2008-09-18 | ||
| JP2008238974 | 2008-09-18 | ||
| PCT/JP2009/004292 WO2010032387A1 (en) | 2008-09-18 | 2009-09-01 | V-belt for transmitting high load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102132067A true CN102132067A (en) | 2011-07-20 |
| CN102132067B CN102132067B (en) | 2014-07-30 |
Family
ID=42039239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980132891.3A Expired - Fee Related CN102132067B (en) | 2008-09-18 | 2009-09-01 | V-belt for transmitting high load |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5325889B2 (en) |
| CN (1) | CN102132067B (en) |
| DE (1) | DE112009002225T5 (en) |
| WO (1) | WO2010032387A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103782059A (en) * | 2012-03-19 | 2014-05-07 | 阪东化学株式会社 | V-belt for transmitting high load |
| CN105715743A (en) * | 2014-12-23 | 2016-06-29 | 罗伯特·博世有限公司 | Transmission belt |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6109148B2 (en) * | 2012-03-19 | 2017-04-05 | バンドー化学株式会社 | V belt for high load transmission |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2545986B2 (en) | 1989-07-12 | 1996-10-23 | 日本電気株式会社 | Logical path multiplexing method |
| JP2992022B1 (en) * | 1998-10-16 | 1999-12-20 | バンドー化学株式会社 | V belt for high load transmission |
| JP3464922B2 (en) * | 1998-10-16 | 2003-11-10 | バンドー化学株式会社 | V belt for high load transmission |
| JP3780237B2 (en) * | 2002-08-19 | 2006-05-31 | バンドー化学株式会社 | V belt for high load transmission |
| JP2005140222A (en) * | 2003-11-06 | 2005-06-02 | Bando Chem Ind Ltd | Heavy load transmission v belt |
| CN100523543C (en) * | 2004-08-06 | 2009-08-05 | 雅马哈发动机株式会社 | V-shaped belt, belt-type transmission, and saddle type-vehicle |
-
2009
- 2009-09-01 JP JP2010529600A patent/JP5325889B2/en active Active
- 2009-09-01 DE DE112009002225T patent/DE112009002225T5/en not_active Ceased
- 2009-09-01 CN CN200980132891.3A patent/CN102132067B/en not_active Expired - Fee Related
- 2009-09-01 WO PCT/JP2009/004292 patent/WO2010032387A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103782059A (en) * | 2012-03-19 | 2014-05-07 | 阪东化学株式会社 | V-belt for transmitting high load |
| US8920273B2 (en) | 2012-03-19 | 2014-12-30 | Bando Chemical Industries, Ltd. | V-belt for transmitting high load |
| CN103782059B (en) * | 2012-03-19 | 2015-05-20 | 阪东化学株式会社 | V-belt for transmitting high load |
| CN105715743A (en) * | 2014-12-23 | 2016-06-29 | 罗伯特·博世有限公司 | Transmission belt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102132067B (en) | 2014-07-30 |
| JP5325889B2 (en) | 2013-10-23 |
| JPWO2010032387A1 (en) | 2012-02-02 |
| WO2010032387A1 (en) | 2010-03-25 |
| DE112009002225T5 (en) | 2011-07-28 |
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Granted publication date: 20140730 Termination date: 20180901 |