CN208442211U - Car duplex V-belt - Google Patents

Abstract

The utility model relates to car duplex V-belts, the duplex V-belt includes top connection canvas, cotton rope, body rubber and the waveform tooth on V-arrangement tooth for connecting V-arrangement tooth, the car duplex V-belt with a thickness of 12mm to 13.5mm, waveform tooth high 2.9mm to 3.7mm, the car duplex V-belt of the utility model, since waveform tooth flute profile is smaller, car duplex V-belt existing for opposite existing market is effectively reduced vibration caused by the insufficient rigidity of car duplex V-belt.

Description

Car duplex V-belt

Technical field:

The utility model relates to car duplex V-belts.

Background technique:

It replaces having prevented violent vibration since multiple single V bands due to commonly using duplex V-belt on coach driving system at present With additional mutation load, two or more V bands are bound up using high-strength canvas, this high-strength canvas enhances skin The stability of band is to avoid belt turning or runs out of belt wheel, to solve the problems, such as such as high load capacity in some applications, frequently High torque starting system etc..

But car is different with automotive V-belt or common industrial joined v-belt with duplex V-belt at present, does not have corresponding Professional standard, in view of the car duplex V-belt of Gates Co., Ltd's production, occupation rate is higher in the domestic market, therefore in the market Car duplex V-belt is produced frequently with the standard of Gates Co., Ltd.

It is not flexible to cooperate with belt wheel since the hardness of car duplex V-belt is higher, improve the flexibility of duplex V-belt Very important designing points are designed as belt.Generally it is provided on each V-type tooth of duplex V-belt along strip length direction Upper bumps are alternately arranged the waveform tooth to be formed, and generally use big waveform tooth in the market to improve the flexibility of band, waveform tooth Height accounts for the half with overall thickness substantially.The duplex V-belt of the 2/AV15 of Gates Co., Ltd's production at present, thickness are arrived in 12mm Between 14mm, for the flexibility for increasing duplex V-belt, waveform tooth tooth height is traditionally arranged to be 6.0mm or so, and pitch of teeth arrives for 11mm Between 13mm.Although big waveform tooth can improve the flexibility of band, the insufficient rigidity of band will also result in simultaneously, in transmission process It causes joined v-belt to shake, generates and exceed expected noise and vibration.Market generallys use the thickness for increasing joined v-belt, for example increases Add tape thickness to 15mm or 17mm, or increases the rigidity of cotton rope to improve the rigidity of band, but the two will definitely increase accordingly Cost, therefore be badly in need of providing a kind of economical and practical and effective new car duplex V-belt to solve caused by insufficient rigidity Vibration problem.

Summary of the invention:

To solve the above problems, the utility model provides a kind of new car duplex V-belt, the top including connecting V-arrangement tooth Layer connection canvas 1, cotton rope 2, body rubber 3 and the bumps along strip length direction on V-arrangement tooth 5 are alternately arranged the wave to be formed Shape tooth 4, the thickness H of the car duplex V-belt are 12mm to 13.5mm, and the high h of waveform tooth is 2.9mm to 3.7mm.

Preferably, a height of 3.3mm of waveform tooth tooth.

The profile angle Ab of the band is 34 ° to 40 °

Waveform tooth pitch of teeth is 6mm to 6.6mm.

Preferably, pitch of teeth 6.6mm.

Preferably, waveform tooth tooth fillet radius is 1.65mm, radius at tooth tip 1.65mm.

Bandwidth Wb is 35.4mm to 36.2mm.

Preferably, bandwidth Wb is 35.8mm.

It can effectively improve the vibration problem due to caused by band insufficient rigidity using the double grouped belts of the car of the utility model, Compared to increase band thickness or select higher stiffness cotton rope, the both economical material benefit of car duplex V-belt of the utility model, and Improved effect is obvious.

Detailed description of the invention

Fig. 1 is the partial structural diagram of the utility model duplex V-belt；

Fig. 2 is the cross-sectional view of the utility model duplex V-belt；

Fig. 3 is A-A position profile figure in Fig. 2.

Specific embodiment:

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail, with Lower embodiment is not limitations of the present invention for illustrating the utility model.

As shown in Figure 1, Figure 2, Figure 3 shows, car duplex V-belt generally includes the top layer connection canvas 1 of connection V-arrangement tooth 5, cotton rope 2 and body rubber 3, since duplex V-belt rigidity is not larger flexible, generally in the upper lower part as shown by the dash line in figure 2 of V-arrangement tooth It is provided with and is alternately arranged the waveform tooth 4 to be formed along strip length direction bumps.For the bearing capacity for improving band, part-structure is in waveform Cloth 6 with teeth is covered on the outer surface of tooth 4.To increase cohesive force, adhesive layer is provided between top layer connection canvas and body rubber (not shown), cotton rope 2 are located in adhesive layer, prevent cotton rope 2 from connecting the removing of canvas 1 with body rubber 3 and top layer, band is caused to lose Effect.

The design feature of the car duplex V-belt of the utility model is that the thickness H of duplex V-belt is 12mm to 13.5mm Left and right, preferably 13mm；The profile angle Ab of band is 34 °~40 °；The high h of waveform tooth tooth is 2.9 to 3.7mm, and preferably h is 3.3mm；The top width Wb of band is 35.4mm to 36.2mm, and preferred Wb is 35.8mm；Waveform tooth pitch of teeth is 6mm to 6.6mm, is Increase the flexibility of band, pitch is preferably 6.6mm；Waveform tooth tooth fillet radius is preferably 1.65mm, and radius at tooth tip is 1.65mm。

Increase to 15mm compared to tape thickness H, single joined v-belt saving sizing material calculates (practical increase 2mm thickness by about 5 yuan Sizing material is much higher than this cost), annual domestic car sales volume reaches more than 50 ten thousand within 2017, then this will save more than 250 ten thousand yuan, economy Benefit is considerable.

The verifying of another real vehicle increases the diameter of cotton rope to improve the rigidity of duplex V-belt, the extensional rigidity of cotton rope by More than 2000 thousand Ns are changed to more than 4,000 thousand Ns, vibrate being not obvious for reduction.

And the car duplex V-belt of the utility model overcome it is traditional by increase cotton rope rigidity or increase duplex group V Tape thickness improves prejudice of the V with rigidity, provides a kind of car duplex V-belt of small waveform toothing, on the one hand meets The flexibility requirements of band also solve vibration caused by duplex V-belt insufficient rigidity simultaneously.It demonstrate,proves, adopts through motorbus factory inspection at present It is obviously reduced with being vibrated after the car duplex V-belt of the utility model structure, the car duplex V-belt gram of the utility model structure It has taken the thickness of traditional concept change band or has increased the rigidity of cotton rope to improve the idea of the rigidity of band, and is more effective, and more passed through Ji.

Claims (9)

1. a kind of car duplex V-belt, the top layer including connecting V-arrangement tooth (5) connects canvas (1), cotton rope (2), body rubber (3) And it is located at the waveform tooth (4) on V-arrangement tooth (5), which is characterized in that the duplex V-belt thickness (H) is 12mm to 13.5mm, institute Stating waveform tooth high (h) is 2.9mm to 3.7mm.

2. car duplex V-belt as described in claim 1, which is characterized in that a height of 3.3mm of waveform tooth tooth.

3. car duplex V-belt as described in claim 1, which is characterized in that profile angle (Ab) is 34 °~40 °.

4. car duplex V-belt as described in claim 1, which is characterized in that the pitch of teeth of waveform tooth (4) arrives for 6mm 6.6mm。

5. car duplex V-belt as claimed in claim 4, which is characterized in that pitch of teeth 6.6mm.

6. car duplex V-belt as claimed in claim 5, which is characterized in that the waveform tooth tooth fillet radius is 1.65mm, radius at tooth tip 1.65mm.

7. car duplex V-belt as described in claim 1, which is characterized in that bandwidth (Wb) is 35.4mm to 36.2mm.

8. car duplex V-belt as claimed in claim 7, which is characterized in that bandwidth (Wb) is 35.8mm.

9. car duplex V-belt as described in claim 1, which is characterized in that waveform tooth outer surface covers cloth with teeth (6)。