2013 Power Push Rear Wheels And Roll In At Walk

Power Push Rear Wheels And Roll In At Walk
The thrust of the rear wheels is equal to the force

picture diagram of custody engine when running

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of attraction the rear wheels. Motor can move forward, with the tensile force force against prisoners during walking. Prisoners in Time Runs Prisoners are a total of barriers to rotation (its frictional resistance when tires spinning on the surface
road), air resistance (wind resistance when motor runs) and barriers uphill (when climbing). Calculated rotation barriers friction of the tire barriers, weight of the motor. wind resistance is the resistance of the part front of the motor, the motor speed. Barriers uphill is amount of angle calculations the slope of the road and gross weight  of the motor.

Power Push Rear Wheels
The thrust of the rear wheels is the engine torque enhanced by reduction of teeth, and tooth gearbox sprocket. which cause the motor to move forward and against the force of the current prisoners runs. 

Figure  Diagram of the impetus behind the wheel

 

The relationship between the rear wheels and the thrust force torque are:

 

Power curve diagram of the curve , the value of T calculated " u " (Efficiency transmission) depending on the position of the teeth , and the type of coupling factor other . For example , the motor YB 50 , the amount of " u " is 93 % in 2nd gear , 87 % in 3rd gear and 85 % in 4th gear . From the above formula is known that the driving force behind the large wheels when the engine torque is also maximum . Therefore YB motors reach maximum power 50 power thrust . As shown in the picture above , thrust wheels calculated back from his teeth in each crankshaft rotation torque and the whole deselerasinya ratio . In the figure , the boundary between the slashes in each changes in teeth ( the relationship between the engine and the speed of rotation motor) so pu tion engine at that time formed a line vertical thrust curve in each rear wheel spins. on peak -shaped curve as shown , visible line of barriers the course . Speed ​​is probably the position of the teeth . and the under the curve showed less good rider , for position of teeth . Example , the motor can climb at a gradient of 15% in 3rd gear but can not climb at a gradient of more than 25 % . If lowered in 2nd gear , because it can easily climb a gradient of more than 20 % in 2nd gear to line the course obstacles . thrust maximum is 70 kg while the engine turns 6000 rpm ( where produced maximum torque ) and speed 15km / h . At this time can climb at a gradient of 50% ( tan 0.5 = 26.5 ) or also called power Maximum grade ability but in its use , power tanjaknya determined by the distance of the motor can be uphill tanjakkan the steeper the slope , the general value of the gradient used if the motor is located on the slope . As seen in catalog , which also determined the weight of the motor , tire friction coefficient and friction coefficient of the road . In the case of YB50 value = 0.32 , which is 18 ° . when running in 4th gear , 30 km / H , the impetus behind the wheel of 17.4 kg , with obstacles on the road course average 3.1 kg , the difference in excess margin has a thrust of 14.3 kg . The greater the excess margin the greater the acceleration and the ability tanjaknya and acceleration is strongly influenced by the opening angle Her gas . Border / meetings between the curve road barriers on the road flat curve thrust on top gear ( 4th gear on YB50 ) is the maximum speed of the motor , the YB50 around 74km / h .