What principle?

The basic principle of the manual gearbox is relatively simple. The power input shaft is connected to the clutch. The power transmitted by the engine from the clutch is transmitted to the central shaft through the input shaft, and then transmitted to the gear set by the central shaft. Gear sets are gears with different diameters. The power is transmitted between the gears and then transmitted to the Dongguan Huangjiang used car wheel by the output shaft.

Common manual transmissions are divided into two-shaft type and three-shaft type.

When shifting the gear, step on the clutch, shift the gear to neutral, and cut off the connection between the engine and the input shaft. At this time, the input shaft, the central shaft, and the gear set (green, red, blue parts in the figure) are rotating due to inertia Register online , and then switch gears, because the synchronizer (purple part in the picture) can make it easier to get into gear.

What if you do n’t step on the clutch? Without cutting off the power from the perceptual motive, the input shaft, the central shaft, and the gear set are rotating with the engine. At this time, if you want to smoothly engage the gear, the trick is four words: the same speed. (The blue part and the purple part have the same speed)

How to do?

Clutch-free shifting eliminates the need to step on the clutch, which is composed of two parts: off gear and on gear.

Taking off gear is relatively simple. You can just take the gear to neutral at the moment of releasing the throttle. This is due to the cost of website construction in the moment of releasing the throttle, and the bite force between the gears is reduced instantly. What if you miss this moment? When blocking, due to the resistance of all parties, the gears also have a bite force under this reaction force. At this time, if you want to take off the gear, you need to tap the throttle and use the loose oil to remove the gear at the same time. The principle is the same as above.

The real difficulty is in gear. As mentioned above, when entering gear, the speed of the synchronizer must be matched with the gear.

For example, suppose your second-hand Huangjiang Dongguan car runs at 2500rpm at 2nd speed and 30km / h, and at 1500rpm at 3rd speed and 30km / h. If you accelerate to 30km / h in 2nd gear, there is no clutch shift at this time. After loosening the throttle and off gear, when the engine speed is about to fall to 1500rpm, you can put the gear in 3rd gear. It must be gentle, and pulling hard or hard can easily damage the gearbox.

In reality, different Dongguan Huangjiang used car types have different matching speeds and different gears when used in different speeds of Huangjiang. If you want to practice shifting without clutch, you need to change Jiang second-hand car dealers themselves know the speed of the car without mercy. It is also necessary that you have a deft right foot and control the speed accurately and skillfully through the throttle.

How to practice?

When the speed cannot be accurately matched at first, you can use the natural drop of the speed to master the rhythm, and practice the movement first: loose oil, pick off, stop, and enter the gear. Moreover, when the speed of second-hand cars in Dongguan Huangjiang is low, the difficulty of the drill will be much less, because the lower the speed, the lower the accuracy requirements for matching.

You can also find the feeling without first pressing 2 liters 3 at 30 km / h, 3 liters 4 at 40 km / h, and 4 liters 5 at 50 km / h. After training, then gradually practiced at a higher speed of Dongguan Huangjiang used car speed.