The influence of gear and ring gear quality on automobile engine

 When the car starter is started, the driving gear and the engine gear ring make an impact idling sound. what is the reason?

1. Deformation of meshing cutting surface of automobile gear ring gear

Since the multi-cylinder engine often stops in the cylinder with a large compression force when it is turned off, the impact part of the car gear ring gear is roughly the same every time it is started, and the cutting surface of the ring gear is deformed over time. In this case, the car The gear ring can be turned at an angle or front. Flip it over and reinstall. Under normal circumstances, if it cannot be started once, it needs to wait for the gear to return to the original static position before starting the second time.

2. The gap between the starter drive gear and the car gear ring gear is too large

(The axial distance between the gear and the ring gear should be kept at 2.5-5 mm).

When the main circuit is connected, the starter gear spins at high speed before engaging the car ring gear. When the two touch, there is a sound due to the impact, the two cannot engage, and the engine cannot start. If this fault occurs, you can use the static state of the electromagnetic switch of the starter. Increase the gap between the moving contacts; add pads between the electromagnetic switch and the rear shell of the starter; eliminate the excess gap of the support pin in the middle of the starter fork; replace the wear on the fork Smaller sliders or pulleys; when installing the ring gear on the freewheel, do not press the ring gear on the bottom of the flywheel, leave a 2-3mm gap or choose a thicker ring gear. In addition, the overall length of some starter drive gears sold on the market does not meet the standard, and the height of the flywheel and ring gear produced by some informal factories does not meet the standard, which can easily cause this phenomenon. When buying, you should pay special attention not to be greedy for cheap and cause greater losses.

Teeth are an important component that affects the performance of the ring gear. When using the ring gear, high-frequency quenching is usually used to improve the strength of the gear. What is the impact of increasing the strength of the ring gear on the application of the ring gear?

1. Cost. It can reduce the cost of the ring gear and save resources.

2. Quality. It can improve the quality of the ring gear, so you can use it with confidence.

3. Requirements. It can meet the design requirements of the ring gear.

4. Consumption. It can reduce the consumption time of ring gear materials.

5. Heat treatment. It can shorten the heat treatment time of the ring gear.