transmission housing introduce

Transmission housing: The transmission housing and cover are used to install the transmission mechanism, shifting device, and some control mechanisms, while storing lubricating oil. In order to reduce the weight of the car, for sedans, the transmission housing and cover are often made of aluminum alloy or magnesium alloy. The transmission housing and cover of medium and heavy vehicles are generally made of cast iron to ensure their strength requirements. The material of the transmission housing is gray cast iron, commonly used as HT200. The transmission housing is the basic component, Used for installing and supporting all parts of the gearbox and storing lubricating oil. It has precise boring holes for installing bearings. The gearbox bears variable loads, so the housing should have sufficient stiffness, with reinforced inner walls and complex shapes, mostly made of castings (made of gray cast iron, commonly HT200). For ease of installation, the transmission and control parts are often made into split sections, and the box cover is connected to the housing by bolts and reliably positioned. There are oil filling and drainage ports, and oil level inspection dipstick ports on the housing, Heat dissipation should also be considered)

Common faults of automatic transmissions include:

Common faults of automatic transmissions include: 1. Oil leakage: Oil seeps out from the gearbox housing or oil pan due to aging seals, poor sealing, and poor manufacturing processes, resulting in sand holes in the housing; 2. Engine shutdown when shifting into D or R gear: The engine shutdown when shifting into D or R gear may be due to damage to the locking solenoid valve; 3. Locked gear: The input and output signals of the gearbox are incorrect or the circuit components themselves have poor wiring; 4. No response when shifting: Shift into D or R gear, then release the brake and the vehicle will not move. This situation is often caused by damage to the input shaft or reverse clutch; 5. During driving, the vehicle may experience gear shifting shock and jerking, which may be caused by dirty transmission oil, resulting in valve body jamming; 6. Transmission slippage and weak acceleration: When the car is driving, there is a sound of the engine idling due to the acceleration of the fuel gate. This phenomenon is mostly caused by burnt clutch plates

BEIJING-U7 introduce

The super practical storage space of Beijing Automotive Beijing-U7 (formerly known as Beijing Automotive Zhidao U7) has reduced a lot of trouble for travel. The most pleasing aspect of the front storage space is its central armrest box. The two-piece design supports left and right split opening. This design is generally only found in high-end models of Mercedes Benz and BMW, and it is not easy to make the armrest box so innovative at this price point, The space design of this central armrest box is also excellent, with a large depth and strong practicality. In addition, there are two central cup holders in front of the central armrest box, which are just right for storing mineral water. The largest storage compartment in the central control area is located in the area in front of the gear lever, and there are also two USB ports and a 12V power supply. In addition, there is a small storage compartment on the left side of the driver's side, It can be used to store change, bills, and other miscellaneous items. The storage space inside the front glove box and door panel is also large, and the interior of the glove box is treated with flocking, so it is not afraid of scratching valuable items