Product Introduction

The gear transmission box is a type of component commonly used in vehicles. It plays a very important role in the overall transmission of the vehicle and the transmission efficiency of the automobile engine and plays an extremely important role in the driving process of the vehicle. The gear transmission box is a kind of transmission component that needs to be used when the automobile engine is arranged horizontally in the car to handle the transmission of the driving force of the automobile engine to other transmission parts and to meet the vehicle matching work standards. The following is a brief introduction to the function and function of the vehicle gear transmission box and its simple structure.

The function and role of the gear transmission box

1. Transmit the driving force of the automobile engine to the main clutch, and reduce the torque and structural size of the main clutch, gearbox, and planetary steering mechanism according to the speed increase (transmission ratio i=0.7).

2. According to the motor assembled on the transmission box support, when the main clutch and the transmission box are driven in the opposite direction to start the car engine, the starting torque will be increased.

The structure of the gearbox

Automobile and motorcycle transmission gear investment casting The usual gear transmission box is composed of a box body, a box cover, a drive shaft assembly, an intermediate shaft assembly, and a driven shaft assembly. Fill the transmission box with 9~10L lubricating oil, and the height of the oil level is 145mm±2mm. Use No. 18 synthetic hyperbolic gear oil in areas above minus 30°, and use 80W/90 synthetic vehicle gear oil in areas below minus 30°.

The box body is cast with a starter motor base, fixed ears, and cooling fins, and its bottom has an oil drain port and a screw plug, and the upper box surface is assembled with a box cover. Two matching bolts are used for the fixing lug on the side of the car engine on the box body, and the transmission box is fixed on the bracket with ordinary bolts for the fixing lug at the other end. A round hole is drilled on the reinforcing rib of the fixed ear, which is used for assembling the spreader when disassembling. The adjustment pad assembled between the fixed ear and the bracket is used for height adjustment to ensure that the drive shaft of the transmission box is consistent with the axis of the active part of the Geisinger coupling, and the breather and oil injection pipe is installed on the cover.

The principle of gear transmission

That is, a pair of gears with the same modulus (tooth shape) mesh with each other to transmit the driving force from the A shaft to the B shaft to complete the transmission of the driving force. Gear transmission usually refers to a device that transmits motion and power by a gear pair. It is a modern The most widely used type of mechanical transmission method in a variety of equipment.

Features of gear transmission

High-precision transmission, a wide application field, can complete the transmission between any two shafts in parallel shafts, intersecting shafts, intersecting shafts, and other areas, with long service life and high transmission efficiency.

When the automobile engine is working, its driving force is transmitted to the driving gear of the transmission box through the Geslinger coupling, and then transmitted to the main clutch by the driving gear shaft and the driven gear shaft of the intermediate gear. At this time, the transmission ratio is i=0.7, the speed of the output shaft of the transmission box increases and the torque decreases. When the motor is used to start the car engine, the driving force of the motor is transmitted to the crankshaft from the main clutch and starting ring gear in the opposite direction. At this time, the transmission ratio i=1.429, which increases the starting torque.

Detection Systems

Copper Silica Sol Investment Casting