What is the problem with severe overheating of power steering fluid?
1 Answers
Overheating of the oil pipe is caused by excessive load. Below is relevant information about the steering gear: 1. Introduction: The automotive steering gear, also known as the steering mechanism or power steering, is the most critical component in the car's steering system. Its function is to amplify the force transmitted from the steering wheel to the steering linkage and change the direction of force transmission. 2. Types of Steering Gears: (1) Rack and Pinion Steering: This is the most common type of steering gear. Its basic structure consists of a pair of meshing pinion and rack. When the steering shaft rotates the pinion, the rack moves linearly. Sometimes, the rack directly drives the tie rod, enabling the steering wheels to turn. Therefore, this is the simplest type of steering gear. Its advantages include simple structure, low cost, sensitive steering, compact size, and direct driving of the tie rod. It is widely used in automobiles. (2) Worm and Sector Steering: This type uses a worm as the driving part and a sector gear as the driven part. The worm has trapezoidal threads, and a finger-like tapered pin is supported by bearings on the sector gear, which is integrated with the steering arm shaft. When steering, the worm is rotated via the steering wheel, and the tapered pin embedded in the worm's helical groove rotates on its own while moving in an arc around the steering arm shaft, thereby driving the sector gear and steering arm to swing and turn the steering wheels through the steering linkage. This type is typically used in heavy-duty trucks requiring greater steering force. (3) Recirculating Ball Steering: The recirculating ball power steering system mainly consists of two parts: mechanical and hydraulic. The mechanical part includes the housing, side cover, upper cover, lower cover, recirculating ball screw, rack nut, rotary valve spool, and sector shaft. There are two pairs of transmission components: one is the screw and nut, and the other is the rack and sector gear or sector shaft. Recirculating steel balls are placed between the screw and rack nut, converting sliding friction into rolling friction, thereby improving transmission efficiency. The advantages of this steering gear are easy operation, minimal wear, and long service life. The disadvantages are complex structure, higher cost, and less sensitive steering compared to rack and pinion steering.
