Road roller steering gear XCMG road roller spare parts

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Chinese XCMG XS143 Steering gear，Chinese XCMG XS123 Steering gear，Chinese XCMG XMR303 Steering gear，Chinese XCMG XMR403 Steering gear，Chinese XCMG XP303S Steering gear，Chinese XCMG XS265H Steering gear，Chinese SHANTUI XS395 Steering gear，Chinese SHANTUI XS365 Steering gear，Chinese SHANTUI XS225JS Steering gear，Chinese SHANTUI XD143S Steering gear.

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Steering gear

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description

The function of the steering gear is to appropriately transform the steering torque and steering angle from the steering wheel (mainly deceleration and increase torque), and then output to the steering tie rod mechanism to turn the car, so the steering gear is essentially a deceleration transmission device. There are many types of steering gears, such as rack and pinion type, recirculating ball type, worm-crank pin type, power steering gear and so on.
There have been many types of diverters in history, but many have been eliminated. According to the power-assisted form, the steering gear can be divided into mechanical (no power-assisted) and power-powered (power-assisted).
Mechanical steering gears can be divided into rack and pinion type, recirculating ball type, worm crank pin type, recirculating ball crank pin type, worm roller type, etc. according to the different structure forms. Commonly used are rack and pinion type, recirculating ball type, worm crank pin type.
The rack and pinion steering gear is the simplest type of steering gear. It has the advantages of simple structure, compactness, high rigidity, low cost, sensitive steering, high forward and counterattack rates, easy to arrange, and it is especially suitable for use with candle suspension and MacPherson suspension, and it can also be used directly. Drive the tie rod to simplify the steering transmission mechanism. Therefore, it is widely used in cars and mini- and light-duty trucks.
The recirculating ball steering gear has high forward and counterattack rates, so it is easy to operate, has a long life, and is stable and reliable. However, due to the high counterattack rate, it is easy to transmit the impact of the road to the steering wheel.
Power steering gear is actually a combination of mechanical steering gear and steering booster. According to the different energy transmission media, the power steering gear has two types: pneumatic and hydraulic. Among them, hydraulic power steering gear can be divided into integral type (mechanical steering gear, steering power cylinder and steering control valve) according to the different arrangement and connection relationship of the mechanical steering gear, steering power cylinder and steering control valve in the steering device. The three steering control valves are designed as a whole), semi-integral type (the mechanical steering gear and steering control valve are designed together, and the steering power cylinder is independent) and the split type (the mechanical steering gear is independent, the steering control valve and the steering power cylinder are independent) Designed as one) Three structural types.
It is worth noting that the pneumatic power steering gear should not be used for trucks with extremely heavy loading, because the working pressure of the pneumatic system is low (generally not higher than 0.7MPa), and when used in heavy vehicles, the size of its components will be too large. The working pressure of hydraulic power steering gear can be as high as 10MPa or more, so the size of its components is small. The hydraulic system works without noise, has a short working lag time, and can absorb the impact from uneven roads. Therefore, hydraulic power steering gears have been widely used in various types of automobiles.