Product Description

SANY crane steering gear steering gear assembly NT11090B crane steering gear

A229900005684 Suitable for Sany mobile cranes STC250T-STC800T use

Function:

The crane steering gear steering gear mainly has the following important functions:

1. **Transmission of steering torque**
- **Transmission of force**: The torque generated by the driver turning the steering wheel is transmitted to the steering shaft of the crane through the steering gear, which in turn controls the steering of the front wheels or related steering components, realizing the change of the driving direction of the crane. This is the basis for the crane to be able to steer according to the driver's intention, which ensures that the crane can accurately respond to the driver's operating instructions under various working conditions.
- **Precise control**: The steering gear can convert the rotation angle and strength of the steering wheel into the displacement and movement of the steering drive mechanism in a more precise way, so that the steering of the crane is more accurate, to meet the requirements of the crane's steering accuracy under different operating scenarios, for example, accurate steering control is particularly important when carrying out fine work in narrow sites.

2. **Provide steering assistance**.
- **Reduce driving fatigue**: In the power steering system, the steering gear is combined with a hydraulic or electronic booster device to provide additional steering assistance to the driver. This makes the driver in the operation of the steering wheel does not need to rely entirely on their own strength to overcome the resistance of the crane steering, greatly reducing the driver's operating burden, especially in a long period of continuous operation or large cranes steering resistance, can effectively reduce the driver's fatigue.
- **Improve handling comfort**: The existence of power assist system allows the driver to control the steering wheel more easily, so that the steering process is more stable and smooth, which improves driving comfort and maneuverability, and helps the driver to concentrate better on the crane operation, improving work efficiency and operational safety.

3. **Maintaining vehicle stability**
- **Maintaining driving stability**: The design and adjustment of the steering gear has an important impact on the overall stability of the crane. It can ensure that the crane in the driving process, especially in the turn, to maintain a relatively stable attitude and driving trajectory, to avoid improper steering lead to vehicle rollover, loss of control and other dangerous situations. By reasonably distributing and transferring the steering torque, the force between the front and rear wheels or left and right tires of the crane is more balanced, thus improving the stability and safety of the vehicle.
- **Adapt to different road conditions**: Under different road conditions, such as smooth road, rugged mountain road, loose sand, etc., the traveling state of the crane will be different, and the steering needs to flexibly adjust the transmission and distribution of the steering torque according to the actual road conditions, in order to ensure that the crane always has sufficient stability and maneuverability, so that it can adapt to a variety of complex working environments.

4. **Protection of steering system components
- **Cushioning and damping effect**: Some parts in the steering, such as shock absorber and rubber cushion, can play the role of cushioning and damping. In the process of crane driving, when encountering road bumps, impacts, etc., these parts can absorb and disperse part of the impact force, reduce the vibration and impact transmitted to other parts of the steering system, thus protecting the steering system's precision parts from damage and prolonging its service life.
- **Preventing overload damage**: The steering gear is also able to limit the size of the steering torque, avoiding overload damage to the steering system due to improper operation by the driver or excessive steering torque caused by external factors. When the steering torque exceeds the set safety range, the steering gear can be restricted or relieved through the internal safety mechanism to protect the normal operation of the steering system.