Forklift steering axle and forklift

Abstract

The disclosure relates to a forklift steering axle and a forklift. The forklift steering axle includes a bridge body, a motor, a steering gear, a steering rack, a left steering mechanism and a right steering mechanism. The steering gear meshes with the steering rack. Both ends of the steering rack are respectively connected with the left steering mechanism and the right steering mechanism, and the motor is used to drive the steering gear to rotate, thereby driving the steering rack to move left and right to realize wheel steering. The above-mentioned forklift steering axle uses the motor as a unique power source, and does not need to share the power source with other power systems. When the forklift turns, it only needs to start the motor to drive the wheels to turn, without starting other power sources, so energy waste can be avoided; and, On the one hand, the present disclosure adopts a motor as a power source, so that the precision of the power source itself is high; on the other hand, a mechanical transmission mechanism such as a rack and pinion is used, so that the transmission precision is also high, so the forklift steering axle has high steering precision.

Description

technical field [0001] The present disclosure relates to a forklift steering mechanism, in particular, to a forklift steering axle and a forklift. Background technique [0002] The existing forklift steering mechanism usually uses an oil pump to drive the hydraulic steering system to realize wheel steering. This hydraulic drive method has the following defects: [0003] 1. High energy consumption of forklifts: Usually, there is only one oil pump on the forklift, which not only provides power for the working system to meet the lifting conditions, but also provides power for the hydraulic steering system to achieve steering. The flow and pressure of the oil pump are generally relatively large , while the flow and pressure required by the hydraulic steering system are relatively small. If the forklift does not perform the lifting operation, it also needs to start the oil pump when it only needs to turn, and the phenomenon of "big horse and small cart" will appear, resulting in ...

AI Technical Summary

Problems solved by technology

[0003] 1. High energy consumption of forklifts: Usually, there is only one oil pump on the forklift, which not only provides power for the working system to meet the lifting conditions, but also provides power for the hydraulic steering system to achieve steering. The flow and pressure of the oil pump are generally relatively large , while the flow and pressure required by the hydraulic steering system are relatively small. If the forklift does not perform the lifting operation and only needs to turn, it also needs to start the oil pump, and the phenomenon of "big horses and small carts" will appear, resulting in waste of power and energy. Greater loss

[0004] 2. Low control precision: Since the hydraulic steering system is composed of a cycloidal rotor pump and a distribution valve, etc., the internal leakage is relatively large, so the steering wheel angle and the wheel angle cannot achieve a constant correspondence. Under different wheel loads and road conditions, the steering wheel When turning the same angle, the rotation angle of the wheel is different, which will cause the center position of the steering wheel to drift often, which will cause the driver to have an illusion and reduce safety; and the response speed of the hydraulic control is slow, which will also reduce the steering wheel control. the accuracy of

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