Steering device, steering hydraulic control oil circuit and forklift comprising

A steering device and steering hydraulic technology, which is applied in the direction of hoisting device, steering mechanism, mechanical steering gear, etc., can solve the problems of large distance between hinged turning points, inaccurate control of steering range, and steering can not reach 220°, so as to improve steering The effect of precision
CN110539795AInactive Publication Date: 2019-12-06BANYITONG SCI & TECH DEVING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BANYITONG SCI & TECH DEVING
Publication Date
2019-12-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a steering device. The steering device comprises a front hinge frame, a rear hinge frame, a hinge spindle and a power system, wherein the front hinge frame is used for being connected with an elevator body; the rear hinge frame is used for being connected with a vehicle body; the front hinge frame and the rear hinge frame are connected with the hinge spindle as the axis toform a hinge mechanism; the power system is used for driving the hinge spindle to be in linkage with the front hinge frame to rotate relative to the rear hinge frame. According to the steering device,a hinge steering device of the compact structure is arranged between the vehicle body and the elevator body so that the elevator body can turn to the left and right sides of the vehicle body by a large angle, and the requirements for operation of a forklift in a narrow roadway are met; meanwhile, the steering device conducts control through a hydraulic system and conducts steering power transmission through a gear transmission unit and can accurately realize the steering angle and improve the steering precision; in addition, a balance valve is arranged in a steering control oil way to realizelocking of the steering state; and thus, the forklift can maintain the steering state.
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Description

technical field

[0001] The invention relates to the technical field of forklift equipment, in particular to a steering device, a steering hydraulic control oil circuit and a forklift. Background technique

[0002] Articulated forklifts operate in narrow lanes, and the required working space directly affects the operating efficiency and storage capacity. The articulated steering mechanism is designed for the main components of the articulated forklift to minimize the space required for maneuvering and improve warehouse capacity;

[0003] At present, there are many forms of articulated steering mechanisms, such as direct connection of hydraulic motors, direct connection of slewing ring gears, chain transmission of hydraulic cylinders, and transmission of rotary hydraulic cylinders. All of the above transmission methods have the following obvious disadvantages:

[0004] 1. The steering angle is too small, and the steering cannot reach more than 220°;

[0005] 2. The size of t...

Claims

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