A crawler tractor steering system with electromechanical and hydraulic integrated control
An integrated control and steering system technology, applied in the direction of non-deflectable wheel steering, steering mechanism, vehicle components, etc., can solve the problems of difficulty in realizing driving automation, difficulty in arranging and fixing the lever mechanism, and inconvenient adjustment of the lever stroke, etc., to achieve Easy to automate expansion, save layout space, and easy to arrange the whole machine
Active Publication Date: 2022-02-01
FIRST TRACTOR
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Problems solved by technology
Moreover, the steering lever stroke of this steering mechanism is large, and it is difficult to arrange and fix the lever mechanism on the whole machine. It is inconvenient to adjust the lever stroke. At the same time, the operating efficiency is relatively low. Fatigue makes it difficult to automate driving
Of course, the steering wheel steering mechanism using the differential steering system has also been used on tracked vehicles, but this method has high cost and complicated structure.
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[0033] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.
[0034] It should be noted that unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those with ordinary skill in the field of the present invention. "First", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a", "an" or "the" do not denote a limitation of quantity, but mean that there is at least one. Words such as "comprises" or "comprises" and similar terms indicate that the elements or items preceded by "comprises" or "comprises" include...
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A crawler tractor steering system with integrated electromechanical hydraulic control. This solution realizes an integrated steering system with mechanical, electronic control, and hydraulic pressure through the optimization of the overall system. Specifically, the steering controller communicates with the encoder and the The steering valve is connected, and the encoder converts the rotation angle and direction of the steering wheel into a CAN bus signal and transmits the signal to the steering controller, and the steering controller recognizes the CAN signal output by the encoder, And output the control signal to the electric control component of the steering valve to control the movement of the built-in spool of the steering valve, and then control the output direction of the pressure oil and the pressure of the output pressure oil. The steering process can be realized without the driver stepping on the brake pedal, which can automatically brake to assist the steering, reduce driver fatigue, and provide good operating comfort; secondly, the steering controller and the steering wheel are connected through electricity and hydraulics, and there is no rod connection mechanism, which saves It saves the layout space and is easy to arrange the whole machine.
Description
technical field [0001] The invention relates to the technical field of tracked vehicle steering control, in particular to a tracked tractor steering system with electromechanical and hydraulic integrated control. Background technique [0002] The steering of traditional crawler tractors cuts off the power of one side of the track through the steering clutch, and assists with braking to realize the speed difference between the two sides of the track to complete the steering. The steering clutch control device is divided into two categories: mechanical and hydraulic. The mechanical type uses a lever mechanism to control the dry steering clutch, specifically by manipulating the left and right pull rods distributed in front of the driver to control the separation and combination of the left and right steering clutches, and at the same time assists in stepping on the left and right brake pedals to complete the steering action . The hydraulic type uses a built-in oil cylinder to...
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IPC IPC(8): B62D11/00
CPCB62D11/003B62D11/005B62D11/006
Inventor 张举鑫史金钟罗明泉孔令泉王岩李文娟赵鑫张建锋段华威裴卫强
Owner FIRST TRACTOR