Mechanical hydraulic power steering device for construction vehicles
A mechanical hydraulic and power steering technology, applied in the field of vehicles, can solve problems such as single function, power steering pump can not be reminded in time, power steering pump performance test, etc., to achieve the effect of avoiding accidents
Active Publication Date: 2019-01-29
GUIZHOU UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide a mechanical hydraulic power steering device for engineering vehicles to solve the problem that the performance of the power steering pump cannot be tested in time after the vehicle is started, and the performance of the power steering pump cannot be tested in time when the power steering pump fails. Reminder, a problem with a single function
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0016] see Figure 1-2 -3. The present invention provides a technical solution: a mechanical hydraulic power steering device for engineering vehicles, including a steering wheel 1, a steering column 2, a steering control valve 3, a steering power cylinder 4, a steering gear 5, a steering rocker arm 6, a steering straight Tie rod 7, steering knuckle arm 8, steering tie rod 9, power steering pump 10, test pipe 11, steering oil tank 12, oil return pipe 13, single...
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The invention discloses a mechanical hydraulic power-assisted steering device of an engineering vehicle. The mechanical hydraulic power-assisted steering device comprises a steering power-assisted pump, a testing pipe, a first electromagnetic valve, an audible and visual alarm and a flow sensor, wherein a steering control valve is arranged at the top of a steering gear; a steering rocker arm is connected to one side of the steering gear; the front end of a steering power cylinder is connected to the steering rocker arm; the steering power cylinder is connected with the steering control valve through a pipeline; the steering power-assisted pump is connected with the steering control valve through a pipeline, and the first electromagnetic valve is arranged on the pipeline; a second electromagnetic valve and the flow sensor are arranged on the testing pipe; and a liquid level sensor is embedded in an inner wall of a steering oil tank. According to the mechanical hydraulic power-assisted steering device of the engineering vehicle disclosed by the invention, the testing pipe is arranged, so that after the engineering vehicle is started, the property of the steering power-assisted pump is tested; and the flow sensor is used for detecting the flow, and when the flow is lower than a standard value, audible and visual alarm is performed, so that the situation that in the process of travelling, an accident occurs is avoided.
Description
technical field [0001] The invention relates to the technical field of vehicles, in particular to a mechanical hydraulic power steering device for engineering vehicles. Background technique [0002] At present, the steering system of many automobiles has hydraulic power assist, which makes the steering of the driving vehicle light and flexible, and is more conducive to improving the driving safety of the vehicle. In engineering vehicles, in order to reduce the strength of the driver's steering wheel and improve the steering flexibility of the vehicle, a hydraulic power steering system is often used, and a hydraulic booster is installed on the mechanical steering gear to make it have the full hydraulic steering system. Flexible and light, stable performance, low failure rate, convenient layout and other advantages. However, there are often malfunctions such as steering failure, heavy steering, deviation or drifting when the vehicle is driving. [0003] Since the power steer...
Claims
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IPC IPC(8): B62D5/06B62D5/30
CPCB62D5/062B62D5/30
Inventor 周凯李惠林陈文清何世琴
Owner GUIZHOU UNIV