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Pump control hydraulic steering engine

A hydraulic and steering gear technology, which is applied to steering and other directions with a rudder, can solve problems such as poor stability of the tiller, and achieve the effect of maintaining stability and ensuring stability.

Active Publication Date: 2019-08-20
WUHAN MARINE MACHINERY PLANT
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: one end of the tiller is connected with the plunger through a plunger pin and a roller, and the other end is suspended and the tiller is fixed on the other end of the tiller. The other end bears the double gravity of the tiller and the tiller, so the tiller is less stable when turning

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] In the traditional pump-controlled hydraulic steering gear, the motor generally uses an asynchronous motor, and the hydraulic pump generally uses a variable pump, and the pump speed is adjusted by volumetric speed regulation. This method has the following disadvantages:

[0028] First, when the oil pump is running at low speed, the self-priming ability decreases, causing cavitation, noise, flow pulse, etc., resulting in unstable operation of the steering gear.

[0029] Second, the large inertia of the asynchronous motor affects the rapidity of command response.

[0030] Third, the range of speed regulation is limited, which is limited by the swing angle of the swash plate of the variable pump.

[0031] Fourth, during the proces...

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Abstract

The invention discloses a pump control hydraulic steering engine, and belongs to the field of steering engines. The pump-control hydraulic steering engine comprises an engine base, a rudder pushing mechanism, a control unit, a hydraulic station and a first oil supplementing unit. The rudder pushing mechanism comprises a first plunger oil cylinder, a second plunger oil cylinder, a plunger, a ruddertiller and a rudder stock; two ends of the plunger are located in the first plunger oil cylinder and the second plunger oil cylinder respectively. One end of the rudder tiller is connected with the plunger, and one end of the rudder tiller is located between the first plunger oil cylinder and the second plunger oil cylinder. The rudder stock is arranged at the other end of the rudder tiller; therudder stock is used for driving rudder blades to rotate; the hydraulic station comprises a first motor, a first hydraulic pump and a driving valve group; the first motor is used for driving the firsthydraulic pump to rotate; the first hydraulic pump comprises a first pump body, and a first working oil port and a second working oil port arranged on the first pump body, wherein the first working oil port is communicated with a plunger-free cavity of the first plunger oil cylinder through the driving valve group, and the second working oil port is communicated with a plunger-free cavity of thesecond plunger oil cylinder through the driving valve group.

Description

technical field [0001] The invention relates to the field of steering gear, in particular to a pump-controlled hydraulic steering gear. Background technique [0002] The device that uses hydraulic oil as the working medium to make the ship turn the rudder and maintain the rudder position is called a hydraulic steering gear. The working principle of the hydraulic steering gear is that the pump outputs high-pressure oil driven by the motor to drive the rudder blades to rotate. According to the different steering control methods of steering gear, hydraulic steering gear can be divided into valve-controlled hydraulic steering gear and pump-controlled hydraulic steering gear. The difference between the two is that the valve-controlled hydraulic steering gear controls the direction of the high-pressure oil output by the pump through the reversing valve, and then realizes the reversing operation of the rudder blades; the pump-controlled hydraulic steering gear controls the forward...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H25/30B63H25/24
CPCB63H25/24B63H25/30
Inventor 王志红娄金凯武江勇李艳华赵治国黄波
Owner WUHAN MARINE MACHINERY PLANT
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