JPH03229082A - Electrohydraulic torque generator - Google Patents

Abstract

PURPOSE:To dispense with any inboard hydraulic pipeline as well as to reduce the noises by assembling each individual electric motor, hydraulic pump and hydraulic equipment in one valve as a set, and mounting a small hydraulic source for valve driving use on individual valves. CONSTITUTION:This electrohydraulic torque generator is set up in a two-storied arrangement and at the first floor, these are provided with an electric motor 4, a hydraulic pump 5 a relief valve 6, a pressure tank and a rocking motor 2, while a poppet type solenoid valve 3 and accessories are set up at the second floor. As for the rocking motor 2, a rack-and-pinion type rocking motor excellent in mechanical efficiency is adopted, and a piston pump is set up in the hydraulic pump 5. In addition, a pressure cylinder 9 is attached to a pressure tank 7, and working fluid in the tank is always pressurized as far as about 0.5kg/cm<2>. Since a hydraulic system is packaged at each individual valve like that, inboard hydraulic piping work becomes disused and, what is more, power for a hydraulic source will get off with smallness, so that such a system as low in noise is securable.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a remote control system for valves such as ballast lines, bilge lines, fuel lines and fire lines of ships.

[Conventional technology]

A basic circuit diagram of a conventional remote control system for ship valves is shown in FIG.

A ball valve, a king valve, a butterfly valve, etc. is used as the valve (8), and a hydraulic swing motor is used as the actuator for driving the valve (81).
The assembly diagram of the swing motor (82) is shown in Figure 7. Conventionally, this valve and swing motor set were placed in various locations on the ship (usually 50 to 300 locations), and a hydraulic pump unit was used as the power source. 84) and solenoid valve stand (83)Y
The method of placing it in one place has been successfully adopted.

[Problem to be solved by the invention]

In a conventional remote control system for a valve on a ship, a swing motor (82
) and the solenoid valve stand (83), which requires a large amount of cost and time.

In addition, the hydraulic pump unit (84) had the problem that it was necessary to supply the power of 50 to 10 valves (8I), making the device large, taking up space inside the ship, and increasing noise.

The present invention is a remote control system for ship valves that eliminates the need for onboard hydraulic piping.

And get a low-noise electro-hydraulic torque generator χ? The purpose is

[Means to solve the problem]

In order to achieve the above object, the electro-hydraulic torque generator of the present invention adopts the basic hydraulic circuit Y shown in FIG.
) and the hydraulic pump (5) and the reinstalled swing motor (2) Y valve (]).

In addition, for the solenoid valve for controlling the opening/closing direction of the valve, we have replaced the spool type, which tends to leak, with a poppet type solenoid valve (3), which improves the revenue performance of the hydraulic pump (5) and improves the efficiency of the oil tank. A pressurized tank (7) was used to install the device in all directions.

[Effect]

In the electro-hydraulic torque generating device* configured as above, one electric motor (4) is provided for each of the ] valves (1),
Since the hydraulic pump (5) and hydraulic machine 6 are installed as a set, there is no need for onboard hydraulic piping work.

Further, since a small hydraulic power source for driving one valve () is mounted on each valve, noise is extremely reduced. Moreover, the poppet type solenoid valve (3) and the pressurized tank (
By increasing system efficiency by adopting 7), the power χ of the hydraulic power source can be kept small.

〔Example〕

An example will be explained with reference to the drawings.

Fig. 1 shows a basic hydraulic circuit diagram. The front view is shown in Figure 2.It is a two-story building with an electric motor (4) on the first floor.

Hydraulic pump (5), relief valve (6), pressurized tank (7)
) and swing motor (2), and a poppet type solenoid valve (3) and accessories will be installed on the second floor.

FIG. 3 shows a sectional view χ taken along the line AA of the second section. Swing motor (2
) Adopts a rack-and-binion type swing motor with the highest mechanical efficiency.

A piston pump is installed as the hydraulic pump (5).

Figure 4 shows B-BI in Figure 3! An IT diagram is shown. FIG. 5 shows a view taken along the line C--C in FIG. 2. Figure 6 shows D-D in Figure 3.
IFi plane view Y is shown. In the pressurized tank (7).

A pressurizing cylinder (9) is attached, and the hydraulic oil in the tank is constantly pressurized to approximately 0.5 kf/-.

Torque 150kfm class, length 26α customization 26m height 29
The torque generation device has an amount of about 55 kf, and can be assembled in less than half the weight and space compared to conventional torque generators.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

Because the hydraulic system is backed up for each valve, it takes an enormous amount of man-hours compared to before. This eliminates the need for onboard hydraulic piping work. Furthermore, there is no need to install large hydraulic devices such as a hydraulic pump unit (84J) and a solenoid valve stand (83), and there is no need to worry about securing space inside the ship.

And a hydraulic system for each valve? Because of this structure, the power of the hydraulic power source can be small, making it possible to obtain a system with extremely low noise.

In addition, since the pressurized tank (7) is used, no matter which direction this device is installed, the hydraulic pump (5) will be charged with hydraulic oil and the system will operate normally. It is possible to install it on the

[Brief explanation of drawings]

FIG. 1 is a basic hydraulic circuit diagram according to the present invention, FIG. 2 is a front view, and FIG. 3 is a sectional view taken along line AA in FIG. 2. Figure 4 is a sectional view taken along line B-B in Figure 3, and Figure 5 is a cross-sectional view taken along line C-- in Figure 2.
6 is a sectional view taken along line DD in FIG. 3, FIG. 7 is an assembly diagram of a conventional valve and swing motor, and FIG. 8 is a basic circuit diagram of a conventional system. Engineering... Valve 2... Poppet type solenoid valve 5...
・・・Hydraulic pump 7・・・・・・Pressure tank 9・・・・・・Pressure cylinder 81・・・・・・・・・Valve 2・・・・・・・・・...Rolling motor 4...Electric motor 6...Relief valve 8...Terminal box 82... Swing motor 83... Solenoid valve stand 84...
・・・Hydraulic bomb unit

Claims (1)

[Claims] 1. Electric hydraulic torque generator equipped with a swing motor (2), poppet type solenoid valve (3), electric motor (4), hydraulic pump (5), relief valve (6) and processing tank (7)