JPH0447607Y2 - - Google Patents

Description

[Detailed description of the invention] a. Industrial application field This invention is a navigation vehicle that navigates on or under water,
In particular, the present invention relates to a tracking transmitter that transmits a tracking signal corresponding to the rudder angle of a ship.

b. Conventional technology A navigation vehicle that has conventionally navigated on water or underwater;
In particular, when steering a ship, whether manual or automatic steering, the current rudder angle is displayed in the wheelhouse as an electrical follow-up signal, and the automatic steering control is is often required.

FIG. 5 is a plan view of a conventional follow-up transmitter, and FIG. 6 is a cross-sectional view of the follow-up transmitter. In the figure, there is a steering angle follow-up transmitter sensor 3 housed in a case 2 of a follow-up transmitter 1. The follow-up transmitter 3 includes, for example, a potentiometer, a synchro electric machine, or an encoder.The case 2 of the follow-up transmitter 1 containing the built-in potentiometer is fixed to the hull side, and the rotation shaft 4 interlocks with the follow-up transmitter 3. An arm 5 connected to a rudder (not shown) of the ship is connected to the arm 5, and an electric signal corresponding to the rudder angle position of the rudder generated by the follow-up transmitter 3 is outputted from the follow-up transmitter 1 as a follow-up signal. Ta. For example, in order to change the following signal output from the following transmitter 1 according to the rudder angle position of the rudder, for example, the median value of the entire output range of the signal from the following transmitter 3 is set to The same transmitter sensor 3
It is necessary to accurately adjust the positioning of the Note 6
is a gear mechanism, which is interposed between the rotating shaft 4 and the shaft of the follow-up transmission sensor 3. Further, 7 is an electric wire cable for electric signals.

c Problems to be solved by the invention However, such conventional tracking transmitter 1
In places where the installation location and adjustment work space are narrow, such as on small ships, it is difficult to adjust the position of the tracking transmitter 3 so that the tracking signal from the tracking transmitter 1 is correctly output in accordance with the rudder angle position. There was a problem.

In particular, in the conventional tracking transmitter as shown in FIGS. 5 and 6, loosen the screws on the case 2, remove the cover 8, loosen the screws 10 that fasten the mounting plate 9 of the tracking transmitter 3, Adjust the mounting position of the follow-up transmission sensor 3 by turning it by the required angle. However, due to the structure of the transmitter 1, this adjustment work must be done inside the case 2, and because the work is done in a deep part of the small case, adjusting the position of the transmitter sensor 3 is even more difficult. There was a problem.

d. Means for solving the problems The present invention was devised in view of the above-mentioned problems, and its purpose is to solve the above-mentioned problems and to maintain the mechanical connection between the rotation shaft of the tracking transmitter and the rudder. Therefore, it is an object of the present invention to provide a follow-up transmitter having a structure that allows accurate positioning to be easily performed so that the follow-up signal from the transmitter follows the rudder angle position of the rudder gear.

The configuration of the present invention to achieve the above object includes a tracking transmitter that transmits a tracking signal corresponding to the rudder angle of the navigation object from a built-in transmitter sensor, which includes a lower case attached to the steering object, and a rotating part. The driving shaft is connected to the rudder of the steering body via a link mechanism, and in addition to the upper case to which the transmitting sensor is attached, the transmitting sensor is attached to the attachment portion of the upper case to the lower case. an adjustment mechanism consisting of a plurality of elongated holes drilled along an arc centered on the rotation axis, and each mounting bolt that fixes the upper case to the lower case through the elongated holes;
The adjustment mechanism is characterized in that the relative angle of the transmission sensor to the steering body can be adjusted.

e. Embodiments Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.

Fig. 1 is a plan view of a tracking transmitter showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line B-B in Fig. 1. A cross-sectional view is shown. In the figure, the follow-up transmitter 20 consists of an upper case 21 and a lower case 22, and the lower case 22 has three mounting legs 23 and mounting holes 2 for attaching the follow-up transmitter 20 to the hull.
4, and a waterproof plug 2 for introducing the cable.
An electric wire cable 26 is introduced into the lower case 22 via 5. The upper case 21 has a column 27
A follow-up transmitting sensor 29 (for example, a potentiometer, a synchro electric machine, an encoder, etc.) is attached to the mounting plate 28 via. A rotation shaft 30 of this follow-up transmission sensor 29 is connected to a rotation main shaft 32 via a joint 31. The rotation main shaft 32 has two ball bearings 33 mounted on the upper case 21.
A packing 34 is disposed on the upper part of the ball bearing 33, and a flat washer 35 is disposed above the packing 34, and an arm 36 is fixed to the rotating main shaft 32 protruding from the upper part by a double nut 37. As shown in FIG. 2, one end of the arm 36 is bent along the inclined surface of the upper case 21, and the tip is formed at an acute angle or an obtuse angle to form a pointer 38. The upper case 21 faces the pointer 38 of this arm 36.
A scale plate 39 with a steering angle scale marked thereon is disposed along the inclined surface. An O-ring 40 is inserted into the joint surface of the upper case 21 and the lower case, and a plurality of elongated holes 41 (four in the figure) are bored along an arc in the upper case 21, and the elongated holes 41 are inserted into the upper case 21. Mounting bolt 42
The upper case 21 is fixed to the lower case 22 by. This elongated hole 41 is an adjustment mechanism that allows angle adjustment of the position of the tracking transmitter sensor 2 attached to the upper case 21 relative to the lower case 22 (hull side), and The length depends on the required adjustment range.

Next, the action will be explained.

In the case of manual steering, display of the steering angle etc. can be performed by a commonly used method.

In the case of automatic steering, a steering command signal passes through a calculation section, a servo amplifier, and a relay section to operate the power unit of the automatic steering system or the steering section of the steering gear, and its movement is detected by a tracking transmitter, which generates a tracking signal. A servo system that feeds back the signal to a servo amplifier can be constructed as a servo amplifier.

The follow-up transmitter 20 is connected to a rudder shaft 50 of a steering unit of a steering machine driven by a hydraulic cylinder 48 and a hydraulic cylinder rod 49, as shown in FIG. The connecting rod 51 constitutes a link mechanism connected to the arm 36 of the follow-up transmitter 20, and the connected portion of the link mechanism has a rotatable structure. A rudder stock is fixed to a fixed point 52 of the rudder handle 50, and a rudder plate (not shown) is disposed below the rudder stock. When the rudder handle 50 or the rudder plate is at the center position of the rudder, when the rudder is fully steered, and when the rudder is fully steered, the following transmission sensor 29 in the following transmitter 20 is activated by the connecting rod 51 of the link mechanism and the arm 36, respectively. The rotation shaft sides 32, 30 are rotated and a follow-up signal is transmitted.

In the case of the rudder center position (the position shown in FIG. 4), the line 53 connecting the fixed point 52, which is the center of rotation of the rudder handle 50, and the center of the rotation main shaft 32 of the tracking transmitter 20, the connecting rod 51, and the rudder handle. The follow-up transmitter 20 is mounted so that the quadrilateral formed by the center line 54 of the transmitter 50 and the arm 36 of the follow-up transmitter 20 forms a parallelogram. However, at the center position of the rudder, the follow-up signal from the follow-up transmission sensor 29 in the follow-up transmitter 20 is the median value of the entire output range, and the follow-up transmitter 20 is rarely installed or equipped. For this reason, after installation, it is attached to the upper case 21 using a plurality of elongated holes 41, which are adjustment mechanisms provided in the upper ace 21, so that a follow-up signal corresponding to the steering angle position is output. In order to adjust the position of the follow-up transmission sensor 29, the angle of the upper case 21 relative to the lower case 22 (on the hull side) is slightly adjusted by hand, and the position adjustment can be performed extremely easily. When the positioning adjustment is completed, the mounting bolts 42 are tightened to fix the upper case 21 to the lower case 22.

Furthermore, by marking appropriate scales on the scale plate 39 provided on the inclined surface of the upper case 21, it is possible to roughly position the arm 36 of the tracking transmitter 20 together with the pointer 38 in advance. Accurate positioning adjustment becomes even easier.

Furthermore, due to the structure of the follow-up transmitter, most of the main parts are assembled in the upper case 21, so there is an advantage that maintenance is easy.

It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that means of other modes that perform the same function may be used, and various changes and additions may be made within the scope of the above-mentioned configuration. It is possible.

f Effect As is clear from the above explanation, according to the present invention, in a tracking transmitter that transmits a tracking signal corresponding to the rudder angle of a navigation object from a built-in transmitting sensor, an upper case to which the transmitting sensor is attached, The fixed part with the lower case attached to the navigation object is equipped with an adjustment mechanism that allows the position of the tracking transmitter side of the tracking transmitter to be adjusted relatively, so the tracking transmitter can be rotated without opening the upper case. The tracking signal from the transmitter allows accurate positioning to follow the rudder angle position of the rudder while the shaft (rotating main shaft) and rudder are mechanically connected, making it easy and quick. There is an effect that can be done.

In addition, according to the present invention, since the upper case of the rudder angle tracking transmitter does not need to be opened, moisture and dirt do not get inside.
Not only is there no risk of damaging internal parts during adjustment work, but workability is extremely good even in environments where the installation location and adjustment work space are narrow, such as on small ships.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a tracking transmitter showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line B-B in Fig. 1. 4 is an installation diagram showing an example of installing a tracking transmitter in a steering gear, FIG. 5 is a plan view of a conventional tracking transmitter, and FIG. 6 is a sectional view of the same transmitter shown in FIG. 5. show. 20...Following transmitter, 21...Upper case, 2
2...Lower case, 29...Following transmission sensor, 3
2...Rotating main shaft, 36...Arm, 41...Elongated hole, 42...Mounting bolt, 48...Hydraulic cylinder, 49...Hydraulic cylinder rod, 50...Rudder handle, 51...Connecting rod, 52...Fixed point.

Claims (1)

[Scope of Claim for Utility Model Registration] In a tracking transmitter that transmits a tracking signal corresponding to the rudder angle of a navigation object from a built-in transmitting sensor, a lower case attached to the navigation object and a rotating shaft connect a link mechanism. an upper case to which the transmitting sensor is attached, which is connected to a rudder of the navigational object through a rudder, and an attachment portion of the upper case to the lower case;
an adjustment mechanism comprising a plurality of elongated holes drilled along an arc centered on the rotation axis of the transmission sensor, and each mounting bolt that fixes the upper case to the lower case through the elongated holes; A tracking transmitter, characterized in that the adjustment mechanism allows the relative angle of the transmitting sensor to the navigation object to be adjusted.