CN102530221A - Automatic steering mechanism for outboard engine - Google Patents

Abstract

The invention provides an automatic steering mechanism for an outboard engine. A large gear mounted on the outboard engine and a small gear mounted on a direct-current motor form a gear train to further form a steering transmission mechanism, a control circuit is used for controlling the rotation direction of the outboard engine by controlling forward and reverse steering of the direct-current motor so that the running direction of a vessel is changed, and a high-precision encoder detects the steering angle of the outboard engine and feeds back the detected steering angle to a controller so that closed-loop control is realized. By the aid of a manual clutch device, automatic steering can be conveniently switched to manual operation only by loosening a tensioning screw and separating the large gear from the small gear of the transmission mechanism.

Description

An automatic steering mechanism for an outboard motor

technical field

The patent of the present invention relates to the field of automatic control of ships, in particular to an automatic steering mechanism for outboard motors.

Background technique

Small ships with outboard motors are widely used. Unmanned ships or remote control ships using outboard motors have the characteristics of low cost and wide application range. To operate to achieve various controls such as steering, which has certain restrictions on the operating capacity and cost control of small ships, and has limited the characteristics of small ships such as low operating costs and wide application range. Therefore, it is necessary to realize unmanned or Remote control all must carry out steering control transformation to the outboard motor. At present, the transformation of the automatic steering mechanism of outboard motors has not been reported yet.

Contents of the invention

The purpose of the present invention is to provide an outboard motor automatic steering mechanism of a small boat with simple structure, reliable performance and simple use.

The further object of the present invention is to provide a different outboard motor, which can increase the automatic control steering mechanism without destroying the original control mechanism, so as to realize unmanned or remote control of the ship.

The further object of the present invention is to provide an automatic control steering mechanism that can switch between manual control and automatic control steering according to the actual needs of the operation of the outboard motor.

An automatic steering mechanism for an outboard motor. The automatic steering mechanism includes a transmission device connected to the main shaft of the outboard motor, a DC motor driving the transmission device, and a bearing arranged on the main shaft of the outboard motor. The complete machine of the outboard motor can rotate freely around the bearing , so as to change the sailing direction of the ship. The transmission device of the automatic steering mechanism is composed of a large gear and a small gear. The large gear is set on the main shaft of the outboard motor to control the rotation of the outboard motor around the bearing. Mesh with the large gear, the DC motor drives the small gear to rotate through the drive shaft, thereby driving the large gear to rotate to realize the rotation of the outboard motor. At the same time, a coupling is installed on the drive shaft, and the coupling is used to install a The encoder is a high-precision encoder. The encoder is used to detect the angle of the outboard machine. The control circuit controls the DC motor according to the data detected by the encoder. The control circuit is used to control the DC motor according to the operation instructions. Controlling can realize automatic control and remote control operation.

Preferably, an encoder mounting seat is provided at the shaft end of the DC motor, and the mounting seat is used to fix the encoder on the shaft coupling.

Preferably, in this technical solution, the DC motor is movably connected to the bearing through a fixed bracket in a hinged manner, so that the DC motor and its coupling, pinion and encoder can rotate freely up and down as a whole.

Preferably, a manual clutch device is provided at the lower end of the DC motor, the manual clutch device is a tension screw, and the automatic steering mechanism can be controlled by adjusting the tension screw to realize from manual operation to automatic operation, or from automatic Operational to manual transition. The operation of the tensioning screw is used to separate the large and small gears of the transmission mechanism, so as to realize the above-mentioned control.

Compared with the prior art, the present invention has the advantages of:

This technical solution can increase the automatic control steering mechanism for different outboard motors without destroying the original control mechanism, so as to realize unmanned or remote control of the ship, and can freely switch between automatic control and control by tensioning the screw according to actual needs. It has the advantages of manual control, simple structure, reliable performance and low production cost.

Description of drawings

Fig. 1 is the structural diagram of automatic control mechanism of the present invention;

Fig. 2 is the specific structural diagram of the present invention;

Fig. 3 is the structural diagram when large and small gears of the present invention are separated;

Fig. 4 is a structural diagram of the present invention when the large and small gears are engaged.

Detailed ways

As shown in Figure 1, an automatic steering mechanism for an outboard motor, the automatic steering mechanism includes a transmission device connected to the main shaft 11 of the outboard motor, a DC motor driving the transmission device, and a bearing 12 arranged on the main shaft 11 of the outboard motor The complete machine of the outboard machine can freely rotate around the bearing 12, thereby changing the sailing direction of the ship. The transmission device of the automatic steering mechanism is composed of a large gear and a small gear. The large gear 14 is arranged on the main shaft 12 of the outboard machine. It is used to control the rotation of the outboard machine around the bearing 12, the pinion gear 4 and the big gear 14 are meshed, and the DC motor 6 drives the pinion gear 4 to rotate through the drive shaft, thereby driving the big gear 14 to rotate to realize the rotation of the outboard machine. At the same time, a shaft coupling 3 is arranged on the drive shaft, and the shaft coupling 3 is used to install an encoder 2. The encoder 2 is a high-precision encoder, and the encoder 2 is used to detect that the complete machine of the outboard machine has turned. angle, the control circuit 8 controls the DC motor 6 according to the data detected by the encoder 2, and the control circuit 8 installed on the stern board 10 is used to control the DC motor 6 according to the operation instruction, which can realize automatic control and remote control operation .

Preferably, an encoder mount 5 is provided at the shaft end of the DC motor, and the mount is used to fix the encoder 2 on the shaft coupling 3 .

Preferably, in this technical solution, the DC motor is flexibly connected to the bearing 12 through a fixed bracket 13, and the connection mode is hinged, so that the DC motor 6 and the coupling 3, pinion 4 and encoder 2 connected thereto It can rotate freely up and down as a whole.

Preferably, a manual clutch device is provided at the lower end of the DC motor, and the manual clutch device is a tension screw 7, so that the automatic steering mechanism can be controlled by adjusting the tension screw to realize from manual operation to automatic operation, or from The transition from automatic operation to manual operation. The operation of the tensioning screw is used to separate the large and small gears of the transmission mechanism, and the distance between the DC motor 6 and the main shaft 11 is changed by telescopic and other means, so that the DC motor 6 rotates up and down around the rotating shaft 13, driving The pinion gear 4 and the bull gear 14 are engaged or disengaged, thereby realizing the above-mentioned control.

As shown in FIG. 2 , the DC motor 6 is connected with the outboard motor through a fixing bracket 13 . A pinion 4 is installed on the shaft end of the DC motor 6, and an encoder 2 is connected through a shaft coupling 3, and the encoder 2 is fixed on the mounting base 5.

As shown in Figure 3, the manual clutch structure consists of a DC motor 6 and its connecting parts as a whole, which can rotate around the shaft sleeve and the rotating shaft 13, and the gears are engaged or separated by adjusting the tension screw 7.

As shown in Figure 4, tighten the tension screw 7 when performing automatic steering control, so that the small gear 4 on the upper end of the motor 6 meshes with the large gear 14, and the control circuit 8 drives the DC motor 6 to realize automatic steering. When needing to carry out manual steering, loosen and tighten the screw rod 7 to separate the pinion 4 and the bull gear 14.

Claims (4)

1. an outboard motor self-steering gear is characterized in that, comprises with the DC machine of outboard motor main shaft bonded assembly driving device, drive transmission and is arranged at the bearing on the outboard motor main shaft, and the outboard motor complete machine rotates around bearing; Said driving device comprise the big gear wheel that is arranged on the outboard motor main shaft, with the big gear wheel miniature gears of interlock mutually, said DC machine is through a drive shaft miniature gears; Said axle drive shaft is provided with a coupler, and said coupler connects a coder, is used to detect steering angle; Said coder is connected with a control circuit respectively with DC machine, and control circuit drives DC machine and realizes automatic steering.

2. self-steering gear according to claim 1 is characterized in that, said DC machine axle head is provided with a coder mount pad, and said coder is fixed on the said mount pad.

3. self-steering gear according to claim 1 is characterized in that, is connected through a mounting bracket between said DC machine and the bearing, and said mounting bracket is fixed on the said bearing, and said mounting bracket and said DC machine are hinged.

4. self-steering gear according to claim 3 is characterized in that, said DC machine lower end is provided with a manual arrangement of clutch, and said manual clutch device is a tensioning screw.

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