JPH0646392U - Ultrasonic wave transceiver - Google Patents

Abstract

(57) [Summary] [Object] To provide an ultrasonic wave transmitting / receiving device in which the drive does not become heavy even if the drive shaft bends to some extent and the cost can be reduced. [Structure] A storage dome 20 accommodating a transducer 24 is attached to the lower ends of the upper and lower pipes 15, and an ultrasonic transmitting / receiving device capable of controlling the depression and depression angle of the transducer by a drive shaft 5 moving up and down in the upper and lower pipes. Drive device 3 for rotating
4,6,17,18,19,26 are provided. This rotation drive device has a holding arm mechanism 17, 1 for holding the wave transmitter / receiver rotatably around the axis of the drive shaft in a storage dome.
8, 19 and 26, and electric drive mechanisms 3, 4 and 6 that can be moved up and down as the drive shaft moves up and down and rotate the drive shaft appropriately.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an ultrasonic wave transmitter / receiver capable of mechanically changing a depression angle mechanically.

[0002]

[Prior art]

 FIG. 2 is a sectional view showing a conventional example of the above-mentioned ultrasonic wave transmitter / receiver. The upper and lower pipes 45 connect the gear box 31 inside the boat and the storage dome 50 outside the boat. The upper and lower pipes 45 are sealed at their outer peripheries so that seawater and the like do not enter the interior of the ship, and are raised or lowered by a vertical drive mechanism (not shown). In the gear box 31, a bottom plate 32 is fixed to the upper ends of the upper and lower pipes 45, and a swing drive shaft 35 housed in the upper and lower pipes 45 rotatably penetrates the bottom plate 32. Further, the depression drive shaft 30 is slidably housed in the swivel drive shaft 35. A gear 33 is fixed to an upper part of the swing drive shaft 35, and is driven by a swing motor 36 via a gear 34 to rotate the swing drive shaft 35 within a desired angle or to rotate the entire circumference.

A flange 46 is fixed to the lower ends of the upper and lower pipes 45 so as to seal the upper surface of the storage dome 50 containing the castor oil 57. The swing drive shaft 35 housed in the upper and lower pipes 45 rotatably penetrates the flange 46 and extends into the storage dome 50. A holding arm 48 is fixed to the lower end of the swivel drive shaft 35, and the holding arm 48 faces the front surface and the rear surface (viewed in the vertical direction of the drawing) of the transducer 54 so as to sandwich the transducer 54, and The wave transmitter / receiver 54 is rotatably held by the attached connecting shaft 56. A stopper 43 is fixed to the upper portion of the depression angle drive shaft 30 and is rotatably supported by the depression angle plate 37. A female screw 38 that is screwed into the feed screw 39 is fixed to the depression plate 37. A gear 40 is fixed to the feed screw 39 at a position below the depression plate 37. The feed screw 39 is rotatably provided on the bottom plate 32. The gear 40 is driven by the depression angle motor 42 via the gear 41, and by rotating the feed screw 9, the depression angle plate 7 is moved up and down as indicated by an arrow V, which in turn raises and lowers the depression angle drive shaft 30.

A depression arm 51 is fixed to the lower end of the depression drive shaft 34. The depression arm 51 extends laterally on the front surface and the rear surface (only the front surface is shown in FIG. 2) so as to rotatably sandwich the transducer 54. One end of a depression angle lever 52 is rotatably attached to the end of the depression angle arm 51 by a connecting shaft 53. The other end of the depression angle lever 52 is rotatably attached to the wave transmitter / receiver 54 by a connecting shaft 55. The transducer on the wave transmission / reception surface S of the wave transmitter / receiver 54 is connected to an external circuit by a line 44 passing through the depression angle drive shaft 5. Therefore, the depression angle of the wave transmitter / receiver 54 is controlled by the vertical movement of the depression angle drive shaft 34, and the turning is controlled by the rotation of the turning drive shaft 35.

[0005]

[Problems to be solved by the device]

 In the above-mentioned conventional ultrasonic transmitter / receiver, since the control of the depression angle and the turning of the transmitter / receiver is performed by different drive shafts, the point that the drive becomes heavy due to slight bending due to running load and obstacles Then, there are many watertight parts of the drive shaft, which raises the cost.

In view of the above problems, it is an object of the present invention to provide an ultrasonic wave transmitting / receiving device in which the drive does not become heavy even if the drive shaft bends to some extent and the cost can be reduced.

[0007]

[Means for Solving the Problems]

 The ultrasonic transmission / reception device of the present invention is an ultrasonic transmission / reception device in which a storage dome for accommodating the transducer is attached to the lower ends of the upper and lower pipes, and the depression angle of the transducer can be controlled by the drive shaft moving up and down in the upper and lower pipes. Therefore, a rotary drive device for rotating the drive shaft is provided. Preferably, the rotation drive device is a holding arm mechanism that holds the transmitter / receiver rotatably around the axis of the drive shaft in the storage dome, and is vertically movable along with the vertical movement of the drive shaft. It is composed of an electric drive mechanism that appropriately rotates the drive shaft.

[0008]

When the drive shaft is raised or lowered, the depression angle of the transducer is changed, and when the drive shaft is driven by the rotary drive device, the transducer is rotated.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the ultrasonic transmitter / receiver of the present invention.

The present embodiment includes a gear box 1 inside a ship, a storage dome 20 outside the ship, and an upper and lower pipes 15 connecting them. The outer circumference of the upper and lower pipes 15 is sealed so that seawater or the like does not enter the ship, and is raised or lowered by a vertical drive mechanism (not shown).

In the gear box 1, the bottom plate 2 is fixed to the upper ends of the upper and lower pipes 15, and the swing drive shaft 5 housed in the upper and lower pipes 15 rotatably penetrates the bottom plate 2.

A gear 3 is fixed to the upper part of the turning depression angle drive shaft 5 and supported by a depression angle plate 7. The gear 3 is driven by the turning motor 6 via the gear 4, and rotates the turning depression angle drive shaft 5 as indicated by an arrow R. A female screw 8 that is screwed into the feed screw 9 is fixed to the depression plate 7.

A gear 10 is fixed to the feed screw 9 at a position below the depression plate 7. The feed screw 9 is rotatably provided on the bottom plate 2. The gear 10 is driven by the depression angle motor 12 via the gear 11, and by rotating the feed screw 9, the depression angle plate 7 is moved up and down as shown by an arrow V, which in turn causes the turning depression angle drive shaft 5 to be moved up and down.

A flange 16 is fixed to the lower ends of the upper and lower pipes 15 so as to seal the upper surface of the storage dome 20 containing the castor oil 27. A pulley support tool 17 is fixed to the flange 16, and the pulley support fitting 17 rotatably supports the grooved pulley 19 at the center. The turning depression angle drive shaft 5 housed in the upper and lower pipes 15 rotatably penetrates the flange 16 and the grooved pulley 19 and extends into the storage dome 20.

A depression angle arm 21 is fixed to the lower end of the turning depression angle drive shaft 5. The depression arm 21 extends laterally on the front surface and the rear surface (only the front surface is shown in FIG. 1) so as to rotatably sandwich the transducer 24. One end of the depression angle lever 22 is rotatably attached to the end of the depression angle arm 21 by a connecting shaft 23. The other end of the depression lever 22 is rotatably attached to the wave transmitter / receiver 24 by a connecting shaft 25. The upper end of the holding arm 18 is fixed to the bottom surface of the grooved pulley 19, and the front and rear surfaces of the wave transmitter / receiver 24 extend downward so as to sandwich the wave transmitter / receiver 24 and the depression arm 21.

The wave transmitter / receiver 24 is rotatably held by a connecting shaft 26 at the lower end of the holding arm 18. The transducer of the wave transmission / reception surface S of the wave transmitter / receiver 24 is connected to an external circuit by a line 14 passing through the turning depression angle drive shaft 5.

Next, the operation of the embodiment shown in FIG. 1 will be described. The vertical driving mechanism lowers the vertical pipe 15. In the state shown in FIG. 1, the wave transmission / reception surface S of the wave transmitter / receiver 24 is oriented in the horizontal direction. When the depression motor 12 is driven to raise the depression plate 7, the depression arm 21 is raised. The wave transmitter / receiver 24 rotates according to the amount of elevation of the depression angle arm 21, and the wave transmission / reception surface S faces an appropriate depression angle direction. When the swivel motor 6 is driven when the desired depression angle is reached, the swivel depression angle drive shaft 5 swivels the transducer 24 within a desired angle or makes a full turn according to the instruction.

[0018]

[Effect of device]

 As described above, according to the present invention, the drive shaft for controlling the depression angle of the wave transmitter / receiver is held only at the lower end portion, and the drive shaft is rotated by the rotary drive device, so that the drive shaft is slightly bent. Even if bending or bending occurs, there is an effect that the driving of the drive shaft is not hindered. Further, unlike the conventional one, since a long turning drive shaft is not used, there is an effect that the member may be inexpensive.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of an ultrasonic wave receiving device of the present invention.

FIG. 2 is a sectional view showing a conventional example.

[Explanation of symbols]

 1 Gear Box 2 Bottom Plate 3, 4, 10, 11 Gear 5 Swing Depression Angle Drive Shaft 6 Swing Motor 7 Depression Angle Plate 8 Female Screw 9 Feed Screw 12 Depression Motor 15 Vertical Pipe 16 Flange 17 Pulley Support Metal Fitting 18 Holding Arm 19 Groove Pulley 20 Storage dome 21 Depression arm 22 Depression lever 23, 25, 26 Connecting shaft 24 Transducer 27 Castor oil

Claims (2)

[Scope of utility model registration request] 1. An ultrasonic wave transmitting / receiving device, wherein a storage dome for accommodating a wave transmitter / receiver is attached to the lower ends of the upper and lower pipes, and the depression / depression angle of the wave transmitter / receiver can be controlled by a drive shaft moving up and down in the upper and lower pipes. An ultrasonic wave transmitting / receiving device, comprising a rotation drive device for rotating. 2. The rotation drive device includes a holding arm mechanism that holds the wave transmitter / receiver rotatably around the axis of the drive shaft in a storage dome, and is vertically movable as the drive shaft moves up and down. An electric drive mechanism that appropriately rotates the drive shaft.
The ultrasonic transmission / reception device described.