JPH0643199B2 - Tilt oscillating device for ship model experiment - Google Patents

Description

The present invention relates to an experimental apparatus for shipboard equipment such as a crane mounted on board a ship, and particularly to a model of the shipboard equipment, which simulates the tilting and swinging of the hull. The present invention relates to a tilting oscillating device for a shipboard model experiment, which enables an experiment to be carried out at

[Conventional technology]

Conventionally, experiments have been conducted on a model of a ship crane that handles dry cargo using an automatic cargo handling control device, but experiments on a ship model including changes in the attitude of the hull have not yet been carried out.

[Problems to be solved by the invention]

However, when an on-board crane actually operates, the hull itself is tilted due to loading conditions and the hull is swayed due to disturbances such as weather and sea conditions. It is necessary to do.

The present invention is intended to solve the problems related to the experiment of such a ship model, and the experiment can be performed in a state in which the inclination and the shaking of the hull are simulated to a required degree. An object is to provide an experimental tilting rocking device.

[Means for solving problems]

In order to achieve the above-mentioned object, an onboard model experiment tilting oscillating device of the present invention comprises an inner frame on which a ship model can be mounted, and an outer frame which oscillatably supports the inner frame via a pair of support shafts. , A support base that tiltably supports the outer frame via a pair of support shafts, and the rotation axis for tilting the outer frame and the rotation axis for swinging the inner frame are perpendicular to each other. An inclination setting and holding mechanism that is set so as to hold the outer frame with respect to the support base at a required set inclination angle, and a drive mechanism that can swing the inner frame with respect to the outer frame are provided. , A variable speed motor and a replaceable eccentric cam that is rotationally driven by the motor to swing the inner frame in order to adjust the period and amplitude of the swing of the inner frame with respect to the outer frame. It is characterized by being configured with.

[Work]

In the above-described tilting oscillating device for on-board model experiments of the present invention, the tilting angle of the outer frame with respect to the support is held at a required setting angle by the tilting setting and holding mechanism, whereby the state of vertical or lateral tilting of the hull is maintained. It appears in a simulated manner.

Further, the swinging of the inner frame for simulating the wobbling of the hull is performed with respect to the outer frame by the variable speed motor and the eccentric cam in the drive mechanism, and the swing is performed by the speed control of the variable speed motor. And the amplitude of the swing is adjusted by selecting the eccentric cam.

〔Example〕

An onboard model experiment tilting swaying apparatus as an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view thereof, FIG. 2 is a side view thereof, and FIG. 3 is a front view thereof. The drawing is a partial view schematically showing the driving mechanism.

As shown in FIGS. 1 to 3, an inner frame 2 on which a ship model such as a ship crane can be mounted on an outer frame 1 is a pair of support shafts 1.
The outer frame 1 is supported so as to be swingable through 0 and 10, and the outer frame 1 is supported by a support base 11 so as to be tiltable through a pair of support shafts 12 and 12. The rotation axis for tilting the outer frame 1 by the pair of support shafts 12, 12 and the rotation axis for swinging the inner frame 2 by the pair of support shafts 10, 10 are as shown in FIG. It is set to form a right angle to each other.

Further, a tilt setting holding mechanism A capable of holding the outer frame 1 with respect to the support base 11 at a required set tilt angle is provided.
Is an arm 15 pivotally attached to one side of the outer frame 1 by a pin 14.
And a male screw shaft 3a screwed into the female screw hole of the arm 15 and rotated by the handle 3.
Bearing member 3b that rotatably holds the lower end of the male screw shaft 3a.
Are pivotally supported on the support base 11 by pins 16.

Therefore, by rotating the handle 3, the arm 15 can be rotated.
As the ascends or descends along the male screw shaft 3a, the outer frame 1 is tilted about the support shaft 12 to a required set tilt angle, and is held at the set tilt angle.

The pointer 17 attached to the arm 15 points to the inclination angle scale on the scale column 18, and the inclination angle of the outer frame 1 can be read by this.

Further, as shown in FIGS. 1 to 4, a drive mechanism B capable of swinging the inner frame 2 with respect to the outer frame 1 is provided, and the drive mechanism B is a variable speed motor supported by the outer frame 1. 4 and an eccentric cam 5 that is driven to rotate by the motor 4 to swing the inner frame 2.

The eccentric cam 5 can be replaced with one having a required shape.

The movement of the eccentric cam 5 is transmitted to the cam follower 6, the cam follower 6 is pivotally attached to the tip, and the base end is pivotally attached to the support member 1a integral with the outer frame 1 with a link 7a, A link 7b connecting the link 7a and the inner frame 2
The inner frame 2 is swung by the driving force from the cam follower 6 via the link mechanism 7 including.

A return spring 8 is mounted between the support member 1a integral with the outer frame 1 and the inner frame 2 so as to return the inner frame 2 to the neutral position with respect to the outer frame 1. The spring force that acts is working.

With the above-described configuration, in this inclining rocking device for onboard model experiments, the inclination angle of the outer frame 1 with respect to the support base 11 is ensured at a required setting angle by the inclination setting and holding mechanism A, whereby the vertical inclination or the horizontal inclination of the hull is obtained. The state of inclination is simulated.

Further, the swing of the inner frame 2 for simulating the motion of the hull is caused by the variable speed motor 4 and the eccentric cam 5 in the drive mechanism B.
And the variable speed motor 4
The rocking cycle is adjusted by the speed control, and the rocking amplitude is adjusted by selecting the eccentric cam 5.

In the above-described embodiment, the movement of the eccentric cam 5 is transmitted to the inner frame 2 via the cam follower 6 and the link mechanism 7, but the cam follower 6 and the link mechanism 7 are omitted. The inner frame 2 may be directly driven by the eccentric cam 5.

An onboard model such as a deck crane is mounted on the inner frame 2, and an experiment is conducted using an automatic cargo handling control device.

In this way, this inclining rocking device for onboard model experiments simulates the inclining and wobbling of the hull to the required extent, so that the onboard model of the onboard model can be operated under the conditions suitable for the actual situation. The effect is that experiments can be conducted.

〔The invention's effect〕

As described above, the following effects and advantages can be obtained by the on-board model experiment tilting oscillating device of the present invention.

(1) For the inner frame on which the onboard model is mounted, swing to simulate the motion of the hull is performed with respect to the outer frame by the variable speed motor and the eccentric cam in the drive mechanism. The swing cycle is adjusted by controlling the speed of the motor, and the swing amplitude is adjusted by selecting the eccentric cam.

(2) Since the inclination angle of the outer frame supporting the inner frame is held at the required setting angle by the inclination setting and holding mechanism, the state of vertical or horizontal inclination of the hull can be simulated.

(3) Due to the above items (1) and (2), the hull's inclination and sway will be simulated to the required extent, so it is possible to perform experiments on the onboard model under conditions that match actual conditions. There is an effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 4 show an inclining rocking device for shipboard model experiment as one embodiment of the present invention, FIG. 1 is a plan view thereof, and FIG. 2 is a side view thereof. FIG. 3 is a front view thereof, and FIG. 4 is a schematic view of its drive mechanism. 1 ... Outer frame, 1a ... Support member, 2 ... Inner frame, 3 ... Handle, 3a ... Male screw shaft, 3b ... Bearing member, 4 ...
Variable speed motor, 5 ... Eccentric cam, 6 ... Cam follower, 7 ... Link mechanism, 7a, 7b ... Link, 8 ...
Return spring, 9 ... pin, 10 ... support shaft, 11 ... support base, 12 ... support shaft, 14 ... pin, 15 ... arm, 1
6 ... pin, 17 ... pointer, 18 ... scale column, A ... inclination setting holding mechanism, B ... drive mechanism.

 ─────────────────────────────────────────────────── ─── Continued Front Page (71) Applicant 999999999 Mitsui Engineering & Shipbuilding Co., Ltd. 5-6-4 Tsukiji, Chuo-ku, Tokyo (72) Inventor Toru Minami 1-1-1 Wadazaki-cho, Hyogo-ku, Kobe-shi, Hyogo Prefecture Mitsubishi Heavy Industries, Ltd. Kobe Shipyard (72) Inventor Makoto Sakuno 6-16-1, Hinoshima Enoura-cho, Shimonoseki City, Yamaguchi Prefecture Mitsubishi Heavy Industries Ltd. Shimonoseki Shipyard (72) Inventor Takeo Takekawa 1 Yawata Kaigan Dori, Ichihara City, Chiba Prefecture Mitsui Shipbuilding Co., Ltd. Chiba Works (72) Inventor Atsushi Majima 19 Natsushima-cho, Yokosuka City, Kanagawa Sumitomo Heavy Industries, Ltd. Oppama Shipyard (72) Inventor Ryuichi Hayashi 2-chome, Suehiro-cho, Tsurumi-ku, Kanagawa Prefecture Nippon Steel Tube Co., Ltd., Tsurumi Works

Claims (1)

[Claims] 1. An inner frame on which a ship model can be mounted, an outer frame that supports the inner frame so as to be swingable through a pair of support shafts, and an outer frame that is tiltably supported through a pair of support shafts. A support base is provided, and the rotation axis for tilting the outer frame and the rotation axis for swinging the inner frame are set at right angles to each other, and the outer frame is required for the support base. A tilt setting holding mechanism capable of holding the set inner tilt angle and a drive mechanism capable of swinging the inner frame with respect to the outer frame are provided to control the swing period and amplitude of the inner frame with respect to the outer frame. To adjust
The drive mechanism comprises a variable speed motor and a replaceable eccentric cam that is rotationally driven by the motor to swing the inner frame. apparatus.