KR101126566B1

KR101126566B1 - Self-propelled submerged cart for model channel

Info

Publication number: KR101126566B1
Application number: KR1020100037199A
Authority: KR
Inventors: 조용식
Original assignee: 한양대학교 산학협력단
Priority date: 2010-04-22
Filing date: 2010-04-22
Publication date: 2012-03-22
Also published as: KR20110117782A

Abstract

The present invention is a water tank moving along the bottom of the hydraulic model experiment water is installed on the side of the rectangular water cart at a right angle to the main cylinder and the test channel parallel to the experimental water to press the side wall with the experimental water. A subcylinder is installed so that the subcar can travel intermittently as these main cylinders and the subcylinders are repeatedly operated.
Through the present invention, it is possible to freely move the analogous model in the experimental channel without performing drainage to the experimental channel during the hydraulic model experiment, as well as to secure the fixing between the experiments. Convenience can also be achieved.

Description

Self-propelled submersible trolley to experiment water {SELF-PROPELLED SUBMERGED CART FOR MODEL CHANNEL}

The present invention is a water tank moving along the bottom of the hydraulic model experiment water is installed on the side of the rectangular water cart at a right angle to the main cylinder and the test channel parallel to the experimental water to press the side wall with the experimental water. A subcylinder is installed so that the subcar can travel intermittently as these main cylinders and the subcylinders are repeatedly operated.

1 is a general hydraulic model test channel 90, the water supply and drain pipes are respectively connected to both ends of a spherical channel having a transparent side wall, as shown in the case The upstream end is equipped with a sowing machine, and although not shown, the upstream type water tank is installed at the upper part of the water supply pipe so as to maintain a constant flow rate during the experiment.

The hydraulic model test is an experiment for observing and analyzing the hydraulic behavior of various hand structures such as dams, beams, bridges, and harbors. After the model is installed, the flow or wave of various conditions are artificially generated, and the change of the water level, flow velocity, and water pressure, and the external force and deformation applied to the similar model are conducted. In order to derive the experimental results, it is necessary to install a similar model at the exact position in the experimental channel 90 for each experimental condition.

In the case of the conventional experimental channel 90, the hydraulic experiment was carried out by simply mounting or attaching the analogous model to the bottom or sidewall of the experimental channel 90. When moving in the experimental channel 90 of the similarity model according to the change, it was inconvenient to repeat the removal and reinstallation by hand in a completely drained state.

Therefore, the method of fastening the upper model to a separate mounting table and then fastening the mounting table to the test channel 90 may be considered, but the test channel 90 may be damaged during the fastening process of the mounting table and the test channel 90. Not only that, there was a problem in that the drainage of the experimental channel 90 must be carried out even when the mounting table is moved.

The present invention was devised in view of the above-described problems, and is a submersible bogie 10 moving along the bottom surface of an experimental waterway 90 for repair experiments. The main cylinder 21, which is a roller and a fluid pressure cylinder, is installed, and the rear end of the main cylinder 21 parallel to the test channel 90 is fixed to the subsea vehicle 10 and the piston rod end of the main cylinder 21 is fixed. Coupled to a linear bush 22 fixed to the side surface of the subsea vehicle 10, a subcylinder 23, which is a fluid pressure cylinder, is perpendicular to the test channel 90 in the piston rod of the main cylinder 21. Although the pressure plate 24 is installed at the tip of the piston rod of the auxiliary cylinder 23, the compression plate 24 is in close contact with the side wall of the test channel 90 when the piston rod is pushed out of the auxiliary cylinder 23. As the piston rods of the cylinder 21 and the subcylinder 23 repeat reciprocating, the subsea vehicle 10 runs intermittently. A self-propelled water balance of the number of experiments that.

Through the present invention, it is possible to freely move the analogous model in the experimental channel without performing drainage to the experimental channel during the hydraulic model experiment, as well as to secure the fixing between the experiments. Convenience can also be achieved.

1 is a perspective view of a conventional hydraulic model experiment water
2 is a perspective view of the present invention
3 is a perspective view of the use state of the present invention
Figure 4 is an exploded perspective view of the main portion excerpt excavation of the present invention
5 is a schematic view of the operation method of the present invention

The detailed configuration and operation principle of the present invention will be described with reference to the accompanying drawings.

First, Figure 2 is a perspective view showing the appearance of the present invention, as can be seen through the figure, the rollers are installed on the front and rear ends of both sides of the rectangular water cart 10 along the bottom of the experimental waterway 90 It travels, and the main cylinder 21, the sub cylinder 23, the linear bush 22, etc. are installed in the both sides of the subsea vehicle 10. As shown in FIG.

The main cylinder 21 and the sub cylinder 23 applied to the present invention preferably apply a pneumatic cylinder for quick operation and simplification of the accessory as a fluid pressure cylinder.

The submersible bogie 10 of the present invention is connected to the main cylinder (compressor 18) and the flexible pneumatic tube 19 outside the experimental waterway 90 as shown by the virtual line in FIG. 21) and the piston rod of the sub-cylinder 23 is periodically extruded and sucked to intermittently run the bottom surface of the experimental waterway (90).

As shown in FIG. 2, the two main cylinders 21, the auxiliary cylinders 23, and the linear bushes 22 are symmetrically installed on both sides of the lower side of the subsea vehicle 10, respectively, and are installed at the end of the piston rod of the secondary cylinder 23, respectively. The pressing plate 24 presses both side walls of the test channel 90.

As shown in Figures 2 and 4, the main cylinder 21 is installed in the running direction of the water cart 10, that is, the direction parallel to the experimental waterway 90, the rear end of the water tank 10 to the side It is fixed in a hinged or rigid state, the piston rod front end portion of the main cylinder 21 is coupled to the linear bushing 22 fixed to the side of the subsea vehicle 10 to perform the axial reciprocating motion.

In addition, the subcylinder 23 is fixedly installed on the piston rod of the main cylinder 21, and the pressing plate 24 is installed at the tip of the piston rod of the subcylinder 23, and the compression is performed as the subcylinder 23 piston rod is extruded. The plate 24 presses the side wall of the experimental channel 90.

As shown in FIG. 4, the piston rod end portion of the main cylinder 21 coupled through the linear bush 22 is formed in a non-circular cross section, and the hole cross section of the linear bush 22 is also a piston rod. It is manufactured in the same shape as the front end, the axial reciprocating motion of the main cylinder 21 piston rod is ensured, but the rotation is constrained so that the sub-cylinder 23 fixed to the main cylinder 21 piston rod of the test channel 90 It is preferable to comprise so that a side wall may be pressed at right angles.

The main cylinder 21 and the sub cylinder 23 to which the present invention is applied are both double acting, and both positive and negative pressures can be applied, and valves for intermittently controlling the respective pneumatic pipes 19 and the like. Various accessory devices can be configured, but this is a matter that can be carried out by one of ordinary skill in the art to which the present invention pertains and does not limit the scope of the claims.

On the other hand, a number of fastening holes (39) are formed in the subsea vehicle (10) to mount a similar model required for the hydraulic experiment.

The self-propelled subsea vehicle 10 of the present invention is a method in which the main cylinder 21 and the sub-cylinder 23 move while repeating the extrusion and suction periodically, the specific operation principle of which is shown in FIG. .

First, as shown in the upper view of FIG. 5, in the state where the piston rod of the main cylinder 21 is extruded as much as possible, the piston rod of the subcylinder 23 is also extruded so that the press plate 24 closely adheres to the side wall of the experimental channel 90. When the piston rod of the subcylinder 23 is sucked and the piston rod of the main cylinder 21 is sucked as much as possible while the piston rod of the subcylinder 23 is released from the fixed state, the subcylinder 23 is shown in the drawing. Will move up and to the right.

Subsequently, the piston rod of the subcylinder 23 is extruded, and the piston rod of the main cylinder 21 is extruded while the pressing plate 24 is tightly fixed to the side wall of the test channel 90. It will be advanced to the upper right, the water cart 10 is to be moved intermittently while repeating the above process.

As described above, the underwater truck 10 of the present invention, which is repeatedly moved and fixed, is not limited to the effect of automatic driving without manpower, but has an advantage of being able to stop and fix precisely at a desired position. It is possible to freely move and firmly secure the underwater bogie 10 between experiments without draining the experimental channel 90.

That is, when the submersible bogie 10 reaches the desired target point by the driving of the main cylinder 21, the piston rod of the subcylinder 23 is extruded, and then the applied pneumatic pressure is continuously maintained to maintain the applied pneumatic bogie. 10) is to be firmly fixed to the experimental channel (90).

Through the present invention as described above it is possible to freely move and firmly fixed in the experimental channel 90 of the similarity model used in various hydraulic experiments, thereby ensuring the accuracy of the experiment (實驗精度) and experimental convenience.

10: underwater cart
18: Compressor
19: pneumatic pipe
21: main cylinder
22: linear bush
23: cylinder
24: pressing plate
39: fastener
90: number of experiments

Claims

As an underwater bogie (10) moving along the bottom of the hydraulic experimental waterway (90),
On the side of the rectangular water cart 10, a plurality of rollers and main cylinders 21, which are hydraulic pressure cylinders, are installed, and the rear end of the main cylinder 21 parallel to the test channel 90 is connected to the water cart 10. The piston rod tip of the main cylinder 21 which is fixed and is fixed to a linear bush 22 fixed to the side of the subsea vehicle 10;
The subcylinder 23, which is a fluid pressure cylinder, is installed on the piston rod of the main cylinder 21 at right angles to the test channel 90, and the pressing plate 24 is installed at the tip of the piston rod of the subcylinder 23. When extruding the piston rod of the auxiliary cylinder 23, the pressing plate 24 is in close contact with the side wall of the experimental channel 90,
Self-propelled submersible tank to the experimental water, characterized in that the suburban vehicle 10 intermittently travels as the piston rod of the main cylinder 21 and the subcylinder 23 repeats the reciprocating.