JPS647116Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a large structure traveling device used for transporting large structures such as ships, plant equipment, and bridges over land.

Conventionally, for example, as shown in FIG. It is transported to a designated location by being towed by a vehicle. In such a conventional configuration, the large truck 5 is expensive because it has to be large and strong, and is uneconomical because it is used infrequently (in some cases, only once). Furthermore, during transportation,
There is a recess in the road surface, and when the wheels of the large truck 5 reach the recess, the wheels are in a non-contact state and do not receive any load. As a result, the main body of the large truck 5 is bent, so the strength must be further improved. Further, the large structure 2 itself has an uneven load, and when the wheels near the maximum load part come into a non-contact state, the above-mentioned deflection occurs significantly.

As shown in FIG. 2, if there is no quay 4 on the land 7 side, a quay 4A is constructed by pouring concrete, etc., and this quay 4A is used to construct a large structure 2.
The cargo will be unloaded. In this case, the construction cost of quay 4A would be huge.

Furthermore, the biggest problem with both conventional types is that the vehicle cannot smoothly negotiate curves while driving on the road. This is because the load of the large structure 2 acts on the wheels, which generates large frictional resistance, making it difficult to turn smoothly even if caster wheels are used.

The purpose of this invention is to be able to transport large structures regardless of whether there is a quay, to have a versatile and inexpensive configuration, and to be able to always touch the ground at a predetermined pressure regardless of the unevenness of the road surface. Another object of the present invention is to provide a traveling device for large structures that can smoothly travel around curves and can be easily attached to large structures.

In order to achieve the above object, the traveling device for a large structure according to the present invention is provided with a support member having a support member on the upper part that can be sucked to the bottom side of the large structure, and a cylinder device is mounted on the bottom surface of the support member on the vertical axis. A wheel support frame is attached to the lower end of the downward piston rod of the cylinder device, a grounding wheel and a travel drive device are provided to the wheel support frame, and a cylinder is attached to the cylinder device so as to be rotatable around the center, and a rotation drive device is provided. At the same time, these cylinders and the pressurizing chamber of the cylinder device are communicated via an exhaust injection switching valve, and a wireless pressure setting device is provided which is linked to this exhaust injection switching valve.

According to the present invention, by attaching a plurality of cylinder devices to the bottom side of a large structure using the adsorption action of the receiver, it is possible to make it possible to transport the structure, and by removing it after transport. Can be reused for transporting other large structures. Furthermore, by setting the wireless pressure setting device to the desired pressure value,
When the grounding wheel faces a recess, for example, and the pressure in the pressurizing chamber decreases, the exhaust injection switching valve is switched to the injection side, and the fluid in the cylinder is injected into the pressurizing chamber to automatically maintain the desired pressure. For example, when the grounding wheel faces a convex portion and the pressure in the pressurizing chamber increases, the exhaust injection switching valve is switched to the exhaust side, and the fluid in the pressurizing chamber is exhausted to automatically attain a desired pressure. The desired pressure value can also be adjusted wirelessly. Further, by rotating the cylinder device around the vertical axis using the rotary drive device, the direction of the grounding wheel can be changed, and the traveling drive device can drive and rotate the grounding wheel. Furthermore, attachment to a large structure can be easily performed due to the adsorption action of the receiver.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 7. In FIGS. 3 and 4, reference numeral 10 denotes a support member, and a receiver 11 that can be sucked onto the bottom side of a large structure is attached to the upper part of the support member via a connecting pin 12. That is, the receiver 11 includes a rigid bowl-shaped body 13 attached to the support member 10, and an elastic seal member 1 attached to the upper edge of the bowl-shaped body 13.
4, a suction hose 15 that communicates between a vacuum pump (not shown) and the inside of the bowl-shaped body 13, and a mounting member 1 disposed inside the bowl-shaped body 13 via a plurality of arm rods 16.
7 and a plurality of electromagnets 18 flexibly arranged on the mounting member 17, each electromagnet 18 is rubber-kept on the mounting member 17. A lower cylinder device 19 of the support member 10 is rotatably mounted around a vertical axis 20. That is, a plurality of balls 22 are arranged between the upper surface of the main body 21 and the lower surface of the support member 10 in the cylinder device 19, so that both 10 and 21 can freely rotate relative to each other around the vertical axis 20, and the main body 21 A locking member 23 for preventing slippage is provided on the upper part of the cover. Reference numeral 24 denotes a rotation drive device, which includes a vertical pin 25 erected from the upper part of the main body 21 by locking or welding to be positioned on the vertical axis 20, a worm wheel 26 attached to the vertical pin 25, and a worm wheel 26 attached to the vertical pin 25. It is composed of a worm gear 27 that meshes with the worm wheel 26 and is rotatably attached to the support member 10, and a hydraulic motor 28 that is interlocked with the worm gear 27 and attached to the support member 10. The cylinder device 19 is composed of the main body 21, a piston 29 disposed within the main body 21, and a piston rod 30 that is integrated with the piston 29 and projects downward.
A pressurizing chamber 31 is located above the piston 29 within the main body 21 . A wheel support frame 32 is attached to the lower end of the piston rod 30.
A low-pressure grounding wheel 34 is attached to 2 via a transverse axle 33. Further, the wheel support frame 32 is provided with a hydraulic motor 35 which is a traveling drive device and is interlocked with the axle 33. Furthermore, piston 29
A rotation prevention rod 36 is provided between the wheel support frame 32 and the wheel support frame 32. The main body 21 includes a cylinder 3.
7 is attached via a fixture 38, and a fluid such as carbon dioxide gas or air is sealed in this cylinder 37 at high pressure. The pressurized chamber 31 and cylinder 37
A wireless pressure setting device 41 is connected to the exhaust gas injection switching valve 39 via a line 40 having an exhaust gas injection switching valve 39.

The action will be explained below. For example, as shown in FIG. 5, a large structure 43 transported by a ship 42
is moved above the quay 45 by a marine crane 44, and a plurality of traveling devices are attached to the lower surface of the large structure 43, for example, in a grid pattern as shown in FIG. This attachment is accomplished by, for example, deforming the sealing member 14 and bringing it into pressure contact with the lower surface of the large structure 43 as shown in the imaginary line in FIG.
This is done by energizing 8 to attract the attachment member 17, and at the same time deaerating the inside of the bowl-shaped body 13 via the suction hose 15 to attract the attachment member 17. Next, a wireless instruction is given to each wireless pressure setting device 41 by operating a wireless device 47 loaded on the trailer 46 side. As a result, the wireless pressure setting device 41
The pressure at zero is detected, and based on the detected pressure, an output is sent to the exhaust injection switching valve 39 to switch the exhaust injection switching valve 39 to the injection state. As a result, the fluid in the cylinder 37 is injected into the pressurizing chamber 31, and the pressurizing chamber 31 is brought to a desired pressure. By lowering the large structure 43 and landing each grounding wheel 34 on the quay 45,
This large structure 43 becomes movable. Here, the trailer 46 carries a control device 48, and electrical cables 49, hydraulic cables 50, suction hoses 15, etc. from this control device 48 are connected to each traveling device, respectively. Therefore, by operating the hydraulic motor 35 to drive and rotate each grounding wheel 34, the large structure 43 can be self-propelled. As shown in FIG. 6, a recess 51a is formed on the road surface 51 while driving.
When this occurs, the grounding wheel 34 facing the recess 51a is lowered by the fluid pressure in the pressurizing chamber 31 and comes into contact with the recess 51a. Pressurized chamber 31 expanded at this time
The pressure in the cylinder 37 becomes lower than the desired pressure, but this is because the exhaust injection switching valve 39 is switched to the injection state by the output B based on the detection A, and the fluid in the cylinder 37 is injected into the pressurizing chamber 31. The pressure inside the pressurized chamber 31 is adjusted to a desired pressure. When the grounding wheel 34 attached to the cylinder device 19 with the desired pressure in the concave portion 51a moves to the normal road surface 51, or when the grounding wheel 34 on the road surface 51 moves to the convex portion 51b, the grounding wheel 34 The corresponding pressurized chamber 31 is compressed and the pressure rises above the desired pressure. The exhaust injection switching valve 39 is switched to the exhaust state by the output B based on the detection A at this time, and the fluid in the pressurized chamber 31 is released to the atmosphere, and the pressure in the pressurized chamber 31 is adjusted to a desired pressure. . When the large structure 43 comes to the curved path, the rotary drive device 24 is activated to move the cylinder device 19 to the vertical axis 2.
0, thereby changing the direction of the grounding wheel 34 as shown in the imaginary line in FIG. The direction is changed from the front side of the vehicle, and in the left-right direction, the angle on the direction of the turn becomes larger. For this purpose, the arrangement position (distance) of each ground contact wheel 34 is set in advance in the control device 48.

As shown in FIG. 8, when there is no quay on the land 52 side, a traveling device is installed at sea on the underside of a large structure 43 that has been towed or lowered from a ship 42 and is in a floating state. . And this large structure 4
3 may be pulled onto land 52 by a trailer 46 via a rope 53 or the like. At that time, each cylinder device 19 has its pressurizing chamber 31 as described above.
The desired pressure of is maintained.

When the load at each location on the plane of the large structure 43 is constant or approximately constant, the desired set pressure of each pressurizing chamber 31 may be constant. However, in the case of an uneven load, the pressurizing chamber 31 of each cylinder device 19 in FIG.
The desired set pressure for can be varied pointwise or linearly.

As shown in FIG. 4, when a sensor 54 for detecting wall thickness is provided on the mounting member 17 side, aggregates 55 and the like within the large structure 43 can be confirmed, and the traveling device can be set at a location suitable in terms of strength.

The traveling device for large structures according to the present invention described above can be expected to have the following effects. That is, by attaching a plurality of cylinder devices to the bottom side of a large structure via attachment members, it is possible to make the structure transportable. Moreover, by removing it after transportation, it can be reused for transporting another large structure, making it possible to construct a versatile and inexpensive structure. Furthermore, by setting the wireless pressure setting device to a desired pressure value, when the ground wheel faces a recess and the pressure in the pressurizing chamber decreases, the exhaust injection switching valve is switched to the injection side, and the pressure inside the cylinder is changed to the injection side. Fluid is injected into the pressurizing chamber to automatically bring it to the desired pressure, and when the pressure inside the pressurizing chamber increases, for example, when the ground wheel faces a convex area, the exhaust injection switching valve is switched to the exhaust side to pressurize the chamber. The fluid in the room can be evacuated to automatically reach the desired pressure, and the vehicle can always be brought into contact with the ground at the desired pressure regardless of the unevenness of the road surface, making stable driving possible. Moreover, large structures can be transported without using expensive carts and regardless of whether there is a quay or not. Moreover, the desired pressure value can be easily adjusted wirelessly. Furthermore, by rotating the cylinder device around the vertical axis using the rotary drive device, the direction of the ground contact wheel can be changed, and the travel drive device can drive and rotate the ground contact wheel, thereby making it possible to smoothly drive around curves. And it can be done reliably. In particular, attachment to a large structure can be easily carried out at any desired location due to the suction effect of the receiver.

[Brief explanation of drawings]

Figs. 1 and 2 are side views showing conventional examples, Figs. 3 to 7 show an embodiment of the present invention, Fig. 3 is a side view, and Fig. 4 is a partially cutaway front view. , Figure 5,
FIG. 6 is a side view showing the operating state, FIG. 7 is a schematic plan view, and FIG. 8 is a side view showing another embodiment. 10... Support member, 11... Receiver, 13...
Bowl-shaped body, 14... Seal member, 15... Suction hose, 17... Mounting member, 18... Electromagnet, 19
... Cylinder device, 20 ... Vertical axis center, 24 ... Rotation drive device, 30 ... Piston rod, 31 ...
Pressurizing chamber, 32...Wheel support frame, 34...Grounding wheel, 35...Hydraulic motor (traveling drive device), 37
...Cylinder, 39...Exhaust injection switching valve, 41...
Wireless pressure setting device, 43...Large structure, 44...
Maritime crane, 45... Quay, 46... Trailer, 47... Wireless device, 48... Control device, 54
...sensor, 55...aggregate.

Claims (1)

[Scope of utility model registration request] A support member having a suctionable receptacle on the upper part is provided on the bottom side of the large structure, a cylinder device is attached to the bottom surface of the support member so as to be rotatable around the vertical axis, and a rotation drive device is provided, and the cylinder device A wheel support frame is attached to the lower end of the downward piston rod, a grounding wheel and a travel drive device are installed on the wheel support frame, a cylinder is attached to the cylinder device, and exhaust injection is switched between these cylinders and the pressurizing chamber of the cylinder device. A traveling device for a large structure, characterized by being provided with a wireless pressure setting device communicating through a valve and interlocking with the exhaust injection switching valve.