JP3110850B2 - Heavy equipment moving equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving means using a hydrostatic bearing for moving a heavy object such as an openable dome roof.

[0002]

2. Description of the Related Art As a means for moving a heavy object such as an openable dome roof, a moving device using a hydrostatic bearing for reducing frictional resistance by a fluid pressure such as air or water is known. This forms a smooth runway along the movement path, forms a fluid chamber facing this runway in the bearing body, and continuously supplies high-pressure water or high-pressure air to the fluid chamber, thereby moving the bearing body slightly from the road surface. It is intended to float on. As a result, the frictional resistance between the bearing body and the road surface is greatly reduced, and a heavy object can be moved with a small force.

Further, as means for moving the bearing along the road surface, for example, a wire drive mechanism for pulling the bearing body with a wire or a pinion meshing with a rack laid on the road surface is provided on the bearing body, and the rack is driven to rotate. Pinion mechanisms are known.

[0004]

However, in the case of a wire drive mechanism, it is good if the track is straight, but when the roof of a circular dome is moved in the circumferential direction, for example, it is difficult to search for a rope because the track curves. Met.

On the other hand, in the case of the rack and pinion mechanism, it is necessary to lay the rack over the entire length of the track, resulting in a problem that the cost is increased and the time required for construction is increased.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a moving device having a simple structure applicable to a curved lane or a long lane.

[0007]

SUMMARY OF THE INVENTION The present invention provides a hydrostatic bearing coupled to a heavy object and a substantially horizontal road surface for sliding the hydrostatic bearing.
And a road surface substantially perpendicular to the road surface, a wheel provided with a rubber contact surface that is coupled to the hydrostatic bearing and rolls on the road surface, and a motor that rotationally drives the wheel.

[0008]

[Function] A substantially horizontal running surface for sliding the hydrostatic bearing and a substantially vertical surface.
The track of the hydrostatic bearing is composed of the runway consisting of the smooth runway surface
Can move heavy objects along the track.
It works. Since the vehicle runs on wheels driven by a motor, it can be driven along a track by a wire drive mechanism or rack and pinion drive.
There is no need to provide a dynamic mechanism, so curved
It can also be applied to roads.

[0009]

1 to 6 show an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a support leg of an openable / closed dome roof, and a hydrostatic bearing 2 mounted downward on a block 1A having a rectangular cross section at a lower end and a hydrostatic bearing 3 mounted laterally.
Supported by

The running path 4 is opposed to the hydrostatic bearings 2 and 3.
And 5 are formed. Runways 4 and 5 are shown in Figures 2 and 3
Is constructed inside a concrete structure 20 having a U-shaped cross section shown in FIG. The runway 4 is provided at a horizontal bottom portion of the U-shape, and the runway 5 is provided at a vertical wall portion, each of which has a smooth surface.

Each of the hydrostatic bearings 2 and 3 is of a hydraulic type.
Hydraulic chambers facing the runways 4 and 5 are provided inside, and pressurized water is continuously supplied to these hydraulic chambers, so that the hydrostatic bearings 2 and 3 are slightly raised from the runways 4 and 5 by hydraulic pressure. For this reason, water always jets out onto the runways 4 and 5 from the gaps between the hydrostatic bearings 2 and 3 and the runways 4 and 5. The hydrostatic bearings 2 and 3 are elastically supported on the block 1A by an accumulator (not shown).

A wheel 6 containing a running motor is mounted on the block 1A via a bearing member 9. The wheels 6 are grounded on the track 4, and hard rubber is mounted on the outer periphery thereof.
The bearing member 9 is supported by the block 1A via a hinge 7 so as to be vertically displaceable, and is pressed downward by a hydraulic cylinder 8 having one end connected to the block 1A.

Next, the operation will be described.

When moving, pressurized water is supplied to the hydrostatic bearings 2 and 3 so as to float up from the running paths 4 and 5, respectively. Then, the motor built in the wheel 6 is driven to rotate the wheel 6. The wheels 6 installed on the runway 4 via the hard rubber pull the block 1A by the frictional force with the runway 4 by this rotation, and move the support leg 1 along the runways 4 and 5.

The coefficient of friction (μ) of a hydrostatic bearing is generally 0.0
The friction coefficient (μ) between the hard rubber of the wheel 6 and the road surface 4 is about 0.5. For this reason, 0.01 / 0.
5 = 0.02, that is, the supporting leg 1 is moved by applying a propulsive force of about 2% of the load supported by the hydrostatic bearings 2 and 3.

The runway 4 is always wet due to water spouting from the hydrostatic bearing, but the wheels 6 with hard rubber are less slippery than iron wheels and are pressed downward by the hydraulic cylinder 8, so that the runway 4 is pressed down. 4 has good followability to unevenness.
Therefore, a stable driving force is obtained, and the support leg 1 moves smoothly. The pressing force of the hydraulic cylinder 8 against the wheel 6 can be adjusted arbitrarily. If the running distance is short and the road surface 4 has a high degree of smoothness, the hydraulic cylinder 8 is omitted and the bearing member 9 is replaced with the block 1A. , And the following of the track 4 on the road surface can be ensured only by the elasticity of the rubber of the wheels 6.

The roof 10 moves only in a straight line as shown in FIG. 5 because of the drive by the wheels 6, and the roof 11 moves in a circular track as shown in FIG. Can also be applied.

[0019]

As described above, according to the present invention, a predetermined hydrostatic bearing is provided.
Can be moved along the trajectory of, for example,
Move the support legs of the dome roof along a long curved path
It is possible to do.

[Brief description of the drawings]

FIG. 1 is a side view of a moving device according to an embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows AA in FIG.

FIG. 3 is a view taken in the direction of arrows BB in FIG. 1;

FIG. 4 is a plan view of the moving device.

FIG. 5 is a plan view of a movable roof to which the moving device is applied.

FIG. 6 is a plan view of a movable roof to which the moving device is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support leg 2,3 Hydrostatic bearing 4,5 Runway 6 Wheel

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-66004 (JP, A) JP-A-49-23039 (JP, A) JP-A-2-136366 (JP, A) 97065 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 7/06

Claims (1)

(57) [Claims] A hydrostatic bearing coupled to a heavy object and a hydrostatic bearing are provided.
It consists of a substantially horizontal runway surface and a substantially vertical runway surface
Runway and a wheel having a rubber contact surface for rolling on the track and coupled to the hydrostatic bearing, the mobile device of heavy characterized in that it comprises a motor for rotationally driving the wheels.