JPH10194414A - Heavy substance moving mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the weight to be moved, and to be loaded by a wheel when the wheel is lowered and a truck is floated, by disposing a skirt-shaped seal member for isolating a space of a bottom face of the truck from an external, on a peripheral edge of the bottom face of the truck continuously, and rising the pressure in the space of the lower part of the truck through air supply means. SOLUTION: To improve the rigidity of a plate 4 which receives the natural lawn 2 of the field, plural truss beams 3 are installed in a transverse direction of a bottom face, and the reinforcement ribs 5 are installed in a direction vertical to the truss beams 3. A shock absorbing member 6 for floor grounding, is stuck to the lower face of the truss beam 3, so that it supports the total weight of the field 1 when the field 1 is used. A horizontal plate 7 is extended to a whole lower peripheral edge of the plate 4, and a skirt-shaped seal member 8 is suspended from the all-round lower edge of the horizontal plate 7. The pressure in the space S is risen to a specific value by an air compressor, and then the field 1 is risen by the lowering of the wheel 13 by the operation of a hydraulic cylinder 16. 90% of the weight of the field 1 is supported by the air pressure, and 10% of the same is supported by the wheel 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heavy object moving mechanism (hereinafter, simply referred to as a moving mechanism). More specifically, the present invention relates to a moving mechanism for moving a heavy object such as a building, one block of spectator seats in a stadium, or a ship.

[0002]

2. Description of the Related Art Conventionally, as a mechanism for moving a heavy object as described above on the ground such as a road surface, for example, a large number of wheels are provided, and rails laid for that purpose are provided. In addition, a method using a so-called water carrier, in which a narrow parallel gap is provided between the moving object and the floor surface and pressure water is injected into the gap to support the moving object by the water pressure, is used. Are known.

[0003] However, a mechanism that moves a moving object while supporting a heavy object with wheels has the advantage that the moving object can be moved in a stable state, but requires an enormous number of wheels and requires a high-output driving device. In addition, the initial cost including the rail installation cost becomes extremely high, and further, the maintenance cost is increased.

[0004] When a water carrier is used, there are severe restrictions on the smoothness of the running surface, and the places where the water carrier can be used are limited in view of the treatment of the used water.

[0005] On the other hand, as a transfer device using air pressure, a transfer device disclosed in Japanese Patent Application Laid-Open No. 50-97010 is known. This is provided with a plurality of so-called donut-shaped balloon-like air bearing elements on the bottom surface of a bed, and the air bearing elements are inflated by compressed air to lift the bed. And a running resistance is reduced by flowing an air current from the inside of the donut of the air bearing element to the outside between the air bearing element and the floor surface to form a thin film of air, thereby allowing the carriage to run by one driving wheel. It is.

[0006] However, since the carrier is supported by a plurality of air bearing elements, the carrier can be applied only to a small carrier having high rigidity. If the bed is thin and it is 1
If the platform exceeds 0 meters, that is, if it has low rigidity and a large horizontal area, stable floating cannot be expected due to imbalance in weight distribution.
As a result, the cargo platform will skid due to the horizontal partial pressure of the air inside the donut of the air bearing element applied to the cargo platform. Moreover, due to the imbalance, excessive gravity of the carrier is applied to the air bearing element at a specific location, causing damage or breakage.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and the weight of a heavy object to be moved is equally distributed to the wheels as well as the air pressure, thereby improving the horizontal stability of the heavy object to be moved. It is an object of the present invention to provide a moving mechanism for holding and moving efficiently.

[0008]

SUMMARY OF THE INVENTION A moving mechanism according to the present invention is a skirt-shaped sealing member which is disposed continuously around a periphery of a bottom surface of the carriage to isolate a space below the carriage from the outside. And a plurality of vertically movable wheels disposed at appropriate locations on the bottom surface, and air supply means disposed at appropriate locations on the bottom surface.

With this configuration, the moving mechanism of the present invention is
Since the space below the carriage is boosted by the annotation means, the weight to be moved by the wheels when the wheels are lowered to lift the carriage is reduced. Therefore, the number of wheels and the number of rails are reduced, and in some cases, rails are unnecessary and rubber tires can be used instead of metal wheels. Furthermore, since the moving object and the bogie are supported on the floor via wheels,
Compared to the case of supporting only by air, the moving can be performed in a stable state, and so-called side slip does not occur.

[0010] It is preferable that the bogie has a substantially flat bottom surface.

[0011] In the heavy object moving mechanism in which the cart constitutes a heavy object body to be moved, it is necessary to convey the heavy object onto the cart under the condition that the heavy object to be moved is limited. And the above-mentioned effects can be obtained.

Further, a plurality of support members are fixedly provided at appropriate places on the bottom surface, and the support members are configured to be in contact with the floor surface to support the structure above the floor member. In a heavy object moving mechanism configured to be able to extend below the lower end of the supporting member when the possible wheel is lowered, the weight is not applied to the wheel or the like when stationary (when not moving), so that the stable In this state, the stationary posture can be maintained, and the life of the entire moving mechanism can be extended. Further, a differential pressure detector for detecting a differential pressure between the internal pressure of the isolated space below the upper structure and the outside atmospheric pressure is provided, and the air supply means takes in air from the outside and detects the upper structure. And a control device capable of controlling the air flow rate of the air compressor based on the differential pressure signal detected by the differential pressure detector. In the object moving mechanism, the internal pressure of the isolated space can be adjusted according to the weight of the upper structure, so that the weight applied to the wheels can be adjusted.

Further, each of the wheels can be moved up and down by a hydraulic cylinder, and a pressure detector for detecting the internal pressure of the hydraulic cylinder is provided. In a heavy object moving mechanism in which a control device capable of controlling the air supply amount of the air supply means based on a pressure signal is provided, according to the weight of the upper structure, If the weight distribution is slightly uneven, it is possible to prevent an excessive weight from being applied to the wheels by adjusting the internal pressure of the isolated space.

In the above heavy object moving mechanism, if the cleaning means for cleaning the road surface is disposed at least below one side of the truck on the forward side, foreign substances on the road surface are removed, and the seal member is removed. The sealing effect is improved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a moving mechanism according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a plan view showing an embodiment of the moving mechanism of the present invention, FIG. 2 is a partially cutaway perspective view showing a part of the moving mechanism of FIG. 1, and FIG. FIG. 4 is a sectional view taken along line III-IV of FIG.
5 is an enlarged view of a portion taken along line VV of FIG. 1, FIG. 6 is a cross-sectional view showing an example of a seal member in the moving mechanism of FIG. 1, and FIG. 7 is another example of a seal member in the moving mechanism of FIG. 8, FIG. 8 is a cross-sectional view showing still another example of the seal member in the moving mechanism of FIG. 1, FIG. 9 is a block diagram showing an example of an elevating mechanism in the moving mechanism of FIG. 1, and FIG. It is a flowchart which shows an example of a raising / lowering operation in a mechanism.

FIG. 1 shows a field 1 of a predetermined size for playing soccer or American football in a stadium. As an example, this field 1 has a length of 120 m and a width of 80 m, and is a quadrilateral element 1a divided into two equal parts vertically and equally divided horizontally. FIG. 2 shows the quarter element 1a.

In FIGS. 1 and 2, reference numeral 2 denotes a natural lawn planted on the soil constituting the surface of the field 1. Reference numeral 3 denotes a plurality of truss beams erected in a direction crossing the longitudinal direction of the bottom surface (referred to as a lateral direction) to improve the rigidity of the plate 4 receiving the natural lawn 2 of the field 1. Also,
As shown in FIGS. 3 and 5, reinforcing ribs 5 made of so-called H-shaped steel are further laid on the lower surface of the plate 4 in a direction perpendicular to the truss beams 3. A buffer member 6 made of an elastic material such as rubber for grounding the floor is provided on the lower surface of the truss beam 3.
Is affixed. Therefore, when the field 1 is stationary at the time of use or the like, the cushioning member 6 supports the entire weight of the field 1 via the truss beams 3.

Reference numeral 7 denotes a horizontal plate extending over the entire lower peripheral edge of the plate 4. 8 is this horizontal plate 7
Is a skirt-shaped sealing member suspended over the entire circumference of the lower edge of the skirt. The plate 4, the horizontal plate 7, and the sealing member 8
Thus, the entire space S below the plate 4 is isolated from the outside.

In the figure, reference numeral 9 denotes a plurality of air compressors (corresponding to the air supply means in the claims) provided on the lower surface side of the plate 4, and the air compressor on the intake side is provided outside the space. An intake pipe 10 that communicates with the exhaust pipe 11 is connected to the exhaust side. The exhaust pipe 11 is provided with an exhaust hole (not shown) at an appropriate position. Therefore, the air compressor 9 takes in air from outside the space S and exhausts the air into the space S, thereby increasing the pressure in the space S. Although it is not particularly necessary to provide the exhaust pipe 11, it is preferable to provide an exhaust pipe having an exhaust hole at an appropriate position in that the pressure distribution in the space S can be made uniform in a short time.

Reference numeral 12 in FIGS. 1, 3 and 5 denotes a wheel mechanism, and a plurality of wheel mechanisms are provided at appropriate positions so as to stably support the field 1 in a horizontal state. As shown in FIG. 5, the wheel mechanism 12 has a bracket 14 on which a wheel 13 is pivotally supported, and one end of which is pivotally supported by a support plate 15 fixed to the truss beam 3. The other end of the bracket 14 is provided around the pivot point P.
A hydraulic cylinder 16 for rotating the shaft is interposed between the reinforcing rib 5 and the hydraulic cylinder 16. Therefore, if the rod 16a of the hydraulic cylinder 16 is extended, the bracket 14 turns downward and the wheel 13 moves downward.
The wheel 13 is formed so as to reach below the buffer member 6 when moved to the lowermost position (indicated by a two-dot chain line in FIG. 5). Therefore, by moving the wheels 13 rearward from the state of being supported by the truss beams 3, for example, the field 1 is caused to float by about 50 mm. Reference numeral R in the figure is a rail with which the wheel 13 is engaged.

With the above configuration, first, the pressure in the space is increased to a predetermined value by the air compressor 9, and then the hydraulic cylinder 16 is operated to lower the wheels 13;
The field 1 is raised by the lowering of the wheels 13. In this embodiment, the weight of the field 1 is about 9
0% is supported by air pressure and the remaining 10% is
3 to be supported. For example, since 64 wheels 13 are provided to support the field 1 having a total weight of about 8000 tons, each wheel 13 supports 10% of the total weight when the field moves (when the field rises). Is about 12.5 tons
Becomes As described above, since the load applied to one wheel does not become so large, there is no problem even if the wheel 13 is made of a rubber tire and the rail R is omitted.

FIG. 6 shows a cross section of the seal member 8 described above. The seal member 8 is composed of two rubber plate members 17 which are suspended along the inner lower edge of the horizontal plate 7 so as to be inclined toward the inside of the space S. Although two sheets are used to ensure the seal, one or three or more sheets may be used. It will be apparent from the figure that the sealing effect is further improved when the rubber plate member 17 is bent by the internal pressure of the space S. Since the field corners of the rubber plate member 17 are formed integrally and continuously, there is no fear of leakage of internal air.
Further, if the rubber plate member 17 is made thicker, for example, when the field 1 is run, the seal member 8 at the rear edge thereof is moved.
Is not likely to be turned backward (indicated by arrow B in FIG. 6).

FIG. 7 shows a cross section of a seal member 18 according to another example. The sealing member 18 is provided for
A plurality of hinges 19 extend along the inner lower edge of the
A long plate 20 rotatably mounted inside and inclined to the inside of the space S, and a gap between the long plate 20 and the horizontal plate 7 attached to the inside of the long plate 20 for sealing. Flexible sheet 21 made of a rubber plate or the like,
And a closing member 22 made of an elastic material such as rubber disposed along the lower edge of the "0". Closing member 22
Is provided so that the seal member 18 can get over the minute unevenness of the floor surface on which the field 1 travels without being caught. The closing member 22 has a columnar or cylindrical shape, but is not particularly limited to such a shape, and may have a prismatic or plate shape. In such a configuration,
The turning up can be prevented more effectively than the sealing member 8 (FIG. 6).

FIG. 8 shows a cross section of a seal member 28 according to another example. The seal member 28 is formed in a tubular shape from a flexible material such as rubber, and is disposed continuously below the peripheral edge of the field 1, and the inside thereof is filled with compressed air. And it is elastically pressed against the floor surface.

In FIG. 6, reference numeral 23 denotes a column-shaped floor cleaning brush disposed in front of the seal member 8 along the front edge (the side in the running direction) of the field 1. . The cleaning brush 23 is rotated outward and upward (indicated by an arrow A in the figure) by a driving motor (not shown) or the like to remove foreign substances on the front floor surface of the seal member 8, and the sealing effect of the seal member 8. Is to improve. FIG. 6 shows an intake pipe 10 of the air compressor 9 projecting outward from the field 1. A filter for removing dust wound up by the cleaning brush 23 is provided at an intake port of the intake pipe 10. 25 are mounted.

It should be noted that the present invention is not particularly limited to the rotary drive type cleaning brush, and a normal brush 26 as shown in FIGS. It may be simply arranged continuously in front of 28.

FIG. 9 is a block diagram showing the lifting mechanism of the field 1. 27 is a differential pressure detector for detecting the internal pressure of the space S. This differential pressure detector 27
Is sent to the control device 29. In the control device 29, a predetermined internal pressure and the measured pressure are compared and calculated,
In order to maintain the space S at a predetermined internal pressure, the air compressor 9
Intake side flow control valve 30a and exhaust side bypass pipe 31
A signal for adjusting the valve opening is sent to each of the motors 32a and 32b of the flow control valve 30b. 33 is a motor for driving the air compressor 9.

On the other hand, the differential pressure detector 3 for detecting the hydraulic pressure of the hydraulic cylinder 16 for raising and lowering the wheel 13
The differential pressure detector 34 detects the pressure corresponding to the weight applied to the wheel 13 when the wheel 13 is lowered to lift the field 1 and sends a signal to the control device 29. . Then, the control device 29 compares the predetermined allowable load of the wheel 13 with the actual measured pressure, and opens the motors 32a and 32b of the flow control valves 30a and 30b so as not to apply an excessive weight to the wheel 13. A signal for adjusting the degree is sent. That is, when the hydraulic oil pressure of the hydraulic cylinder of a certain wheel reaches a predetermined percentage of the predetermined allowable pressure, the internal pressure in the space S is increased. Further, when the hydraulic oil pressure of the hydraulic cylinder of a certain wheel reaches a predetermined percentage of the predetermined allowable pressure, it is possible to reduce the hydraulic oil pressure of the hydraulic cylinder of the wheel and to distribute the excess load to other wheels.

The truss beam 3 has a field 1
A floating amount measuring device 35 for detecting a floating amount when the is lifted by the internal pressure of the space S and the lowering of the wheels 13 from a state in which the wheel is supported by the truss beams 3 is provided. A signal from the flying height measuring device 35 is sent to the control device 29, and the wheel speed of the wheel 1 is controlled by the control device 29 so that the predetermined flying height is obtained.
A signal is sent to a hydraulic oil supply mechanism (not shown) of the third hydraulic cylinder 16.

FIG. 10 is a flowchart showing the floating operation of the field 1 by each device of the lifting mechanism, and the reference numerals of the devices related to each operation are also shown.

Each device shown in FIG. 9 does not show the total number, but shows only a part of them. The number may be appropriately determined according to the size and weight of the field 1.

Reference numeral 36 in FIG. 1 denotes a traveling drive mechanism for horizontally traveling the entire field 1. In this embodiment, a rack and pinion mechanism installed on both sides of the field 1 is employed. doing. That is, a rack 36a is extended on both sides of the field 1 construction space in parallel with the rail R, and a pinion 36b fixed to an output shaft of a traveling drive motor is engaged with the rack 36a. Of course, the present invention is not limited to the rack and pinion mechanism.
An electric motor or the like for rotating the wheels 13 may be installed on a part or all of the
A wire or the like may be attached to the device, and the wire or the like may be drawn from the advancing side or the retreating side.

In this embodiment, the hydraulic cylinder is used to lower the wheel 13. However, the present invention is not limited to the hydraulic cylinder, and a pneumatic cylinder, an electric motor, a hydraulic motor, a coil spring and the like can be employed. . For example, when a wheel is supported by a coil spring, the space S
The field 1 rises due to the restoring force of the coil spring accompanying the increase of the internal pressure. Therefore, since the maximum stress is generated in the coil spring when the internal pressure is zero, if the stress generated in the coil spring is designed to be equal to or less than the allowable stress at the time of designing the spring, the coil spring is particularly loaded during operation. There is no need to evaluate the load.

In this embodiment, the field is taken as an example of the heavy body, but the present invention is not particularly limited to the field.
It can be widely applied to buildings and the like. Further, a truck composed of the plate 4 and the truss beam 3 may be employed instead of the field, and a heavy object to be moved may be placed or mounted on the truck.

[0036]

According to the present invention, the space below the carriage is boosted by the annotation means, so that the weight of the moving object that the wheels bear when the wheels descend and the carriage floats is reduced. Therefore, the number of wheels is reduced, and the number of rails is also reduced. In some cases, rails are not required, so that equipment costs are reduced. Moreover, if rails are not required, rubber tires can be used instead of metal wheels.
Furthermore, since the moving object and the cart are supported on the floor via the wheels, they can be moved in a stable state as compared with the case where they are supported only by air, and so-called side slip does not occur.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a moving mechanism of the present invention.

FIG. 2 is a partially cutaway perspective view showing a part of the moving mechanism of FIG. 1;

FIG. 3 is a sectional view taken along line III-III of the moving mechanism of FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV of the moving mechanism of FIG. 1;

FIG. 5 is an enlarged view of a portion taken along line VV of FIG. 1;

FIG. 6 is a sectional view showing an example of a seal member in the moving mechanism of FIG.

FIG. 7 is a sectional view showing another example of the seal member in the moving mechanism of FIG. 1;

FIG. 8 is a sectional view showing still another example of the seal member in the moving mechanism of FIG. 1;

FIG. 9 is a block diagram showing an example of an elevating mechanism in the moving mechanism of FIG.

FIG. 10 is a flowchart illustrating an example of a lifting operation in the moving mechanism of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Field 2 ... Natural lawn 3 ... Truss beam 4 ... Plate 5 ... Reinforcement rib 6 ... Buffer member 8, 18, 28 ... Seal Member 9 Air compressor 10 Inlet pipe 11 Exhaust pipe 12 Wheel mechanism 13 Wheel 16 Hydraulic cylinder 17 Rubber plate member 19 hinge 20 long plate 21 seal sheet 22 closing member 23 26 cleaning brush 25 filter 34・ Differential pressure detector 29 ・ ・ ・ ・ Control device 30a, 30b ・ ・ ・ Flow regulating valve 35 ・ ・ ・ ・ Floating amount measuring device 36 ・ ・ ・ ・ Traveling drive mechanism

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshiaki Isozaki 1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries, Ltd. Inside Akashi Plant (72) Inventor Shinichi Sugiyama 3-1-1, Higashi-Kawasaki-cho, Chuo-ku, Kobe-shi, Hyogo No. 1 Inside the Kobe Plant of Kawasaki Heavy Industries, Ltd. (72) Inventor Cho Hirakawa 8th, Niijima, Harima-cho, Kako-gun, Hyogo Prefecture Inside the Harima Plant of Kawasaki Heavy Industries, Ltd. (72) Inventor Kazuyuki Akimoto 2-11 Minamisuna, Koto-ku, Tokyo No. 1 Kawasaki Heavy Industries, Ltd.Tokyo Design Office (72) Inventor Shigemi Okada 2-1-1, Minamisuna, Koto-ku, Tokyo Kawasaki Heavy Industries, Ltd.Tokyo Design Office (72) Inventor Yasuo Shiino Chuo, Kobe, Hyogo Prefecture Kawasaki Marine Engineering Co., Ltd. 3-1-1 Higashi Kawasaki-cho, Ward

Claims (6)

[Claims] 1. A trolley, a skirt-shaped sealing member which is disposed continuously on a periphery of a bottom surface of the trolley to isolate a space below the trolley from the outside, and is provided at an appropriate position on the bottom surface. A heavy object moving mechanism, comprising: a plurality of vertically movable wheels; and air supply means disposed at appropriate locations on the bottom surface. 2. The heavy object moving mechanism according to claim 1, wherein the carriage constitutes a heavy object main body to be moved. 3. A plurality of support members are fixedly provided at appropriate places on the bottom surface, and the support members are configured to be in contact with a floor surface to support a structure above the floor member. 3. The heavy object moving mechanism according to claim 1, wherein the movable wheel is configured to be able to extend below a lower end of the support member when a possible wheel is lowered. 4. A differential pressure detector for detecting a differential pressure between an internal pressure of an isolated space below the upper structure and an external atmospheric pressure is provided, and the air supply means draws in air from the outside, and A control device, which is configured by an air compressor that exhausts air into an isolated space below the upper structure, and that can control a blowing amount of the air compressor based on a differential pressure signal detected by the differential pressure detector, is provided. The heavy object moving mechanism according to any one of claims 1 to 3, comprising: 5. The apparatus according to claim 1, wherein each of the wheels can be moved up and down by a hydraulic cylinder, and a pressure detector for detecting an internal pressure of the hydraulic cylinder is provided. The heavy object moving mechanism according to any one of claims 1 to 4, further comprising a control device configured to control an air supply amount of the air supply unit based on a pressure signal. 6. The heavy object moving mechanism according to claim 1, wherein a cleaning means for cleaning a road surface is disposed at least below one side of the truck on a forward side.