JPS5857563B2 - Methods and devices for moving long heavy objects such as bridges - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for moving a long heavy object such as a bridge, which can be moved by a delivery roller.

Conventionally, when moving bridges or other long heavy objects, it is necessary to suspend and move the heavy object using a powerful mobile crane, or load the heavy object on rollers, etc., and pull the heavy object in the direction of movement using a winch, etc. I was moving it around.

However, the former method requires a large-scale crane, which limits the construction site and also poses a cost problem.

The latter means can only be moved on a flat surface and has the problem that the moving process is complicated.

Therefore, in recent years, as shown in Fig. 1, one set of push-up hydraulic jacks 31 and 32 has been developed, one of which is fixed and the other of which is 1 m.
The other jack 32 lifts a long heavy object B such as a bridge and slides it forward by a certain amount, and the other jack 31
A method has been invented in which the heavy object B is moved by supporting the object B with the support, and then moving the other jack 32 backward, supporting the object B again, and moving it forward.

However, in this method, the heavy load B is propelled by a series of pulsations of 5 advances, stops, and retreats, with each set of devices (jacket 32) moving up and down by the slide length, which wastes power and is extremely Not only is it not easy to work with, it also poses a safety problem as it does not cause physiological discomfort to workers.

With the above points in mind, this invention solves the problems of workability and safety for long heavy objects such as bridges by sending out and moving heavy objects using a sending roller rotated by a hydraulic motor or the like. The present invention aims to provide a transportation method and a device therefor.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings showing embodiments thereof.

Method for moving a long heavy object such as a bridge according to the present invention &L When moving a long heavy object such as a bridge, a vertical guide roller separated by the width of the heavy object and a vertical guide roller provided between the two guide rollers are used. A feeding device is composed of a long heavy object feeding roller rotated by a hydraulic motor, etc., and these feeding devices are arranged at intervals of the length of the heavy object, and the front part of the heavy object is connected to the feeding roller of the nearest feeding device. By placing guide rollers on both sides of the heavy object and rotating the sending roller, the heavy object is sent out toward the forward sending device, and the next heavy object is connected to the delivered heavy object. In the next delivery device, the heavy objects are sent out by the same action as described above, and thereafter, the above-mentioned action is performed in all the sending devices into which the heavy objects have been fed, so that the heavy objects are sent out one after another.

Although various structures are conceivable for the above-mentioned feeding device A, for example, it has the following structure.

That is, as shown in FIGS. 2 to 5, two
Mounting stands 2 are provided so as to be able to be moved toward and away from each other via rollers 3, and each mounting stand 2 is provided with a hydraulic jack 4 in the vertical direction.

As shown in Fig. 2, if oil can be freely injected between the base 1 and the mounting base 2 through the oil hole 5, and the mounting base 2 can be placed in a floating state with respect to the base 1 via the oil, the mounting base 2 can be moved. becomes smooth.

A hemispherical support part 7 is formed on the upper surface of the hydraulic jack 40 plastic/jar 6, and a hemispherical support stand 8 is fitted into this support part I, and the support stand 8 is rotated horizontally and vertically. Freely move the head (swing freely).

Oil can also be freely injected between the support part 7 and the support base 8, so that the support base 8 can move smoothly.

The support base 8 is provided with a horizontal feed-out roller 9 in the direction of both the mounting bases 2, and a vertical guide roller 10 is provided on the outer upper part of the support base 8.

The number of rollers 9 and 10 is arbitrarily selected, and both bearings are used so that they will not be damaged even if a long heavy object B such as a bridge is placed thereon or a rocking force is applied.

The feed roller 9 is rotated by a drive device 12 such as a hydraulic motor via a deceleration mechanism 11.
As a result of the rotation, the heavy object B placed on the roller 9 is sent out.

Both mounting bases 2 are connected by a hydraulic or electric joint jack 13, as shown in FIGS. 4 and 5, and the distance between them can be set arbitrarily.

That is, this jack 13 allows the distance between the guide rollers 10 on both sides to correspond to the width of the heavy object B.

Furthermore, one of the mounting bases 2 is equipped with a lateral feed jack 14, and this jack 14 moves both of the integrated mounting bases 2 in the lateral direction (horizontal direction), absorbing bending etc. of the heavy object B and smoothing it. send to.

In addition, 15 in the figure is an oil introduction hole of the hydraulic jack 4.

When moving the heavy object B in a straight line, it is sufficient to connect the heavy object B by a simple means that allows it to swing slightly from side to side, up and down.
When moving in a curved manner and constructing the structure, as shown in Fig. 6, both heavy objects B are connected so as to be swingable in the horizontal direction by the connecting plate 16 (Fig. C), and a A jack 17 is provided so that the relative angle between the two can be arbitrarily set by expanding and contracting the jack 17.

The jack 17 can be of any type, such as hydraulic or electric.
The installation location may be either on both sides, on the top surface, or only on the top surface; in short, any structure is acceptable as long as the angle can be set arbitrarily and the structure can be fixed.

The moving method of the present invention is carried out by the apparatus having the structure described above, and its operation will be described below.

When constructing a bridge B on a pier C as shown in FIG.
Set the width to .

After that, as shown in Figure A, the front part of the bridge B is placed on the roller 9 of the delivery device A closest to you, and the guide rollers 10 are placed on both sides of the bridge, and the delivery roller 9 is rotated. The bridge B is sent out toward the sending device A in front of it, and the next bridge B is connected to the sent out bridge B, and as shown in the same figure, the same effect as described above is also applied to the next sending device A. Bridge B is sent out with , device A
The bridge B is fixed to the pier C, and the construction is completed.

The bridge B may be connected before moving as shown in the figure, or may be performed as it is being sent out.

The rotational speed of the roller 9, that is, the feeding speed is appropriately selected depending on the site environment, the structure of the bridge B, etc.

When the direction of movement is linear, the above action allows the bridge to travel smoothly, but when the direction of movement is curved as shown in Figure 8, the bridge B is shaken by the structure shown in Figure 6. It is movable and the relative angle can be set arbitrarily.
As shown in Figure a, the bridge B is sent out by the nearest sending device A, and while one bridge B is being sent out, each jack 17 is expanded or contracted to make the front part of the bridge B correspond to the next sending device A. As shown in Figures 8 to d, each sending device A is further driven to send out the bridge B, and thereafter, the above operation is performed by all the devices A into which the bridge B was sent, and the bridge B is sent out one after another. good.

When the above-mentioned bridge B is sent out, the bridge B is bent and curved (
If there is any twist or deflection, it is absorbed by the rotation of the support stand 80 and the drive of the lateral feed jack 14, and the bridge B
to be sent out smoothly.

The jack 14 may be driven by detecting the pressure contact force on the guide roller 10 and based on the detected value, or the jack 14 may be driven automatically when the roundness is known in advance.
4 may be driven.

Furthermore, as shown in FIG. 9, after connecting the hydraulic circuit of the jack 4 to all the feeding devices and setting the height of the support stand 8, the main pulp 19 to the hydraulic unit 18 should be closed. , since the pressing force of the bridge B to the roller 9 of device A is constant, the stroke of the plunger 6 of each device A is automatically adjusted within the overall balance, and a uniform load is applied to each pressing part. As well as the driving force being transmitted, the vertical movement of the bridge B is absorbed, allowing for smooth delivery.

At that time, if the position of the plunger 6 in the normal supported state is set to 1/2 of the average of the entire stroke, it can fluctuate by the same amount vertically, and the vertical stroke limit of the plunger 6 is The setting is made so that the plunger 6 does not move up and down too much and the bridge B does not tilt more than necessary.

Furthermore, in the embodiment, since the paper is sent out by the delivery rollers 9 on both sides, the meandering of the bridge B can be corrected by changing the number of rotations of both rollers 9.

At that time, if the horizontal push jack 14 is operated, a more effective correction effect can be obtained.

In the above embodiment, the gauges and control system that show the live data of all equipment A are concentrated in one unit, and the bridge B
Attach a sensor to the appropriate location to read the movement width (sway) of the
If a control circuit is provided that commands the height of the plunger 6 and the number of rotations of the roller 9 in accordance with the shape of the lower surface of the bridge B during movement, centralized control and semi-automatic or full automation are possible.

Note that the heavy object B applied to the present invention is not limited to bridges built over rivers, oceans, etc., as in the embodiments, but any long heavy objects such as bridges on expressways etc. may be used. Of course.

As described above, according to the method for moving a long heavy object of the present invention, when moving a long heavy object such as a bridge, vertical guide rollers separated by the width of the heavy object, and both guide rollers are used. A feeding device is composed of long heavy object feeding rollers provided at both ends of the gap and separately rotated by hydraulic motors, etc., and these feeding devices are arranged in the feeding direction at intervals of the length of the heavy object, and the weight By placing the front part of the object on the feed roller of the nearest feed device, and applying guide rollers to both sides of the object, and rotating both feed rollers separately, the weight is moved toward the front feed device. At the same time as sending out the object, the next heavy object is connected to the delivered heavy object in sequence, and the next feeding device also sends out the heavy object by the same action as above. Since the heavy objects are sent out one after another by all the sending devices, the long heavy objects can be moved smoothly and safely without pulsation while correcting the meandering.

In addition, the next heavy object is connected to the delivered heavy object so that it can swing in the horizontal direction, and a jack is provided between the connected parts, so that the relative angle between the two can be set arbitrarily by expanding and contracting the jack. During feeding of a heavy object, the front part of the heavy object is made to correspond to each roller of the next feeding device by the expansion and contraction of the jack, and each feeding device is further driven to send out the heavy object, and the above action is performed by the heavy object. If the heavy objects are sent out one after another using all the feeding devices that have been installed, it is possible to move the heavy objects smoothly and safely in a curved manner.

Furthermore, the base is provided with two mounting stands that can be moved toward and away from the base, each mounting stand is provided with a vertical hydraulic jack, and a spherical support part is formed on the upper surface of the plunger of this hydraulic jack. A support stand that can be rotated horizontally and vertically is fitted into the support stand, and a bridge delivery roller that is rotated by a hydraulic motor or the like is installed on the support stand, and a vertical guide roller is installed on the upper part of the outside of the support stand. If the feeding device is constructed by moving the mounting base to accommodate the width of the long heavy object with the distance between the guide rollers, the above-mentioned method for moving the heavy object can be easily carried out, and the heavy object can be moved smoothly and safely. You can go to

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of a conventional method for moving a long heavy object; FIGS. The figure is a front view of the sending state by the moving method of the present invention, Figures 6a to 0 are state diagrams of the connecting parts of heavy objects, and Figures 1a to 0 are respectively the movement of the bridge by the moving method of the present invention. The explanatory diagrams, FIGS. 8A to 8A, are explanatory diagrams when the bridge is moved in a curved shape, respectively, and FIG. 9 is a hydraulic circuit. A... Delivery device, B... Long heavy object/bridge, C
... Pier, 1... Base, 2... Mounting base, 4...
Hydraulic jack, 6... Plunger, 7... Support part, 8... Support stand, 9... Delivery roller, 10...
・Guide roller, 12...Driver, 13...Joint jack, 14...Transverse feed jack, 16...
Connecting plate, 17... jack.

Claims (1)

[Claims] 1. When moving a long heavy object such as a bridge, vertical guide rollers separated by the width of the heavy object and hydraulic motors etc. provided on both sides between the two guide rollers are used to move a long heavy object such as a bridge. A feeding device is composed of long heavy object feeding rollers that are rotated separately, and these feeding devices are arranged in the feeding direction at intervals of the length of the heavy object, and the front part of the heavy object is fed out by the nearest feeding device. By placing the heavy object on the roller and placing guide rollers on both sides of it and rotating both feed rollers separately, the heavy object is sent toward the forward sending device, and the next heavy object is placed on the conveyor. Then, in the next delivery device, the heavy object is sent out by the same action as described above, and thereafter, the above action is performed in all the delivery devices to which the heavy object has been sent, so that the heavy object is sent out one after another. Features: A method for moving long heavy objects such as bridges. 2. The method for moving a long heavy object such as a bridge according to claim 1, wherein the feed rollers and guide rollers of each of the feed devices are vertically movable by hydraulic cylinders. 3. The method for moving a long heavy object such as a bridge according to claim 2, characterized in that the hydraulic cylinders of each of the sending devices are communicated with each other. 4. When moving a long heavy object such as a bridge, a vertical guide roller separated by the width of the heavy object and a long heavy object delivery roller provided between the guide rollers and rotated by a hydraulic motor etc. These feed out devices are arranged in a curved manner at intervals of the length of the heavy object, and the front part of the heavy object is placed on the feeding roller of the nearest feeding device, and guide rollers are placed on both sides of the feeding device. By rotating the delivery roller, the heavy object is sent out toward the delivery device in front, and on the other hand,
The next heavy object is connected to the delivered heavy object so that it can swing in the horizontal direction, and a jack is provided between the connected parts so that the relative angle between the two can be set arbitrarily by expanding and contracting the jack. During feeding, the front part of the heavy object corresponds to each roller of the next feeding device by the expansion and contraction of the jack, and each feeding device is further driven to feed the heavy object, and the above action is performed until the heavy object is fed. A method for moving a long heavy object such as a bridge, characterized in that all the sending devices are used to sequentially send out the heavy objects. 5. The method for moving a long heavy object such as a bridge according to claim 4, wherein the feeding rollers of each of the feeding devices are provided on both sides so that both rollers can be rotated separately. 6. The method for moving a long heavy object such as a bridge according to claim 4 or 5, wherein the feed rollers and guide rollers of each of the feed devices are vertically movable by hydraulic cylinders. 7. The method for moving a long heavy object such as a bridge according to claim 6, characterized in that the hydraulic cylinders of each of the sending devices are communicated with each other. 8. The base is equipped with two mounts that can be moved toward and away from the base, each mount is provided with a vertical hydraulic jack, a spherical support is formed on the top surface of the plunger of this hydraulic jack, and a spherical support is formed on the top of the plunger of the hydraulic jack. A support stand that can be rotated horizontally and vertically is fitted, and a bridge feed roller that is rotated by a hydraulic motor or the like is provided on the support stand, and a vertical guide roller is provided on the upper part of the outside of the support stand, and both of the above-mentioned attachments are installed. A device for delivering a long heavy object such as a bridge, which allows the distance between both guide rollers to correspond to the width of the long heavy object by moving the platform.