WO2011021740A1

WO2011021740A1 - Weight body conveying device

Info

Publication number: WO2011021740A1
Application number: PCT/KR2009/005206
Authority: WO
Inventors: 박정일; 김형오
Original assignee: 주식회사 제일엔지니어링
Priority date: 2009-08-19
Filing date: 2009-09-14
Publication date: 2011-02-24
Also published as: KR101114022B1; KR20110018967A

Abstract

Disclosed is a weight body conveying device, which includes: a lower fixing block (100) fixed to a base part and having a downward sliding surface (101) on a top surface with a downward slant to be lowered towards a front portion; an upper sliding block (200) having a downward sliding surface (210) on a bottom surface with a downward slant to be lowered towards a front portion correspondingly to the downward slant of the downward sliding surface (101) so as to be movably mounted along the downward sliding surface by an external force; an upholding jack device (300) mounted to the base part for extending in the vertical direction so as to lift or lower a weight body from or to the base; and an elastic restoring member acting on the upper sliding block to lift the upper sliding block along the downward sliding surface to be located at an upper position of the lower fixing block when the upper sliding block is not applied with the external force. According to the present invention, the operation in the device becomes efficient, and operation may be managed by the restoring member in the simple principle and structure without any additional advancing jack device. Furthermore, it is possible to reduce installation space or cost since the required capacity of the jack device may be reduced on the whole, increase the durability of the device since the concerns of damage to the device element itself, and reduce the cost and time required for conveying the weight body.

Description

Heavy weight conveying device

The present invention relates to a conveying apparatus that can be used to convey a heavy body such as a ship block or a bridge girder of a bridge.

As the bridge construction method used in the fabrication of bridges, an incremental launching method may be used. Figure 1 is a schematic conceptual diagram for explaining the continuous extrusion method. As shown, in the continuous extrusion method, the production site 4 is installed at the land portion behind one of the shifts 2 or the height of the girder temporary behind the bridge. In the fabrication site 4, the girder 10 constituting the bridge upper structure such as a concrete box girder or a steel box girder is manufactured for each segment. The girder parts produced for each section continue to be connected to the rear of the already made parts, and the girder parts already fabricated in the bonded state are extruded (pushed out) in the direction of the axial direction, that is, the pier 6 or the crosslinking angle. ).

However, the girder is a very heavy object, and in particular, such as a bridge, there is no ground on which the vehicle is to be driven, so it cannot be carried on the vehicle. Thus, there is a need for means to transfer girders to piers. In this continuous extrusion method, the girder is transported, and an extrusion device is installed on each pier or bridge angle (hereinafter referred to as both bridges and bridges), and an upper end of the bridge, and the girder is used by this extrusion device. There is an extrusion method that is pushed up (pressing) at a time and moved forward (forwarding) and then lowered.

2 shows a conventional extrusion apparatus for a continuous extrusion method. As an element of the conventional extrusion apparatus, the fixed block 50 is installed on the pier 6 and the alternating upper portion, and the sliding block 60 is installed on the upper inclined surface of the fixed block 50 so as to be slidable. In addition, the extrusion jack device 70 for advancing and retracting the sliding block 60 and the jack-like jack device 80 for lifting the girder 10 are also provided in the extrusion device.

In such a conventional extrusion apparatus, when the advancement jack apparatus 70 is extended (advanced) and the sliding block 60 is pushed forward, the sliding block 60 goes up the upper inclined surface of the fixed block 50. Accordingly, the girder 10, which is placed on the flat upper surface of the sliding block 60, moves forward with the sliding block 60 gradually. The girder 10, which is advanced while being raised, is stretched (raised) to support the jack jack device 80 for support. Subsequently, the advancing jack device 70 is reduced to retreat the sliding block 60 connected thereto, and the girder 10 is reduced to the lowering (falling) of the jack jack 80 for the pedestal 6a of the piers 6. Place it on the top. By performing these operations periodically and repeatedly, the girders 10 are hypothesized over the entire length of the bridge or road.

This extrusion method is a method in which the girder is advanced while pushing the girder along the inclined surface by the advancement jack device, and a slide pad made of a TEFLON layer is installed on the piers and the alternating bridge. This is an improvement over the traditional extrusion method in which the girder is extruded solely by sliding. That is, compared with the conventional extrusion method, the extrusion method as shown in FIG. 2 can solve problems such as pier conduction by friction, and has the advantage of being able to extrude more stably.

However, in the extrusion method of FIG. 2, since the fixed block 50 and the sliding block 60 are coupled to an inclined surface whose height (level) increases as it goes forward, the inclined surface of the girder 10 is transferred to the girder 10. You have to lift it up. Therefore, there is a disadvantage that too much force and sliding operation is not smoothly performed even when simply extruding horizontally. For example, the jack jack device 80 is only supported by lifting the girder (10) already lifted, the role of pushing forward while pushing up the girder (10) all the jack device for the advance 70 and the sliding block (60) Is performed by However, only a slight level of vertical component assigned by the inclined surface is used to lift the girder 10 through the advancement jack device 70. Therefore, the waste of the force of the advancement jack device 70 is severe, and as a result, the large-capacity jack device must be used, so that the whole extrusion device becomes too large, and the cost also increases.

In addition, since most of the force for overcoming the weight of the girder 10 acts as a horizontal force on the inclined surface, the sliding plate (Teflon layer) attached to the inclined surface of the fixed block 50 by the sliding block 60 This is easy to peel off or damage. If this problem occurs, as well as the girder 10 in the hypothesis, as well as the sliding block 60 and the advancement jack device 70 must be dismantled to replace the sliding plate of the fixed block cause the construction cost increases and delays in construction Becomes

The present invention developed to solve the above-mentioned problems of the prior art is an object of the present invention to provide a transfer device capable of efficiently transporting a heavy body such as a girder of a bridge or a block of a ship.

According to an aspect of the present invention, the present invention is to provide a weight transfer apparatus that can reduce the overall installation space by reducing the required capacity of the elements, such as jacks constituting the transportation device, and reduce the production and use costs It is done.

According to one aspect of the present invention, an object of the present invention is to provide a weight conveying device that can reduce the problem that the force used inefficiently damages the components in the device, thereby increasing the operating cost and working time.

The weight conveying device of the present invention for achieving the above object,

A lower fixing block 100 fixed to the base part and having a downward sliding surface 101 that forms a downward slope in which the level is lowered toward the front surface;

An upper sliding block having a downward inclined surface 210 that forms a downward slope in which the level is lowered toward the front so as to correspond to the downward slope of the downward sliding surface 101 on the lower surface so as to be movable along the downward sliding surface by external force ( 200);

A jack jack device 300 capable of lifting or lowering the weight on the base by stretching in the vertical direction; And

And a return mechanism that acts on the upper sliding block and raises the upper sliding block along the downward sliding surface to reach the upper position of the lower fixed block in spite of the gravity caused by the upper sliding block itself.

At this time, the return mechanism in the present invention is fixed to the upper sliding block and the other side of the upper sliding block, one side is directly or indirectly connected to the upper sliding block, the other side is fixed relative to the base portion, the upper sliding block is in the upper position of the lower fixed block It becomes an elastic return mechanism having an elastic body that deforms according to the distance traveled with respect to the base when there is.

In the present invention, at least one surface of the downward sliding surface 101 of the lower fixing block 100 and the downward inclined surface 210 of the upper sliding block 200, the sliding plate to facilitate the sliding motion of the upper sliding block ( 250 may be installed, and the cloud member 700 may be installed on one of these two surfaces.

In the present invention, the lower sliding block 100, the front end of the downward sliding surface has a projection corresponding to the anti-skid jaw, the projection is provided with a buffer port 800 for mitigating the impact when the front of the upper sliding block collides Can be.

The weight conveying apparatus of the present invention can be used for girder conveyance for the bridge continuous extrusion method. In this case, the foundation may be the upper end of the bridge pier and / or the bridge rear ground at the same level as the upper end, and the lower fixing block and the upper sliding block are paired and have a constant distance in the required number depending on the weight of the entire girder. A plurality may be installed for each.

In the present invention, when the jack jack device 300 installed in the base unit lowers the weight body, the weight body may be placed on the upper surface of the upper sliding block, but the support unit is installed to support the weight body (girder) separately It can also be placed on the bridge support at the top of the bridge.

According to the present invention, the weight of the weight is placed on the upper sliding block located at the high point of the downward sliding surface of the lower fixed block by first lifting the weight upright and vertically by using the jack jack device. Due to the downward inclination angle of the sliding surface and the weight body and the upper sliding block is moved forward naturally, the operation is efficient.

In addition, since the upper sliding block can be automatically returned to the initial position of extrusion by the return device (return structure) using an elastic body, it is possible to operate without a separate jack jack for advancing. Since it is used only to lift the weight, it is possible to reduce the overall capacity of the jack device as compared to the conventional jacking device that had to push up the upper sliding block against the slope while carrying the weight of the weight. Can be reduced.

In addition, as the efficiency increases, the durability of the device may be increased by reducing the risk that the device element itself may be damaged by the force used inefficiently, and the cost and weight required for installation and operation of the device are required. Cost and time to be reduced.

1 is a schematic view showing a bridge configuration in order to explain the continuous extrusion method.

2 is a configuration diagram showing a configuration of an example of a conventional synchronous extrusion apparatus.

Figure 3 is a block diagram showing the configuration of an extrusion apparatus according to a first embodiment of the present invention.

4 and 5 are longitudinal cross-sectional views in side view showing in detail two states of the return means used in the first embodiment of the present invention.

Fig. 6 is a cross sectional plan view showing an example of the return means used in the first embodiment of the present invention.

7 to 10 are operation conceptual diagrams showing in sequence the steps of the operation of the extrusion apparatus according to the first embodiment of the present invention.

11 is a configuration diagram showing the configuration of an extrusion apparatus according to a second embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

In the embodiments described below, the "entry direction" means the direction in which the weight moves. The term 'forward' and 'forward' means the direction in which the weight moves (extrusion direction), and 'forward' means the motion in which the weight moves, and the term 'rear', 'back' and 'retreat' Respectively means its opposite direction and its operation in that direction.

Figure 3 shows the girder extrusion device for bridge production as an embodiment for the weight conveying apparatus of the present invention.

As shown, the girder extrusion apparatus for the continuous extrusion method of the bridge, for pushing the girder 10 forward in the axial direction (entry direction) on the lower structure of the bridge, such as the bridge (6), The lower fixed block 100 is installed on the upper, the upper sliding block 200 and the girder 10 which is seated in a state capable of sliding by the sliding surface forward and downward on the upper surface of the lower fixed block 100, A jack jack device 300 for lifting or lowering, and a return mechanism for returning the upper sliding block 200.

In the present embodiment, when the upper sliding block 200 is placed at the high point of the lower fixing block 100, the girder 10 lifted up through the pressing jack device 300 is placed on the upper surface of the upper sliding block 200. The upper sliding block 200 under the weight of the girder 10 automatically slides down and down along the inclined surface of the lower fixing block 100 so that the girder 10 is extruded (transferred) forward.

In this embodiment, the force of the jack jack device 300 for raising the girder 10 is used only to push up the girder 10 completely. Therefore, the capacity of the output or power that the jack device has to pay for normal operation can be reduced compared to the prior art. The upper sliding block 200 on the lower fixing block 100 has a structure that is moved by the sliding surface forward downwards by the weight of the girder 10, the upper sliding block 200 is automatically transferred or with a small force It was made possible.

Referring to the configuration of the extrusion apparatus of this embodiment in more detail as follows.

The lower fixing block 100 is installed on the upper surface of the lower structure, such as the piers (6). 'Fixed' means that the upper sliding block is not moving compared to the movement during the extruder operation. It is not necessary to be fixed to the lower structure by bolts or the like, but it is preferable to be detachably fixed for stability during operation.

The upper surface thereof is formed with a downward sliding surface 101 whose height is lowered toward the front. The upper sliding block 200 has a downward inclined surface 210 corresponding to the downward sliding surface 101 of the lower fixed block 100 on the lower surface, so that the downward inclined surface 210 is a downward sliding surface of the lower fixed block 100 ( 101) is seated in a state capable of sliding.

Here, the downward sliding surface 101 of the lower fixing block 100 and the downward inclined surface 210 of the upper sliding block 200, by the weight of the girder 10, the upper sliding block 200 by itself (automatically) By having a slope and a friction coefficient to allow the sliding down, the girder can be transported forward without any external help (force action) such as a conventional jacking device.

Even if it does not slide automatically, the downward slope allows the girder to move forward with a small force. Being transported with a small force means adding a device as part of the extrusion device, such as the entry jack device of Figure 2, which can add a minimum of pushing force to actually move the natural sliding force. . In this case, the added force is so small that the output capacity or installation volume of the advancing jack device is reduced by that much.

The jack jack device 300 may be installed on the upper surface of the pier 6, which is a lower structure, and operated by various driving sources such as hydraulic pressure (or pneumatic pressure). It is stretched up and down by operating only by the hydraulic pressure by way of example) and lifts the girder 10 from the upper sliding block 200 or lowers it to the upper sliding block 200. The fixed end 310 of the pin jack jack 300 is fixed to the lower structure and the movable end 320 is stretchable in the vertical direction.

In order to facilitate the sliding operation of the upper sliding block 200 with respect to the lower fixing block 100, the downward sliding surface 101 of the lower fixing block 100 and the downward inclined surface of the upper sliding block 200 ( The sliding plate 250 may be provided on at least one surface of the surface 210, that is, on one surface or both surfaces. The sliding plate 250 serves to protect the sliding surface of the blocks as well as the sliding movement of the lower fixing block 100 and the upper sliding block 200 is made smoothly. The sliding plate 250 may be formed by coating the sliding surface, but in consideration of durability and replaceability, a plate manufactured separately from the block is usually attached to the sliding surface by using a bonding means such as an adhesive or a bolt. In this case, when the sliding surface is damaged, only the sliding plate 250 needs to be replaced. The sliding plate 250 may be made of various materials, such as metal and plastic, and preferably uses 'TEFLON'.

In the present embodiment, the return mechanism extends from the rear end of the upper sliding block 200 to form a connecting line 600, the connecting line 600, the upper sliding block 200 to the lower sliding surface of the lower fixed block 100 It is made by connecting one end of the tension coil spring 500 having an elastic force that can be drawn back (101).

4 and 5, the tension coil spring 910 is installed in this space to provide a space for installation and extension in the lower sliding surface lower portion of the lower fixing block 100 in order to save the mounting space. The connecting line 600 is here connected to the rear end of the tension coil spring 910. Two fixed pulleys 610 or rollers are used for the transfer and direction of the force through the connecting line. That is, the connecting line connected to the rear end of the upper sliding block enters the space installed in the lower fixing block through the pulley formed at the rear and the upper end of the lower fixing block and the lower fixing block, and is connected to the rear end of the tension coil spring 910. The front end of the tension coil spring 910 is fixed to the front end plate surface provided at the front end of the lower fixed block (100).

More specifically, the rear end of the tension coil spring to which the connecting line 600 is connected is fixed to a separate moving plate surface 920 that is movable in the elongation space formed in the lower fixing block. The moving plate surface 920 is moved within a limited distance (extension space) by the front and rear jaw portions defining the upper and lower widths of the extension space serving as a passage. There is a hole in the center of the moving plate surface 920, guided by a guide bar 930 passing through the hole.

Guide bar 930 is installed to pass through the tension coil spring and the moving plate surface serves to guide their movement. The front end of the guide bar 930 is fixed to the front plate surface is fixed to the front end of the tension coil spring, the rear end may be fixed to a portion of the rear wall of the lower fixing block, or may not be fixed separately.

Tensile coil springs installed in the space of the lower fixing block in order to increase the elastic coil spring elasticity can be increased in the horizontal installation number or vertically installed number as shown in FIG. In this case, the plurality of tension coil springs may act in parallel with each other to exert an elastic force doubled by the number of elastic coil springs. Here, the connection line 600 is suitable to be coupled to the moving plate surface 920 rather than directly connected to the tension coil spring 910, it can be installed in plurality in order to distribute the force, according to the pulley 610 or roller It can be installed in the plurality in the width direction corresponding to it, or installed to increase the width to handle a plurality of connecting lines together.

In the above embodiment, the tension coil spring is mainly embedded in the space of the lower fixing block, but in the embodiment shown in FIG. 3, instead of the connecting line, an elastic means such as a tension coil spring is connected to the rear end of the upper sliding block. The other end of the tension coil spring fixed to the bridge support 8 can also be considered sufficiently.

In an embodiment having such an elastic return means, when the upper sliding block is advanced downward by the weight of the girder, and the jack jack device lifts the girder, the tension spring 910 'extended as the upper sliding block moves. The restoring force acts to return the upper sliding block to the high point of the downward sliding surface. In this case, the tension spring 910 may also act as a shock absorber in the process of the upper sliding block is down-charged.

Again, a description will be given of the action performed throughout the extrusion apparatus of this embodiment.

When the girder 10 is lifted from the upper sliding block 200 by the jack jack device and the upper sliding block 200 becomes free without receiving the weight of the girder, the upper sliding block is slid by the elastic restoring force of the tension coil spring 910. The block 200 moves up to the high point by going up the downward sliding surface 101 of the lower fixed block 100.

In the lower fixing block 100, the front end of the downward sliding surface is provided with a protrusion 102 corresponding to the non-slip jaw, the buffer hole 800 is installed on the surface in which the protrusion and the upper sliding block. The buffer port 800 serves to stop the upper sliding block 200 is buffered at the end of the sliding process of the sliding process. The shock absorber 800 may be formed in various forms, such as a known rubber, felt, or pneumatic cylindrical shock absorber. The rear portion of the lower fixing block 100 may further include a locking step 103 for restricting movement to the rear side of the upper sliding block 200, although not shown, the cushioning material is also installed in the locking step 103 Can be.

On the bridge 6, i.e. on the substructure, there is shown a bridge or bridge bearing 8 (hereinafter all of which are referred to as bridge bearings), in which the extrusion device of the present embodiment has a bridge bearing 8 at the beginning of the bridge construction. It can be installed anywhere or with or without bridge feet (8). For example, the extrusion apparatus of the present embodiment, if there is a bridge support (8), the lower fixing block 100 and the upper sliding block 200 set on the lower structure adjacent to the bridge support (8) and jack jack device 300 It is made of a convenient structure that simply sticks on top of it. If the top plate needs to be replaced to reinforce the existing bridge, the existing bridge is naturally provided with the lower structure and the bridge support (8), this embodiment is to dismantle the existing bridge (6) and bridge support (8) It can be used as it is without changing.

Hereinafter, the extrusion process using the extrusion apparatus of the present embodiment will be described with reference to FIGS. 7 to 10.

First, as shown in FIG. 3, when the upper sliding block 200 is placed at the bottom of the downward sliding surface 101 of the lower fixing block 100, that is, the front lower portion, the girder is placed on the upper sliding block 200. (10) is placed on the state, that is, the upper sliding block 200 and the lower fixed block 100 is a state supporting the girder 10. At this time, the movable end 320 of the jack jack device 300 is spaced apart from the girder 10 in a contracted state.

In this state, as shown in FIG. 7, when the movable end 320 of the jack jack device 300 is extended to lift the girder 10, the girder 10 is spaced apart from the upper sliding block 200. The upper sliding block 200 is free from the load of the girder 10.

Then, the tension coil spring 910 is pulled the upper sliding block 200 through the connecting line 600 while the length is reduced by the elastic restoring force in the elongated state as shown in Figure 5, the upper sliding block 200 is fixed lower The downward sliding surface 101 of the block 100 is slid in the direction of movement up to the high point of the downward sliding surface 101 so that the extrusion apparatus is in a state as shown in FIG. 8, and the tension coil spring 910 'is shown in FIG. It is in the same state as 4.

Subsequently, as illustrated in FIG. 9, the movable end 320 of the jack jack device 300 is contracted and placed on the upper sliding block 200. When the load of the girder 10 acts on the upper sliding block 200, the upper sliding block 200 is seated on the downward sliding surface 101 whose downward inclined surface 210 is inclined forward and downward, so that the girder 10 The vertical load acting on the upper sliding block 200 by the weight of) is a component of the force in two directions, vertical and horizontal, with respect to the downward sliding surface 101 by the downward sliding surface 101 and the downwardly inclined surface 210. Can be divided into Among them, the component of the horizontal force moves the upper sliding block 200.

Therefore, as shown in FIG. 10, the upper sliding block 200 is easily and naturally moved forward and downward of the lower fixing block 100 while supporting the girder 10. At this time, the tension coil spring 910 is pulled again by the movement of the upper sliding block 200 is changed to the elongated state as shown in FIG. After the transfer (extrusion) of the girder 10 is completed by one cycle, the cycle from FIGS. 7 to 10 is repeated again.

As described above, in the extrusion apparatus of the present embodiment, the jack jack device 300 only needs to lift the girder 10 in the vertical direction, and the girder 10 slides forward by itself by its own weight and thus the girder 10 It does not require a separate device to push the front forward. In addition, since excessive force does not act on the downward sliding surface 101 and the downwardly inclined surface 210, or the sliding plate 250 which are in sliding contact with each other, it is not easily damaged, thereby further extending the service life of the extrusion apparatus. The burden of maintenance is also reduced.

(Example 2)

11 shows an extrusion apparatus according to a second embodiment of the present invention. Extrusion apparatus according to this embodiment is a rolling member 700 in place of the sliding plate 250 on the downward sliding surface 101 of the lower fixed block 100 and the downward inclined surface 210 of the upper sliding block 200 in the previous embodiments. ) Is different and the rest of the configuration is the same.

That is, the extrusion apparatus according to the present embodiment, the rolling member 700 on any one of the downward sliding surface 101 of the lower fixed block 100 and the downward inclined surface 210 of the upper sliding block 200. It is a configuration installed. The rolling member 700 is to make the sliding of the upper sliding block 200 more smoothly.

In this embodiment, the cloud member 700 is shown in the form provided only in the downward sliding surface 101 of the lower fixed block 100, but may be provided in the upper sliding block 200 without being limited thereto. . The rolling member 700 may employ various forms such as a roller, a needle roller, a ball, a tire wheel, and the like. Such a rolling member 700 is typically installed in a state coupled to the support device 710, as shown in FIG. As the support device 710, a structure such as a known bearing retainer may be used. The support device 710 holds and supports the rolling member 700 so as not to escape while maintaining and protecting the rolling member 700 in a rollable state.

When the cloud member 700 is installed in the lower fixing block 100, as illustrated, the sliding plate 250 may be installed in the upper sliding block 200. The sliding plate 250 serves to prevent damage to the downward inclined surface 210 and the cloud member 500 of the upper sliding block 200, so that only the sliding plate 250 needs to be replaced even during the replacement.

In the above embodiments, the girder extrusion device for the continuous extrusion method, except for the conventional way of pushing out the girder by pushing the girder by the advance jack device, and first lift the girder vertically by the jack jack device. When put down, it is automatically transferred forward by the weight of the girder, and by the restoring force of the elastic body, the upper sliding block returns to the rear high point of the lower fixing block, thus providing a very effective and easy extrusion method.

Therefore, when the extrusion apparatus is applied to a method of continuously extruding the upper structure (girder) during the road or bridge construction as in the above embodiments, the extrusion of the girder is very easy, and the process can also be made stably. Has an advantage.

In the above described the application mainly to the extrusion method of the road or bridge in the extrusion method of the present invention, the present invention can be applied to all types of civil engineering and construction work to advance the structure while connecting continuously. For example, in the construction of the 'underwater bridge' or 'floating bridge' disclosed in the Republic of Korea Patent Registration No. 0797795, 0797796 and Republic of Korea Patent Application No. 2007-0108891 by the continuous extrusion method to extrude the bridge body Easy to apply

In addition, the present invention can be used to convey a flat and even weight throughout the heavy and lower surface in the conveying direction, such as bridges or road girders. Thus, in the context of the present invention, the foundation on which the block or jack device is installed may be the ground or the road itself in addition to the substructure of the bridge, such as a bridge or alternator. If the weight is long and heavy, or the transport distance is long, the lower fixed block, the upper sliding block set and the jack jack device of the present invention should be installed in a large number along the direction of travel. Will be installed every time.

As a weight related to the present invention, an upper structure such as a girder of a bridge, a block of a ship, a pedestal on which a small ship itself is placed, and a submerged ship (tunnel structure) of an immersion method tunnel can be considered. It can be applied to slopes that are suitable but have a weak slope. In addition, although the linear direction is most suitable for the conveying direction, for example, the lower fixing block, the upper sliding block, and the jack jack device are installed in two rows on the left and right sides based on the traveling direction, and only the left and right middle center rows are driven. And the left column may be a direction change within a small range, such as turning the weight to the left in a way that does not drive.

On the other hand, when operating a plurality of lower fixing block, upper sliding block, a jack jack set, it is necessary to be connected and adjusted by a communication line so that they can be moved at once, such operation is a construction equipment, heavy equipment having a plurality of execution stages Since the existing execution can proceed using a computer program for operation and communication means, a detailed description will be omitted.

In the above, specific embodiments of the present invention shown in the accompanying drawings have been described in detail, but these are merely illustrative of the preferred embodiments of the present invention, and the scope of protection of the present invention is not limited thereto. In addition, the embodiments of the present invention as described above can be variously modified and equivalent other embodiments by those of ordinary skill in the art within the technical spirit of the present invention, such modifications and equivalent other embodiments are naturally It belongs to the appended claims of the present invention.

The present invention can be used to transport a flat, even weight throughout the heavy and lower surface in the conveying direction, such as bridges or road girders. In particular, it can be applied with many advantages in the civil engineering and construction work in the form of advancing the structure in succession.

Claims

A lower fixing block 100 fixed to the base part and having a downward sliding surface 101 that forms a downward slope in which the level is lowered toward the front surface;

An upper sliding surface having a downward inclined surface 210 which forms a downward inclined surface which is lowered toward the front so as to correspond to the downward slope of the downward sliding surface 101 to move downward along the downward sliding surface by external force. Block 200;

A jack jack device 300 capable of lifting or lowering the weight on the base by stretching in the vertical direction; And

And a return mechanism that acts on the upper sliding block and raises the upper sliding block along the downward sliding surface in spite of the gravity of the upper sliding block itself to reach an upper position of the lower fixed block.

The return mechanism 400 is fixed to a portion different from the upper sliding block, one side is directly or indirectly connected to the upper sliding block and the other side is fixed relative to the base portion, the upper sliding block is the lower fixing block Weight transfer device, characterized in that the elastic return mechanism made of an elastic body that deforms according to the distance traveled relative to the high point position of the.
The method of claim 1,

A sliding plate 250 is provided on at least one surface of the downward sliding surface 101 of the lower fixing block 100 and the downward inclined surface 210 of the upper sliding block 200 to smoothly slide the upper sliding block. Weight transfer device, characterized in that installed.
The method of claim 1,

Heavyweight conveying device, characterized in that the rolling member 700 is installed on one surface of the downward sliding surface 101 of the lower fixing block 100 and the downward inclined surface 210 of the upper sliding block 200.
The method of claim 1,

An anti-slip jaw is provided at the front end of the lower sliding block 100 of the lower fixing block 100, and the anti-slip jaw is provided with a buffer port 800 for mitigating an impact when the front part of the upper sliding block collides. Weight transfer device.
The method of claim 1,

The base is the upper end of the bridge pier and / or bridge rear ground at the same level as the upper end,

The weight becomes a girder of the bridge,

Weight transfer device, characterized in that used for the girder transfer for the bridge continuous extrusion method.