KR100367028B1 - A self propelled working platform for construction and maintenance of bridge - Google Patents

Abstract

The present invention relates to a self-propelled work platform suitable for the construction and maintenance of the bridge leading to the reinforced concrete structure so that the bridge body that is placed on the bridge to form a body with the bridge.

The present invention is fixed to the hoist support boom 16 including a guide rail 14 on which the hoist 12 is suspended on the chassis 10 having four or more driving wheels 28 connected to the driving motor 36, The fixed mast 18, which is connected to the movable mast 20 and a conventional rotary device, is fixed to one side of the hoist support boom 16, and the material transport carts 24 and 24 'and the movable work development assembly 26 are fixed. It is a self-propelled work bench for both construction and maintenance of a bridge in which one side of the movable boom 22 including the) is fixed to the lower side of the movable mast 20.

The present invention can move various materials for bridge construction and various equipment for bridge maintenance while moving on the bridge body itself from the bridge body side to the bridge side or from the bridge side to the bridge body to secure the construction and maintenance of the bridge. Yet, there is an advantage that can be carried out quickly, accurately and efficiently.

Description

A self propelled working platform for construction and maintenance of bridge}

The present invention relates to a self-propelled work bench for both construction and maintenance of a bridge, and more specifically, a self-propelled work bench suitable for construction and maintenance of a bridge leading to a reinforced concrete structure such that a bridge body placed on the bridge forms a body with a bridge. It is about.

In general, bridge work benches can be divided into bridge construction and maintenance for each purpose. In the conventional bridge work benches, a large number of temporary members are used because the temporary work benches are assembled around the bridge to be constructed as independent fixed structures. It was not necessary for the maintenance of the bridge, because it took much time and manpower to assemble and dismantle, as well as to be removed after the bridge was completed.

Conventional bridge maintenance work platform is a truck-mounted workbench, and the lower part of the traction type workbench and the bridge is installed on the sieve bridge consisting of the overpass type superstructure and the lower structure extending in the width direction of the bridge under the upper plate of the bridge Permanent installation workbench, which is a suspended structure, may be mentioned.

Such conventional bridge maintenance work benches are designed to be appropriately used according to the structure of specific bridges such as concrete bridges, suspension bridges and cable-stayed bridges and trust bridges, so they can only be used for maintenance of specific bridges. Could not be used.

As a solution to the problems of the bridge work platform, there is a work bench for the construction and maintenance of the bridge known as the applicant's patent No. 160244.

This workbench provides a work space for assembling and dismantling formwork when constructing bridges, and provides a work space for inspection and maintenance of bridges after completion of bridges. A rotatable connection with a swing gear fixed to the upper mast and a drive motor fixed to the lower mast, a reduction gear box and a drive gear, and a suspension having a trolley arranged at both ends of the frame, on one side of the upper mast and The lower part was equipped with a driving unit consisting of a wheel having a trolley, a driving motor, a reduction gear box, and a driving gear driven gear, which are arranged at both ends of the frame.

This workbench has a workbench "H" beam, " "Movable Scaffolding System with two brackets placed up and down in the longitudinal direction of the bridge, including beams and rails, or suspended on one or both sides of the completed bridge. Since various materials for bridge construction such as formwork and pedestals cannot be transported directly from the top of the bridge to the pier or from the bridge side to the top of the bridge, heavy equipment such as cranes must be used separately to transport the construction materials. There was a problem.

The present invention solves the above problems of the prior art, the present invention can run like a car on the bridge body is placed on the bridge, and the material transport from the material transport vehicle on the bridge body to the pier or from the pier side The technical problem is to provide a bridge construction and maintenance self-propelled work platform that can move various construction materials and various equipment for maintenance of the bridge toward the vehicle.

1 is a perspective view of a self-propelled work bench according to the present invention.

Figure 2 is a front view showing a state of use of the self-propelled work bench shown in FIG.

3 is an enlarged right side view of the self-propelled work bench shown in FIG.

4 is an enlarged perspective view of the driving unit shown in FIG. 1;

5 is an enlarged front view of a part of the self-propelled work bench shown in FIG.

6 is an exploded perspective view of a portion of the movable working scaffold assembly shown in FIG. 1;

1 and 2, the chassis 10 which runs on its own on the bridge body 102, which is mounted on the bridge 100, is fixed on the chassis 10 and is hoisted 12. As shown in FIG. A hoist support boom (16) comprising a guide rail (14) on which the movable member is suspended, a fixed mast (18) extending downward from one side of the hoist support boom (16), and the fixed mast ( 18, a movable mast 20 rotatably connected to the lower side of the movable mast 20, a movable boom 22 which is extended and assembled in a cantilever form below the movable mast 20, and within the movable boom 22. Material conveying trolleys 24 and 24 ', which are movable in the longitudinal direction of the 22, and a movable type which can be moved along the longitudinal direction of the movable boom 22 on the movable boom 22 and whose height is adjusted. The working scaffold assembly 26 is comprised.

The undercarriage 10 has four or more drive wheels 28 as well represented in FIGS. 1 to 5, the shaft 30 of which drive wheels 28 being bracketed at the corners of the undercarriage 10. A drive gear 34 fixed to the shaft 30 and fixed to the shaft 30 is engaged with the output gear 40 of the reduction gear box 38 connected to the drive motor 36. The fork 42 extended to the bottom of the bracket 32 is supported so that the caster 44 can freely rotate.

In the present invention, the caster 44 is supported such that the interval d of about 2 to 3 cm is maintained so as not to contact the road surface 104 of the bridge body 102 as usual, as shown in FIG. When the movable boom 22 is rotated in the longitudinal direction of the bridge to pass through the pier 100, that is, a load is applied to either side of the undercarriage 10 so that the driving wheel 28 on either side of the undercarriage 10. Is generated when overload is applied to the drive wheel 28 by causing the caster 44 on the side of the drive wheel 28 to come into contact with the friction surface of the road body 104 of the bridge body 102 when the key is pressed largely. It is designed to prevent various safety accidents.

The movable mast 20 is connected to a conventional rotary device including a driving motor 46 at the bottom of the stationary mast 18 like a conventional workbench to rotate the movable boom 22 when passing through the piers 100. I can give it.

The movable boom 22 has the first guide rails 48, 48 ′ and the second guide rails 50, 50 ′ on the inner bottom side and the upper inner side, respectively, as well illustrated in FIGS. 1 to 3. The movable boom 22 is fixed in a symmetrical manner in the longitudinal direction.

The material transport cart 24 is supported so that the lower pulley 52 and the upper pulley 54 corresponding to the first guide rail 48 and the second guide rail 50 can rotate freely. The 24 is mounted on the first guide rail 48 and is suspended from the second guide rail 50 so that it can be easily moved. The material guide cart 24 'is also provided with the first guide rail 48'. ) And the lower pulley 52 'and the upper pulley 54' corresponding to the second guide rail 50 'are rotatably supported so that the material transport cart 24' is also supported by the first guide rail 48. ') Is mounted on the second guide rail (50') to be easily moved.

The movable working scaffold assembly 26 has four or more pillar members 58 fixed to the bottom of the base frame 56, as shown in FIGS. 1 to 3 and 6, and the pillar member 58 As illustrated in more detail in FIG. 6, a plurality of holes 59 are formed to face each other.

The pillar member 58 is combined with the fixed and fixed bundle (60).

The adjusting and fixing bundle 60 is a clamp 64 coupled to the angle pipe 62 so as to move in the longitudinal direction of the angle pipe 62 on the upper side of the movable boom 22, and the pillar member 58. The column member 58 and the adjusting and fixing bundle 60 are formed of a tubular body 68 in which a hole 66 and a corresponding hole 66 are formed, while the pin 70 is selectively adjusted. It can be fixed with

That is, while adjusting the height of the movable working scaffold assembly 26 from the movable boom 22, it is possible to maintain the adjusted height firmly.

In the drawing, reference numeral 106 denotes a control box, 108 denotes a hoist 12, a driving motor 36, a generator for supplying power to 46, 110 denotes a construction material such as formwork, 112 denotes a material transport truck, and 114 denotes a pier. Reinforced concrete structure connecting the bridge body (100) and (100).

The self-propelled work platform for the construction and maintenance of the bridge according to the present invention configured as described above has a pier as the chassis 10 has a driving wheel 28 rotating by the driving motor 36 as illustrated in FIGS. 2 and 3. 100) is used for constructing or maintaining the bridge while driving like a normal car on the bridge body 102 placed on the top, and constructing the reinforced concrete structure 114 connecting the bridge 100 and the bridge body 102. Various materials for construction such as reinforcing bars, formwork, pedestals, clamps, etc., are carried from the material transport truck 112 on the bridge body 102 to the hoist 12 and the movable boom 22. 24), (24 ') to transport to the pier 110, or after constructing the reinforced concrete structure 114, the dismantled construction materials from the pier (110) toward the material transport cart (24), (24' ) And hoist (12) Loaded on a truck carrying 112 allows the bar to quickly move to the next construction site.

The material conveying carts 24 and 24 'are each designed to be used independently while maintaining a predetermined distance in the width direction as illustrated in FIG. 3, that is, they may be moved together in the same direction or mutually. Since it can be moved to cross in different directions, as well as various construction materials (110), as well as to carry out the maintenance of the coating equipment for maintenance of the bridge or various measurement and inspection equipment and more flexibly more convenient to carry out.

In addition, the casters 44 spaced at predetermined intervals so as not to contact the road surface 104 of the bridge body 102 toward the driving wheel 28 of the chassis 10 may move the movable boom 22 to pass through the bridge 100. When the road is rotated in the longitudinal direction of the bridge and the load is applied to the undercarriage 10 to one side so that one driving wheel 28 is inclined while being greatly pressed down, the road surface 104 of the bridge body 102 and the rolling friction contact This effectively prevents various safety accidents that may occur when an overload is applied to the drive wheel 28.

The self-propelled work platform for the construction and maintenance of the bridge according to the present invention is a bridge main body (102) for various materials for bridge construction or various equipment for bridge maintenance while running on its own on the bridge main body (102) placed on the bridge (100). ) Can be moved from the side of the bridge (100) or to the bridge body (102) toward the bridge body (102) has the advantage that the construction and maintenance of the bridge can be carried out more safely, quickly, accurately and efficiently.

Claims (4)

On the chassis 10 having four or more drive wheels 28 connected to the drive motor 36, a hoist support boom 16 including a guide rail 14 on which the hoist 12 is suspended is fixed, and a movable mast A fixed mast 18, which is connected to a 20 and a conventional rotary device, is fixed to one side of the hoist support boom 16, and has a material transport cart 24, 24 'and a movable working scaffold assembly 26. The construction and maintenance of the self-propelled work bench of the bridge, characterized in that one side of the movable boom 22 is fixed to the lower side of the movable mast 20. 2. The construction of the bridge according to claim 1, wherein the caster 44 is supported by the chassis 10 on the driving wheel 28 side of the chassis 10 so as to be located above the ground of the driving wheel 28. Self-supporting work bench for maintenance. The method of claim 1, wherein the first guide rails 48, 48 'and the second guide rails 50, 50' are fixed to the inner bottom side and the upper inner portion of the movable boom 22, respectively. The material transport trolleys 24 and 24 'have lower pulleys 52 and 52' which contact the first guide rails 48 and 48 'and the second guide rails 50 and 50', respectively. And self-propelled work platform for the construction and maintenance of the bridge, characterized in that the upper pulleys (54) and (54 ') are supported. 2. The movable working scaffold assembly 26 has four or more pillar members 58 fixed to the base frame 56, and the pillar members 58 are formed such that several holes 59 face each other. And the fixed and fixed bundle 60 made of a tubular body 68 having a clamp 64 coupled to the movable boom 22 and a hole 66 corresponding to the hole 59. Self-propelled work bench for the construction and maintenance of the bridge, characterized in that coupled to the pin (70).