KR20010077551A - Apparatus For Assembling Tunnel Support - Google Patents

Abstract

PURPOSE: A support assembling apparatus is provided to easily install supports, prevent an accident and the preponderance of working manpower in installing the supports, thereby improving the productivity of tunnel excavation work. CONSTITUTION: A support assembling apparatus includes a frame(110), a link structure body(120a) hinged to a lower front end part of the frame, an oil hydraulic cylinder(112) having a piston coupled to the line structure body and having an end hinge-coupled to the lower end part of the frame for pushing or lifting the link structure body, a V-shaped support lifting arm(124a) having one end hinged to the lower front end part of the frame, the bent center hinge-coupled to the link structure body, and the other end having a support fixing part(128a), and an oil hydraulic unit fixed at the frame for operating the oil hydraulic cylinder.

Description

Jibo assembly unit {Apparatus For Assembling Tunnel Support}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support assembly device, and more particularly, to an apparatus for assembling support provided around an excavation surface to prevent the collapse of the excavation surface during construction of the underground tunnel and to construct a tunnel shape.

In the construction of underground tunnels, there is a possibility that the main surface of the excavation tunnel will sink because a large external pressure is applied due to the heavy loads on the upper and sidewall portions of the tunnel to be excavated. In order to prevent this, a messer shield method is used for the construction of underground tunnels.

When constructing underground tunnels by the method of shielding method, firstly arrange the messer plates in parallel on the support fabricated according to the tunnel shape, and then push the mesher plates one by one with the hydraulic propeller. On the other hand, the earth plate is inserted into the excavation surface to the rear of the mesmer plate and supported by the support so that the excavation surface does not collapse.

However, this support installation work is carried out only by manpower. Since the weight of the support is about 150-170 Kg and the length reaches 2.8-3.5 m, it is installed by lifting only such support in a limited space. It is not easy to do it, the risk of safety accident is very high, and there is a problem that the excavation work of the underground tunnel is delayed due to the bias of the workforce when installing the support.

The present invention has been made in order to solve the above problems, the support assembly device to facilitate the support installation work by lifting the support by the mechanical device, reducing the safety accident and at the same time so that the work force at the support installation is not biased The purpose is to provide.

1 is a side view showing a support assembly according to an embodiment of the present invention.

Figure 2 is a rear view of the support assembly of Figure 1;

3 is an enlarged view of a portion A of FIG. 1.

4 is an enlarged view of a portion B of FIG. 2.

5 is a schematic view showing a hydraulic connection of the support assembly of Figure 1;

<Description of the symbols for the main parts of the drawings>

110: frame 120a, 120b: link structure

124a, 124b: Jibo Impression Arm 128a, 128b: Goverment

130: hydraulic unit 140, 141: hydraulic winch

142, 143: wire rope 148, 149: sheave

150: support means

Supporting device of the present invention for achieving the above technical problem, the frame, the link structure is hinged to the lower end of the frame, the piston is coupled to the link structure and the cylinder end is the lower end of the frame Hydraulic cylinder hinged to push or pull the link structure, V-shaped one end is hinged to the lower end of the frame, the bent central portion is hinged to the link structure and the other end is supported by the support An arm and a hydraulic unit fixed to the frame to operate the hydraulic cylinder.

The support assembly of the present invention, the support assembly further comprises a sheave fixed to the top end of the frame, a hydraulic winch fixed to the rear end of the frame and a support beam lifting portion including a wire rope extending downward from the hydraulic winch through the sheave. do.

Here, the end of the wire rope is provided with a fastener for fastening the support, the link structure is a vertical link whose one end is hinged to the lower end of the frame and the horizontal end of which one end is hinged to the other end of the vertical link A link is provided and the V-shaped portion of the support arm is hingedly coupled to the other end of the horizontal link.

The link structures are respectively installed on both sides of the frame, each link structure is connected by a cross bar, and the piston of the hydraulic cylinder is coupled to the center portion of the cross bar so as to be adjustable.

In addition, the support raisers are respectively provided on both sides of the frame can be operated independently or at the same time, the hydraulic unit has a solenoid valve and a solenoid for controlling the hydraulic flow to the hydraulic winch of the hydraulic cylinder and each of the support upper portions A control box for instructing the opening and closing of the valve is provided.

In the case of installing the support by the support assembly device of the present invention, the support installation is easy by lifting the support by the mechanical device, reducing the safety accident and at the same time the workforce during the installation of the support is not biased. There is an advantage to improve the productivity of excavation.

Hereinafter, the support assembly device of the present invention will be described in detail with reference to the accompanying drawings. On the other hand, in the following description, the terms indicating the direction of the top, bottom, top, bottom, left, right, etc. are used to indicate the position of the members, but this is only for convenience of description and it is intended to limit the present invention. Make sure it's not.

1 is a side view showing a support assembly according to an embodiment of the present invention, Figure 2 is a rear view of the support assembly of Figure 1;

1 and 2, the support assembly according to an embodiment of the present invention includes a frame 110, and a link structure 120a hinged to the lower end of the frame 110, The link structure 120a is configured to be pushed forward or pulled backward by the hydraulic cylinder 112, and the link structure 120a has a V-shape to support the support portion 128a at its end. Arm 124a is hinged.

Frame 110 is preferably manufactured by assembling or welding steel beams in a substantially rectangular shape to maintain strength. The upper end of the frame 110 is supported to be movable on the upper support 170c, which will be described later.

The link structure 120a is hingedly coupled to the distal end of the frame 110, and the link structure 120a is composed of a vertical link 123a and a horizontal link 122a. One end of the vertical link 123a is hinged to the lower end of the frame 110, and one end of the horizontal link 122a is hinged to the other end of the vertical link 123a. In addition, a substantially V-shaped support arm 124a is hingedly coupled to the other end of the horizontal link 122a. On the other hand, the link structure is to be installed on the left and right sides of the frame 110, respectively, as shown by 120a and 120b in Figure 2 so as to withstand the load acting when the support arm 124a lifts the support (170d) bar 2, only the right vertical link 123a and the left vertical link 123b are shown. As such, a cross bar 129 is installed between the right link structure 120a and the left link structure 120b to reinforce the link structures 120a and 120b hinged to both sides of the frame. Similarly, the support arm is hinged to the left and right link structures 120a and 120b, respectively, as shown in FIG. 2 as 124a and 124b. Jibojeongjeong bar 128 is fixed to the ends of the jiboimsang arms 124a, 124b, easy jibojeongba 128 is provided with jibojeongbu 128a, 128b at both ends. Supporting portions 128a and 128b have recessed grooves formed therein, and the recessed grooves are sized to fit the jibo 170d.

Hydraulic cylinder 112 is the end of the cylinder is hinged to the lower end of the frame 110, the end of the piston is coupled to the length adjustable to the center of the cross bar (129). Although not shown, a method of adjusting the piston length of the hydraulic cylinder 112 is, for example, by forming a thread at the end of the piston and forming a corresponding Nana mountain inside the through groove (not shown) of the cross bar 129, When the end of the screw is screwed into the through groove, the length of the piston can be adjusted simply by tightening or loosening the nut. By adjusting the length of the piston in this way, there is an advantage that the height of the support arm can be adjusted (124a, 124b) in response to the height change of the workplace or in accordance with the working environment of the operator.

The frame 110 is further provided with a jibo lift, the jibo lift is a sheave 148 fixed to the top of the frame 110 and the hydraulic winch 140 fixed to the rear end of the frame 110 and the hydraulic winch ( And a wire rope 142 extending downward from sheave 148 through 140. On the other hand, referring to Figure 2, the support jibbu each installed on the left and right sides of the frame 110, the sheave 149, the hydraulic winch 141 and the wire rope 143 constituting the left jibowibu upper portion is the right jiboimbu upper portion Like the configuration of the is installed. At the ends of the right and left wire ropes 142 and 143, support fasteners 146 and 147 are provided for connecting the support 170d to the wire ropes 142 and 143, respectively, to lift the support 170d from the floor of the workshop. The support fasteners 146, 147 may simply be bolts or hooks. The right hydraulic winch 140 and the left hydraulic winch 141 are preferably operated simultaneously so that the support 170d is balanced when the support 170d is lifted from the floor of the workplace, but the support 170d is balanced. You can also operate independently of each other so that you can return to the horizontal again if you lose it and tilt it to one side.

On the frame 110, a hydraulic unit 130 including a hydraulic pump (not shown) is further provided. Referring to FIG. 5 schematically illustrating a hydraulic connection of the support assembly apparatus according to the present invention, the hydraulic unit 130 is provided. The solenoid valves 132a, 132b, and 132c which control the hydraulic flow to the hydraulic cylinder 112 and the hydraulic winches 140 and 141 of the upper part of the support are integrally or separately provided, the solenoid valves 132a and 132b. The control box 135 which instructs the opening and closing of the 132c is connected to the hydraulic unit 130.

As described above, the upper end of the frame 110 is supported to be movable on the upper support 170c by the supporting means 150. Referring to FIGS. 3 and 4, which are enlarged views of the supporting means, the supporting means 150 ) Is fixed to the upper support (170c) using the clamp 156, a pair of roller casters (153, 154) are installed in the body 152 of the support means 150 facing each other on the same horizontal axis. . In the body 152 of the support means 150, an empty space is formed between the opposite roller casters 153 and 154 so that the H beam 118 fixed to the upper end of the frame 110 can be inserted therein. An empty space is formed above the roller casters 153 and 154.

Meanwhile, in FIG. 1, the upper support 170c is shown floating in the air, but this is merely to simplify the drawing and is actually a side support 170a assembled on the lower support 170b (installed at the floor of the workshop). Supported by). In addition, reference numeral 180, which is not described in FIG. 1, indicates a method plate for driving forward.

Referring to the operation of the support assembly of the present invention having the structure as described above is as follows.

First, using the clamp 156 to fix the support means 150 to the preassembled upper support (170c). Subsequently, after lifting the support assembly of the present invention, the H beam 118 fixed to the upper end of the support frame 110 is spaced between the spaces of the support means 150 as shown in FIG. 2 or 4. Inserted to support the support assembly to the upper support (170c). In this way, the support assembly of the present invention is movably supported by the upper support 170c to complete the preparation step of the support assembly work. On the other hand, the support means 150 can be simply separated from the upper support (170c) simply by releasing the coupling of the clamp 156, the separated support means 150 is newly installed in the manner described below When the clamp 156 is coupled to the front upper support, the support assembly of the present invention can be continuously moved forward.

When the piston of the hydraulic cylinder 112 is contracted to the rear by operating the hydraulic cylinder switch of the control box 130, the link structures 120a and 120b are operated so that the support arm 124a and 124b are shown in FIG. It is lowered from the position shown to the support fastening position.

Subsequently, the hydraulic winch switch of the control box 130 is operated to lower the wire ropes 142 and 143 to the floor of the workplace, and then the fasteners 146 and 147 of the wire ropes 142 and 143 are placed on the floor of the workplace. Fastening to the fastening hole of 170e (refer to the wire rope indicated by the dotted line at the lower left of FIG. Then, when the wire ropes 142 and 143 are pulled upwards, the support 170e, which has been placed on the floor of the workshop, is lifted, and the wire ropes 142 and 143 are continuously pulled up until the support fastening position is reached. At this time, it is good for the worker to keep the balance of the support 170e.

When the support 170e reaches the support engagement position, the hydraulic winch is stopped and the operator fits the support 170e to the support sections 124a and 124b of the support arms 124a and 124b. On the other hand, in the concave groove of the support section 124a, 124b is provided with an auxiliary fixture (not shown) for assisting the fixing of the support 170e, such as bolts, for example, the support arm 124a, 124b moves up and down It is good to prevent the support 170e from escaping from the recesses of the support sections 124a and 124b. In addition, when the support 170e is securely fixed after being fitted to the support sections 124a and 124b, the fasteners 146 and 147 of the wire ropes 142 and 143 are disengaged from the fastening holes of the support 170e. Allow the wire ropes 142 and 143 to be free.

When the support 170e is firmly fixed to the support sections 124a and 124b and the hydraulic cylinder switch of the control box 135 is operated to extend the piston of the hydraulic cylinder 112 forward, the link structure 120a, 120b) is activated to raise the support arm 124a, 124b to the support assembly position upward from the position shown in FIG.

In this way, while the support 170e is lifted to the support assembly position, the wire ropes 142 and 143 are lowered back to the work floor, and the fastening holes 146 and 147 of the wire ropes 142 and 143 are lowered to the work floor. When fastened to the fastening holes of the other two supporting jib, respectively, the wire ropes (142, 143) are pulled upward, and these jigs are mounted on both sides of the excavation tunnel and assembled on the bottom jibo of the bottom, as shown in FIG. As shown, the side support 170a is installed on the left and right sides of the excavation surface.

Subsequently, when the jibo 170e, which is lifted up at the jibo assembly position, is put on the side jibo 170a installed as described above and assembled, a set of jibo installations is completed. Excavate, push the support assembly forward to the position to install the new support and continue the support assembly as described above.

In the foregoing description, the invention has been described with reference to specific exemplary embodiments. It will be appreciated, however, that various modifications and changes can be made by those skilled in the art within the scope of the appended claims or equivalents thereto. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense.

As described above, the support assembly of the present invention is because the support installation of the support is made by a mechanical device, the support installation is easy and can prevent safety accidents and at the same time the workforce during the support installation is not concentrated The productivity of tunnel excavation can be improved.

Claims (7)

A frame, a link structure hinged to the lower end of the frame, a piston coupled to the link structure, and a cylinder end hinged to the lower end of the frame to push or pull the link structure, and V Its shape is one end hinged to the lower end of the frame, the bent center portion is hinged to the link structure and the other end is a support arm, which has a jibogo government, and the hydraulic pressure fixed to the frame to operate the hydraulic cylinder Support assembly device provided with a unit. According to claim 1, further comprising a jib enhancement comprising a sheave fixed to the top end of the frame, a hydraulic winch fixed to the rear end of the frame and a wire rope extending downward from the hydraulic winch through the sheave. Support assembly device, characterized in that. The support assembly of claim 2, wherein the end of the wire rope is provided with a fastener for fastening the support. According to claim 1, wherein the link structure has a vertical link of which one end is hinged to the lower end of the frame and the horizontal link one end of the vertical link is hinged to the other end of the frame, V-shaped support arm Supporting assembly, characterized in that the portion bent in the shape is hinged to the other end of the horizontal link. 5. The linkage according to any one of claims 1 to 4, wherein the linkage structures are respectively installed on both sides of the frame, each linkage structure is connected by a crossbar, and the piston of the hydraulic cylinder is a central portion of the crossbar. Supporting assembly, characterized in that coupled to the length adjustable. The support assembly according to any one of claims 2 to 3, wherein the support raisers are respectively provided on both sides of the frame to operate independently or simultaneously. The support unit according to claim 1, wherein the hydraulic unit is provided with a solenoid valve for controlling hydraulic flow to the hydraulic winch of the hydraulic cylinder and each of the support upper portions, and a control box for instructing the opening and closing of the solenoid valve. Assembly device.