KR100850688B1 - Apparatus for shaping roundness and jointing steel pipe for butting steel pipes - Google Patents

Abstract

An apparatus for shaping roundness and jointing steel pipes for butting steel pipes is provided to stably perform the drawing operation of a pair of shapers by installing a connection plate for extending and contracting the shapers. An apparatus for shaping roundness and jointing steel pipes for butting steel pipes comprises a pair of shapers(100A,100B), and a shaping device(125). The shaping device for supporting the lower part of the steel pipes and coupling two shapers consists of a connection plate(138), plural lower supporting devices(125B), and plural upper adjusting device(125A). The connection plate elongates and contracts the shapers to be contacted between the two shapers. The plural lower supporting devices include a separate plate wherein each shaper is separately installed. The plural upper adjusting device shapes the steel pipes to be contacted to the upper part of the steel pipes or adjusts the step difference by installing shaping cylinders moving from a cylindrical body.

Description

Orthopedic joints for butt steel pipes {Apparatus for shaping roundness and jointing steel pipe for butting steel pipes}

1 is a perspective view showing a state using the orthopedic joint of the prior invention mounted on the backhoe,

2 is a front view showing a state of gripping the steel pipe using the orthopedic joint of the prior invention,

3 is a front view showing a state in which a steel pipe is gripped by using the orthopedic joint of the prior invention,

Figure 4 is a side view showing a state before towing both steel pipes using the orthopedic joint of the prior invention,

Figure 5 is a side view showing a state after towing both steel pipes using the orthopedic joint of the prior invention,

6 is an external perspective view of an orthopedic joint for steel pipe butt according to the present invention;

7 is an external appearance front view of a steel pipe butt joint fitting apparatus according to the present invention, a view showing a state of gripping the steel pipe,

8 is a view showing the internal configuration of the orthopedic fitting for steel pipe butt according to the present invention, a view showing a state of holding the steel pipe,

9 is a front view showing the internal configuration of the steel tube butt joint fitting device according to the present invention, a view showing a state holding the steel pipe,

10 is a side appearance view of a steel pipe butt joint fitting device according to the present invention;

Figure 11 is a side view showing a state before towing both steel pipes using the orthopedic device for butt steel pipe according to the present invention,

Figure 12 is a side view showing a state after towing both steel pipes using the orthopedic joint for steel pipe butt according to the present invention,

Figures 13a and 13b is a perspective view of the main portion showing the lower support mechanism of the shaping device according to the present invention,

14 is a front view of the main part showing the upper adjustment mechanism of the shaping device according to the present invention;

15A to 15C are views illustrating a locking device according to the present invention, FIG. 15A is a cross-sectional view of a pre-lock state, FIG. 15B is a cross-sectional view of a lock state, and FIG. .

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

100A, 100B: Molding Machine 117: Locking Plate

119: protective cover 125: orthopedic device

125A: Upper adjustment mechanism 125B: Lower support mechanism

126: shaped cylinder 128: fine adjustment bolt

130: towing device 135: switchgear

137: connecting shaft 138: connecting plate

140: connecting device 150: locking device

151: locking cylinder 153: cam rod

153a: side 153b: pin slot

153c: insertion hole 155: locking pin

155b: engagement groove 157: return spring

161, 162: connection plate 163, 164: independent plate

200: control equipment 300: hydraulic equipment

The present invention relates to an orthopedic device for butt joints, and more particularly, to a butt joint device for butt joints made to precisely adjust the step between two steel pipes in a state where both steel pipes are opposed to each other to allow butt welding.

Applicant automatically performs piping and welding during the construction of large steel pipes in all field conditions such as general soil section or temporary facility section, ensuring construction workability, economic efficiency, safety and quality of welded joints to maximize the durability of the piping system. Development continues.

Accordingly, the present applicant, based on the results of research and development, "method of construction of steel pipe" (Patent No. 10-0440555), "formation device of steel pipe" (Patent No. 10-0440185), "steel pipe forming joint device" (patent No. 10-0598551) has been patented.

1 to 5 is a view disclosed in Patent No. 10-0598551 of the above patent invention, with reference to this briefly about the steel pipe forming joint device as follows.

Referring to this briefly look at the orthopedic device of the steel pipe of the patent invention as follows.

FIG. 1 shows a state in which an orthopedic joint of a steel pipe is connected to a working arm R of a backhoe BH and transferred to a steel pipe to be constructed.

This steel pipe orthopedic joint is configured to be connected to each other through the connecting device 40 and the traction device 20, the two forming machine 10 is located side by side as shown in FIG.

Each shaper 10 is formed to form a circular structure when closed, as shown in Figure 2 is provided with a semi-circular body (11a) at the top, a pair of quarter-shaped body (11b) at the bottom, The pair of quarter-shaped bodies 11b are connected to the lower portion of the semi-circular body 11a by a hinge 13 to be opened and closed when coupled and separated around the steel pipe.

The opening and closing operation of the quarter-shaped body 11b is performed by the opening-closing cylinder 14 connecting between the semi-circular body 11a and the quarter-shaped body 11b.

In addition, the locking device 15 is provided at a portion where both the quarter-shaped bodies 11b abut each other so that the forming machine 10 does not open in a closed state in a circular structure.

As shown in FIG. 1, the connecting device 40 is configured to be connected to a working arm R such as a crane or a backhoe BH, as shown in FIG. 1.

The two forming machines 10 are provided with a plurality of forming devices 16 for operating a cylinder in a radial direction at regular intervals so that the roundness of both steel pipes can be shaped while holding both steel pipes P to be connected. It is provided.

Further, between the two forming machines 10, as shown in FIGS. 1 and 3, a pulling device 20 for pulling the other forming machine 10 in the state in which the fixing machine 10 is fixed to insert the other steel pipe into the other steel pipe is provided. It is provided.

The steel pipe shaping device as described above, the end portion of the steel pipe to a predetermined round shape while holding both steel pipes (P) to be connected using a plurality of shaping device (16), the traction device 20 After inserting and connecting both steel pipes by using the welding equipment equipped with a welding robot, etc. is a device made to be connected by welding the joint (PS) of the steel pipe.

However, the steel pipe forming joint device of the invention of the invention configured as described above is configured to be suitable for the steel pipe joint is inserted into and connected to the other steel pipe of one steel pipe to form a steel pipe more precisely, the step portion of both steel pipes There is a problem with adjustment.

Including the above problems, the steel pipe orthopedic device of the present invention is configured to be suitable for large diameter steel pipe joint device, there is a limit to apply to the butt joint device of small diameter steel pipe that should reduce the size and width of the entire equipment, The development of more suitable equipment for butt joint of small diameter steel pipes is required.

The present invention has been made to solve the above problems, the plate is provided on both forming machines to support the steel pipe is configured to be interconnected to make the towing operation more stable during the towing operation of both forming machines, both sides An object of the present invention is to provide an orthopedic joint for steel pipe butt which can also improve the degree of connection joint of steel pipe.

In another aspect, the present invention is to provide a steel pipe butt joint fitting device that can be smoothly carried out without damaging the coating portion when gripping, towing, and shaping the steel pipe by differently configuring the height of the plate for supporting the steel pipe There is a purpose.

Steel pipe butt joint fitting device according to the present invention for realizing the above object is made of a circular body that can be opened and closed to hold the steel pipe is provided with a pair of forming machines made to grip and form both steel pipes and interconnected In each of the forming machine is a steel pipe shaping device provided with a shaping device protruding in the inner direction of the circular body so as to adjust the step generated between the two steel pipes when towing the two steel pipes, but the forming device The plurality of plates are installed to protrude at regular intervals from the circular body to support the lower portion of the steel pipe and at least any one pair of plates interconnected, the pair of forming machines according to the traction operation A plurality of configured to enable the extension and contraction operation when getting closer or away from each other A lower support mechanism; Orthopedic cylinders are moved in the radial direction from the circular body is characterized in that it comprises a plurality of upper adjustment mechanism for shaping the steel pipe or adjusting the step while contacting the upper portion of the steel pipe.

Here, the circular body of each forming machine, the upper body of the semi-circular structure, and both the quarter-shaped body rotatably coupled to both sides of the upper body to enable the gripping operation of the steel pipe is configured to be assembled with each other, the lower support mechanism Is provided in the quarter-shaped body, the upper adjustment mechanism is preferably provided in the upper body.

The lower support mechanism preferably comprises a connecting plate interconnected between both forming machines and configured to be capable of contracting and relaxing operation, and an independent plate each independently installed only on the forming machine.

The connection plate and the independent plate is preferably configured to be alternately arranged at regular intervals in each molding machine.

The connection plate is preferably configured to be coupled to each other in a female and female manner in a fixed state on both sides of the molding machine to enable contraction and relaxation.

At this time, the connection plate, one side to be connected while facing each other is made of a 'c'-shaped structure, the other part is made of a'-'shaped structure, the'-'shaped portion is inserted into the' c 'shaped portion It can be configured to be able to contract and relax according to the operating state of both molding machines in the present state.

In addition, each of the support plates constituting the lower support mechanism, a relatively high portion of a section where the two lower support mechanism of the two forming machines face each other is formed relatively high, the outer portion of the two forming machine is relatively low It is preferably formed.

On the other hand, the upper sides of the two forming machines, the control equipment for receiving a driving signal from the outside and outputting a control signal, the hydraulic pressure is configured in the switchgear, locking device, shaping device, traction device provided in each forming machine according to the signal of the control equipment Preferably, the hydraulic equipment is mounted and configured to operate the cylinder.

In addition, each of the forming machine, the upper body of the semi-circular structure, when both of the quarter-shaped body is coupled to both sides of the upper body to be opened and closed are assembled to each other, the portion is connected to both the quarter-shaped body and the upper body The outer surface of the protective cover is preferably provided to prevent the entry of foreign matter.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

6 is an external perspective view of an orthopedic joint for steel pipe butt according to the present invention.

7 to 9 is a front view of the orthopedic fitting for steel pipes according to the present invention, Figure 7 is an external front view, Figure 8 is a front view showing the internal configuration of the state immediately before gripping the steel pipe, Figure 9 is a steel pipe gripping It is the front view which showed the internal structure of one state.

10 to 12 is a side view of the orthopedic fitting for steel pipes according to the present invention, Figure 10 is a side appearance view, Figure 11 is a side view showing the state before towing both steel pipes, Figure 12 is after pulling both steel pipes It is a side view showing the state.

For reference, FIG. 8, FIG. 9, FIG. 11, FIG. 12 abbreviate | omitted and showed the structure of mounting equipment.

The butt joint device for butt joints according to the present invention as shown, is a device for forming and towing and interconnecting small diameter steel pipes having a diameter of about 500mm used in the waste transportation line, such as butt welding. Such a device of the present invention is not necessarily applied only to small diameter steel pipes, as a general steel pipe joint equipment, of course, can be widely applied.

In addition, the steel pipe in which the apparatus of the present invention is used has a structure (CP) chamfered by a beveler or the like so that the parts to be joined to each other can be butt welded, as shown in FIG. Steel pipe outer surface of the coating (C) can be made.

The apparatus of the present invention used to connect such a steel pipe will be described in detail with reference to the accompanying drawings.

Orthopedic fitting for steel pipe butt according to the present invention, the two forming machines (100A, 100B) consisting of the circular body (111, 112) side by side as shown in Figures 6 and 10 to 12 so as to shape the steel pipe (P), respectively It is arranged and connected in one set by the traction device 130 and the connection device 140 to be described below.

Circular bodies (111, 112) of each of these forming machines (100A) (100B) are coupled to both the upper body 113 and the upper body 113 of a semi-circular structure, as shown in Figures 6 to 9 is opened and closed Both quarter-shaped bodies 114 and 115 formed are assembled to each other.

That is, the upper body 113 is divided into a size of about 1/2 in a circular structure, the quarter-shaped body (114, 115) is divided into a size of about 1/4, and assembled together to hold the circumference of the steel pipe (P) It will form a circular structure.

Both quarter-shaped bodies 114 and 115 are connected to the upper body 113 through a connecting shaft 137 and rotated so as to form a circle when the forming machine 100A and 100B is closed as shown in FIG. It is configured to open to both sides as shown in Figs. 7 and 8 at the time of opening, such as when inserted around the (P).

Next, when coupled between the upper portion of the body 113 and the connecting portion of the quarter-shaped body (114,115) around the steel pipe (P), the opening and closing cylinder 136 to be gathered again in the open state the quarter-shaped body (114,115) There is provided an opening and closing device 135 is included.

The opening and closing device 135 is configured to operate the opening and closing cylinder 136 so that both the quarter-shaped body 114, 115 open to both sides as shown in Figure 8, or can be collected in a circular shape when holding the steel pipe as shown in Figure 9 .

Here, the connecting portion of the upper body 113 and the quarter-shaped bodies 114 and 115 provided with the opening and closing device 135 will be described.

The front and rear plates forming the upper body 113 and both quarter-shaped bodies 114 and 115 are configured to form the same plane. And it is installed by fixing the connecting plate 138 to each of the outer surface of either of the upper body 113 and both of the quarter-shaped body (114,115) in the figure, respectively, by welding or the like, The connecting plate 138 is configured to interconnect with the connecting shaft 137 in a state extending in the direction of the counterpart body (the upper body 113 in the drawing).

The configuration of the connection plate 138 is configured to be suitable for the orthopedic joint of small diameter steel pipes by forming both bodies with the same width without reducing the width of either the upper body 113 or both of the quarter-shaped body (114,115). .

In addition, the connecting shaft 137 is installed to be located on the inner circumferential surface side of each of the circular body (111, 112), both plates forming the upper body 113 and the quarter-shaped body (114, 115), the connection shaft 137 as the center The round contact surface 139a is formed to contact the convex and concave structures so that the portions in contact with each other do not interfere with the operation of the quarter-shaped bodies 114 and 115.

In addition, in the direction of the outer circumferential surface of the circular bodies 111 and 112 in the round contact surface 139a, the distance between the two plates is gradually formed, and when the two quarter-shaped bodies 114 and 115 are opened to both sides, they are opened at a predetermined interval. A stopper surface 139b is provided so as not to be further opened while being in contact with each other as in.

In addition, the circular bodies 111 and 112 have been removed such that both sides of the outer side of the portion where the upper body 113 and the quarter-shaped bodies 114 and 115 are interconnected so as to minimize the width in the horizontal direction enter the inside more in the circular structure. The deletion portion 139c of the structure is formed.

The deleting unit 139c can improve the workability by reducing interference with the surrounding structures such as the device of the present invention and both walls that are broken in the same space as the construction site where the trenching work is performed for steel pipe construction. Can also reduce the width of the trench.

On the other hand, in the circular body (111, 112), the outer body is connected to the upper body 113 and the quarter-shaped body (114, 115) to prevent the entry of foreign matter, etc. into the interior of the circular body 6, 7, 7, 10, etc. A protective cover 119 as shown is covered.

The protective cover 119 is preferably made of a flexible material so as to block foreign substances that may enter the device without disturbing when the quarter-shaped body (114, 115) rotates, this embodiment In the example exemplified that consisting of a stream of materials to manufacture belts. Of course, it is also possible to use leather or other flexible sheet-like materials, without being limited to streams.

Both ends of the protective cover 119 may be fixed to the outer surfaces of the upper body 113 and the quarter-shaped bodies 114 and 115 by using a screw or the like, or, if necessary, attached using an adhesive such as a bond.

In addition, the control equipment 200 and the hydraulic equipment 300 are largely mounted on the upper parts of the two forming machines 100A and 100B configured as described above, and the elements constituting the two devices are the two forming machines 100A and 100B. It is properly distributed and arranged on the top.

That is, as shown in FIG. 6, the first sub control box 203, the hydraulic tank 301, the hydraulic pump 303, and the main control are provided in the front molding machine 100A (hereinafter referred to as a 'first molding machine') from the left side. The box 201 is installed, and the first sub control box 203, the hydraulic tank 301, and the hydraulic pump 303 are fixedly installed in front of the first molding machine 100A, and the main control box 201 is installed. Is installed above the first molding machine (100A).

In addition, a second sub-control box 205, a first solenoid valve assembly 305, and a second solenoid valve assembly 307 are installed in the rear shaper 100B (hereinafter referred to as a 'second secondary molder') from the left side. In the drawing, it is attached to the rear of the second molding machine 100B.

The control equipment 200 and the hydraulic equipment 300 is not limited to the arrangement configuration as described above, it can be configured by changing the position on the upper side of the two forming machines 100A, 100B as necessary, Of course.

Meanwhile, the role of each component of the control device 200 and the hydraulic device 300 will be described below.

First, the control device 200 receives a driving signal from a wireless driving box or a wired driving box, and each solenoid valve of the hydraulic pump 303 of the hydraulic equipment 300 and the first and second solenoid valve assemblies 305 and 307. It is the equipment to output the control signal.

The main control box 201 is configured with a receiving circuit and an output circuit including a PCB control board to control the entire equipment by receiving an external driving signal.

The first sub control box 203 and the second sub control box 205 may operate the opening and closing device 135, the locking device 150, the shaping device 125, the traction device 130, and the like, which will be described later. It is configured to output the respective control signal to the hydraulic pump 303 and the sole valve assembly (305) (307).

Here, the hydraulic pump 303 may be configured to directly control the main control box 201, the opening and closing device 135, the locking device 150, the shaping device 125 is both forming machine (100A) (100B) Each of the first and second sub control boxes 203 and 205 is individually provided to control them, and means for controlling the traction device 130 are respectively provided in the first and second sub control boxes 203 and 205. It is provided in either of the control boxes 203 and 205.

 Next, the hydraulic equipment 300 is configured to operate the hydraulic cylinder provided in the opening and closing device 135, the locking device 150, the shaping device 125, the towing device 130, the hydraulic tank 301 Hydraulic oil is stored in the hydraulic pump 303 provides hydraulic oil stored in the hydraulic tank 301 to each hydraulic cylinder, and the first and second solenoid valve assemblies 305 and 307 are the hydraulic pump ( 303 is provided on the flow path to the hydraulic cylinder such as the opening and closing device 135, the locking device 150, the shaping device 125, the traction device 130, and the like, the first and second sub-control box 203 ( A plurality of solenoid valves for controlling the hydraulic pressure in accordance with the control signal of 205.

On the other hand, the control device 200 and the hydraulic equipment 300 having the function as described above, disposed on the upper part of the molding machine is supported by the various support 350 installed on the upper part of the forming machine (100A) (100B) in a substantially horizontal direction Installed and configured.

For reference, in the drawings, a wire or a hydraulic line for power and signal transmission configured to interconnect the control equipment 200 and the hydraulic equipment 300 is omitted.

Next, in the forming machine 100A, 100B in which the control equipment 200 and the hydraulic equipment 300 are mounted as described above, the roundness of the steel pipes P and the two steel pipes inside the circular bodies 111 and 112 may be provided. In addition to adjusting the step, a plurality of shaping devices 125 are configured to stably fix the device of the present invention around the steel pipe.

In particular, the shaping device 125 is configured to be joined to the butt joint of the small-diameter steel pipe, when the two pipes are towed butted, inward direction of the circular body (111, 112) to adjust the step that occurs between the two steel pipes It is configured to protrude.

The shaping device 125 is installed to protrude at regular intervals from the circular body (111, 112), the lower support mechanism 125B made of a plate support structure to support the lower portion of the steel pipe (P), and the circular body (111, 112) Orthogonal cylinders 126 moving in a radial direction in the) is provided at a predetermined interval is composed of a plurality of upper adjustment mechanism (125A) for shaping the steel pipe or adjusting the step while contacting the upper portion of the steel pipe. At this time, the lower support mechanism (125B) is provided on both of the quarter-shaped body (114, 115), respectively, the upper adjustment mechanism (125A) is provided on the upper body 113, respectively.

The lower support mechanism 125B and the upper adjustment mechanism 125A will be described in detail with reference to FIGS. 6 and 13A through 14.

First, the lower support mechanism 125B will be described.

FIG. 13A is a perspective view of one quarter-shaped body in a pre-traction state in which both molders are collected from each other, and FIG. 13B is a perspective view of one quarter-shaped body in a state where both molders are collected and towed together.

As shown therein, the lower support mechanism 125B is formed of each pair of support plates 161, 162, 163, and 164 formed long along the longitudinal direction of the steel pipe, thereby forming both plates forming the quarter-shaped bodies 114 and 115. It is fixed in the direction orthogonal to. Of course, the protruding height of the lower support mechanism (125B) is set to adjust the lower roundness and step of the steel pipe while supporting the lower portion of the steel pipe (P) when adjusting the roundness through the upper adjustment mechanism (125A) located at the top.

Since the lower support mechanism 125B is fixedly installed to each of the forming machines 100A and 100B, the two forming machines 100A and 100B move in a direction closer to each other as shown in FIG. 12 during the towing operation of the steel pipe. , It is made of a structure capable of stretching and contracting while supporting both steel pipes (P) stably.

That is, the lower support mechanism 125B is a connection configured to be connected to each other between the forming machines 100A and 100B so as to be able to contract and relax as shown in FIG. 6 and partially enlarged FIGS. 13A and 13B. The plates 161 and 162 and the independent plates 163 and 164 provided independently to each molding machine are comprised. In this case, the connection plates 161 and 162 and the independent plates 163 and 164 are preferably configured to be alternately arranged at regular intervals as shown in the drawing.

The connecting plates 161 and 162 are configured to be contracted and relaxed by being coupled to each other in a female and female manner in a state fixed in the width direction to each quarter-shaped body of both the forming machines 100A and 100B. One side 162a connected while being formed has a 'c' shaped structure, and the other portion 161a has a 'ㅡ' shaped structure, and the 'ㅡ' shaped portion 161a is a 'c' shaped portion 162a. It is configured to allow the contraction and relaxation in accordance with the operating state of both molding machines (100A, 100B) in the inserted state.

Here, the connection plate 162 having a 'c' shaped structure welds both plates to form a 'c' shaped portion at one end of the plate portion 162b fixed to the quarter-shaped bodies 114 and 115. It can be configured as a structure attached by the method of.

The independent plates 163 and 164 are formed to have a shorter length than the '-' shaped plate portion 161a constituting the connection plates 161 and 162 and are independently installed on the respective quarter-shaped bodies 114 and 115.

Each of the lower support mechanisms 125B including the connection plates 161 and 162 and the independent plates 163 and 164 as described above is in contact with each other within a predetermined range in the longitudinal direction of both steel pipes, that is, both lower support mechanisms 125B. The predetermined section of the portion (H) facing each other is formed relatively high, the outer portion (L) is formed relatively low in height.

The reason for differently forming the height of the lower support mechanism 125B, as shown in FIG. 11, is that the relatively high portion H contacts the uncoated portion NC of the steel pipe P to coat the steel pipe. This is to prevent the portion (C) from being damaged. And the lower portion (L) of the lower support mechanism (125B) is not in direct contact with the surface of the steel pipe (P) to stably support each lower support mechanism (125B) to each quarter-shaped body (114, 115) It will play a role.

In addition, a buffer pad or the like may be installed at the portion H contacting the steel pipe in the lower support mechanism 125B. The buffer pad that may be installed at this time may be made of solid silicone or a fiber material used as a belt material. .

As described above, the lower support mechanism 125B of the present invention forms the heights of the center and both parts with respect to both the forming machines 100A and 100B so that when the steel pipe is gripped, towed or shaped, the steel pipe is not damaged. You can proceed with the joint.

In addition, as described above, by configuring some plates of the lower support mechanism 125B as interconnecting plates 161 and 162, the towing operation of both molding machines can be made more stable. It is possible to further improve the precision.

Next, the upper adjustment mechanism 125A will be described.

14 is a detailed view of the upper adjustment mechanism according to the present invention.

As shown therein, the upper adjustment mechanism 125A automatically forms both steel pipes first, and then finely adjusts the step between both steel pipes by manually rotating the fine adjustment bolt 128, which will be described later, with a tool such as a spanner. It is configured to be.

As shown in detail in FIG. 14, the upper adjustment mechanism 125A has an orthopedic cylinder 126 installed in the upper body 113, and the orthodontic cylinder 126 has a piston in a radial direction, that is, in an outer surface direction of the steel pipe. The rod 127 is configured to protrude. In particular, the end of the piston rod 127 is provided with a fine adjustment bolt 128 to fine-tune the step between the two steel pipes.

Fine adjustment bolt 128 is mounted in a manner that is screwed to the piston rod 127 is configured such that the head contacts the surface of the steel pipe. Of course, a portion of the head contacting the surface of the steel pipe may be configured by installing a pad 128a, such as a buffer pad 129a, installed on the lower support mechanism 125B.

On the other hand, it is preferable that the lower support mechanism 125B and the upper adjustment mechanism 125A as described above are configured to be arranged one by one about 18 degrees around the steel pipe. Thus, the lower support mechanism 125B and the upper adjustment mechanism ( The reason why the 125A) is densely arranged is that for the butt welding, all the parts must be finely adjusted so that the step of the butt part in each of the steel pipes P is 3 mm or less.

Next, a traction device 130 is provided between the two molders, i.e., both circular bodies 111 and 112, and the traction device 130 connects both steel pipes P to both molders 100A and 100B as shown in FIG. 12 is a device for pulling and connecting one of the steel pipes so that both steel pipes P are connected to each other in a state in which they are connected to each other as shown in FIG. 12, and the traction cylinder 131 is operated to a certain extent. Both steel pipes (P) are configured to be mutually matched. Of course, on both sides of the traction cylinder 131 is provided with a traction guide rod 132 to connect both circular bodies (111, 112) to each other and to guide linear movement during the traction operation.

Here, the cover 133 and 134 having a boot structure may be configured on the outer surfaces of the traction guide rod 132 and the traction cylinder 131 as shown in FIG. 10.

Next, a connection device 140 is provided to connect a lifting device such as a crane or a backhoe to the upper portions of both the forming machines 100A and 100B.

The connecting device 140 is composed of a plurality of connecting links (142, 143) so as to be folded and unfolded in accordance with the distance adjustment of the two forming machines (100A, 100B) as in the traction operation, the both forming machines (100A, Is installed between the 100B, the connection ring 142, 143 consists of a configuration provided with a connecting ring 144 so that the external lifting device can be connected to the central portion.

Here, the plurality of connection links 142 and 143 are connected to the link brackets 141 fixed to the outer surfaces of both the forming machines 100A and 100B.

As described above, the connecting device 140 having the link structure is gripped by the two steel pipes P through the both forming machines 100A and 100B, respectively, using the traction device 130 as described above. As shown in Figure 12 is to be configured to be naturally folded in the process of pulling both the forming machine (100B) so that both steel pipes (P) to each other.

Next, the opposite ends of the two quarter-shaped bodies 114 and 115 are configured with a locking device 150 to prevent the mutual connection is released.

The locking device 150 of the present invention is configured to be locked by hydraulic pressure, and the configuration thereof will be described with reference to FIGS. 15A, 15B, and 15C.

For reference, only one of the configurations of both forming machines 100A and 100B is shown in the drawings, and of course, the same applies to both forming machines.

The locking device 150 according to the present invention is locked when the locking cylinder 151 installed in the one quarter body 114 operates while the one quarter body 114 and the locking plate 117 overlap each other. The pin 155 is configured to protrude to both sides and pass through both locking holes 114a and 117a overlapping each other.

That is, the locking device 150 is connected to the locking cylinder 151 provided in one quarter-shaped body 114 and the piston rod 152 to the locking cylinder 151 to perform linear movement of the locking cylinder 151. Cam rods 153 for switching in the vertical direction, and both locking pins 155 coupled to the cam rods and inserted into both locking holes 117a of the opposite locking plate 117 while being opened to both sides in accordance with the movement of the cam rods. It is composed of

Here, the cam rod 153 has a structure that gradually narrows toward the front from the rear to which the locking cylinder 151 is coupled, that is, both side surfaces 153a are formed in an inclined structure, each of the inclined side surfaces 153a As shown in FIG. 15C, the pin slot 153b is elongated to be coupled in the state in which the tail of the locking pin 155 is inserted.

In addition, the side of the cam rod 153 is formed to be connected to the insertion hole 153c of the relatively extended structure so that the locking pin 155 is inserted and coupled to one end of the pin slot 153b. .

The locking pins 155 coupled to the cam rods 153 have upper and lower coupling grooves 155b coupled to the pin slots 153b of the cam rods in inclined directions, respectively. It is configured to be fitted to

Accordingly, the cam rod 153 and the locking pin 155 are mutually coupled in a direction orthogonal to each other as shown in FIG. 15C, and the movement of both locking pins 155 is limited in the movement direction of the cam rod 153. Therefore, when the cam rod 153 moves linearly, the locking pin 155 moves forward and backward along the inclined side surface 153a in place and performs locking and releasing operation.

That is, the cam rod 153 of the locking cylinder 151 does not protrude in the non-locked state in which the two quarter-shaped bodies 114 and 115 are separated from both sides as shown in FIG. 15A. In this state, as shown in FIG. 15B, when the one quarter body 114 and the other locking plate 117 are positioned to overlap each other, hydraulic pressure is provided to the locking cylinder 151, and at this time, the cam rod As the 153 moves forward, the inclined surface pushes both lock pins, and both lock pins 155 are opened while being inserted through the lock holes 117a.

Such a locking device 150 of the present invention, when the device of the present invention is mainly used for the butt joint of small diameter steel pipe, the width of the quarter-shaped body (114, 115) of each forming machine (100A, 100B), the body It is difficult to install a cylinder that operates in the width direction of the.

Therefore, like the locking device 150 of the present invention, the locking cylinder 151 is disposed in the longitudinal direction of the quarter-shaped body 114, and the direction is changed by 90 degrees so that the driving force of the cylinder is transmitted to the locking pin 155 for locking. Since the operation is configured to be made, the locking operation can be easily made even in a state in which the width of each forming machine (100A, 100B) is minimized.

In addition, the locking device 150 is configured so that the locking pin 155 is protruded to both sides from the inside of the shaper (100A, 100B) without protruding to the outside, so that the outer surface of the equipment is not only simple but overall configuration This simplicity has the advantage of minimizing the jamming part when using the equipment and beautiful appearance.

The steel tube butt joint fitting device according to the present invention configured as described above, both the forming machine is interconnected in a more stable state because it is configured to perform the contraction and relaxation operation in the state in which the support plates provided with each of the two forming machines are interconnected In addition, the traction operation of both forming machines is also made more stable, and thus there is an advantage in that welding quality can be improved during butt welding of both steel pipes.

In addition, the present invention has the advantage that can be smoothly carried out without damaging the coating portion when holding, pulling, shaping the steel pipe by configuring the height of each plate supporting the steel pipe differently.

In addition, the present invention is configured to realize the locking by placing the locking cylinder constituting the locking device in the longitudinal direction inside the quarter-shaped body to realize the locking operation easily without reducing the width of each molding machine without protruding to the outside There is an advantage to this.

In addition, the present invention has the advantage that the locking pin is configured to be locked in a state in which the pin rod is securely coupled to the pin rod to enable a reliable locking and unlocking operation with a simple structure.

Claims (10)

It consists of a circular body that can be opened and closed to hold steel pipes, and is provided with a pair of forming machines configured to hold both steel pipes, and to form and interconnect them. In the steel pipe shaping device having a shaping device protruding inwardly of the circular body to adjust the step difference generated, The shaping device, It is installed to protrude at regular intervals from the circular body to support the lower part of the steel pipe or to interconnect the two forming machines stably, when the pair of forming machines are closer or farther from each other made of an interconnected structure between the two forming machines A plurality of lower support mechanisms each including a connecting plate configured to be capable of extension and contraction operation, and an independent plate each independently installed only on the molding machine; A plurality of upper adjustment mechanisms in which radial cylinders moving in the radial direction in the circular body are installed to contact the upper portion of the steel pipe to shape the steel pipe or adjust the step; Orthopedic fitting for steel pipe butt, characterized in that configured to include. The method according to claim 1, The circular body of each of the shaper, the upper body of the semi-circular structure, and both quarter-shaped body rotatably coupled to both sides of the upper body to enable the gripping operation of the steel pipe is composed of mutually assembled, The lower support mechanism is provided in the quarter-shaped body, the upper adjustment mechanism is a steel pipe butt joint device, characterized in that provided in the upper body. delete The method according to claim 1, Wherein the connection plate and the independent plate is a steel pipe butt jointing device, characterized in that configured to be arranged alternately at a predetermined interval in each forming machine. The method according to claim 1, Wherein the connecting plate is a fixed joint device for butt joints, characterized in that the parts connected to each other in a fixed state in each of the forming machine is coupled to the male and female manner to be configured to contract and relax. The method according to claim 5, The connection plate, One side connected to each other is made of 'c' shaped structure, The other part is made of '-' shaped structure, and the '-' shaped portion is inserted into the 'c' shaped portion, but it is configured to be able to contract and relax according to the operation state of both forming machines. Orthopedic joints. The method according to any one of claims 1, 2, 4, 5, 6, Each of the support plates constituting the lower support mechanism, A predetermined section of a portion in which both lower support mechanisms of the two forming machines face each other is formed with a relatively high height, and the outer portions of the two forming machines are formed with a relatively low height. The method according to any one of claims 1, 2, 4, 5, 6, On the upper sides of the two forming machines, a control device that receives a driving signal from the outside and outputs a control signal, and a hydraulic cylinder constituted in an opening / closing device, a locking device, a shaping device, and a traction device provided in each forming machine according to the signal of the control device. Orthopedic fitting for steel pipe butt, characterized in that the hydraulic equipment is mounted to be configured to operate. The method according to any one of claims 1, 2, 4, 5, 6, Each of the forming machines is composed of a semi-circular upper body and both quarter-shaped bodies coupled to both sides of the upper body to be opened and closed, and assembled together. Orthopedic joints for steel pipe butt, characterized in that the protective cover for preventing the inflow of foreign matter is provided on the outer surface of the two quarter-shaped body and the upper body is connected. The method according to any one of claims 1, 2, 4, 5, 6, Ends facing each other in the circular body of each of the forming machine is provided with a locking device to prevent the interconnected state is released, The locking device includes: a locking cylinder disposed in the longitudinal direction of the body in one circular body; A cam rod connected to the locking cylinder to linearly move and at least one side of which is inclined; It is coupled orthogonally to the inclined side surface of the cam rod in one circular body so that it can be inserted into the locking hole of the opposite circular body in accordance with the movement of the cam rod while the portions of both circular bodies overlap each other. Orthopedic fitting for steel pipe butt, characterized in that it comprises a locking pin.

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