KR102168441B1 - System pulling H-beam from underground by rotational axis way and apparatus pulling H-beam thereof - Google Patents

Abstract

The present invention relates to an H-beam drawing device using a rotary shaft method and an H-beam drawing system therefrom, and is an organic coupling system in which a "horizontal push insertion method" and a "friction force rotary compression method" are integrated. -Because of easy access to the beam and at the same time, unlike the wedge structure of the prior art, in which the wedge force does not increase over a certain level, the crimp ends of the free ends (Fe) of the rotary compression members 10 on both sides are in close contact with the web. The triangular rotational structure is formed by the free end (Fe) at the triangular apex and the hinge end (He) of the lower angle of change (θ), so that the downward frictional force (F) exerted upon drawing is at the center of the triangular rotational structure. As long as the downward friction force (F) at the time of drawing is continuously applied to the center of the triangular rotational structure, the size of the downward friction force (F) exerts the rotational compression force of the compressed ends of both free ends (Fe). It is an invention that was made to be exerted.

Description

TECHNICAL FIELD [System pulling H-beam from underground by rotational axis way and apparatus pulling H-beam thereof]

The present invention relates to an H-beam drawing device using a rotary shaft method and an H-beam drawing system thereby. More specifically, the ``horizontal push insertion method'' and the ``friction force rotary compression method'' are integrated. As an organic coupling system, H-beam access is easy, and at the same time, unlike the wedge structure of the prior art that does not increase the wedge force above a certain level due to the wedge nature, the crimp ends of the free ends (Fe) of the rotary compression members 10 on both sides are The triangular rotational structure is formed by the free end (Fe) at the triangular apex and the hinge end (He) of the lower deflection angle (θ) in the state in close contact with the web, so that the downward friction force (F) exerted upon drawing is 3 As long as the downward friction force (F) at the time of drawing is continuously applied to the center of the triangular rotational structure as well as acting on the center of the triangular rotational structure, the downward frictional force that the rotational compression force of the compressed ends of both free ends (Fe) is exerted ( It is an invention that allows the size of F) to be exhibited as it is.

In addition, the rotational opening/closing structure of the “friction force rotary compression method” opens and closes the free end (Fe) of the rotary compression member by the expansion and contraction of the sub rotary hydraulic cylinder, but the closed structure is a triangular rotation in which the free ends (Fe) are combined. It is a structure, and its open structure allows the free end (Fe) to be an open structure standing at a right angle to the movable elevator plate 20, so unlike the prior art in which an upward moving guide is essential, the rotation radius of the opening and closing structure is a rotary compression member. Since the center of gravity of the opening/closing structure is located downward, it becomes a stable structure to prevent fall during drawing, and the rotation of the opening/closing structure is quick, so that the drawing operation is performed efficiently and economically.

In addition, in the operating relationship of the four main lifting hydraulic cylinders arranged symmetrically in a straight line, four main lifting hydraulic cylinders for the maximum pulling force of the initial (friction force) drawing stage, and two main for the pulling force of the small frictional force of the subsequent stages. The two-way adjustment structure is achieved by the lifting hydraulic cylinder, and the ``friction force rotary compression method'' not only has a very small rotational opening and closing radius, but also the center of gravity arrangement is stabilized during drawing due to the four straight symmetrical arrangements to prevent the drawing equipment from overturning. At the same time, it is a useful invention that makes the H-beam drawing operation efficient and economical by the two-won coordinated transmission structure.

In the construction of an underground structure, a temporary underground protective film structure, such as an earthen barrier, is essential for underground excavation. H-beam is mainly used as a vertical structure support material for the temporary underground protective film. After the underground structure is completed, the H-beam must be extracted from the ground of the temporary underground protective shield. The conventional H-beam drawing equipment used at this time is usually a wedge force compression method.

The wedge-forced H-beam drawing equipment (hereinafter referred to as'wedge-pressed H-beam drawing equipment') uses a wedge means, the wedge force is transmitted to the web of the H-beam as a compressive force. It is an equipment in which the H-beam is drawn by the operation of the cylinder.

The protrusion of the underground H-beam must be located in the center of the compression space of the “wedge compression H-beam drawing equipment”. This is because the wedge pressing force is transmitted to the web of the H-beam. Here, the compression space is a space into which the protrusion of the H-beam is inserted, and the compression wedge force by the wedge means is transmitted to the web of the H-beam.

If the web of the H-beam cannot be placed in the center of the pressing space of the'wedge pressing H-beam drawing equipment', the crimping wedge force of the wedge means cannot be transmitted to the web, making it impossible to draw the H-beam.

The wedge means of the'wedge compression H-beam drawing equipment' consists of a fixed wedge and a moving wedge. In this wedge method, the wedge of the moving body is guided and moved with respect to the wedge of the fixed body, thereby exerting the wedge force. This is a method in which the wedge force exerted at this time acts as a horizontal pressing force on the web of the H-beam. With respect to the fixed wedge, the movable wedge is pressed against the web of the H-beam, and the distance between the wedges of the movable body on both sides is only the web thickness.

When the web of the H-beam protrusion is inserted into the center of the compression space of the'wedge compression H-beam drawing equipment', the most obstacle to the insertion is the wedge of the moving body on both sides. This is because the gap between the wedges of both moving bodies is extremely narrow. Also, if the gap is not narrow, it is difficult to exert a firm wedge pressing force. This is the biggest problem with the wedge method of the'wedge compression H-beam drawing equipment'.

Two ways to solve this problem have been disclosed as prior art. Patent No. 10-0783472 (Prior Art-1) and Patent No. 10-1171678 (Prior Art-2).

In the compression space in which the web of the H-beam protrusion is inserted in the center of the compression space of the'wedge compression type H-beam drawing equipment', the compression space-C of the prior art-1 is a "closed space", and the prior art The compression space -O of -2 is "open space". Due to this difference in the compression space-O, the approach to the H-beam protrusion of the'wedge compression H-beam drawing equipment' and its access structure are completely different.

1) Look at the prior art-1.

The hatched square in Fig. 1B is a "closed space". This "closed space" is the H-beam compression space-C. This is because it is the H-beam compression space-C of the prior art-1 in the "closed space".

In order to be inserted into the compression space-C of the prior art-1, the tensioning device is lifted with a crane and inserted from the protruding H-beam. This is because there is no other insertion means for the "closed space".

After the'wedge compression H-beam drawing equipment' of the prior art-1 is inserted into the compression space-C of the'closed space', the drawing of the H-beam is a binary drawing by a binary drawing structure. The drawing power of the initial drawing stage and the subsequent stages are different.

The pulling force in the initial pulling stage of the maximum pulling force including the frictional force F of the underground H-beam is achieved by the operation of the large main hydraulic cylinders 5a and 5b (Fig. 1a).

The pulling force after the initial pulling step is achieved by the operation of the small auxiliary hydraulic cylinders 8a and 8b (see Fig. 1b). This is because the frictional force of the underground H-beam after the initial drawing stage is smaller than the initial one. It is a binary drawing structure that is divided into the drawing force by the large main hydraulic cylinders 5a and 5b and the drawing force by the small auxiliary hydraulic cylinders 8a and 8b.

On the other hand, the prior art-2 has a structure in which the pulling force of the initial stage and the subsequent stage cannot be distinguished from the prior art-1. The pulling force of the prior art-2 is a one-won pulling structure (see Fig. 2A). This is because there is no change in the tensile force throughout the H-beam drawing. In the prior art-2, which is a one-won drawing structure, since the H-beam is drawn by the initial maximum drawing force, there is a problem that it is economically inefficient.

However, the binary drawing structure of the prior art-1 is that the center of gravity of the upper auxiliary hydraulic cylinder (8a) (8b) and its related structure is located toward the upper side with respect to the lower “wedge coupling structure”. Due to the unstable center, there is a problem of conduction of the drawing equipment.

Now, a summary of the binary drawing structure of the prior art-1 and its problems are as follows.

The prior art-1 is a binary drawing structure consisting of two upper and lower “closed spaces”.

Insertion of the H-beam protrusion into the compression space-C of the upper and lower two "closed spaces" is a "vertical upward insertion method". This is because it is inserted into the H-beam while the drawing device is raised by a crane.

Since the width of the “closed space” of the “vertical upward insertion method” is extremely narrow, it is difficult to insert the H-beam and there is a problem of ineffectiveness.

The "vertical upward insertion method", in which the heavy equipment of the crane is an essential equipment, has a problem that the drawing operation and its subsequent work are cumbersome and slow, and thus cannot be performed quickly.

Since the upper and lower “wedge coupling structure” consisting of the fixed wedge and the moving wedge is located in the “closed space”, when the drawing device is inserted, the mobile wedge must escape to the outside of the “closed space”. As long as the moving object wedge is located in a "closed space", it is impossible to insert the drawing equipment upward. It is inevitable for the wedge of the moving object to escape from the "closed space". With the moving body wedge evacuated, the drawing equipment is inserted upward in the "closed space". After the drawing device is inserted, the moving body wedge is moved to the fixed body wedge and is compressed by the H-beam.

In the upper and lower “closed space”, the “wedge coupling structure” consisting of a fixed wedge and a moving wedge is located. In order to be inserted into the H-beam in the upper and lower “closed spaces”, first, the wedge of the moving object must escape to the evacuation induction road before the insertion, and second, the insertion width of the upper and lower “closed spaces” is narrow, so the insertion There is this extremely difficult problem.

2) Let's look at Patent No. 10-1171678 (Prior Art-2).

Both of the prior art-1 and the prior art-2 are wedge pressing force methods based on a "wedge coupling structure". The common points of the "wedge coupling structure" of the wedge compression force method will be described later.

First, for convenience of explanation, the differences between the prior art-1 and the prior art-2 having a "wedge coupling structure" and the problems of the prior art-2 are as follows.

A) Differences between the two inventions

① The compression space-C of the'wedge compression H-beam drawing equipment' of the prior art-1 is a "closed space", whereas the compression space-O of the prior art-2 is a "open space". The compression space of is different.

② Accordingly, the prior art-1 is the “vertical upward insertion method” in which the “closed space” of the “wedge compression type H-beam drawing device” is lifted up to the top of the fixed H-beam and inserted into the H-beam. On the other hand, in the conventional technology-2, the ``horizontal push insertion method'' is inserted into the H-beam by pushing the ``open space'' of the ``wedge compression type H-beam drawing device'' in the horizontal direction toward the H-beam. Therefore, the approaches that both'wedge compression H-beam drawing equipment' insert into the H-beam are different.

③ In the prior art-1, a large main hydraulic cylinder (5a) (5b) of the lower “wedge coupling structure” responds to the maximum pulling force in the initial pulling step, and the medium and small auxiliary hydraulic pressure on both sides of the upper “wedge coupling structure” The drawing operation is efficient and economical because the cylinder (8a) (8b) is a binary drawing structure that responds to the small drawing force in the subsequent drawing step, whereas the prior art-2 is a one-won drawing made of one ``wedge coupling structure''. Since it is a structure, the initial and subsequent stages are one-won drawing, so the initial maximum drawing force including the frictional force (F) of the underground H-beam is maintained as it is from the beginning to the end, so that the drawing structures and the drawing effects of the two are different from each other.

B) Problems of the prior art-2

① Unlike the prior art-1, which is divided into the initial stage and the subsequent stage, and shares the corresponding drawing force, the conventional technology-2 does not have such a means of sharing, so the H-beam is drawn as the maximum drawing force in the first stage. Since it is a structure, there is a problem that the drawing operation is inefficient and inefficient.

② In addition, the prior art-2 is a "horizontal push insertion method" of the "open space", unlike the prior art-1 of the "vertical upward insertion method" of "closed space". However, when the H-beam is approached by the "horizontal push insertion method", as shown in FIG. 2A, the "upper slope guidance road" is an escape guidance road of the moving wedge clamp 150. This is because H-beam access by the "horizontal push insertion method" is impossible if the moving wedge clamp 150 is not performed. At this time, the "horizontal push insertion" of the'wedge compression H-beam drawing equipment' is usually performed by a forkrain, and the upward escape of the moving wedge clamp 150 is performed by the clamp cylinder 140 (see Fig. 2A). ).

Looking at the problems of the prior art-2 due to the above "upper slope taxiway method" centering on Fig. 2c is as follows.

According to Fig. 2c, the "wedge coupling structure" of the wedge of the moving body and the wedge of the fixed body is formed on the line I-I. That is, the fixed wedge lower guide 161 and the movable wedge clamp 150 are wedge-coupled at line Ⅰ-Ⅰ. In this wedge-coupled state, the H-beam web is compressed.

Line II-II of FIG. 2C is a state in which the moving wedge clamp 150 of the line I-I is located above the upper guide 162. At this time, the width of A-A and C-C of line II-II are the same as the width of the flange (B) of the H-beam. The width S of the Ⅱ-Ⅱ line is wider than the width of the flange (B) of the H-beam. The H-beam web is located on the vertical bisector (V) of width S.

The moving wedge clamp 150 must be located at the width S of the Ⅱ-Ⅱ line away from the CC, so that the H-beam is passed through the E of the crimping space-O(J) of the'wedge crimping H-beam drawing equipment', and H -The beam is positioned (see Fig. 2a).

If the moving wedge clamp 150 does not escape to the width S of the Ⅱ-Ⅱ line, it will be caught by the H-beam, making it impossible to pass E through the compression space-O(J) of the “wedge compression H-beam drawing equipment”. At this time, the escape means of the moving wedge clamp 150 is the upper guide 162. The upper guide 162 is the "upper slope taxiway".

The shape of the compression space-O of the'wedge compression type H-beam drawing equipment' of the prior art-2 is a passageway on one side of the "U shape" as shown in Figs. 2A and 2B. "Horizontal push insertion method" is It is an insertion method that is pushed horizontally through the width E of the passageway on one side of the "open space".

As described above, the “wedge compression H-beam drawing equipment” of the prior art-2 is a “horizontal push insertion method” and a “upper slope induction escape method”.

Let's take a closer look at the problem of the “upper slope taxiway escape method”.

① “Upper slope evacuation method” is an essential element of “upper slope evacuation guidance” which is the long upper guide 162 of the moving wedge clamp 150. If there is no “upper slope evacuation road”, which is an escape means of the moving wedge clamp 150, the “wedge compression H-beam drawing device” is caught in the H-beam, making it impossible to enter. At this time, since the “upper sloped induction road” is a long path, there is a structural problem in that it takes a long time to ascend and evacuate the moving wedge clamp 150 to reduce the speed of the drawing operation.

② In addition, the capacity and weight of the clamp cylinder 140 that moves it in proportion to the path length increases due to the long escape route of the “upper slope evacuation road”, as well as the capacity of the mobile installation crane defense accordingly. Moving to the next drawing place and installation work is not as quick as that, and as a result, there is a problem that the drawing operation is inefficient and uneconomical.

③ The “upper incline evacuation method” of the prior art-2 is an arrangement structure in which the “upper incline evacuation road” extends long from the lower “wedge coupling structure” toward the upper part, so the center of gravity due to its weight faces upward. Therefore, there is a problem of conduction of the'wedge compression type H-beam drawing equipment' of'Prior Technology-2' when drawing the H-beam.

On the other hand, the common points between the prior art-1 and the prior art-2, which are'wedge compression H-beam drawing equipment', will be described with reference to Fig. 2a of the prior art-2.

According to Fig. 2a, the'wedge compression type H-beam drawing equipment' consists of a main structure and a sub structure.

The main structure is a base plate 110, a lifting plate 130, and a wedge assembly (W). The wedge assembly (W) is a combination of a fixed wedge and a moving wedge. According to FIG. 2C, the fixed wedge is the lower guide 161, and the movable wedge is the moving wedge clamp 150. The wedge compression force against the H-beam web is exerted by the wedge assembly (W).

The sub-structure is an elevating cylinder 120 and a wedge clamp cylinder 140.

Let's look at the operational relationship between the main structure and the sub structure.

First, there is a relationship in which the lifting plate 130 of the main structure is operated vertically by the lifting cylinder 120 against the base plate 110 (see FIG. 2D).

Second, in a state in which the wedge compression force of the wedge assembly (W) is exerted on the web of the H-beam, the underground H-beam is pulled out by the elevation of the elevator plate 130 (see FIG. 2D).

Third, when the wedge force of the wedge assembly (W) is exerted, the wedge assembly (W) is not only supported and fixed on the elevator plate 130, but also the downward movement of the movable wedge against the fixed wedge due to the wedge nature is no longer possible. Since it is an impossible structure, there is no means to cope with the excess increase in the frictional force (F) because there is no increase in the wedge pressing force corresponding to the excessive increase in the downward friction force of the H-beam.

Next, we will look at the common “basic H-beam drawing system” of the “wedge compression H-beam drawing equipment” consisting of a main structure and a sub structure.

In the state in which the lifting cylinder 120 is lowered, the underground H-beam is located in the center of the compression space of the wedge H-beam drawing device' in the underground H-beam, and in this state, the wedge combination of the fixed wedge and the moving wedge ( The wedge compression force by W) exerts the wedge compression force against the web of the H-beam, and at this time, the elevating cylinder 120 rises 1-stroke, so that the elevating plate 130 is also 1- The stroke is raised, and accordingly, the H-beam web in which the wedge compression force is exerted is also increased by 1-stroke, and the H-beam is also extracted by 1-stroke from the ground. This is the “basic H-beam drawing system”.

Here, the moving plate by the elevating cylinder 120 is the elevating plate 130, and the base plate 110 is a fixed plate.

In the wedge assembly (W), the vertical movement of the moving body wedge relative to the fixed body wedge is performed by the wedge clamp cylinder 140.

After the H-beam is drawn from the ground by the first rising stroke (this is referred to as 1-stroke), the elevating cylinder 120 is returned to the initial stage again for the residual H-beam still remaining in the ground, The H-beam is drawn out by the second rising stroke of the lifting and descending cylinder 120 (this is referred to as a 2-stroke).

Here, the first ascending stroke and the second ascending stroke are not continuous motions. This is because there must be a stage of preparation for “Sacred Seung → Return → Ascent”. For convenience of explanation, the present invention is also used as 1-stroke and 2-stroke, but this is the meaning.

The "basic H-beam drawing system" is a common wedge coupling structure drawing system of prior art-1 and prior art-2. This excludes the differences between the two inventions (differences in H-beam approach and related structures).

Next, a common problem of the "basic H-beam drawing system" of the wedge coupling structure will be described.

① Both inventions of the prior art-1 and the prior art-2 are structures in which weight is added from the lower “wedge coupling structure” to the upper side, so the center of gravity is located above, so the “wedge compression type H-beam of both inventions” There is a problem of conduction due to an unstable structure when drawing out the'drawing equipment'.

② In the prior art-1 and the prior art-2, when the wedge force of the wedge assembly (W) is exerted, the wedge assembly (W) is not only supported and fixed on the elevator plate 130, but also a moving body against the fixed wedge due to the nature of the wedge. There is a problem in that there is no means to cope with the excess increase of the frictional force (F) because there is no increase in the compression force of the wedge to respond to the excess increase in the downward friction force of the H-beam because it is a structure in which downward movement of the wedge is no longer possible.

⒜ The present invention is an organic coupling system in which the ``horizontal push insertion method'' and the ``friction force rotary compression method'' are integrated, making it easy to access H-beams, and at the same time, the conventional wedge force does not increase more than a certain amount due to the nature of the wedge. Unlike the wedge structure of the technology, the free end (Fe) at the triangular apex and the hinge end of the lower deflection angle (θ) in the state where the compressed ends of the free ends (Fe) of both sides of the rotary compression member 10 are in close contact with the web. As the triangular rotational structure is formed by (He), the downward frictional force (F) exerted during drawing is applied to the center of the triangular rotational structure, as well as the downward frictional force (F) during drawing at the center of the triangular rotating structure. The purpose is to ensure that the magnitude of the downward friction force (F) that is exerted by the rotational compression force of the compression ends of both free ends (Fe) is exerted as it is, as long as it is continuously acting,

⒝ In addition, four main lift hydraulic cylinders are installed on the moving lift plate, but two of them are arranged symmetrically on both sides based on the vertical line of the center line (K) of the open space (O). Another purpose is to make the center of gravity of the'drawing equipment' downward so that the'rotary compression type H-beam drawing equipment' has a stable prevention structure against the conduction of the H-beam drawing.

⒞ In addition, the ``horizontal push insertion method'' by the ``open space'' and the ``friction force rotation compression method'' by the triangular rotary compression structure are integrated and combined with the friction force rotary compression structure The rotational opening and closing structure of the sub-rotating hydraulic cylinder opens and closes the free end (Fe) of the rotary compression member, but the closed structure is a triangular rotation structure in which the free ends (Fe) are combined, and the open structure is the free end. Unlike the conventional technology in which an upward movement guide is essential, the (Fe) is made to be an open structure standing at a right angle with respect to the moving elevator plate 20, so that the rotation radius of the opening and closing structure is limited only to the rotary compression member, so the center of gravity of the opening and closing structure is reduced. There is another purpose in that it is located downward so that it is not only a stable structure to prevent from falling during drawing, but also the rotation of the opening and closing structure is quick so that the drawing operation can be performed efficiently and economically.

⒟ In the operating relationship of the four main lifting hydraulic cylinders arranged symmetrically in a straight line, two on each side based on the vertical line of the center line (K) of the open space, the maximum pulling force in the initial (friction force) pulling stage is 4 By the main lifting hydraulic cylinder and the pulling force of the small frictional force in subsequent stages, the two main lifting hydraulic cylinders provide a binary adjustment structure, and the ``friction force rotary compression method'' not only has a very small rotational opening and closing radius, but also 4 Due to the straight symmetrical arrangement of the dogs, the center of gravity arrangement is stabilized during drawing, preventing the drawing equipment from overturning, and at the same time, the H-beam drawing operation is made efficient and economical due to the binary adjustment drawing structure.

The configuration of the H-beam drawing equipment according to the present invention friction force rotary compression method will be described in detail as follows.

A main lift hydraulic cylinder 30 is installed between the fixed base plate 50 and the moving lift plate 20, and the moving lift plate 20 is moved with respect to the fixed base plate 50 by the main lift hydraulic cylinder 30. It is raised and lowered, and the main piston 34 of the main lifting hydraulic cylinder 30 is mounted on the fixed base plate 50, and the main cylinder 32 is installed and fixed on the moving lifting plate 20 to the H-beam drawing equipment. In

The same open grooves 24 and 52 are formed in the movable elevator plate 20 and the fixed base plate 50, respectively, and a "open space (O)" by the open grooves 24 and 52 Is formed, and the first and second mains of the first and second main lifting hydraulic cylinders 30 are on both sides of the moving elevator plate 20 based on the vertical line of the center line K of the open grooves 24 and 52. The cylinder 32, and on both sides of the fixed base plate 50, the first and second main pistons 34 corresponding to the main cylinder 32 are arranged symmetrically in a straight line, respectively, and the open groove 24 side is One end of the rotary compression member 10 is hinge-coupled to the moving lift plate 20 in front of the main cylinder 32 of 1, and the other end of the rotary compression member 10 is a free end (Fe ), and the compressed end of the contact web of both free ends (Fe) is a vertical line, and the vertical line divided by two of the thickness of the web coincides with the center line (K) of the open groove (24) (52), and at this time, the triangular vertex free A bilateral triangular rotational structure is formed by the end (Fe) and the low angle (θ) hinge end (He), while the hinge axis of both hinge ends (He) is centered by the expansion and contraction of the two sub-rotating hydraulic cylinders (40). The rotational opening and closing of both sides of the rotary compression member 10 is made, but the sub cylinders 42 of the sub rotary hydraulic cylinder 40 are on both sides of the upper side of the second main lift hydraulic cylinder 30, and the sub rotary hydraulic cylinder corresponding thereto The sub-piston 44 of (40) is an H-beam drawing equipment according to the frictional force rotary compression method, characterized in that the hinges are coupled to both sides of the surface portion (14) of the rotary compression member (10).

Here,

Two main lift hydraulic cylinders 30 at both sides of the moving lift plate 20 based on the vertical line of the center line K of the open grooves 24 and 52 of the moving lift plate 20 and the fixed base plate 50. ) Of the main cylinder 32, and two at each side of the fixed base plate 50 corresponding thereto, the main piston 34 in a straight line, and the symmetrical arrangement line is the center line CL. It is an H-beam drawing equipment by

In addition,

The bottom inclined portion 12 of the rotary compression member 10 of the triangular rotary structure with respect to the moving elevator plate 20 with the compression ends of the free ends (Fe) on both sides of the triangular rotation structure in close contact with the web ) To form a lower stopper 122, but the H-beam drawing equipment by the frictional force rotary compression method, characterized in that the movable elevator plate 20 and the spacing e are 4 ~ 6mm.

At this time, the lower stopper 122 functions as a stop of the rotary compression member 10 with respect to the moving elevator plate 20. The separation distance e from the moving elevator plate 20 is preferably 4 to 6 mm.

Not only that,

A reinforcing plate 326 wrapped around the curved surface of the second main lift hydraulic cylinder 30 is welded and fixed at the position of the second main lift hydraulic cylinder 30 to which the sub cylinder 42 of the sub rotary hydraulic cylinder 40 is hinged. , The sub-cylinder 42 of the sub-rotating hydraulic cylinder 40 is hinged to the reinforcing plate 326, while the sub-piston 44 of the sub-rotating hydraulic cylinder 40 is hinge-coupled to the rotary compression member 10 It is an H-beam drawing equipment by a frictional force rotational compression method, characterized in that the rotational length hole (142a) of the rotation bracket 142 of the surface portion 14 of ).

In the method of exerting the H-beam pressing force of the H-beam drawing equipment, the prior art is the "wedge pressing method", whereas the present invention is the "friction force rotary pressing method".

Although the methods of exerting compression are different from each other, they are the same in the "basic structure" of the drawing equipment for their exertion. The "basic structure" will be described as follows.

The "basic structure" is composed of a fixed base plate 50, a moving lift plate 20, and a main lift hydraulic cylinder 30 installed therebetween, and the main lift hydraulic cylinder 30 with respect to the fixed base plate 50 ), the moving elevator plate 20 is lifted and lowered, and at this time, the underground H-beam is pulled out with the rise of the moving lift plate 20, while the main piston 34 of the main lift hydraulic cylinder 30 is a fixed base That is, the structure in which the plate 50 and the main cylinder 32 are vertically installed and fixed to the moving elevator plate 20, respectively.

The characteristics of the present invention are based on the "basic structure" and in the "integrated organic bond" of the "friction force rotation compression method" and the "horizontal push insertion method".

1) First, the “integrated organic bonded bond” of the present invention will be described as follows.

A) The present invention "friction force rotary compression method"

Unlike the "wedge compression method" based on the wedge coupling structure, the "friction force rotation compression method" is a "rotation voltage bonding method" based on the downward friction force (F) of the H-beam exerted during drawing (see Fig. 3c).

The "rotation voltage bonding method" of the present invention is a method operated by a rotating structure and a downward friction force (F).

The rotation structure is a triangular rotation structure. This triangular rotating structure is a structure made of two rotary compression members 10 whose one end is a hinge end (He) and the other end is a free end (Fe).

It is applied to the downward friction force (F) exerted when drawing it to the center of the triangular rotating structure.

By the downward friction force F, the compressed ends of the free ends Fe of the both rotary compression members 10 are rotated and pressed toward the web (see Fig. 3C).

Here,

Unlike the ``wedge crimping method'', which is a structure in which downward movement of the moving wedge is no longer possible with respect to the fixed wedge due to the nature of the wedge, the ``friction force rotation compression method'' has a triangular rotational structure, so the downward friction force (F) exerted during drawing is reduced. As long as it is applied to the center of the triangular rotating structure, the pressing force of the compressed end of the free end (Fe) against the web is exerted by the rotational pressure of the compressed end of both free ends (Fe) as it is exerted. There is also an advantage that continues to be exerted.

In the "friction force rotary compression method" of the triangular rotation structure, the maximum downward friction force (Fmax) is exhibited in the initial drawing stage. At this time, the compressive force of the crimp end of the free end (Fe) is also maximized. After that, the downward friction force (F) exerted in the drawing step becomes smaller than the maximum downward friction force (Fmax), so that the pressing force of the compressed end portion of the free end (Fe) is also reduced. The triangular rotational structure has a high durability of the compression end of the free end Fe because the compression force is variable according to the downward friction force F, and at the same time has an efficient economic advantage.

On the other hand, the "wedge compression method" is a method of the maximum compression force against the maximum wedge force due to the nature of the wedge. If the drawing is performed while the maximum downward frictional force (Fmax) is exerted in the initial drawing stage, it is drawn with the maximum downward frictional force (Fmax) even in the subsequent drawing stage, so the compression force according to the downward frictional force (F) is non-variable and thus the free end (Fe) There is a problem that the durability of the crimp end of the crimped end is deteriorated, and at the same time, it becomes inefficient and economically.

On the other hand, this triangular rotating structure is a structure made of two rotary compression members 10 whose one end is a hinge end (He) and the other end is a free end (Fe).

The above triangular rotation structure is rotated around the A-axis (see Fig. 3a) of the hinge end (He), and first, the case where the free ends (Fe) of the two rotary compression members 10 are joined at the triangular vertex. , Second, the case where the free end (Fe) is standing at a right angle with respect to the moving elevator plate (20). When the free end (Fe) is combined, it is a closed structure of a triangular rotational structure, and when the free end (Fe) is open, it is an open structure without a triangular rotational structure. It is preferable that the two rotary compression members 10 joined together in the closed structure of the triangular rotation structure are spaced apart from each other (see FIG. 3C). At this time, the interval is preferably 2 ~ 3mm.

The free end (Fe) is opened and closed by the expansion and contraction of the rotary hydraulic cylinder 40.

The expansion and contraction of the sub rotary hydraulic cylinder 40 has no other function other than opening and closing the free end (Fe). The web compression force is exerted by the closed structure of the complete triangular rotational structure in which the free ends (Fe) are joined, and formed on the fixed base plate 50 and the moving elevator plate 20 by the open structure in which the free ends (Fe) stand. Through the open grooves 24 and 52, "horizontal push insertion" of the H-beam drawing device is possible. This is because the open structure of the free end (Fe) does not interfere with the entry of the drawing equipment.

The sub cylinders 42 of the two sub rotary hydraulic cylinders 40 are on both upper sides of the second main lift hydraulic cylinder 30, and the sub pistons 44 of the sub rotary hydraulic cylinders 40 corresponding thereto are rotationally compressed. The member 10 is hinged to both sides of the surface portion 14, respectively.

B) The present invention "horizontal push insertion method"

The H-beam drawing device is horizontally passed through and inserted into the H-beam protrusion through the fixed base plate 50 and the open grooves 24 and 52 formed in the movable elevator plate 20. This insertion method is the "horizontal push insertion method".

The H-beam drawing device enters the open width E of the open grooves 24 and 52 and is located in the center of the entry length L (see Fig. 3A). The entry is made in an open structure without a triangular rotating structure. At this time, the web of the H-beam is located in the center of the entry length L. After entering, the end of the free end (Fe) rotates and adheres to the web in a closed structure of a triangular rotational structure.

Since the triangular rotational structure is a structure formed over the open grooves 24 and 52 of the H-beam drawing equipment, the H-beam drawing equipment is not possible in the closed structure. This is because the rotary compression member 10 spanning both open grooves 24 and 52 blocks the access road. The horizontal entry is possible only in open structures.

C) The relationship of the “integrated organic bond” between the “friction force rotary compression method” and the “horizontal push insertion method” of the present invention

The present invention is a "integrated organic bond" of the "horizontal push insertion method" and the "friction force rotary compression method". This is because the “horizontal push insertion method” is an essential method that is indispensable to the “friction force rotary compression method”.

In the "integrated organic bonding bond" of the present invention, the "horizontal push insertion method" must first be performed before the web pressing force by the "friction force rotary compression method" is exerted.

This is because the web must be located in the center of the entry length L by entering the H-beam protrusion through the open width E of the open grooves 24 and 52 of the H-beam drawing device. At this time, when entering the H-beam drawing equipment, it is made in an open structure without a triangular rotation structure. This open structure is a case where the free end (Fe) of the rotary compression member 10 is standing upright at a right angle with respect to the moving elevator plate 20 due to the contraction of the sub rotary hydraulic cylinder 40, and the open grooves 24, 52 It is completely open without obstacles to entry. The size of the rotation radius area of the free end (Fe) of the rotary compression member 10 due to the contraction of the sub rotary hydraulic cylinder 40 is extremely small enough to be located under the main lift hydraulic cylinder 30 As the center of gravity of 10) is not upwardly but positioned downward, it is not only a stable structure to prevent fall, but also has the advantage of quick and efficient drawing operation due to its short rotation radius.

On the other hand, the ``horizontal push insertion method'' and the ``friction force rotary compression method'', which is an organic combination, is a ``rotation voltage bonding method'' by the downward friction force (F) of the H-beam that is exerted during drawing. It is a completely different method from the “wedge compression method”

Not only that,

As long as the exerted downward friction force (F) is applied to the triangular center, the triangular rotational structure in which the rotational compression force of the compression end of the free end (Fe) is continuously exerted variably and the non-variable ``wedge structure'' by the wedge force It is a different structure.

2) Next, the straight symmetric arrangement of the four main cylinders will be described as follows.

The first and second sets of the main lifting hydraulic cylinder 30 are symmetrically arranged on both sides of the open groove 24 in a straight line. The first and second main cylinders are fixed on the moving elevator plate 20, and the main cylinder 32 is fixed on the fixed base plate 50. As the four main lifting hydraulic cylinders 30 are arranged in a straight line, it is stable against the conduction of the'rotary compression type H-beam drawing equipment' when the greatest force is exerted. It is preferable that the four main lifting hydraulic cylinders 30 are located in the center line C.L of the groove part 24 in which a straight line is opened. This is because it is stable to prevent from falling.

The operation of the four main lifting hydraulic cylinders 30 arranged in a straight line is used in the initial stage when the maximum pulling force is exerted. The initial stage is due to the frictional force of the underground H-beam. After the initial stage, only two are symmetrically operated. This is because only two operations are sufficient for the pulling friction force. As described above, the present invention is a dual adjustment of the four main lifting hydraulic cylinders 30 in a straight line. This is for the efficiency of drawing because the initial frictional force and the drawing force by the subsequent frictional force are different from each other.

3) Next, the Bra-R hinge coupling will be described collectively as follows.

The rotary compression member 10 is an opening and closing structure by rotation.

The rotational opening and closing structure of the rotational compression member 10 is a rotational structure formed in three places. The three rotational structures are A, B, and C in Figs. 3A, 4A, and 5A.

A denotes an open/close rotation shaft of the rotary compression member 10, B denotes an open/close rotation pushing and pulling the rotary compression member 10, and C denotes a fixed rotary shaft.

A is a rotary compression member 10 having a hinge shaft hole 16 is inserted between the hinge brackets 22 on both sides having a shaft hole 22a fixed to the movable elevator plate 20.

At this time, both ends of the hinge shaft 162 inserted into the hinge shaft hole 16 of the rotary compression member 10 protrude through the shaft holes 22a of the hinge brackets 22 on both sides and are fixed with nuts. The hinge shaft 162 fixed with a nut is an opening/closing shaft of the rotary compression member 10. The rotary compression member 10 is opened and closed around the hinge shaft 162.

B is a state in which the rotation hole 142a of the rotation bracket 142 fixed to the surface portion 14 of the rotation compression member 10 and the rotation hole of the sub piston 44 of the sub rotation hydraulic cylinder 40 match The hinge shaft 46 is inserted in the rotating structure.

C is a rotation bracket 322 having a rotation hole 324 is fixed to the upper portion of the main cylinder 32, the rotation hole 422 of the sub cylinder 42 corresponding to the rotation hole 324 of the main cylinder 32 ) Is a fixed rotation structure in which the rotation shaft 326 is inserted in the matched state.

The rotation bracket (322) is directly welded to the main cylinder (32)? Instead of being fixed, it is preferable that the reinforcing plate 328 is added to the main cylinder 32 by welding, and the rotation bracket 322 is fixed to the reinforcing plate 328 (see Fig. 3A). This is to prevent damage to the main cylinder (32).

4) Next, the H-beam drawing process will be described by the'rotation compression type H-beam drawing equipment' of the present invention.

A) Preparing step of the present invention'Rotation compression type H-beam drawing equipment'

① The gap between the moving lift plate 20 with respect to the fixed base plate 50 is minimized.

② By the reduction of the sub-rotating hydraulic cylinder 40, the rotary compression member 10 of the triangular rotation structure is completely opened.

B) Entry stage of the drawing equipment of the present invention to the underground H-beam

① Enter the underground H-beam through the open groove 24 of the'rotary compression H-beam drawing equipment' of the present invention.

C) Underground H-beam drawing preparation and drawing stage

① Due to the expansion and extension of the sub-rotating hydraulic cylinder 40, the tip crimping portion 13 of the rotary crimping member 10 having a triangular rotational structure crushes the web of the H-beam.

② In the initial stage, the four main lifting hydraulic cylinders 30 are operated. At this time, as the first 1-stroke of the main piston 34 of the fixed base plate 50 is elongated, the H-beam is drawn along with the overcoming of the ground friction of the H-beam.

D) Steps for elongation and drawing of the second 2-stroke

① In the extended state of the first 1-stroke in which the web of the H-beam is squeezed by the tip crimping part 13, the web crimping of the tip crimping part 13 is released, and the rotary crimping member 10 of the triangular rotation structure is again Make it completely open. At this time, the complete opening of the rotary compression member 10 is made by the reduction of the sub rotary hydraulic cylinder (40).

② The four elongated main lift hydraulic cylinders 30 are reduced. At this time, the moving lifting plate 20 is positioned at a minimum interval with respect to the fixed base plate 50 again.

③ Due to the expansion and extension of the sub-rotating hydraulic cylinder 40, the tip crimping portion 13 of the rotary crimping member 10 having a triangular rotational structure presses the web of the H-beam again.

④ Since initial friction is overcome, only two of the four main lifting hydraulic cylinders 30 operate symmetrically and the H-beam is drawn out. This is the second two-stroke drawing. 1, 2-stroke drawing is the two-won adjustment.

After the H-beam is drawn from the ground by the first rising stroke (this is referred to as 1-stroke), the elevating cylinder 120 is returned to the initial stage again for the residual H-beam still remaining in the ground, The H-beam is drawn out by the second rising stroke of the lifting and descending cylinder 120 (this is referred to as a 2-stroke).

Here, the first ascending stroke and the second ascending stroke are not continuous motions. This is because there must be a stage of preparation for “Sacred Seung → Return → Ascent”. For convenience of explanation, the present invention is also used as 1-stroke and 2-stroke, but this is the meaning.

⑤ For a long underground H-beam, all strokes after the first 1-stroke drawing are the same as the second 2-stroke. This is because the second 2-stroke is a binary adjustment in which only two main lifting hydraulic cylinders 30 are operated for the first 1-stroke.

⑥ All 2-strokes are drawn by the repetition above.

Unlike the ``wedge compression method'' by the wedge assembly, the ``friction force rotary compression method'' as shown above is due to the downward frictional force (F) of the H-beam exerted during drawing, and the free end (Fe) of the rotary compression member 10 ) Is a rotary compression method that rotates and presses (compresses) (see FIGS. 3C and 5A).

At this time, the downward friction force (F) of the H-beam is maximized in the initial stage of drawing. After that, the downward friction force F becomes small. The downward friction force F is exerted during drawing. As long as the downward friction force F is exerted, the compressed ends of both free ends Fe are pressed against the web. When the downward friction force (F) is maximum, the magnitude of the rotational compression force of both free ends (Fe) becomes maximum.

According to Fig. 3c, the downward friction force (F) of the H-beam is applied to the center of the triangular compression structure during drawing. The free end Fe of the rotary compression member 10 is rotated and pressed toward the web by this downward friction force F.

When rotating around the hinge shaft 162 of the hinge end, the free end (Fe) of the rotary compression member 10 is rotated and pressed toward the web.

⒜ The present invention is an organic coupling system in which the ``horizontal push insertion method'' and the ``friction force rotary compression method'' are integrated, making it easy to access H-beams, and at the same time, the conventional wedge force does not increase more than a certain amount due to the wedge nature. Unlike the wedge structure of the technology, the free end (Fe) at the triangular apex and the hinge end of the lower deflection angle (θ) in the state where the compressed ends of the free ends (Fe) of both sides of the rotary compression member 10 are in close contact with the web. As the triangular rotational structure is formed by (He), the downward frictional force (F) exerted during drawing is applied to the center of this triangular rotational structure, as well as the downward frictional force (F) during drawing at the center of the triangular rotational structure. As long as it is continuously acting, there is an effect that the magnitude of the downward friction force (F) exerted by the rotational compression force of the compression ends of both free ends (Fe) is exerted as it is,

⒝ In addition, four main lift hydraulic cylinders are installed on the moving lift plate, but two of them are arranged symmetrically on both sides based on the vertical line of the center line (K) of the open space (O). The center of gravity of the'drawing equipment' is made downward so that it has the effect of becoming a stable prevention structure against the conduction of the'rotary compression type H-beam drawing equipment' when drawing the H-beam.

⒞ Not only that, but also the ``horizontal push insertion method'' by ``open space (O)'' and the ``friction force rotation compression method'' by the triangular rotation compression structure are integrated and combined in the old beginning. The rotational opening/closing structure of the rotary compression structure allows the opening and closing of the free end (Fe) of the rotary compression member by the expansion and contraction of the sub rotary hydraulic cylinder, but the closed structure is a triangular rotation structure in which the free ends (Fe) are combined, and its open structure. The free end (Fe) has an open structure that stands at a right angle to the moving elevator plate 20, so unlike the prior art in which an upward moving guide is essential, the rotation radius of the open/close structure is limited only to the rotary compression member. The center of gravity is located downward, so it is not only a stable structure to prevent from falling during drawing, but also the rotation of the opening and closing structure is quick, so that the drawing operation is efficient and economical.

⒟ The maximum pulling force of the initial (friction force) pulling step in the operating relationship of the four main lift hydraulic cylinders arranged symmetrically in a straight line, two on each side based on the vertical line of the center line (K) of the open space (O). For the case, the two main lifting and lowering hydraulic cylinders are used to adjust the structure for the two main lifting and lowering hydraulic cylinders, and for the pulling force of the small frictional force in the subsequent stages, and the ``friction force rotary compression method'' has an extremely small rotational opening and closing radius. In addition, due to the four straight symmetrical arrangements, the center of gravity arrangement is stabilized during drawing, preventing the drawing equipment from overturning, and at the same time, the H-beam drawing operation is efficient and economical due to the binary adjustment and drawing structure.

[Fig. 1a] A cross-sectional perspective view of a binary drawing structure using a large main hydraulic cylinder (5a) (5b) and a small auxiliary hydraulic cylinder (8a) (8b) in the wedge compression H-beam drawing equipment of the prior art-1
[Fig. 1B] A cross-sectional view taken along line AA in Fig. 1A
[Fig. 2a] A perspective view showing a one-won drawing structure in which the H-beam is drawn with the maximum drawing force of the initial stage in the wedge compression H-beam drawing equipment of the prior art-2 and the structure of the upper inclined taxiway method
[Fig. 2B] A plan view of Fig. 2A.
[Fig. 2c] A cross-sectional perspective view showing the compression relationship between the upper inclined induction road system structure of the conventional technology-2 wedge compression H-beam drawing equipment and the H-beam
[Fig. 2d] A process diagram showing a process in which the underground H-beam is drawn by the wedge compression type H-beam drawing equipment of the prior art-2
[Figure 3a] A perspective view of an H-beam drawing equipment according to the present invention frictional force rotary compression method
[Fig. 3b] The free ends (Fe) of both sides of the rotary compression member 10 of the present invention are rotated and closed in a triangular rotational structure around the hinge axis A? Cross-sectional state diagram showing the exertion of rotational compression force
[Fig. 3c] The free ends (Fe) of both sides of the rotary compression member 10 of the present invention rotate around the hinge axis A by the friction force (F) of the H-beam. Sectional state diagram showing the appearance of the compression force on the web
[Fig. 4a] A perspective view showing a state in which the present invention H-beam drawing equipment in which both sides of the rotary compression member 10 are completely opened enter the underground H-beam protrusion by the "horizontal push insertion method"
[Fig. 4b] A cross-sectional state diagram showing the completely open state of both sides of the rotary compression member 10 for the preparation of the "horizontal push insertion method" of the H-beam drawing equipment of the present invention
[Fig. 5a] A state in which the rotational compression members 10 on both sides of the triangular rotational structure are rotationally compressed against the web due to the downward frictional force (F) exerted during the pulling by the lifting force (P) of the main lifting hydraulic cylinder 30 A perspective view of the present invention shown
[Fig. 5B] Front view of Fig. 5A

The configuration of the H-beam drawing system according to the present invention friction force rotary compression method will be described with reference to the drawings.

A main lift hydraulic cylinder 30 is installed between the fixed base plate 50 and the moving lift plate 20, and the moving lift plate 20 is moved with respect to the fixed base plate 50 by the main lift hydraulic cylinder 30. It is raised and lowered, and the main piston 34 of the main lifting hydraulic cylinder 30 is mounted on the fixed base plate 50, and the main cylinder 32 is installed and fixed on the moving lifting plate 20 to the H-beam drawing equipment. In

The ``horizontal push insertion method'' and the ``friction force rotary compression method'' are integrated and combined systems, and the opening width (E) and entry length formed on the fixed base plate 50 and the moving elevator plate 20 of the H-beam drawing equipment The "horizontal push insertion method" is achieved by the open grooves 24 and 52 having (L), and at the same time, the moving elevator plates 20 on both sides of the open grooves 24 and 52 are One end of the rotary compression member 10 is a hinge end (He), the other end of the rotary compression member 10 is a free end (Fe), and the compression ends of both free ends (Fe) are in close contact with the web. In this state, the free end (Fe) at the triangular apex and the hinge end (He) of the lower angle of change (θ) form a two-equal triangular rotation structure, so that the downward friction force (F) exerted upon drawing is this triangular rotation. As long as the downward friction force (F) at the time of drawing is continuously applied to the center of the triangular rotational structure as well as acting on the center of the structure, the rotational compression force of the compressed ends of both free ends (Fe) is the downward friction force (F). Correspondence is exerted as it is, and the rotational opening and closing of the free ends (Fe) of the rotary compression members 10 on both sides is made by the extension of the sub rotary hydraulic cylinder 40, and one end of the sub rotary hydraulic cylinder 40 is a second The upper side of the main lifting hydraulic cylinder 30 and its other end are hinged to the surface portion 14 of the rotary compression member 10, while the compression ends of both free ends (Fe) are in close contact with the web. The vertical line of the web thickness is equal to the center line (K) of the open groove (24) (52), and moves based on the vertical line of the center line (K). The first and second main lifts on both sides of the elevator plate 20 The first and second main cylinders 32 of the hydraulic cylinder 30 and the first and second main pistons 34 corresponding to the main cylinders 32 on both sides of the fixed base plate 50 are aligned in a straight line, respectively. By symmetrical arrangement, for the maximum downward friction force (Fmax) in the initial stage when drawing the H-beam, all four of the first and second main lifting hydraulic cylinders 30 on both sides operate, and the small downward friction force (F) in the subsequent stages For the first and second main wins on both sides Operate for the size of downward friction force (F) by symmetrically selecting and operating only one of the ferrohydraulic cylinders 30. It is not only easy and efficient to adjust the number of the main lifting and hydraulic cylinders 30, but also both sides of a straight symmetrical arrangement. It is an H-beam drawing system based on a rotating shaft method, characterized in that the center of gravity of the first and second main pistons 34 is positioned downward to prevent fall during drawing.

Here,

Two main lift hydraulic cylinders 30 at both sides of the moving lift plate 20 based on the vertical line of the center line K of the open grooves 24 and 52 of the moving lift plate 20 and the fixed base plate 50. ) Of the main cylinder 32, and two at each side of the fixed base plate 50 corresponding thereto, the main piston 34 in a straight line, and the symmetrical arrangement line is the center line CL. H-beam drawing system by

In addition,

The bottom inclined portion 12 of the rotary compression member 10 of the triangular rotary structure with respect to the moving elevator plate 20 with the compression ends of the free ends (Fe) on both sides of the triangular rotation structure in close contact with the web It is an H-beam drawing system by a frictional force rotational compression method, characterized in that the lower stopper 122 is formed in ), but the movable elevator plate 20 and the spacing e are 4-6mm.

Not only that,

A reinforcing plate 326 wrapped around the curved surface of the second main lift hydraulic cylinder 30 is welded and fixed at the position of the second main lift hydraulic cylinder 30 to which the sub cylinder 42 of the sub rotary hydraulic cylinder 40 is hinged. , The sub-cylinder 42 of the sub-rotating hydraulic cylinder 40 is hinged to the reinforcing plate 326, while the sub-piston 44 of the sub-rotating hydraulic cylinder 40 is hinge-coupled to the rotary compression member 10 It is an H-beam drawing system by a frictional force rotational compression method, characterized in that the rotational length hole 142a of the rotation bracket 142 of the surface portion 14 of ).

As described above, the present invention provides a rotational compression force of a triangular rotational structure proportional to the size of the downward frictional force (F) when drawing through an organic coupling system in which the ``horizontal push insertion method'' and the ``friction force rotational compression method'' are integrated. While this response is exhibited, the maximum pulling force of the initial (friction force) pulling stage in the operating relationship of the four main lift hydraulic cylinders arranged symmetrically in a straight line is obtained by the four main lift hydraulic cylinders, and the pulling force of the small frictional forces at the subsequent stages. The two main lifting hydraulic cylinders provide a binary adjustment structure, and the ``friction force rotary compression method'' has an extremely small rotational opening/closing radius as well as four straight symmetrical arrangements to stabilize the center of gravity when drawing. It is a useful invention that prevents the overturning of the H-beam and at the same time makes the H-beam pulling operation efficient and economical due to the two-way adjustment and operation structure.

10; Rotary compression member 10, 12; Bottom inclined portion 12, 122; Lower stopper 122, 13; Tip pressing portion 13, 14; Surface portion 14, 142; Rotation bracket 142, 142a; Rotating long hole (142a), 115; Rear rotating surface portion, 16; Hinge shaft hole 16, 162; Hinge shaft (162),
20; A moving elevator plate 20, 22; Hinge bracket, 22a; Construction,
24; Open groove (24),
30; Main lifting hydraulic cylinder 30, 32; Main cylinder 32, 322; Rotation bracket 322, 324; Rotary hole 324, 326; Rotation shaft 326, 328; Reinforcing plate 328, 34; Main piston (34),
40; Sub rotary hydraulic cylinder 40, 42; Sub-cylinder 42, 422; Rotary hole 422,
44; Sub-piston 44, 442; Rotary hole 442, 46; Hinge shaft(46)
50; Fixed base plate 50, 52; Open groove 52,

Claims (8)

delete A main lift hydraulic cylinder 30 is installed between the fixed base plate 50 and the moving lift plate 20, and the moving lift plate 20 is moved with respect to the fixed base plate 50 by the main lift hydraulic cylinder 30. It is raised and lowered, and the main piston 34 of the main lift hydraulic cylinder 30 is on the fixed base plate 50, the main cylinder 32 is fixed on the moving lift plate 20, and the moving lift plate 20 and the fixed In the H-beam drawing equipment in which the same open grooves 24 and 52 are installed and fixed in the base plate 50,

The first and second main cylinders 32 of the first and second main lifting hydraulic cylinders 30 are on both sides of the moving elevator plate 20 based on the vertical line of the center line K of the open grooves 24 and 52. ), and on both sides of the fixed base plate 50, the first and second main pistons 34 corresponding to the main cylinder 32 are arranged symmetrically in a straight line, respectively, and the first main piston toward the open groove 24 On both sides of the moving lift plate 20 in front of the cylinder 32, one end of the rotary compression member 10 is a hinge end (He), and the other end of the rotary compression member 10 is a free end (Fe), The crimping ends of the two free ends (Fe) with respect to the contact web are a vertical line, and the two-half vertical line of the web thickness coincides with the center line (K) of the open grooves (24) and (52). ) And a low angle (θ) hinge end (He) to create a bilateral triangular rotational structure, while the two sub-rotating hydraulic cylinders (40) are stretched and rotated around the hinge axis of both hinge ends (He) The crimping member 10 is rotated open and closed, but the sub-cylinders 42 of the sub-rotating hydraulic cylinder 40 are located on both upper sides of the second main lifting hydraulic cylinder 30, and the sub-rotating hydraulic cylinder 40 corresponding thereto. The sub-piston 44 is hinged to both sides of the surface portion 14 of the rotary compression member 10, and also the open groove portions 24 and 52 of the movable lifting plate 20 and the fixed base plate 50 Two main cylinders 32 of the main lift hydraulic cylinder 30 are provided on both sides of the moving lift plate 20 based on the vertical line of the center line K, and 2 on both sides of the fixed base plate 50 corresponding thereto. H-beam drawing equipment by frictional force rotation compression method, characterized in that the main pistons 34 are aligned and the symmetrical arrangement line is the center line CL According to claim 2
The bottom inclined portion 12 of the rotary compression member 10 of the triangular rotary structure with respect to the moving elevator plate 20 with the compression ends of the free ends (Fe) on both sides of the triangular rotation structure in close contact with the web ) To form the lower stopper 122, but the H-beam drawing equipment according to the "friction force rotary compression method", characterized in that the movable elevator plate 20 and the spacing e are 4~6mm According to claim 2
A reinforcing plate 326 wrapped around the curved surface of the second main lift hydraulic cylinder 30 is welded and fixed at the position of the second main lift hydraulic cylinder 30 to which the sub cylinder 42 of the sub rotary hydraulic cylinder 40 is hinged. , The sub-cylinder 42 of the sub-rotating hydraulic cylinder 40 is hinged to the reinforcing plate 326, while the sub-piston 44 of the sub-rotating hydraulic cylinder 40 is hinge-coupled to the rotary compression member 10 ) H-beam drawing equipment by the frictional force rotary compression method, characterized in that the rotational length hole (142a) of the rotation bracket 142 of the surface portion 14 of A main lift hydraulic cylinder 30 is installed between the fixed base plate 50 and the moving lift plate 20, and the moving lift plate 20 is moved with respect to the fixed base plate 50 by the main lift hydraulic cylinder 30. It is raised and lowered, and the main piston 34 of the main lifting hydraulic cylinder 30 is mounted on the fixed base plate 50, and the main cylinder 32 is installed and fixed on the moving lifting plate 20 to the H-beam drawing equipment. In
The ``horizontal push insertion method'' and the ``friction force rotary compression method'' are integrated and combined systems, and the opening width (E) and entry length formed on the fixed base plate 50 and the moving elevator plate 20 of the H-beam drawing equipment The "horizontal push insertion method" is achieved by the open grooves 24 and 52 having (L), and at the same time, the moving elevator plates 20 on both sides of the open grooves 24 and 52 are One end of the rotary compression member 10 is a hinge end (He), the other end of the rotary compression member 10 is a free end (Fe), and the compression ends of both free ends (Fe) are in close contact with the web. In this state, the free end (Fe) at the triangular apex and the hinge end (He) of the lower angle of change (θ) form a two-equal triangular rotation structure, so that the downward friction force (F) exerted upon drawing is this triangular rotation As long as the downward friction force (F) at the time of drawing is continuously applied to the center of the triangular rotational structure as well as acting on the center of the structure, the rotational compression force of the compressed ends of both free ends (Fe) is the downward friction force (F). Correspondence is exerted as it is, and the rotational opening and closing of the free ends (Fe) of the rotary compression members 10 on both sides is made by the extension of the sub rotary hydraulic cylinder 40, and one end of the sub rotary hydraulic cylinder 40 is a second The upper side of the main lifting hydraulic cylinder 30 and its other end are hinged to the surface portion 14 of the rotary compression member 10, while the compression ends of both free ends (Fe) are in close contact with the web. The vertical line of the web thickness is equal to the center line (K) of the open groove (24) (52), and moves based on the vertical line of the center line (K). The first and second main lifts on both sides of the elevator plate 20 The first and second main cylinders 32 of the hydraulic cylinder 30 and the first and second main pistons 34 corresponding to the main cylinders 32 on both sides of the fixed base plate 50 are aligned in a straight line, respectively. By symmetrical arrangement, for the maximum downward friction force (Fmax) in the initial stage when drawing the H-beam, all four of the first and second main lifting hydraulic cylinders 30 on both sides are operated, and a small downward friction force (F) in the subsequent stages. For the first and second main lift on both sides Operate for the size of the downward friction force (F) by symmetrically selecting and operating only one of the hydraulic cylinders 30. It is easy and efficient to adjust the number of the main lift hydraulic cylinders 30, as well as the two sides of a straight symmetrical arrangement. H-beam drawing system using the rotating shaft method, characterized in that the center of gravity of the first and second main pistons 34 is located downward, so that it is a stable structure to prevent fall during drawing. The method of claim 5
Two main lift hydraulic cylinders 30 at both sides of the moving lift plate 20 based on the vertical line of the center line K of the open grooves 24 and 52 of the moving lift plate 20 and the fixed base plate 50. ) Of the main cylinder 32, and two at each side of the fixed base plate 50 corresponding thereto, the main piston 34 in a straight line, and the symmetrical arrangement line is the center line CL. H-beam drawing system by The method of claim 5
The bottom inclined portion 12 of the rotary compression member 10 of the triangular rotary structure with respect to the moving elevator plate 20 with the compression ends of the free ends (Fe) on both sides of the triangular rotation structure in close contact with the web ) To form the lower stopper 122, but the H-beam drawing system by the frictional force rotary compression method, characterized in that the movable elevator plate 20 and the spacing e are 4~6mm The method of claim 5
A reinforcing plate 326 wrapped around the curved surface of the second main lift hydraulic cylinder 30 is welded and fixed at the position of the second main lift hydraulic cylinder 30 to which the sub cylinder 42 of the sub rotary hydraulic cylinder 40 is hinged. , The sub-cylinder 42 of the sub-rotating hydraulic cylinder 40 is hinged to the reinforcing plate 326, while the sub-piston 44 of the sub-rotating hydraulic cylinder 40 is hinge-coupled to the rotary compression member 10 ) H-beam drawing system by the friction force rotation compression method, characterized in that the rotational length hole (142a) of the rotation bracket 142 of the surface portion 14 of

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