KR20230096362A - H-beam pullout machinery of pressing a pressuring member and a web by a adjustment type and compensation type - Google Patents

Abstract

In the present invention, the unavoidable eccentric asymmetric expansion of the hydraulic system is healed by a "correction structure" to "symmetric straight parallel" expansion, and the first and second lift cylinders (110-1, -2) (120-1, -2) Not only does the size of the four cylinders and their lifting force exert the same structure, but also the four first and second lift cylinders (110-1, -2) (120-1, Unlike the prior art of the limited double structure, -2) is a complete double structure that is pulled out to the end, and between (110-1) and (110-2) of the first lift cylinder and (120-1) of the second lift cylinder The vertical lifting force of the first and second lift cylinders 110-1, -2 (120-1, -2) is increased by the "compensation structure" in which the separation distance (S) between the and (120-2) is efficiently adjusted. On the other hand, the adjustment of the operating force for the initial pulling force of the H-beam, which is required to the maximum due to the initial frictional force, and the pulling force after the frictional force is reduced, is different from the conventional "elevating and descending cylinder adjustment method". It is an efficient and economical invention that draws out the H-beam because it is easily performed by the "web pressure plate hinge method" and the adjustment and handling are simple.

Description

H-beam pullout machinery with a compensation compensation structure {H-beam pullout machinery of pressing a pressing member and a web by a adjustment type and compensation type}

The present invention relates to an H-beam drawing machine having a correction/compensation structure, and to be more specific, the inevitable eccentric asymmetric expansion of a hydraulic system is healed by a "correction structure" to "symmetric straight parallel" expansion, In addition, the size of the four cylinders of the first and second lifting cylinders (110-1, -2) (120-1, -2) arranged in a straight line along the centerline x-axis and the exertion of their lifting force are the same, and the structure is the same. The four first and second lift cylinders (110-1, -2) (120-1, -2) have a complete double structure that is pulled out to the end, unlike the prior art of a limited double structure, and the first lift cylinder (110 -1) and (110-2) and the separation distance (S) between (120-1) and (120-2) of the second lift cylinder are efficiently adjusted by 「compensation structure」 While minimizing the loss of the vertical lifting force of the cylinders 110-1 and -2 (120-1 and -2), the initial pulling force of the H-beam required to the maximum due to the initial frictional force and the frictional force are reduced. After that, the adjustment of the operating force for the pulling force is easily performed by the "web pressure plate hinge method" unlike the conventional "elevating and descending cylinder adjustment method", but the adjustment handling is simple, so that the drawing of the H-beam is efficient and economical. It is about.

In the construction of underground structures, a temporary ground support protective film structure is essential.

This is for the safety of underground vertical excavation. Temporary support protective film structures are usually composed of earth retaining walls and H-beams. The H-beam is a vertical structural support member, and the earth wall is a horizontal support member.

After the underground structure is completed, the H-beam must be removed. The equipment used at this time is an H-beam drawing machine.

The shape of the H-beam is the same as in FIG.

A prior art H-beam drawing machine is shown in Figures 2, 3 and 4a.

This H-beam drawing machine has two major problems.

For convenience of description, reference numerals in FIG. 4A will be used to examine problems in the prior art of the background art. This is for unification of reference numerals for various prior arts.

The first problem is the loss of the horizontal pressing force of the first and second horizontal pressure cylinders 140 and 141 to the vertical pulling-up force during drawing, and the problem as a result of the loss is the occurrence of slip. The loss of horizontal compression force and the occurrence of slip are the same problem.

The second problem is that when the H-beams of the first and second lift cylinders 150 and 151 are pulled out, the soil of the first and second lift cylinders 150 and 151 is eccentric and uneven settlement of the soil at the 2 support points. am.

Conventional H-beam drawing machines are made of two horizontal compression methods for the H-beam (see Fig. 1).

One horizontal compression method is a "flange (F) wing end compression method" that compresses only the wing ends (a1-a1, b2-b2) of the flanges (F1) (F2), and the other is "Web" and "flange ( It is a “Web-flange (F) wing end compression method” that simultaneously horizontally compresses the “F1) (F2) wing ends (a1-a1, b2-b2)”. The compression force of both horizontal compression methods is the horizontal compression force.

No matter which of the two methods is selected, maximum efficiency is achieved when slip with the H-beam for vertical lifting force does not occur during extraction. This is because the occurrence of slip is a loss of horizontal compression force and a loss of H-beam pulling force. Therefore, the slip with the H-beam for the vertical lifting force is the main culprit of the loss of the H-beam pulling force (Δ).

First, the problem of slip generation, which is the loss of the horizontal compression force of the first and second horizontal pressure cylinders 140 and 141 for the vertical pull-up force during drawing, will be described in more detail.

Since the operating pressure of the hydraulic cylinder is due to the flow rate of the inflowing fluid, even if the inflow branch pipe has the same diameter, a slight error in the flow rate is inevitable in the process of reaching the hydraulic cylinder from the oil tank through the branch pipe. It is because it is a fluid flow. It is for this reason that this phenomenon increases as the length of the branch pipe increases. The pressing force of the hydraulic cylinder is proportional to the inflow flow rate (Q), and the flow rate (Q) is the product of the cross-sectional area (A) of the hydraulic branch pipe and the flow rate (V).

The difference in the minute flow rate of the branch pipe leads to the difference in the minute discharge amount and the minute temporal difference in the pressure exertion of the hydraulic cylinder, so as shown in FIG. There is a problem that the extension of the piston rods of the four hydraulic cylinders is eccentric from horizontal parallel and operates asymmetrically.

There is a problem in that the piston rod is damaged due to continued pressurization in an asymmetrical state. This is because the four piston rods are eccentric and pressurized with each other out of the symmetrical press.

In addition, when the actual micro-error in the manufacturing process for the diameter of the hydraulic branch pipe is added, the difference in micro-flow velocity becomes larger and the asymmetry phenomenon becomes larger.

These minute errors are unavoidable errors of the hydraulic system.

Due to the unavoidable error of the hydraulic system, the extension of the four piston rods of the first and second horizontal pressure cylinders 140 and 141 of FIG. is the cause of the occurrence of slip against the vertical lifting force during pulling out.

The slip due to the eccentric loss of the piston rod expansion of the four first and second horizontal pressure cylinders 140 and 141 is the amount of loss (Δ1) for the vertical lifting force during drawing.

This slip phenomenon is an unavoidable limitation of the hydraulic system and its problem.

Next, regarding the problem of ground eccentric subsidence for the plastic ground 2 support points of the soil of the first and second elevation cylinders 150 and 151 when the H-beams of the first and second elevation cylinders 150 and 151 are pulled out. Take a look:

In a state in which the first and second horizontal pressing members 120 and 130 of FIG. 4A are pressed against the H-beam embedded in the plastic ground of the soil, the four first and second lifting cylinders 150 and 151 pressurize the lower plate 112 ) (114) as a support point, the H-beam is pulled out while the pressurized upper plates (111, 113) are raised.

At this time, the pullout force (pulling force) of the H-beam due to the elevation of the pressurized upper plates 111 and 113 is the pullout force against the reaction force of the pressurized lower plates 112 and 114 supported on the plastic ground of the soil.

In this way, although the H-beam pull-out force of the upper plate 111 and 113 for the pressure support is the pull-out force for the plastic ground reaction force R1 and R2 of the lower plate 112 and 114 for the pressure support, it is still the lower plate 112 for the pressure support The plastic ground reaction force (R1) (R2) for (114) is not supported while maintaining a horizontal state without being eccentric.

Let's take a look at the two reaction forces (R1) (R2) of the pressurized lower plate 112 centering on FIG. 4a.

Here, the two reaction forces (R1) and (R2) of the pressurized lower plate 112 are the first lift cylinder 150 closer to the H-beam (150-1) and the far first lift cylinder 150. It is called (150-2), and the fixed support point between each piston rod corresponding to (150-1) and (150-2) of the first lift cylinder 150 and the lower plate 112 is the reaction force R1, R2 It is called (see Fig. 4a).

When the H-beam is pulled out, the ground bearing capacity of the ground support point R1 of the first lift cylinder 150-1 close to the H-beam is greater than the ground support force of the ground support point R2 of the first lift cylinder 150-2. Due to the difference between the two reaction forces R1 and R2, the eccentricity of the plastic ground reaction force of the pressure support lower plate 112 acts. The size of the eccentricity increases as the pulling force of the H-beam increases.

When the H-beam is pulled out, the greater the eccentric subsidence of the soil to the plastic ground 2 support point of the first and second lift cylinders (150, 151), the higher the first and second lift cylinders (150, 151) deviate from the vertical rise. There is a problem in that the vertical lifting force of the first and second lifting cylinders 150 and 151 is lost (Δ2) by the eccentric operation. In addition, when the eccentricity is severe, the piston rods of the first and second lift cylinders 150 and 151 are bent or broken, resulting in a problem in that they cannot perform their functions.

If, as shown in FIG. 3, as a single structure with only one first lift cylinder 150-1 and no 150-2, the plastic ground reaction force of the pressurized support lower plate 112 by the first lift cylinder 150-1 There is no compensating means (i.e. compensation structure) to compensate for differential subsidence. Since there is no compensation structure, the loss of vertical lifting force is greater than that of the double structure of FIG. 4a.

However, in the case of a double structure as shown in FIG. 4A, the rotational moment M2 with respect to the H-beam of the first lifting cylinder 150-2 is the rotational moment with respect to the H-beam of the first lifting cylinder 150-1 ( It functions as a "compensation structure" for ground eccentric differential settlement for the plastic ground support point (R1) due to M1).

In other words, ground eccentric differential settlement with respect to the plastic ground support point R1 of the first elevation cylinder 150-1 is suppressed by the rotational moment M2 related to the H-beam of the first elevation cylinder 150-2. .

Here, the rotational moment M2 with respect to the H-beam of the first elevation cylinder 150-2 is a "compensation structure" that suppresses the rotational moment M1 with respect to the H-beam of the first elevation cylinder 150-1. On the other hand, the vertical lifting force of the first lifting cylinder 150-1 is the pulling force for directly pulling out the H-beam. In other words, the rotational moment M2 of the first elevation cylinder 150-2 is the rotational moment of the "compensation structure" that suppresses ground eccentricity, while the vertical lift force of the first elevation cylinder 150-1 directly Because it is the pulling force that pulls out the H-beam, the quantum function is completely different.

As the first elevating cylinder 150-1 is closer to the H-beam, the direct vertical lifting force (pulling force) for pulling out the H-beam increases, and the resulting ground eccentric uneven settlement increases.

Conversely, as the first elevation cylinder 150-2 moves further away from the H-beam, the “restraint compensation structure” for eccentric differential subsidence of the first elevation cylinder 150-1 increases, instead of the first elevation cylinder 150-2. Even if the capacity of 2) is increased, the direct vertical lifting force (pulling force) of pulling out the H-beam does not increase.

Therefore, it is advantageous for the first lift cylinder 150-1 close to the H-beam to take charge of the direct vertical lifting force for pulling out the H-beam, and suppression of ground eccentric differential settlement caused by the first lift cylinder 150-1 It is advantageous that the first lift cylinder 150-2 far from the H-beam takes charge.

Now, as seen above, the loss of horizontal compression force and the occurrence of slip due to the asymmetry of the first and second horizontal pressure cylinders 140 and 141, and the problems of the first and second lift cylinders 150- 1) Looking at the problems of the prior art cited below from the viewpoint of problems related to eccentric differential settlement due to the ground reaction force of (150-2) (151-1) (151-2), the following will be given.

Representative prior art here is ① Registered Patent No. 10-1028845 (Prior Art-1; Figure 2), ② Registered Patent No. 10-1050579 (Prior Art-2; Figure 3), ③ Publication Patent No. 10-2019-0138080 There is a call (prior art-3; Fig. 4a).

1) From the point of view of the first problem, the loss of horizontal compression force and slip due to the asymmetry of the first and second horizontal pressure cylinders (140, 141)

Prior Art -1, -2, -3 are the first and second horizontal pressure members according to the expansion of the piston rod of the first and second horizontal pressure cylinders 140 and 141 (unified by reference numerals of prior art -3). It is a hydraulic system that compresses the H-beam by (120) (130). The hydraulic system of the four horizontal pressure cylinders 140 and 141 has the same problem as the salpin bar above.

It is a hydraulic system in which, in addition to the actual minute error in manufacturing for the diameter of the hydraulic branch pipe, the minute error in the flow rate is unavoidable in the process from the oil tank to the hydraulic cylinder through the branch pipe.

The difference in microfluid velocity is a problem of the asymmetry of the four horizontal pressure cylinders (140, 141).

Due to the asymmetry, not only the loss of eccentricity for the horizontal pressing force, but also the cause of the slip for the vertical lifting force during pulling out is to have the above problems of the hydraulic system.

However, prior arts -1, -2, and -3 do not have means to compensate for the loss of compression force and the problem of slip generation for vertical lifting force.

Then, the prior arts -1, -2, and -3 are structures having inevitable problems of the hydraulic system as they are.

2) The second problem, when the H-beams of the 1st and 2nd lift cylinders 150 and 151 are pulled out, of the eccentric and uneven settlement problem of the 2 support points of the plastic ground of the soil of the 1st and 2nd lift cylinders 150 and 151 From the perspective

Since the prior art-2 has a single structure with one lift cylinder 500 (see FIG. 3), there is no compensation means to compensate for differential settlement of the ground for the plastic ground support point of the lower plate 101 supported by the lift cylinder 500. Because of this structure, the problem of eccentric differential settlement is inevitable.

Although the prior arts -1 and -3 are double structures, they are limited double structures that operate only at the time of initial drawing with a large initial frictional force. As follows.

First, the prior arts -1 and -3 look like a double structure in form, but in reality, they are limited double structures that operate only during initial drawing with a large initial frictional force, and are single structures after the frictional force is reduced. It becomes a structure with the same problem as the prior art -2.

In the limited double structure, the initial pull-out where the pull-out force is the best is operated with four lifters, and the pull-out after that is operated only with the lift cylinders close to the H-beam, so the pull-out force is adjusted according to the number of lift cylinders. The limited double structure can be referred to as the “elevating and descending cylinder adjustment method.”

Second, the prior art -1 is a limited double structure consisting of the main elevating cylinders 111a and 111b and the auxiliary elevating cylinders 131a and 131b, and at the time of the first H-beam withdrawal, the main elevating cylinders 111a and 111b As the auxiliary elevating cylinders 131a and 131b are simultaneously operated, the rotational moment M2 of the auxiliary elevating cylinders 131a and 131b relative to the H-beam rotates with respect to the H-beam of the main elevating and descending cylinders 111a and 111b. Although it forms a "limited compensation structure" with the moment M1, the moment the first H-beam is pulled out, the "limited compensation structure" is converted to a single structure in which only the main lifting and lowering cylinders 111a and 111b operate, resulting in a single structure There is a problem in that eccentric differential settlement occurs greatly. This is because the single structure has no means to compensate for eccentric differential settlement. This is precisely the problem with prior art-1.

Third, since the size of the main elevating cylinders (111a, 111b) is larger than the size of the auxiliary elevating cylinders (131a, 131b) as shown in Figure 2 in the prior art -1, even if operated as a double structure, due to the vertical lifting force during extraction Although the extraction of the H-beam is large, there is a problem in that the eccentric differential settlement caused by the main elevating and descending cylinders 111a and 111b is large.

Fourth, the prior art -3 has the same problems as the prior art -1 because it is a structure in which a double structure is switched from a limited double structure to a single structure like the prior art -1, and the first and second lifts of the prior art -3 While all four cylinders 150 and 151 have the same capacity as shown in FIG. 4A, in a state where the distance D between the reaction force R1 and the reaction force R2 shown in FIG. 4A is short, the first lifting cylinder There is a problem in that the rotational moment (M2) of the H-beam of (150-2) cannot suppress the ground eccentric differential settlement with respect to the plastic ground support point (R1) of the first elevation cylinder (150-1).

In this way, since the prior arts -1 and -3 of the double structure are structures in which the double structure is converted from the limited double structure to the single structure, eccentric differential settlement of the ground is inevitable, and the first and second lift cylinders 150-1, 150- The loss amount (Δ2) of the vertical lifting force of 2) occurs.

In summary, as shown in FIG. 4A, the slip due to the eccentric amount of the extension of the piston rod of the four first and second horizontal pressure cylinders 140 and 141 is the first and second lift cylinders 150-1 ) (150-2), and since it is a structure that converts from a limited double structure to a single structure, ground eccentric differential settlement is inevitable, and the first and second lift cylinders (150-2) are equal to the differential settlement. 1) A loss amount (Δ2) of vertical lift force of (150-2) is generated, and the sum of the losses (ΔT) for this vertical lift force is the problem of the prior arts -1 and -3.

(a) In the present invention, the first and second straight line induction protrusions formed on the support plate and the first and second straight line induction receiving parts of the first and second horizontal pressure members 310 and 312 correspondingly formed are “symmetric straight parallel parallel” By making it a "compensation structure" of "entry", the piston rods of the first and second horizontal pressure cylinders (310, 312) are expanded and compressed in "symmetric straight parallel" to each end of the four flanges of the "H-beam". The pressing force of the first and second horizontal pressing members 310 and 312 for the first and second horizontal pressing members 310 and 312 are exerted in the same size to prevent asymmetrical pressing force, thereby maximizing the horizontal pressing force during compression and slipping with the "H-beam" during extraction. The phenomenon is minimized, thereby minimizing the loss of vertical lifting force (Δ1) of the first and second lifting cylinders 110-1, -2 (120-1, -2), while having the same size and the same lifting force. The first and second lift cylinders (110-1, -2) (120-1, -2) of the four are symmetrical and arranged in a straight line along the x-axis, which is the center line, and are symmetrical with respect to the y-axis, and the H-beam Unlike the prior art of a limited double structure, four of the first and second lift cylinders (110-1, -2) (120-1, -2) are pulled out to the end, resulting in a complete double structure, resulting in the plastic deformation of the soil. The separation distance (S) between (110-1) (110-2) of the first lift cylinder and (120-1) (120-2) of the second lift cylinder is effective while preventing eccentric settlement from occurring. By making the "compensation structure", the rotational moment M2 of the first and second lift cylinders 110-2 and 120-2 relative to the H-beam of the first lift cylinder 110-1 and 120-1 It becomes a compensation structure for the ground eccentric differential settlement of the rotational moment (M1) with respect to the plastic ground support point (R1) for the vertical lifting force of the first and second lift cylinders (110-1, -2) (120-1, -2). The purpose is to minimize the loss and at the same time minimize the total loss (ΔT) for the vertical lifting force,

(b) Through the vertical rotation hinge structure of the web pressure plate 350, not only is it possible to adjust the number of crimping locations and crimping points with H-beams, but also the initial pulling force of the H-beam required to the maximum due to the initial frictional force, and its After the frictional force is reduced, the adjustment of the operating force for the pulling force is the "web pressure plate hinge method", unlike the conventional "elevating and descending cylinder adjustment method", which is easy and convenient to adjust and handle, and the drawing of the H-beam is efficient and economical. There is another purpose in making this happen,

⒞ In the web press plate 350, which is located in the center of the first and second horizontal press members 310 and 312 and rotates up and down by the hinge structure, to the web press plate 350 in close contact with the "web of the H-beam" By forming the wedge portion, when the "H-beam" is pulled out, the compression force with the "web" is further doubled by the wedge action of the wedge portion, and at the same time, the first and second lift cylinders (110-1, -2) (120-1, -2) ) Another object is to minimize the amount of loss (Δ2) for the vertical lift force.

The configuration of the H-beam drawing machine having the correction/compensation structure of the present invention will be described as follows.

In the state where the H-beam is compressed by the pressure of the first and second horizontal pressing members 320 and 340 by the first and second horizontal pressing cylinders 310 and 312, the lower plate 220 is used as a support plate. As the 1st and 2nd lift cylinders are raised, the support top plate 210 is also lifted, and at the same time, in a typical H-beam drawing machine in which an H-beam is drawn along with the lift

The bottom parts 320f and 340f of the first and second horizontal pressing members 320 and 340 that come into contact with the support top plate 210 and move forward and backward by the first and second horizontal pressing cylinders 310 and 312 The first and second straight guide receiving portions 322 and 342 and the first and second straight guide protrusions 212 and 214 are formed on the upper surface of the support top plate 210 corresponding thereto, and the first and second straight guide projections 212 and 214 are formed. 2 The linear induction protrusions 212 and 214 and the first and second linear induction receivers 322 and 342 are assembled and combined with each other to form a "correction structure" of "symmetric straight parallel entry" with O as the center point. The x-y axis is the central axis of the access road K, and the first and second horizontal pressure cylinders 310 and 312, and the first and second straight guide receiving portions 322 and 342 and the first and second straight guide projections (212) (214) forms a symmetrical parallel structure with respect to the x-axis, and the pressing forward direction of the first and second horizontal pressure cylinders (310) (312) is parallel to the center line x-axis, while the cylinder size and The first and second lift cylinders (110-1, -2) (120-1, -2) having the same lifting force are arranged in a straight line along the center line x-axis, and the first and second lift cylinders when the H-beam is pulled out Unlike the limited double structure, four (110-1, -2) (120-1, -2) is a complete double structure that is pulled out to the end, and also between the first lift cylinders (110-1) (110-2) and 2 The separation distance (S) between the lift cylinders (120-1) (120-2) becomes a "compensation structure", but regarding the H-beam of the first and second lift cylinders (110-2) (120-2) Correction characterized in that the rotational moment (M2) compensates for the ground eccentric differential settlement of the rotational moment (M1) with respect to the plastic ground support point (R1) of the first and second elevating cylinders (110-1) (120-1) ·It is an H-beam drawing machine with a compensation structure.

here,

The web pressing plate 350 located at the center of the first and second horizontal pressing members 320 and 340 rotates 180 degrees up and down in the center vertical direction of the first and second horizontal pressing members 320 and 340 by a hinge structure. The hinge structure is fixed to the fixed hinge parts 320e and 340e of the L-shaped upper surfaces 320c and 340c of the first and second horizontal press members 320 and 340 and the rotary arm fixed to the web press plate 350 It is formed by the hinge shaft 364 with the member 360, and at this time, the vertical upper part of the hinged rotation web press plate 350 is the L-shaped upper surface 320c and 340c of the first and second horizontal press members 320 and 340 ) in a standing position and supported by the L-shaped vertical steps (320d) (340d), and the vertical lower portion of the hinged web plate (350) is in the central vertical plane of the first and second horizontal pressing members (320, 340) in contact position

On the other hand, the web pressure plate 350 is composed of a body portion 357 and a wedge portion 358, but the wedge portion 358 in close contact with the "web of the H-beam" is not It is an H-beam drawing machine having a correction/compensation structure characterized in that the compression force is further pressed.

also,

The vertical surfaces of the first and second horizontal pressing members 320 and 340 and the corresponding vertical surfaces of the body 357 of the web pressing plate 350 have non-slip sawtooth portions 320b, 340b, and 354 in the longitudinal direction, respectively. ) is formed, and the non-slip toothed portions 320b and 340b of the first and second horizontal pressing members 320 and 340 and the rear non-slip toothed portion 354 of the body portion 357 of the web pressing plate 350 Characterized in that the front non-slip sawtooth portion 352 is formed on the vertical portion of the wedge portion 358 of the web pressing plate 350 that compresses the web of the H-beam while engaging and compressing each other during drawing. It is an H-beam drawing machine having a correction and compensation structure.

Not only that,

One end of the rotating arm member 360 is fixed to the upper surface of the web pressing plate 350, and the other end of the vertical rotation hinge hole 362 and the fixed hinge portion 320e of the first and second horizontal pressing members 320 and 340 ) (340e) is hinged by the hinge shaft 364 to form a hinge structure, and the web pressing plate 350 is rotated vertically above the first and second horizontal pressing members 320 and 340. While the access road (K) is open, the web pressing plate 350 is rotated in the vertical lower part of the first and second horizontal pressing members 320 and 340, and the web pressing plate 350 is inside the flanges on both sides of the H-beam. Correction of compressing the web of the H-beam by a hinge method characterized by being inserted and protruded, and at this time, the compression distance between the wedge part 358 of the web pressing plate 350 and the "web of the H-beam" is minimized ·It is an H-beam drawing machine with a compensation structure.

also,

The protruding length f of the web pressure plate 350, the separation distance a from the first and second horizontal pressing members 320 and 340 to the end of the flange F of the H-beam, and B/2 of the flange of the H-beam A correction/compensation structure characterized by being compressed with the "H-beam" in the case of f = a = b, the case of f = a > b, or the case of f = a < b in the relation of width b It is an H-beam drawing machine with

also,

The web pressure plate 350 has a structure in which the body portion 357 and the wedge portion 358 form a wedge boundary surface and the wedge portion 358 slides with respect to the body portion 357, while the body portion 357 and the wedge portion Semicircular guide grooves 357a and 358a are opposed to the wedge boundary surface of (358), and the wedge portion 358 moves smoothly along the wedge boundary surface by the guide ball 356 inserted therein. It is an H-beam drawing machine with a correction and compensation structure characterized in that the vertical movement of the guide ball 359 and the wedge portion 358 is restricted by the stoppers 358 at the upper and lower ends of the guide grooves 357a and 358a. .

The core components of the present invention are a "correction structure" and a "compensation structure".

「Compensation structure」 is to solve the inevitable problem of the hydraulic system due to minute errors in the manufacture of the cross-sectional diameter of the hydraulic branch pipe, and 「compensation structure」 is the first and second lift cylinders (110-1, -2) It is to minimize the problem of ground eccentric subsidence caused by the ground bearing capacity of (120-1, -2).

First, the "correction structure" is explained as follows.

The "correction structure" is a structure in which a moving body advanced by the first and second horizontal pressure cylinders 310 and 312 is induced and moved horizontally and symmetrically on a fixed body.

The movable body is the first and second linear guide receiving units 322 and 342 of the first and second horizontal pressure members 320 and 340, and the fixed body is the first and second rigidly fixed to the support upper plate 210. They are the straight guide protrusions 212 and 214.

The hydraulic system of the first and second horizontal pressure cylinders 310 and 312 actually leads to minute errors in flow velocity and hydraulic pressure due to inevitable minute errors in the manufacture of the cross-sectional diameter of the branch pipe, and as a result, the first and second horizontal pressurization Regarding the eccentric expansion of the four piston rods of the cylinders 310 and 312, the extension of the piston rod is induced to a horizontally symmetrical parallel trajectory by the "compensation structure".

The first and second horizontal pressing members 320 and 340 are induced and pressed into a horizontally symmetrical parallel entry track with respect to the H-beam by the 「correction structure」, thereby preventing asymmetrical pressing force to maximize the horizontal compression force, as well as to maximize the horizontal compression force during extraction. The slip phenomenon with the "H-beam" is minimized, and the loss of the vertical lifting force of the first and second lift cylinders 110-1 and -2 (120-1 and -2) is minimized.

Second, the "compensation structure" is explained as follows.

The four first and second lift cylinders 110-1, -2 (120-1, -2) arranged in a straight line along the centerline x-axis have a structure in which the cylinder size and lifting force are the same, and the H-beam Unlike the prior art, the four first and second lift cylinders (110-1, -2) (120-1, -2) have a complete double structure that is pulled out to the end, unlike the prior art of a limited double structure, unlike the prior art. The rotational moment M2 of the H-beams of the 1st and 2nd lift cylinders 110-2 and 120-2 is the plastic ground support point R1 of the 1st and 2nd lift cylinders 110-1 and 120-1 It is to be a "compensation structure" in which the ground eccentric differential settlement of the rotational moment (M1) for

The four first and second lifting cylinders 110-1, -2, 120-1, -2 of the present invention have the same capacity and the same lifting force, and all of them have a complete double structure in which they are pulled out to the end. Since the basic structure is based on this, it is simply controlled by adjusting the separation distance (S) between the first lifting cylinders 110-1 and 110-2 and between the second lifting cylinders 120-1 and 120-2. There is an advantage that the rotational moment M2 of the "compensation structure" for the H-beams of the 1st and 2nd lift cylinders 110-2 and 120-2 can be greatly adjusted.

On the other hand, in the "compensation structure", in order to increase the rotational moment M2 of the first and second lift cylinders 110-2 and 120-2 with respect to the H-beam, the first and second lift cylinders 110-2 The capacity of (120-2) may be increased. However, when the capacities of the first and second lift cylinders 110-2 and 120-2 are larger than the capacities of the first and second lift cylinders 110-1 and 120-1, the rotational moment for the "compensation structure" However, the drawing efficiency, which is a unique function of the drawing machine, is relatively not so great. This is because direct H-beam drawing is entirely performed in the hoisting cylinder closer to the H-beam.

No matter how large the capacity of the first and second lift cylinders 110-2 and 120-2 are, as long as they are far from the H-beam, the first and second lift cylinders 110-2 and 120-2 are H -This is why it does not directly affect beam drawing and is inefficient.

Therefore, all four of the first and second lift cylinders (110-1, -2) (120-1, -2) arranged in a straight line along the centerline x-axis have the same size and the same structure as the lift force exerted by the H- When the beam is pulled out, the four first and second lift cylinders (110-1, -2) (120-1, -2) not only have a complete double structure in which they are pulled out to the end, unlike the prior art of a limited double structure, and the separation As the distance S becomes an efficient "compensation structure", there is an advantage in minimizing the loss of the vertical lifting force of the first and second lift cylinders 110-1 and -2 (120-1 and -2).

In summary, the inevitable problems of the hydraulic system are solved by the "correction structure" of the straight guide projections 212 and 214 and the first and second straight guide receivers 322 and 342, and at the same time the center line x-axis The first and second lifting cylinders (110-1, -2) (120-1, -2) arranged in a straight line along the structure have the same size and the same lifting force, and when the H-beam is drawn out, the four 1, 2 elevating cylinders (110-1, -2) (120-1, -2) have a complete double structure that is drawn to the end, unlike the prior art of a limited double structure, and the separation distance (S) is efficiently adjusted. Compensation structure” prevents the loss of drawing force, making the drawing of the H-beam efficient and economical.

In addition, if the "web of H-beam" wedge compression is added by the wedge portion 358 of the web pressing plate 350, the loss to the H-beam is further prevented and the drawing becomes more efficient.

[effect]

(a) In the present invention, the unavoidable eccentric asymmetric expansion of the hydraulic system is healed by a “correction structure” to “symmetric straight parallel” expansion, and the first and second lift cylinders (110-1) arranged in a straight line along the center line x-axis , -2) (120-1, -2) Not only the size of the four cylinders and their lifting force exert the same structure, but also the four first and second lift cylinders (110-1, -2) (120-1) when drawn out. , -2) is a complete double structure that is pulled out to the end, unlike the prior art of the limited double structure, and also between (110-1) and (110-2) of the first lift cylinder and (120-2) of the second lift cylinder. The verticality of the first and second lift cylinders (110-1, -2) (120-1, -2) by the "compensation structure" in which the separation distance (S) between 1) and (120-2) is efficiently adjusted. While minimizing the loss of lifting force, the adjustment of the operating force for the initial pulling force of the H-beam, which is required at the highest level due to the initial frictional force, and the pulling force after the frictional force is reduced, is different from the conventional "elevating and descending cylinder adjustment method". In contrast, even though it is easily performed by the "web pressure plate hinge method", the adjustment and handling are simple, so that the drawing of the H-beam is efficient and economical.

(b) The protruding length f of the web pressure plate 350, the separation distance a from the first and second horizontal pressing members 320 and 340 to the end of the flange F of the H-beam, and B/ of the flange of the H-beam The compression method and the number of compressions can be adjusted by the two-width b relationship, so that the initial pulling force of the H-beam, which is required to be the highest due to the initial friction force, and the compression force for the subsequent pulling force after the frictional force is reduced are conventionally Unlike the "lowering cylinder adjustment method", the adjustment is easy as it is made by the "web pressing plate hinge method", while the first and second lifting cylinders (110-1, -2) (120-1, -2)4 The loss of the vertical lifting force of the first and second lift cylinders (110-1, -2) (120-1, -2) is minimized as an efficient "compensation structure" for ground eccentric differential settlement is made by simultaneously performing two lifting operations. In addition, it is a useful invention that has the effect of maximizing the efficiency by minimizing the total loss (ΔT) for the vertical lifting force of all the H-beams.

[Figure 1] Cross-sectional view showing the shape of an H-beam to be drawn out
[Figure 2] Perspective view of the drawing machine of prior art-1
[Figure 3] Perspective view of the drawing machine of prior art-2
[Figure 4a] Perspective view of the drawing machine of the prior art-3
[Fig. 4b] Plan view of Fig. 4a for the drawing of the H-beam
[Fig. 5a] The "correction structure" of the first and second horizontal pressing members 310 and 312 of "symmetric straight parallel entry" is formed by the first and second linear induction protrusions and the first and second linear induction receivers. Under the condition, the first and second lifting cylinders (110-1, -2) (120-1, -2) having the same structure in terms of cylinder size and lifting force are symmetrically arranged in a straight line along the x-axis, which is the center line. Perspective view of the present invention drawing machine constituting the structure
[Fig. 5b] the first and second straight guide projections 212 and 214 formed on the upper surface of the support top plate 210 of the present invention, and the first and second formed on the lower surface of the first and second horizontal pressing members 310 and 312, 2 Perspective view showing the "correction structure" formed by the linear induction receivers 322 and 342
[Fig. 6a] The "correction structure" of the first and second horizontal pressing members 310 and 312 of "symmetric straight parallel entry" is formed by the first and second linear induction protrusions and the first and second linear induction receivers. Under the condition, the web pressing plate 350 is rotated vertically above the first and second pressing members 320 and 340 by the hinge structure, and in this state, a perspective view showing that the present invention is entering the H-beam
[Figure 6b] AA cross-sectional view of Figure 6a
[Figure 6c] a perspective view and a BB cross-sectional view of the web pressing plate 350 of the present invention
[Figure 7a] Plan view of Figure 6a
[Fig. 7b] on the plan view of Fig. 6a, the projecting length f of the web pressing plate 350, the separation distance a from the first and second horizontal pressing members 320 and 340 to the end of the flange F of the H-beam, A plan view showing the relationship b, which is the B/2 width of the flange of the H-beam

The configuration of the H-beam drawing machine having the correction/compensation structure of the present invention will be described in more detail with the accompanying drawings.

The core components of the present invention lie in the "correction structure" and the "compensation structure".

The H-beam drawing machine having the correction/compensation structure of the present invention is a device for drawing H-beams, and the preparation process for drawing H-beams or the drawing operation process is the same as that of ordinary drawing machines.

However, the most notable difference lies only in the 「compensation structure」, 「compensation structure」, and 「wedge hinge structure」.

Here, the description of the preparation process for drawing out or the drawing operation process will be omitted, and the "correction structure", "compensation structure", and "wedge hinge structure", which are the core components of the present invention, will be intensively described.

1) Regarding 「correction structure」

As shown in Figure 5a, after the H-beam is located in the center of the access road K of the present invention extractor, the first and second horizontal pressure cylinders 310 and 312 are operated to move toward the H-beam. , 2 horizontal pressing members 320 and 340 and each flange end of the H-beam are compressed.

At this time, the first and second horizontal pressing members 320 and 340 are guided and moved horizontally symmetrically and in parallel by the "correction structure".

The "correction structure" is a fixation firmly fixed to the first and second linear guide receiving portions 322 and 342 of the first and second horizontal pressure members 320 and 340, which are movable bodies, and to the support top plate 210. This is the coupling structure of the first and second straight guide protrusions 212 and 214 of the chain.

Since the movable first and second linear guide receiving portions 322 and 342 are moved along the first and second linear guide protrusions 212 and 214 as fixed bodies, the unavoidable eccentricity error of the hydraulic system is corrected, , 2 horizontal pressing members 320 and 340 and the pressing of each flange end of the H-beam is the same. As the eccentricity error of the hydraulic system is corrected by the "compensation structure," asymmetrical pressing force is prevented, thereby maximizing horizontal compression force, minimizing slip, and maximizing vertical lifting force.

As the first and second pressure cylinders 140 and 141 are forwardly moved and pressurized in “symmetrical straight line parallel” by the “correction structure,” the asymmetry problem of the hydraulic system due to the flow rate of the minute error is solved.

2) “Compensation Structure”

The first and second lifting cylinders 110-1 and -2 (120- As 1, -2) is operated, the H-beam is gradually pulled out. At this time, the support point of the first and second lift cylinders 110-1, -2 (120-1, -2) is the lower support plate 220, and the support of the lower support plate 220 is the ground.

Four of the first and second lift cylinders 110-1, -2 and 120-1, -2 of the present invention arranged in a straight line along the centerline x-axis have the same size and the same lifting force, and the H- When the beam is pulled out, the four first and second lift cylinders 110 and 120 have a complete double structure that is pulled out to the end, unlike the prior art of a limited double structure, so the first and second lift cylinders can be efficiently adjusted by The rotational moment M2 with respect to the H-beam of (110-2) (120-2) is the rotational moment with respect to the plastic ground support point (R1) of the first and second lift cylinders (110-1) (120-1) ( It becomes a "compensation structure" in which the eccentric differential settlement of the ground of M1) is compensated, so that the loss of the vertical lift force of the first and second lift cylinders 110 and 120 is minimized, and at the same time, the total loss for the vertical lift force is also minimized.

On the other hand, the conventional limited double structure is adjusted by adjusting the number of elevating cylinders, that is, the "elevating and lowering cylinder adjustment method" for the initial elevating force at which the elevating force is exerted at its maximum and the subsequent elevating force, whereas the first and second elevating cylinders ( 110-1, -2) (120-1, -2) The complete double structure of the present invention, which operates throughout the drawing while the size of the four cylinders and the exertion of their lifting force are the same, is that the web pressing plate 350 " Since it is a "web pressure plate hinge method" that prevents loss of lifting force by pressing on the "web" and separates the compression of the "web" of the web pressure plate 350 for the subsequent pulling force, the adjustment method of the two inventions is completely different, Due to this, the structures of the two inventions are also completely different.

In this way, the protruding length f of the web pressing plate 350, the distance a from the first and second horizontal pressing members 320 and 340 to the end of the flange F of the H-beam, and the flange of the H-beam The compression method and the number of compressions can be adjusted by the relation b of B/2 width, so that the initial pulling force of the H-beam required to the maximum due to the initial friction force and the compression force for the subsequent pulling force after the frictional force is reduced are conventionally adjusted. Unlike the 「elevating and descending cylinder adjustment method」, the adjustment is easy as it is made by the 「Web pressure plate hinge method」, while the first and second elevating cylinders (110-1, -2) (120-1, -2) ) Loss of vertical lifting force of the 1st and 2nd lift cylinders (110-1, -2) (120-1, -2) as an efficient "compensation structure" for ground eccentric differential settlement is made by simultaneous four lift operations Not only is this minimized, but the total loss (ΔT) for the vertical lifting force of all these H-beams is also minimized, which has the advantage of maximizing its efficiency.

3) Regarding the "upper and lower hinge rotation structure" of the web press plate 350

The web pressing plate 350 is rotated in the vertical upper part and the vertical lower part of the first and second pressing members 320 and 340 by the hinge structure of the hinge shaft 364.

The web pressing plate 350 has an insertion structure in which the body portion 357 and the wedge portion 358 are intertwined with each other (see FIG. 6C), and the wedge portion 358 is slid with respect to the body portion 357.

The semicircular guide grooves 356a and 357a are opposite to the body part 357 and the wedge part 358 on both sides of the wedge boundary surface, and the wedge part along the wedge boundary surface by the guide ball 356 inserted therein While the vertical movement of the 358 is smoothly performed, the vertical movement of the guide ball 359 and the wedge portion 358 is restricted by the stoppers 358 at the upper and lower ends of the guide grooves 356a and 357a.

The hinge structure of the web pressure plate 350 composed of the body portion 357 and the wedge portion 358 is fixed hinge portion ( 320e) is formed by the hinge shaft 364 of the rotation arm member 360 fixed to the web pressing plate 350 and (340e).

The wedge portion 358 adheres closely to the "web of the H-beam", and the compressive force with the "web" is doubled by the wedge action of the wedge portion 358 when pulling out.

The web pressing plate 350 hingedly rotated vertically upward is supported by the L-shaped vertical steps 320d and 340d of the first and second horizontal pressing members 320 and 340, and the web pressing plate 350 rotated vertically downward ) is in contact with and supported on the vertical surface of the first and second horizontal pressing members 320 and 340.

The upper and lower hinge rotation of the web pressure plate 350 is preferably performed by a hinge hydraulic cylinder (HP).

One end rotation structure of the hinge hydraulic cylinder (HP) is fixed to the piston rod and the rotating arm member 360 of the hinge hydraulic cylinder (HP), and the other end rotation structure is the cylinder and the first and second lifts of the hinge hydraulic cylinder (HP) It is fixed to the cylinders 110-1 and 120-1.

One end of the rotary arm member 360 is fixed to the upper surface of the web pressing plate 350, and the other end is the vertical rotation hinge hole 362 of the hinge structure.

The vertical rotation hinge hole 362 of the rotary arm member 360 is formed on the L-shaped upper surfaces 320c and 340c of the first and second pressing members 320 and 340, and the fixed hinge parts 320e and 340e and the hinge A hinge structure is formed by the shaft 364.

Now, the relationship between the entry of the drawing machine and the "upper and lower hinge rotation structure" of the web pressing plate 350 will be described as follows.

When entering the drawing machine, the entry width is (B + 2a) as shown in FIG. 7B.

At this time, the width of the drawing machine becomes (B + 2a). Here, the distance a is preferably the minimum distance at which the extractor can easily enter.

For convenience of description, the case where there is no configuration of the web pressing plate 350 and the case where there is will be described.

First, in the case where there is no configuration of the web pressing plate 350, the state in which the web pressing plate 350 is positioned at the upper vertical position by hinge rotation is also included in this. In the state where the web pressure plate 350 is positioned vertically above, the extractor enters the H-beam as shown in FIGS. 5A and 6A.

In the state of entering the H-beam, the first and second horizontal pressing cylinders 310 and 312 are operated to compress the first and second horizontal pressing members 320 and 340 to the H-beam. This pressing step is a step just before the first and second lifting cylinders 110-1 and -2 (120-1 and -2) are moved up and down. At this time, the compression points between the first and second horizontal pressing members 320 and 340 and the H-beam are four flange (F) ends.

The same result is obtained when the first and second horizontal pressing members 320 and 340 are pressed against the H-beam while the web pressing plate 350 is positioned at the upper vertical position by hinge rotation. This is because there is no compression between the web pressing plate 350 and the H-beam.

Second, in the case of the configuration of the web pressing plate 350, when the drawing machine enters, the drawing machine enters the H-beam as shown in FIGS. 6A and 7A with the web pressing plate 350 positioned vertically above.

The entry width of the drawing machine (B + 2a) is left as it is as shown in FIG.

At this time, the entry width of the drawing machine is (B + 2a).

After entering the H-beam in a state where the web pressure plate 350 is located in the vertical upper part, the web pressure plate 350 is rotated and positioned vertically lower, and in this state, the first and second horizontal pressure cylinders 310 and 312 ) to compress the first and second horizontal pressing members 320 and 340 and the web pressing plate 350 to the H-beam. This pressing step is a step just before the lifting of the first and second lifting cylinders 110-1 and -2 (120-1 and -2).

At this time, the position of the compression point between the H-beam and the first and second horizontal pressing members 320 and 340 and the web pressing plate 350 is changed according to the relationship between f, a, and b. Here, f is the protrusion length of the web pressing plate 350, a is the distance from the first and second horizontal pressing members 320 and 340 to the flange (F) end crimping point with the H-beam, and b is the protrusion The distance from the end of the length (f) to the web of the H-beam.

① In the case of f = a = b, the first and second horizontal pressing members 320 and 340 compress the end of the flange (F) of the H-beam and the web pressing plate 350 simultaneously compress the web of the H-beam. am. At this time, b is the B/2 width of the flange of the H-beam.

If the former compression method is called “flange (F) end-compression method” and the latter compression method is called “web-compression method”, in this case, “flange (F) end-compression method” and “Web-compression method” method” is a method that is compressed at the same time.

② In the case of f = a > b, the web pressing plate 350 compresses only the web of the H-beam, and it is a "web-compression method". At this time, f and a are longer than B/2 width of the flange.

③ In the case of f = a < b, the first and second horizontal pressing members 320 and 340 compress only the end of the flange F of the H-beam, which is a "flange F end-pressing method".

At this time, f and a are shorter than B/2 width of the flange, that is, b.

In the case of initial drawing that requires the highest drawing force of the H-beam, the case of ① is preferable in which the end of the flange (F) of the H-beam and the web are compressed at the same time.

And after the initial drawing, the case of ② or ③ is preferable.

In this way, the protruding length f of the web pressing plate 350, the distance a from the first and second horizontal pressing members 320 and 340 to the end of the flange F of the H-beam, and the flange of the H-beam The compression method and the number of compressions can be adjusted by the relation b of B/2 width, so that the initial pulling force of the H-beam required to the maximum due to the initial friction force and the compression force for the subsequent pulling force after the frictional force is reduced are conventionally adjusted. Unlike the 「elevating and descending cylinder adjustment method」, the adjustment is easy as it is made by the 「Web pressure plate hinge method」, while the first and second elevating cylinders (110-1, -2) (120-1, -2) ) Loss of vertical lifting force of the 1st and 2nd lift cylinders (110-1, -2) (120-1, -2) as an efficient "compensation structure" for ground eccentric differential settlement is made by simultaneous four lift operations Not only is this minimized, but the total loss (ΔT) for the vertical lifting force of all these H-beams is also minimized, which has the advantage of maximizing its efficiency.

On the other hand, a non-slip sawtooth portion for preventing slip against the vertical lifting force of the H-beam during drawing will be described.

Where the non-slip sawtooth portion is formed, three locations are preferable.

One is the rear non-slip toothed portion 354 of the web pressing plate 350, and the other is the corresponding non-slip toothed portion 320b, 340b of the first and second pressing members 320, 340, Another place is the wedge portion 358 of the web pressing plate 350.

The three non-slip teeth are places where slip against the lifting force is prevented when the first and second lift cylinders 110-1 and -2 (120-1 and -2) are pulled out. This is because when slip occurs, it leads to a loss of lifting force.

As described above, the present invention has a "correction structure", a "compensation structure", a "up and down hinge rotation structure" and a "wedge structure" as core structures,

The problem of unavoidable eccentric and asymmetrical expansion of the hydraulic system was solved by "correction structure" with "symmetric straight parallel" expansion, and also the first and second lift cylinders (110-1, -2) arranged in a straight line along the centerline x-axis. )(120-1, -2) Not only does the size of the four cylinders and their lifting force exert the same structure, but also the four first and second lift cylinders (110-1, -2) (120-1, -2) when drawn out ) is a complete double structure that is pulled out to the end, unlike the prior art of the limited double structure, and between (110-1) and (110-2) of the first lift cylinder and between (120-1) of the second lift cylinder By becoming a "compensation structure" in which the separation distance (S) between (120-2) is efficiently adjusted, the vertical lifting force of the first and second lift cylinders (110-1, -2) (120-1, -2) While the loss is minimized, the adjustment of the operating force for the initial pulling force of the H-beam, which is required at the peak due to the initial frictional force, and the pulling force after the frictional force is reduced, is different from the conventional "elevating and descending cylinder adjustment method". It is a useful invention in which the drawing of the H-beam is efficient and economical because the adjustment and handling are simple even though it is easily made by the pressurized plate hinge method.

P; Drawing machine (P)
100; lift cylinders, 110-1, 110-2; first elevating cylinders (110-1, 110-2), 120-1, 120-2; The second lift cylinder (120-1, 120-2),
140; First pressure cylinder 140, 141; The second pressure cylinder 141,
200; support plate, 210; Support top plate 210, 212; first straight guide projections 212 and 214; second straight guide projections 214 and 220; Support lower plate 220,
300; Pressing unit, 310; First pressure cylinder 310, 312; a second pressure cylinder 312;
320; The first pressing member 320, 320a; vertical planes 320a, 320b; non-slip teeth 320b, 320c; L-shaped upper surface (320c), 320d; L-type vertical step (320d), 320e; Fixed hinge parts (320e), 320f; bottom part (320f), 322; A first linear guide receiving unit 322,
340; The second pressing member 340, 340a; vertical planes 340a, 340b; non-slip teeth 340b, 340c; L-shaped upper surface (340c), 340d; L-type vertical step (340d), 340e; Fixed hinge parts (340e), 340f; bottom part (340f), 342; A second linear guide receiving unit 342,
350; Web pressure plate 350, 352; Front non-slip teeth 352. 354, rear non-slip teeth 354, 356; guide balls 356, 357; Body parts 357, 357a; guide grooves (357a), 358; wedges 358, 358a; guide grooves 358a, 359; Stopper (359), ]
360; Rotating arm members (360), 362; Up and down rotation hinge ball (3
62), 364; hinge shafts 364, 366; lift up-down hall (366),
HP; Hinge Hydraulic Cylinder (HP)

Claims (6)

In the state where the H-beam is compressed by the pressure of the first and second horizontal pressing members 320 and 340 by the first and second horizontal pressing cylinders 310 and 312, the lower plate 220 is used as a support plate. As the 1st and 2nd lift cylinders are raised, the support top plate 210 is also lifted, and at the same time, in a typical H-beam drawing machine in which an H-beam is drawn along with the lift

The bottom surfaces 320f and 340f of the first and second horizontal pressing members 320 and 340 that come into contact with the support top plate 210 and move forward and backward by the first and second horizontal pressing cylinders 310 and 312 The first and second straight guide receiving portions 322 and 342 and the first and second straight guide protrusions 212 and 214 are formed on the upper surface of the support top plate 210 corresponding thereto, and the first and second straight guide projections 212 and 214 are formed. 2 The linear induction protrusions 212 and 214 and the first and second linear induction receivers 322 and 342 are assembled and combined with each other to form a "correction structure" of "symmetric straight parallel entry" with O as the center point. The xy axis is the central axis of the access road K, and the first and second horizontal pressure cylinders 310 and 312, and the first and second straight guide receiving portions 322 and 342 and the first and second straight guide projections (212) (214) forms a symmetrical parallel structure with respect to the x-axis, and the pressing forward direction of the first and second horizontal pressure cylinders (310) (312) is parallel to the center line x-axis, while the cylinder size and The first and second lift cylinders (110-1, -2) (120-1, -2) having the same lifting force are arranged in a straight line along the center line x-axis, and the first and second lift cylinders when the H-beam is pulled out Unlike the limited double structure, four (110-1, -2) (120-1, -2) is a complete double structure that is pulled out to the end, and also between the first lift cylinders (110-1) (110-2) and 2 The separation distance (S) between the lift cylinders (120-1) (120-2) becomes a "compensation structure", but regarding the H-beam of the first and second lift cylinders (110-2) (120-2) Correction characterized in that the rotational moment (M2) compensates for the ground eccentric differential settlement of the rotational moment (M1) with respect to the plastic ground support point (R1) of the first and second elevating cylinders (110-1) (120-1) H-beam drawing machine with compensation structure According to claim 1
The web pressing plate 350 located at the center of the first and second horizontal pressing members 320 and 340 rotates 180 degrees up and down in the center vertical direction of the first and second horizontal pressing members 320 and 340 by a hinge structure. The hinge structure is fixed to the fixed hinge parts 320e and 340e of the L-shaped upper surfaces 320c and 340c of the first and second horizontal press members 320 and 340 and the rotary arm fixed to the web press plate 350 It is formed by the hinge shaft 364 with the member 360, and at this time, the vertical upper part of the hinged rotation web press plate 350 is the L-shaped upper surface 320c and 340c of the first and second horizontal press members 320 and 340 ) in a standing position and supported by the L-shaped vertical steps (320d) (340d), and the vertical lower portion of the hinged web plate (350) is in the central vertical plane of the first and second horizontal pressing members (320, 340) in contact position
On the other hand, the web pressure plate 350 is composed of a body portion 357 and a wedge portion 358, but the wedge portion 358 in close contact with the "web of the H-beam" is not H-beam drawing machine with a compensation/compensation structure characterized in that the compression force is further pressed According to claim 1 or 2
The vertical surfaces of the first and second horizontal pressing members 320 and 340 and the corresponding vertical surfaces of the body 357 of the web pressing plate 350 have non-slip sawtooth portions 320b, 340b, and 354 in the longitudinal direction, respectively. ) is formed, and the non-slip toothed portions 320b and 340b of the first and second horizontal pressing members 320 and 340 and the rear non-slip toothed portion 354 of the body portion 357 of the web pressing plate 350 Characterized in that the front non-slip sawtooth portion 352 is formed on the vertical portion of the wedge portion 358 of the web pressing plate 350 that compresses the web of the H-beam while engaging and compressing each other during drawing. H-beam drawing machine having a compensation and compensation structure According to claim 1 or 2
One end of the rotating arm member 360 is fixed to the upper surface of the web pressing plate 350, and the other end of the vertical rotation hinge hole 362 and the fixed hinge portion 320e of the first and second horizontal pressing members 320 and 340 ) (340e) is hinged by the hinge shaft 364 to form a hinge structure, and the web pressing plate 350 is rotated vertically above the first and second horizontal pressing members 320 and 340. While the access road (K) is open, the web pressing plate 350 is rotated in the vertical lower part of the first and second horizontal pressing members 320 and 340, and the web pressing plate 350 is inside the flanges on both sides of the H-beam. Correction of compressing the web of the H-beam by a hinge method characterized by being inserted and protruded, and at this time, the compression distance between the wedge part 358 of the web pressing plate 350 and the "web of the H-beam" is minimized H-beam drawing machine with compensation structure According to claim 3
The protruding length f of the web pressure plate 350, the separation distance a from the first and second horizontal pressing members 320 and 340 to the end of the flange F of the H-beam, and B/2 of the flange of the H-beam A correction/compensation structure characterized by being compressed with the "H-beam" in the case of f = a = b, the case of f = a > b, or the case of f = a < b in the relation of width b H-beam drawing machine with According to claim 4
The web pressure plate 350 has a structure in which the body portion 357 and the wedge portion 358 form a wedge boundary surface and the wedge portion 358 slides with respect to the body portion 357, while the body portion 357 and the wedge portion Semicircular guide grooves 357a and 358a are opposed to the wedge boundary surface of (358), and the wedge portion 358 moves smoothly along the wedge boundary surface by the guide ball 356 inserted therein. H-beam drawing machine having a compensation/compensation structure characterized in that the vertical movement of the guide ball 359 and the wedge 358 is restricted by the stoppers 358 at the upper and lower ends of the guide grooves 357a and 358a

Images