KR19990023523A - File drawing machine - Google Patents

Abstract

The present invention relates to an H-pile drawing machine which extracts buried H-pile by one drawing operation in order to prevent the collapse of the excavated ground, and the towing wire wound from the first winch of the crane is connected to the main rail of the boom tip. A support member comprising: a connecting member for hinge-joining a hinge pin to a first connecting member at the distal end of the boom and a second connecting member having a fixing plate fixed to an upper pair of upper supports; A pair of left and right supporters each having a rectangular cross-sectional shape and a predetermined length is provided with a flange portion bolted to the fixing plate of the second connection member at the upper end thereof, and a leader body forming a footing supported on the ground at the lower end thereof. Wow; A fixed pulley unit comprising a plurality of pulleys fixedly installed between upper and inner sides of the leader body to wind the towing wires supported by the main rail of the boom base end portion; A moving pulley unit comprising a plurality of pulleys and a fixed plate supported by winding a traction wire continuously from the pulleys of the fixed pulley unit; A connecting member bolted to the lower side of the fixed pulley of the movable pulley unit, and a holder in which a pair of left and right hinge arms are hinged to the connecting member and chucks are engaged to engage the web of the H pile at the end of the hinge arm. , By moving up and down the mobile pulley unit by the winding operation of the first winch, characterized in that configured to draw the H-file engaged in the chuck.

Description

File drawing machine

The present invention relates to a device for extracting H piles which have been temporarily buried to prevent the collapse of the excavated ground before the main construction in the construction of concrete structures by excavating the ground, especially in the ground. It is possible to extract the H file by one drawing operation, which not only improves the efficiency of drawing work but also enables safe drawing so that it can be recycled without damaging the H file during drawing, and also does not cause vibration and noise generation. It does not relate to H file extractors.

In general, when installing a structure by excavating the ground in a construction work that installs the structure by excavating the ground, especially in a soft ground or a burrow construction of urban subway, the H pile is placed on the ground around the site where the structure is installed. Many install at regular intervals.

Thereafter, the ground plate is sandwiched between the H piles embedded in the ground while excavating the ground and stably supporting the earth pressure.

At this time, the H pile used is a beam used for grouting and ground reinforcing methods, and the coating agent is applied in advance to be installed in the ground at a predetermined depth from the ground surface prior to the main construction. Since it is applied, make sure that the H pile is drawn well when drawing.

On the other hand, after the construction of the structure is completed by removing the earth plate and cover the excavated ground. By the way, the H file is buried at the time of cover, but because the H file is expensive, it has to be extracted to re-use the buried H file.

However, since the unit length of buried H piles is usually supported by earth pressure in the buried ground with a length of about 12-15m, special equipment is required to extract these H piles, especially the drawing of H piles. When working, equipment that shortens the construction period and draws quickly is required.

In addition, if the unit length of the H pile is large, it is not easy to handle, such as transportation and arrangement, so that not only do not damage these H piles, but also the safety of the worker should be used.

In addition, when drawing files in the downtown area as a work type, equipment to prevent pollution, such as prevention of noise or vibration during operation, should be used in advance.

In the related art, Korean Utility Model Publication No. 97-01414 is known.

This conventional technique is shown in Figs. 1A and 1B, in which both sides of the base 2, on which the upper plate 1 is fixed with bolts and nuts, on both sides, a channel-shaped guideway and a plurality of pinholes. And a pair of wheels 5 are rotatably attached to the semi-circular bearing fixed to the end of the piston rod 4 of the cylinder by positioning the cylinder 3 in the urinary chamber and fixing the pins. The roller 6 is fitted with a shaft 7 to which the roller 7 is attached and is fixed with a bolt and a nut, and the wheel 5 is passed through a chain 8 so that one end is fixed to the hook of the base 2 and the other end. The hook fixed to the hook is formed so that the pin can be hooked to the pin fixed to the recessed part of the punched drawing outlet (9), and the hole of the drawing press coincides with the hole of the support plate so that the fixing rod can be inserted and fixed. In the center of the upper plate (1), the ring is freely rotated Group hayeoseo the Civil Engineering Building drawing file is known.

This conventional technique is pulled compression by lifting the piston rod (4) stretched from the hydraulic cylinder (3) fixed symmetrically to the shaft (7) on which the wheel (5) on which the chain (8) is wound is mounted. Work to raise the piston rod 4 repeatedly from the hydraulic cylinder 3 several times by limiting the operating distance of the piston rod 4 by moving the H pile a in the sphere 9 upwards. Since the efficiency of drawing work is reduced, especially when the H file is long, it takes a lot of time to extract one, which has an uneconomical problem.

In addition, there is a problem in that a separate equipment such as a crane must be mobilized in addition to the drawing device in order to transport and arrange the H file drawn by the drawing device to a predetermined place.

Accordingly, an object of the present invention is to provide an H-pile drawing machine which increases the efficiency of drawing work by quickly drawing the buried H-file in one drawing operation, thereby reducing the work period and reducing the cost.

Another object of the present invention is to provide a pile puller that can be pulled out without failure even when the drawing capacity is large by dispersing the tension on the traction wire when the H pile is drawn through a plurality of double pulleys.

Another object of the present invention is to provide a safety means to prevent the damage of the file when the H file is drawn and to promote the safety of the worker, not only to safely draw the H file, but also to facilitate the handling and handling of the H file. To provide a drawing machine.

Still another object of the present invention is to provide a pile drawing machine which reduces noise generation and vibration during drawing of an H pile.

1A and 1B show a prior art pile drawer

Figure 2 is an overall operation of drawing the H file with the extractor of the present invention

Figure 3 is a perspective view showing the leader body of the present invention separately

Figure 4 is a perspective view of the pulley unit used in the present invention

Figures 5a and 5b is an operation diagram showing the arrangement of the pulleys mounted on the pulley unit and the connection state with the traction wire in the present invention

6 is a view showing a state in which the H-file is drawn out by the extractor of the present invention;

Figure 7 is an enlarged perspective view of the structure of the connecting portion of the boom and the leader body in the present invention

8 is an operation of the state mounted by the fixing wire after drawing the H-pile

Explanation of symbols for main parts of the drawings

10: crane 11: first winch

12: Second winch 13: Boom stand

14: towing wire 15: fixed wire

16: First auxiliary pulley 17: Judor pulley

20: connecting member 21: first connecting member

22: support bracket 23: second auxiliary pulley

24: hinge pin 25: second connecting member

26: Fixed Edition 30: Leader body

31: upper support 32, 33: flange

34: Lower support 35: Footing

40: fixed pulley unit 41: fixed plate

42, 43: pulley 50: mobile pulley unit

51: fixed version 52, 53: pulley

60: holder 61: connecting member

62: hinge arm 63: chuck

70: Weight 71: Hook rod

72: wire rope a: H file

b: concrete structure

When explaining the present invention by the accompanying drawings as follows.

2 and 3, the towing wire 14 wound from the first winch 11 of the crane 10 is supported by the main ladder 17 at the tip of the boom 13. In that,

Hinge coupling of the first connecting member 21 of the boom 13 and the second connecting member 25 formed with a fixing plate 26 fixed to the upper pair of upper support members 31 with a hinge pin 24. A connection member 20;

A pair of left and right supporters having a rectangular cross-sectional shape and a predetermined length maintain flanges at the upper end thereof, and flange portions 32 which are bolted to the fixing plate 26 of the second connecting member 25 are formed at the upper end thereof. A leader body 30 forming a footing 35 supported on the ground;

A fixed pulley unit 40 having a plurality of pulleys fixed between the upper and inner sides of the leader body 30 to wind the towing wires 14 supported by the main pulleys 17 of the boom-side end portion;

A moving pulley unit (50) comprising a plurality of pulleys and a fixed plate (51) supported by winding the tow wire (14) continuously from the pulleys of the fixed pulley unit (40);

The connecting member 61 bolted to the lower side of the fixed pulley 51 of the movable pulley unit 50, and a pair of left and right hinge arms 62 are hinged to the connecting member 61, and the H at the end of the hinge arm. It consists of a holder (60) in which chucks (63) for engaging the web of the pile are installed,

The moving pulley unit 50 is moved up and down by the winding operation of the first winch 11 so as to draw the H file engaged with the chuck.

The drawing machine of the present invention having such a configuration is constructed by assembling and connecting a crane and a leader. When the leader is separated, the drawing machine is used as a normal crane, and when assembled, a device that can be converted to a device for drawing a file or a sheet pile to be.

With reference to the drawing machine of the present invention made of the above configuration will be described in detail.

As shown in Figs. 2, 7 and 8, the connecting member 20 is fixed to the front end of the boom 13 to accommodate the main guide rails 17, and protrudes between the left and right ends of the second auxiliary pulley. The first connecting member 21 to which the support bracket 22 for fixing 23 is fixed, and the fixing plate 26 fixed to the flange portion 32 formed on the upper portion of the pair of upper supports 31 is fixed. And, the upper end is a structure that is hinged to the second connecting member 25 by the first connecting member 21 and the hinge pin 24.

Due to the hinge coupling structure of the connecting member 20, the upper end of the support is moved in the front and rear direction, so that the support is supported with a slight inclination from the ground so that the position of the moving pulley unit 50 and the holder 60 described later is H. It can be placed on the vertical line of the file.

As such, the fundamental reason for placing the H pile in a vertical line is that the force acted upon drawing is applied in a diagonal direction, thereby preventing the force from being dispersed, thereby allowing the H pile to be vertically pulled up by the vertically acting force. If it is pulled up diagonally, not only the pulling force is required but also the friction force is applied to the H pile, causing damage.

Meanwhile, as shown in FIGS. 7 and 8, when the H-pull drawn by the towing wire 14 and the holder 60 is raised to some extent, both sides fixed to the left and right sides of the first connection member 21 are supported. The second auxiliary pulley 23 is sandwiched between the brackets 22 and the fixing wire 15 wound from the second winch 12 is wound around the upper side of the H pile exposed from the ground to fix the H pile. Let it be

2 and 3, the leader body 30 is composed of a pair of left and right supports, which can be separated into an upper support 31 and a lower support 34, respectively. The flange portions 33 are formed at opposite positions, respectively, so that they can be disassembled and assembled. The upper end portion of the upper support 31 is bolted to the fixing plate 26 of the second connection member 25 by the flange portion 32. Each has a structure of, and the lower support 34 is a structure having a footing 35, each of which is in wide contact when in contact with the ground.

Although not shown, the support may be composed of a plurality of unit members, each of which may be assembled and disassembled by forming flanges at ends thereof. The reason for the formation of a plurality of unit members as described above is to facilitate the disassembly and loading on the vehicle.

Although the lower portion footing 35 of the lower support 34 is shown in a separate state, each of the lower pair of the support may be of a structure that is deformed in the form of connecting integrally. Although not shown, the footing 35 may be deformed into a structure that is separated from the lower support 34, and the cross-sectional area is advantageously wider because it is supported on the ground surface, particularly in the case of soft ground. It is preferable to increase the cross-sectional area.

3, 5a and 5b, the fixed pulley unit 40 is fixed to the upper plate between the inner side of the pair of the upper support 31 of the leader body 30 is fixed to the boom The towing wire 14 wound on the leading end lure 17 of 13 is wound up and supported by the plurality of pulleys 42 and 43 through the hole 27 of the first connecting member 21. It is a structural unit.

In addition, the moving pulley unit 50, as shown in Figures 4, 5A, 5B and 6, a plurality of upper and lower windings of the towing wire 14 wound and supported from the fixed pulley unit 40 The pulleys 52 and 53 and the holder 60 which will be described later are connected to the fixing plate 51 by bolting.

The reason for mounting the pulleys 42, 43, 52 and 53 arranged in plural in each of the pulley units in the vertical position is to increase the drawing capacity.

That is, as shown in FIGS. 5A and 5B, the pull wire 14 passing through the first auxiliary pulley 16 and the main pulley 17 at the tip end of the boom 13 is pulley of the moving pulley unit 50. And a state in which the pulleys of the fixed pulley unit 40 are sequentially wound in numerical order. Thus, by using a plurality of pulleys, a fixed pulley and a moving pulley for switching the direction of force applied to the towing wire 14 are shown. Since the force can be distributed by a number, even when the object to be drawn is large, the large force can be exerted.

The holder 60 is bolted to the connecting member 61 to the lower side of the moving pulley unit 50, and a pair of left and right hinge arms 62 are hinged to the connecting member 61 and at the end of the hinge arm. Structural portion is installed in the chuck (63) for engaging the web of the H pile (a), the weight 70 is fixed to the hook rod 71 at the end of one side chuck (63) as a wire rope (72) This is a structure that the chuck 63 keeps the release state of the H pile in the eccentric state when the moving pulley unit 50 is temporarily lowered after drawing.

The structure and function of the holder 60 and the weight 70 are described in detail in the specification of the patent application filed as the same, so a detailed description thereof will be omitted.

The operation procedure for the file extractor of the present invention configured as described above will be described step by step.

First stage

After construction of the concrete structure (b) is completed, the soil plates between the piles are removed, and the crane 10 is moved to the pile at the point where the cover is completed by applying the cover, and the H pile (a) buried in the center between the two side supports. After approaching the leader body 30 to be placed, the footing 35 is supported on the ground to stably support the leader body.

2nd step

Thereafter, the movable pulley unit 50 and the holder 60 which are wound and supported by the towing wire 14 from the fixed pulley unit 40 are positioned in a vertical line of the H pile a embedded therein. When the position is pushed forward, the leader body 30 hinged to the connecting member 20 is supported on the ground with a slight inclination. At this time, it is important to draw the H pile (a) in a vertical line, as described above, in order to force the force in the vertical direction.

Thereafter, the towing wire 14 wound around the first winch 11 is released, and the moving pulley unit 50 and the holder 60 are lowered, and the holder 60 connected with the moving pulley unit is connected to the upper end web of the H pile. To the upper part of the H pile between the two chucks (63).

3rd step

The movable pulley unit 50 is slightly raised together with the holder 60 which fixes the H pile so that the chuck 63 is in close contact with the pile and is fixed.

When the H-pile is drawn to some extent, the fixing wire 15 is wound from the second winch path 12 and wound around the second auxiliary pulley 23 that is squeezed between the support brackets 22 of the first connecting member 21. The H pile a is wound up and fixed, and the H pile a is pulled upward by winding the towing wire 14 and the fixing wire 15 with respective winches.

At this time, since the H-pile is lifted vertically, the H-pile is drawn in a sliding form upward with little noise and vibration.

4th step

When the majority of the H piles are drawn and located at a shallow depth in the ground, that is, a depth that is slightly supported in the ground, the moving pulley unit 50 is instantaneously lowered and pressed and fixed from both chucks 63 to thereby obtain the H pile in the bite state. The H file is separated from the holder 60 by releasing.

At this time, the weight 70 is to maintain the release state of the H file in the eccentric state. Thereafter, the movable pulley unit 50 is lifted by the traction wire 14 to completely separate the holder 60 from the drawn H-pile.

5th step

As such, when the H file is separated from the holder 60, the boom is moved while supporting the H file a with the fixing wire 15 to be mounted in a safe place, and the fixing wire 15 is released.

6th step

Thereafter, the leader body 30 is moved to the position of the H file, which is embedded in the ground, and the files are continuously drawn in the above steps.

The drawing operation of the file operated in the above-described sequence shows an excellent drawing operation efficiency by improving the efficiency of the work more than five times in the drawing speed at the time of drawing, unlike the prior art of FIGS. 1A and 1B.

The present invention constituted as described above not only increases the efficiency of drawing work by quickly drawing the buried H-file in one drawing work, but also facilitates drawing work because the manpower requirement is also possible in one pair. This can shorten the working period and reduce the cost.

In addition, the present invention has the effect that can be drawn without failure even if a large load is applied by distributing the tension applied to the traction wire when the H-pile is drawn through a plurality of double pulleys.

In addition, the present invention, since the H-pull is drawn in the sliding form, the noise generation and vibration is hardly generated during the drawing.

In addition, the present invention is equipped with a safety device for the file transport operation through a separate lifting means in order to prevent the damage of the file when the H-file is drawn, it is possible to draw and recycle without being damaged safely, as well as transport and clean up after drawing It has an easy effect, and it is also possible to disassemble and transport the leader when moving after work is completed.

Claims (6)

In that the towing wire 14 wound from the first winch 11 of the crane 10 is supported by the main ladder 17 at the tip of the boom 13, Hinge coupling of the first connecting member 21 of the boom 13 and the second connecting member 25 formed with a fixing plate 26 fixed to the upper pair of upper support members 31 with a hinge pin 24. A connection member 20; A pair of left and right supporters having a rectangular cross-sectional shape and a predetermined length maintain flanges at the upper end thereof, and flange portions 32 which are bolted to the fixing plate 26 of the second connecting member 25 are formed at the upper end thereof. A leader body 30 forming a footing 35 supported on the ground; A fixed pulley unit 40 having a plurality of pulleys fixed between the upper and inner sides of the leader body 30 to wind the towing wires 14 supported by the main pulleys 17 of the boom-side end portion; A moving pulley unit (50) comprising a plurality of pulleys and a fixed plate (51) supported by winding the tow wire (14) continuously from the pulleys of the fixed pulley unit (40); The connecting member 61 bolted to the lower side of the fixed pulley 51 of the movable pulley unit 50, and a pair of left and right hinge arms 62 are hinged to the connecting member 61, and the H at the end of the hinge arm. It consists of a holder (60) in which chucks (63) for engaging the web of the pile are installed, A file drawing machine comprising: a moving pulley unit (50) being pulled up and down by a winding operation of a first winch (11) to draw an H file engaged with a chuck. According to claim 1, wherein the leader body 30 is formed by separating the upper support 31 and the lower support 34, respectively to form a flange portion 33 in the opposite position to be coupled to each other to enable disassembly assembly File extractor characterized in that installed. The pile drawing machine according to claim 1, wherein the leader body (30) is composed of a plurality of unit supports and is assembled and disassembled by forming flanges at ends thereof. 3. The pile puller according to claim 2, wherein the lower end of the lower support (34) is formed with a footing (35) so as to be widely supported on the ground. 2. The file pulling machine according to claim 1, wherein the fixed pulley unit (40) and the moving pulley unit (50) each have a plurality of pulleys arranged in up and down positions to increase the pull capacity. The fixing wire 15 of claim 1, wherein the second auxiliary pulley 23 is squeezed between the two support brackets 22 fixed to the left and right sides of the first connecting member 21 to be wound from the second winch 12. File pulling machine characterized in that for fixing the H- file by).