KR101809510B1 - Pile driving apparatus with improved stability - Google Patents

Abstract

More particularly, the present invention relates to a driving device which is vertically arranged in a vertical direction so as to be vertical, a driving device which is disposed behind the reader and in which a wire driving part is integrally installed, A top sieve having a front pulley and a rear pulley mounted on the front and rear ends, respectively, a top auger coupled to the front of the leader so as to be able to move up and down along the leader and having a screw rod mounted thereunder, A lower auger disposed at a lower portion of the lower sidewall and coupled to the lower sidewall so as to be able to move up and down along the leader and to which the casing rod is mounted to surround the screw rod, A wire rope installed so as to be continuous in only one direction so as to face the drive unit via a pulley, Is installed in the unit is fixed and the other end of the wire rope, is provided as the upper and lower variable length comprises a lifting control leading to elevating of the lower auger.
According to the present invention, the lifting and lowering control unit for lifting and lowering the lower auger is disposed at the rear of the reader, and both end portions of the single wire rope continuous in one direction are directly connected to the lower auger and the lifting and lowering control unit, When the lower auger is lifted to lift the rod, the length adjusting wire provided on the elevator control portion is pulled so that the external force is supported to the rear of the leader, so that the leader is prevented from leading to the front, It is effective.
Further, it is possible to improve the price competitiveness of the product by reducing the manufacturing cost of the plowing device by improving only the joining structure of the wire rope connected to the lower auger, without installing a separate back tension to prevent the leader from being conducted.

Description

[0001] The present invention relates to a pile driving apparatus with improved stability,

More particularly, the present invention relates to a pneumatic device having improved stability, and more particularly, it relates to a pneumatic device having improved stability, in which a load applied to the front of a reader by a pulling process of a casing and a screw itself and a load of a casing itself is rearwardly dispersed, The present invention relates to a hitching device having improved stability.

In general, modern buildings tend to have higher stratification and larger size, and such high-rise buildings are greatly affected by vertical load or wind force due to their own weight. As a result, such a structure is constructed as a structure that is supported by supporting files supported on the ground layer through the stratum. Such a file construction is impacted by a hovering or the like to impact the files directly into the ground, and an auger There is a drilling method to drill the excavation hole and to close the pile in the excavation hole.

FIG. 1 and FIG. 2 are views showing a cross-sectional structure of a general hanger using a conventional auger.

Generally, in the base file, ie, the double rod auger (DRA) method in the excavation of the ground, the inner auger and the outer casing auger (ie, the upper auger 1 and the lower auger 2) (2), and then, when the file is seated, it is pushed up by a vehicle so that the file is completely seated on the support layer.

The upper auger 1 and the lower auger 2 are vertically coupled to a leader 3 and a screw rod 4 is mounted on the upper auger 1. The upper auger 1 A casing rod 5 is mounted on the lower auger 2, and the screw rod 4 is accommodated in the casing rod 5. The casing rod 5 protects the soil from being broken when the screw rod 4 punctures the ground.

In order to balance the force between the upper auger 1 and the lower auger 2, the screw rod 4 rotates in a clockwise direction and the casing rod 5 rotates counterclockwise to perforate the ground, The compressed air is introduced into the casing rod 4, whereby the slime clay is discharged to the upper side of the lower auger 2. [

When the screw rod 4 and the casing rod 5 reach the supporting layer, the upper auger 1 rotates the screw rod 4 in the reverse direction to pull out the screw rod 4 and remove the screw rod 4, And the casing rod 5 are separated from each other and then the file is inserted into the casing rod 5 and then the driving part of the lower auger 2 is coupled to the casing rod 5 again to rotate the lower auger 2 clockwise When the casing rod (5) is pulled up, the file is installed on the ground, the file installed on the ground is aroused by the hover, and the installation of the file is completed when the file is completely placed on the support layer.

The upper auger 1 and the lower auger 2 are connected to the side of the winch drum 8 of the operation vehicle on which the leader 3 is mounted by the wire rope 7 to wind the wire rope 7 with the winch drum And controls the upward and downward movements of the upper auger 1 and the lower auger 2 while loosening.

The top sieve 6 having a plurality of pulleys is mounted on the upper end of the leader 3 and the wire rope 7 is wound on the upper end of the upper auger 1 and the upper end of the lower auger 2 from the front side of the leader 3. [ And a plurality of front pulleys 9 'provided in front of the top sheave 6 are reciprocally wound around the rear ends of the front and rear sheaves 6, So that the end of the wire rope 7 is wound to the winch drum 8 side via the pulley 9 ".

In order to fix the wire rope 7 to the upper auger 1 and the lower auger 2, the front end portion of the top sheave 6 must have a shape protruding forward from the central axis of the reader 3, The wire rope 7 reciprocates a plurality of pulleys 9 disposed at the front end of the top sheave 6 at the front end of the leader 3 as described above, So that the external force applied by the screw 4 and the casing 5 is more supported by the front side of the reader 3.

That is, as shown in the figure, the wire rope 7 mounted on the upper auger 1 is composed of eight strands while being reciprocated up and down along the pulley 9 on the front side of the leader 3, For example, when a load of 5 tons is applied to one strand of wire rope 7, a total load of 40 tons is applied to the front side of the leader 3, 3 causes a serious problem that the leader 20 is forwarded by the huge load concentrated on the front side of the leader 3 or each unit tube joint of the leader 3 is damaged .

The lower auger 2 is also loaded with the load on the front side of the reader 3 in the same manner as the upper auger 1. The screw 4 is mounted on the upper auger 1, 2 is loaded with a casing 5 at a lower end thereof, and an enormous load is applied to pull out the casing 5 in the process of drawing the casing 5 intruded into the ground.

In this way, the load applied to the lower auger 2 can lead to forward movement of the reader 3, breakage of the joint portion of the unit tube of the reader 3, and even if the reader 3 is not damaged, The bending stress can be generated so that warpage or the like of the connecting portion of the unit 3 and the connecting portion between the reader 3 and the operating vehicle can be deformed and the leader 3 can be deformed by the deformation of the upper and lower augers 1, 2) can not perform the role of the ascending / descending route of the lower auger (1, 2).

In order to overcome such a problem, Korean Patent No. 1444916 discloses a technique in which a back tension is coupled to the back side of a top sheave so as to suppress a bending stress generated in a leader by a tensile force, but additional equipment is additionally installed, And increases the cost of producing a hovering device.

Therefore, it is possible to overcome the unreasonableness of such a conventional hitching device and to stably use the leader without being bent forward or forward by the pulling process of the casing and the screw itself and the load of the casing itself, without binding another back tension to the rear side of the leader There has been a growing demand for a hovering device for allowing the hovering device to be installed.

Korean Registered Patent No. 1444916

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to enable a leader to be used stably without being forwarded by a pulling process of a casing and a load of a screw and a casing itself.

According to an aspect of the present invention, there is provided a reader comprising: a reader installed vertically in a vertical direction so as to be vertical; a driving unit disposed at the rear of the reader and integrally provided with a wire driving unit; A top sieve having a front pulley and a rear pulley mounted on the front and rear ends, respectively, a top auger coupled to the front of the leader so as to be able to move up and down along the leader and having a screw rod mounted thereunder, A lower auger disposed at a lower portion of the lower sidewall and coupled to the lower sidewall so as to be able to move up and down along the leader and to which the casing rod is mounted to surround the screw rod, A wire rope installed so as to be continuous in only one direction so as to face the drive unit via a pulley; And an elevation control part for guiding the up and down movement of the lower augger while the other end of the wire rope is fixed and the vertical length is variable.

Wherein the wire driving unit includes a winch drum for winding the wire rope, the elevation control unit includes an elevating pulley body having a plurality of elevating pulleys arranged in a row on an upper portion of the winch drum, And a length adjusting wire which is connected to the winch drum and is connected to the lifting pulley on one side of the hoisting pulley body, and the other end is connected directly to the winch drum do.

The upper portion of the lower auger is provided with a second coupling portion for coupling one end of the wire rope and has a predetermined length for fixing both ends of the wire rope to the first and second coupling portions, The control wire is released from the winch drum, and the lifting pulley body is lifted upward along the length direction of the reader, so that the lower auger is lowered.

According to the present invention, the lifting and lowering control unit for lifting and lowering the lower auger is disposed at the rear of the reader, and both end portions of the single wire rope continuous in one direction are directly connected to the lower auger and the lifting and lowering control unit, When the lower auger is lifted to lift the rod, the length adjusting wire provided on the elevator control portion is pulled so that the external force is supported to the rear of the leader, so that the leader is prevented from leading to the front, It is effective.

Further, it is possible to improve the price competitiveness of the product by reducing the manufacturing cost of the plowing device by improving only the joining structure of the wire rope connected to the lower auger, without installing a separate back tension to prevent the leader from being conducted.

FIG. 1 and FIG. 2 are views showing a cross-sectional structure of a general hanger using a conventional auger.
3 and 4 are cross-sectional views illustrating a straddle-type hovering device according to the present invention.
5 is a schematic view showing a connection structure of a wire rope of a hovering device having improved stability according to the present invention.
6 is a side sectional view showing the operation of the tackle device according to the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 3 and 4 are views showing a cross-sectional structure of an improved riding device according to the present invention, and FIG. 5 is a schematic view illustrating a connection structure of a wire rope of an improved riding device according to the present invention.

Referring to the drawings, the trolling apparatus with improved stability according to the present invention includes a driving unit 20, a reader 10, a top sheave 30, an upper auger 40, a lower auger 50, a wire rope 60, And an elevation control unit 70.

The reader 10 is mounted on one side of the driving unit 20 in such a manner that a plurality of unit tubes are continuous in the up-and-down direction and is perpendicular to the driving unit 20. The reader 10 plays the role of an ascending / descending traveling path in which the upper auger 40 and the lower auger 50 are moved in an upright state.

The driving unit 20 is disposed behind the reader 10 and the wire driving unit 21 is integrally provided. The wire drive unit 21 includes a winch drum 22 for winding a wire rope 60 on a cylindrical drum to pull the wire rope 60 and a wire rope 60 connected to the upper auger 40, And a second winch drum 22b for pulling the wire rope 60 connected to the lower auger 50. The first winch drum 22a is provided with a first winch drum 22a.

The top sheave 30 is provided at the upper end of the reader 10 as a plate provided with a plurality of pulleys in various directions. The front sheave 30 is provided with a plurality of front pulleys 31 at the front end corresponding to the front side of the leader 10 on which the upper and lower augers 40 and 50 are installed, And a plurality of rear pulleys 32 are mounted on the end portions, respectively.

The upper auger 40 is coupled to the front side of the reader 10 so as to be movable upward and downward along the reader 10, and a screw rod 41 is attached to the lower end thereof.

The lower auger 50 is disposed on the lower side of the upper auger 40 on the front side of the reader 10 and is coupled to be movable up and down along the leader 10, (51) is mounted. A second joint portion 52 for fixing the wire rope 60 is formed on the upper portion of the lower auger 50. The wire rope 60 is inserted into the joint hole 72a formed in the second joint portion 52, Is directly connected.

The wire rope 60 includes a first wire 61 having one side mounted on the upper auger 40 and the other side connected to the driving unit 20 via the top sheave 30 and a second wire 61 having one side connected to the lower auger 50, And the second wire 62 connected to the driving unit 20 through the top sheave 30 as the other side.

The first wire 61 includes a plurality of pulleys 42 having one side arranged in a line on the upper side of the upper auger 40 and a plurality of front pulleys 31a mounted on the front end of the tower sheave 30 up and down And the other side is directly connected to the first winch drum 22a disposed at the lower rear side of the leader 10 via the front pulley 31a and the rear pulley 32a so as to be wound on the first winch drum The first wire 61 is wound or unwound on the first winch drum 22a by the rotation of the first winch drum 22a so that the upper auger 40 is moved up and down.

The second wire 62 is fixed at one end to the second engaging portion 52 by a single wire and extends upwardly of the leader 10 so that the front pulley 31b and the rear pulley 31b of the top sheave 30, Is directed to the drive unit 20 located on the rear side of the reader 10 via the drive unit 32b and the other end is fixed to the drive unit 20. [ The second wire 62 is wound around a plurality of pulleys such as the first wire 61 and a plurality of front pulleys 31 provided at the front end portion of the top sheave 30 in a bidirectional manner, As shown in FIG. That is, the second wire 62 is formed only in one strand at the front side and the rear side of the reader 10.

The other end of the second wire 62 is not directly connected to the second winch drum 22b like the first wire 61 but is fixed to the elevation control unit 70 so that the length of the elevation control unit 70 The lower auger 50 is raised and lowered.

The lifting and lowering control unit 70 includes a lifting and lowering pulley body 71 having a plurality of lifting and lowering pulleys 71a arranged in a row on the upper portion of the second winch drum 22b, A first engaging portion 72 to which the other end of the wire 62 is fixedly engaged and a second engaging portion 72 to which one end side is fixed to the second winch drum 22b and the other elevation pulley 71a of the elevation pulley body 71, A length adjusting wire 73 that is wound around a plurality of the winch drums 22b to be wound and unwound from or unwound from the second winch drum 22b changes the interval between the second winch drum 22b and the elevating flip body 71 .

Here, the second wire 62 is wound around the pulley so as to be reciprocally wound around the pulley, and the fixed length of the second wire 62 with respect to the lower auger 50 is not adjusted by being unwound or wound on the winch drum 22 through the allowance length, And the second wire 62 is connected to both ends of the first engagement portion 72 and the lower auger 72 of the lifting and lowering control portion 70, 50 are fixed to the second engaging portion 52 of the second wire 62 so that the gap between the lower auger 50 fixed to the second wire 62 and the lifting pulley body 71 is maintained, The lifting pulley body 71 is lifted upward along the longitudinal direction of the leader 10 by releasing from the second winch drum 22b so that the gap between the second desired drum 22b and the lifting pulley body 71 is widened, The lower auger 50 disposed in front of the lower frame 10 is lowered.

The length of the connection between the lower auger 50 and the drive unit 20 is not directly controlled by the second wire 62 mounted on the lower auger 50 using a pulley, 10 so that the length of the lifting and regulating portion 70 is adjusted to cause the lower auger 50 to be raised and lowered.

In the following, the operation of the plowing device according to the driving of the wire rope will be described in detail.

6 is a side sectional view showing the operation of the tackle device according to the present invention.

Referring to FIG. 3, in order to puncture the ground, the upper and lower augers 40 and 50 should be moved downward along the longitudinal direction of the reader 10. The upper and lower augers 40 and 50 are lowered while the first and second winch drums 22a and 22b are operated to unwind the wires wound on the first and second winch drums 22a and 22b .

At this time, the upper auger 40 is pulled forward from the rear of the leader 10 while the first wire 61 is unwound from the first winch drum 22a, and a plurality of forward The first wire 61 wound continuously and reciprocally between the pulleys 31a and the pulleys 42 provided on the upper part of the upper auger 40 is disengaged and the front pulley 31a and the upper part of the upper auger 40 The upper auger 40 is lowered as the gap between the pulleys 42 is increased.

When the second winch drum 22b is operated, the length adjusting wire 73 connected to the second winch drum 22b is disengaged and the gap between the second winch drum 22b and the lower auger 50 is increased The second wire 62 fixed to the upper portion of the elevation pulley body 71 is moved upward so that the front pulley 71a is pulled up from the rear pulley 32b of the top sheave 30 while the elevation pulley 71a is moved upward, 31b, the second wire 62 is moved downward on the front side of the reader 10, and the lower auger 50 is lowered.

The lower auger 50 is installed at the rear of the reader 10 so that the length of the lift controller 70 can be adjusted in the rear of the reader 10, The upper auger 40 is lifted and lowered while the first wire 61 wound on the pulleys 42 is extended on the front side of the leader 10.

That is, the lower auger 50 is loaded on the front side of the reader 10 with one strand of wire, and is similarly connected to the rear side of the reader 10 by one strand of wire. So that an external force is applied to the rear side of the reader (10) so that the load is supported by the installed lift controller (70).

Particularly, when the second wire 62 is pulled by winding the second winch drum 22b to pull the casing rod 51 intruded into the ground after the ground is punctured, the second wire 62 The balance between the front and the back of the reader 10 is adjusted with a single strand so that the load does not move toward the front of the reader 10 and a large external force is supported by the lift control unit 70 provided at the rear of the reader 10, 10 can be stably used without being forwarded.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, the scope of the appended claims should include all such modifications and changes as fall within the scope of the present invention.

10: Leader
20: Driving unit 21: Wire driver
22: winch drum 22a: first winch drum
22b: second winch drum
30: Top sieve 31: Front pulley
32: Rear pulley
40: upper auger 41: screw rod
50: Lower auger 51: Casing rod
52: second engaging portion 52a: engaging hole
60: wire rope 61: first wire
62: second wire
70: lift control portion 71: lift-up pulley body
71a: lifting pulley 72: first engaging portion
72a: coupling hole 73: length adjusting wire

Claims (3)

A reader installed vertically so as to be vertical;
A driving unit disposed behind the reader and integrally provided with a wire driving unit,
A top sheave provided at an upper end of the leader and having front and rear pulleys respectively mounted at front and rear ends,
An upper auger which is coupled to the front of the reader so as to be able to move upward and downward along the reader and to which a screw rod is mounted,
A lower auger disposed at a lower portion of the upper augger and coupled to the lower portion of the lower auger to be able to move up and down along the leader,
A wire rope fixed at one end to the lower auger by one line and extending upwardly to the other side and being directed to the drive unit disposed at the rear of the leader via a front pulley and a rear pulley of the top sheave, Wow,
And a lifting / lowering control unit installed on the wire driving unit to fix the other end of the wire rope and to guide up / down movement of the lower augger while varying the length of the wire rope,
Wherein the wire driving unit includes a winch drum installed in the driving unit to wind the wire rope,
The lifting and lowering control unit includes a lifting and lowering pulley body having a plurality of lifting and lowering pulleys arranged in a line on an upper portion of the winch drum, a first engaging part formed at an upper end of the lifting and lowering pulley body and fixed to the other end of the wire rope, The winch drum is fixed to the winch drum, and the other side of the winch drum is reciprocally wound around the hoisting drum and the hoisting drum of the hoisting and lowering pulley body to be wound and unwound from the winch drum, Wire,
The lower auger is provided at its upper portion with a second engaging portion to which one end of the wire rope is fixedly coupled so that the lower auger fixed to the wire rope and the hoisting pulley body maintain a predetermined interval, Wherein the lifting pulley body is lifted along the longitudinal direction of the leader and the lower auger disposed at the front of the leader is lowered while the wound length control wire is loosened.
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