KR20160142206A

KR20160142206A - Pile hammer

Info

Publication number: KR20160142206A
Application number: KR1020150097936A
Authority: KR
Inventors: 최초로
Original assignee: 최초로
Priority date: 2015-06-02
Filing date: 2015-07-09
Publication date: 2016-12-12
Also published as: KR101811921B1

Abstract

A hitching device is disclosed that includes a guide portion that is movably coupled in a vertical direction along a leader and guides a hammer in contact with at least a portion of the hammer, and at least one of efficiency, accuracy, and safety of the hitching operation can be improved.

Description

{PILE HAMMER}

The present invention relates to a hitching device.

Patent Documents 1 and 2 disclose a pile hammer or pile driver or a pile machine, etc., or a pile construction method using the same.

The term "hanger" means a device for forcibly inserting a pile or the like into an object such as a stratum in various manners such as a method of dropping a hammer, a method of slapping with a power such as steam, pneumatic pressure, or hydraulic pressure.

However, in the conventional horseshoe which employs the method of dropping the hammers, there is a problem that it takes a lot of time to fix the hammers in order to fix the hammers when the movements of the readers and the equipment move.

KR 10-1219299 B1 KR 2000-0028555 A1

One aspect of the present invention can provide a hitching device with improved working efficiency and accuracy.

The hitching device according to an embodiment of the present invention may include a guide portion that is coupled to move vertically along the leader and contacts the hammer to guide the hammer.

At this time, as the hammer rises, the guide portion is supported by the hammer when the hammer reaches the highest point with respect to the guide portion, and when the hammer further rises, the hammer and the guide portion can rise together. Furthermore, when the hammer begins to fall, the guide portion may be made to fall at a slower speed than the hammer.

On the other hand, the reader includes a main frame and guide rails, A guide rod for guiding vertical movement of the hammer; And a rail coupling part movably coupled to the guide rail at one side and coupled to the guide rod at the other side.

Here, the hammer may include: a main body inserted into the guide rod; And a guide bar supporting part for supporting the guide rod when the main body part is located at the highest point with respect to the guide rod.

According to one embodiment of the present invention there is provided a beneficial effect that at least one of efficiency, accuracy and safety of the plowing operation can be improved.

FIG. 1 is a view illustrating a use state of a hitching device according to an embodiment of the present invention.
FIG. 2 is a schematic view illustrating a hitching device according to an embodiment of the present invention.
FIG. 3 is a view schematically illustrating a coupling relationship of a main part in a driving device according to an embodiment of the present invention.
FIG. 4 is a schematic view illustrating a state in which a main part is engaged in a driving device according to an embodiment of the present invention.
FIG. 5 is a view for explaining a use state of the hitching device according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that the disclosure of the present invention is complete and that those skilled in the art will fully understand the scope of the present invention. Like reference numerals refer to like elements throughout the specification.

The terms used herein are intended to illustrate embodiments and are not intended to limit the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is to be understood that the terms 'comprise', and / or 'comprising' as used herein may be used to refer to the presence or absence of one or more other components, steps, operations, and / Or additions.

In addition, the embodiments described herein will be described with reference to cross-sectional views and / or plan views, which are ideal illustrations of the present invention. In the drawings, the detailed size, shape, thickness, curvature, etc. of each structure are exaggerated or schematized for effective explanation of technical contents, and the shape may be modified by tolerance or the like.

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

FIG. 1 is a view illustrating a use state of a hitching apparatus according to an embodiment of the present invention. FIG. 2 is a schematic view illustrating a hitching apparatus according to an embodiment of the present invention. FIG. 4 is a schematic view illustrating a state in which a main part is engaged in a hitching device according to an embodiment of the present invention, and FIG. 5 is a cross- FIG. 7 is a view for explaining a use state of a hitching device according to another embodiment of the present invention. FIG.

Referring to FIGS. 1 to 5, a hitching device according to an embodiment of the present invention includes a guide portion 20 for guiding a hammer 30. At this time, the guide portion 20 may be coupled to the reader 10 and provided to linearly move along the reader 10.

In general, the hitching operation is performed in such a manner that the heavy object such as the hammer 30 is lowered at a predetermined height to provide an insertion force to the striking object (O). At this time, one end of the wire W supported by the reader 10 or the like is connected to the hammer 30 so that the hammer 30 can be raised or dropped. The reader 10 or the like can be coupled with the vehicle 1 or the like through the support stand 2 or the like. The other end of the wire W may be connected to a winder (not shown) or the like, which may be installed in the vehicle 1 described above, so that the wire W can be wound or unwound.

On the other hand, the support 2 may mean a stay of a conventional hovering device or a boom of a crawler crane or the like.

The hammers 30 may be guided by the guiding portions 20 provided to raise or lower the hammers 30 along the reader 10 according to an embodiment of the present invention.

Thus, the speed, accuracy, safety, and the like of the process of moving the position of the hammer 30, the reader 10, the vehicle 1 and the like can be improved.

In one embodiment, the reader 10 may include a mainframe 11 and guide rails 12, which may include guide rods 21 and rail engagement portions 22 . The rail coupling portion 22 can be installed to be movable along the guide rail 12. [

In one embodiment, the hammer 30 may be movably coupled to the guide rod 21. [ At this time, the moving direction of the hammer 30 with respect to the guide bar 21 may be parallel to the longitudinal direction of the reader 10.

In one embodiment, the guide bar support portion 32 may be provided on the lower portion of the hammer 30. For example, a portion of the hammer 30 inserted into the guide bar 21 may be referred to as a main body 31, and a guide bar supporting portion 32 may be provided under the main body 31.

The guide portion 20 is moved upward along the guide rails 12 as the hammer 30 is raised. At this time, when the wire W is loosened, the guide portion 20 and the hammer 30 descend together to strike the object. Here, the hammer 30 is free to fall, whereas the guide portion 20 can be lowered at a slower speed than the hammer 30 due to frictional force or the like because the rail engaging portion 22 is engaged with the guide rail 12 have. In addition, when the guide portion 20 descends and continues to be accelerated, a strong impact may be applied to the reader 10 in the process of stopping the guide portion 20 reaching the lower portion of the reader 10. Therefore, the guide rail 12 and the rail-engaging portion 20 can be prevented from being accelerated beyond a predetermined speed, or the speed of the guide portion 20 can be reduced as the guide portion 20 approaches the lower portion of the reader 10. [ (22), or may have separate deceleration means.

Since a heavy object such as a hammer 30 is used in a state of being connected to a wire W, a rope or a cable in order to quickly move the hammer 30 or the like or to drop the hammer 30 etc. at an accurate point, The hammer 30 can be stably fixed through the guide portion 20. The hammer 30 can be fixed to the guide portion 20 in a stable manner, Therefore, it can be moved more quickly and safely.

Particularly, conventionally, in the case of the movement of the equipment and the movement of the hitting point of the hammer 30, considerable care must be taken since the hammer 30 may be shaken. As a result, It was difficult to make.

However, since the present invention includes the guide portion 20 for guiding the hammer 30, the horizontal movement of the hammer 30 can be minimized without interfering with the vertical descent of the hammer 30 for the hitching operation So that the position of the hammer 30 can be changed safely and quickly.

According to the present invention, the size and shape of the guide portion 20 and the hammer 30 must be determined so that the condition that the hammer 30 is guided by the guide portion 20 can be satisfied.

In one embodiment, the hammers 30 may be inserted into the guide rods 21 as shown.

In this case, the guide bar 21 can be formed to correspond to the shape of the hammer 30. That is, when the hammer 30 is formed into a cylindrical shape, a cylindrical hole having an inner diameter of at least the outer diameter of the hammer 30 may be provided at least inside the guide rod 21. At this time, if the inner diameter of the hole provided inside the guide rod 21 is excessively larger than the outer diameter of the hammer 30, a clearance may exist between the hammer 30 and the guide rod 21, The distance between the inner surface of the guide rod 21 and the hammer 30 may be adjusted by adjusting the weight, diameter, and length of the hammer 30, , Shape, and the like of the substrate.

In this case, the guide bar 21 may also include a polygonal hole corresponding to the shape of the hammer 30. [0035] As shown in FIG.

On the other hand, only the shape of the portion of the guide portion 20 opposed to or in contact with the hammer 30 is limited as described above, and the outer shape of the guide portion 20 is not particularly limited. That is, even if a cylindrical hole or the like is formed so as to correspond to the shape of the hammer 30, the outer surface of the guide portion 20 can be prevented from being deformed Square pillar shape, or the like.

In another embodiment, at least a part of the inner surface of the guide rod 21 has a shape corresponding to the shape of the hammer 30, and the other parts are realized so as to have various shapes within a range that does not hinder the insertion of the hammer 30 It is possible.

For example, even when the hammers 30 are formed in the shape of a cylinder, the guide rods 21 can have a polygonal columnar shape such as a square column. In this case, however, it is preferable that auxiliary means (not shown) such as protrusions are provided so that the hammer 30 can be smoothly inserted into the guide bar 21 and can be stably guided. For example, when the insertion hole shape of the guide bar 21 is a quadrangular prism, the hammer 30 can be inserted smoothly into the guide bar 21 only if the minimum value of the insertion hole width is larger than the maximum value of the outer diameter of the hammer 30 . However, in this case, the hammer 30 may be shaken in a direction having a width larger than the maximum value of the outer diameter of the hammer 30. Therefore, it is possible to further include a structure for reducing the shaking in this direction.

On the other hand, although only the example in which the guide rod 21 is formed in a columnar shape is shown in the drawing, the guide part 20 can be realized in various structures even if it is not a columnar shape, as long as the vertical movement of the hammer 30 can be guided. For example, when the protrusion (not shown) or the recessed groove (not shown) is provided on the outer surface of the hammer 30 in a vertically elongated form, the hammer 30 is inserted into the guide rod 21 A structure that can be in intimate contact with the corresponding recess or protrusion may be provided on the surface of the guide rod 21 facing the hammer 30. [

The hammer 30 is inserted into the guide rod 21 smoothly even if the guide rod 21 is formed to be wider and narrower toward the upper portion, The hammer 30 is able to support the guide portion 20.

However, the hammers 30, which are already in use, are formed in a substantially cylindrical shape. Even in the case of such conventional equipment, the guide unit 20 is additionally installed in the reader 10, Can be implemented. Considering this aspect, it may be desirable to determine the shape of the guide portion 20 in consideration of call completion with the hammer 30 that is already manufactured and in use.

In one embodiment, the guide rod 21 can be fixed to the reader 10 via the rail engaging portion 22, so that the guide rod 21, along with the guide rail 12, (21) can be moved.

The hammer 30 and the guide portion 20 start to be engaged with each other as the hammer 30 is lifted and the hammer 30 continues to rise and the guide portion 20 and the hammer 30 The hammers 30 and the guide portion 20 can be provided to rise together when the hammers 30 rise. The hammer 30 is inserted into the guide rod 21 when the hammer 30 rises while the guide portion 20 is positioned at a predetermined height. The hammer 30 and the guide portion 20 are raised together with the hammer 30 not being inserted deeper into the guide bar 21 even when the hammer 30 is continuously raised .

Here, although the guide portion 20 is illustrated as being positioned below the hammer 30 in the drawings, various modifications are possible. That is, a lid or the like, which can pass the wire W but not the hammer 30, may be provided on the upper portion of the guide rod 21 so that the hammer 30 can support the guide portion 20 . It is also possible to provide a predetermined protrusion or the like on the side surface of the hammer 30 so that the protrusion rises along the guide portion 20 and can no longer rise above the guide portion 20 above a predetermined height .

As described above, after the hammer 30 reaches the highest point of the hammer 30 with the guide portion 20 as a reference, the hammer 30 supports the guide portion 20, It is possible to raise the guide portion 20 without using any separate driving means. Also, since the hammer 30 is stably supported by the guide portion 20 even in this ascending process, the safety can be sufficiently secured even if the raising speed is increased as compared with the conventional art. As a result, the working time can be shortened.

Although not shown, it is of course possible to provide a separate driving means for moving the guide portion 20. However, as in the above-described embodiment, the hammers 30 It is advantageous in terms of equipment cost, operation cost, safety, and the like.

Meanwhile, the operation principle of the driving device according to the embodiment of the present invention can be explained as follows.

First, the force for raising or fixing the hammer 30 can be released in a state where the hammer 30 is raised to a predetermined height. For example, the wire W is coupled to the upper portion of the hammer 30, and the attraction force provided through the wire W can be released.

As a result, the hammer 30 and the guide portion 20 start falling. On the other hand, since the hammer 30 is the ultimate target of the hitching device, it is the ultimate goal of the hitching device to provide a sufficient insertion force to the hitting object, such as the file P, So that there is no contact between the hammers 30 and the hammers 20 is advantageous in achieving the target of the hammers. That is, it is advantageous to minimize the speed reduction by the guide portion 20 during the dropping of the hammer 30 which determines the hitting force. Accordingly, the hitching device according to the embodiment of the present invention allows the hammer 30 to fall at a faster speed than the guide portion 20, so that a sufficient striking force can be realized. The frictional force between the guide rail 12 and the rail engaging portion 22 is set such that the frictional force between the rail engaging portion 22 and the guide rail 12 is greater than the frictional force between the guide rod 21 and the hammer 30. [ The coupling relationship and the coupling relation between the guide bar 21 and the hammer 30 can be realized.

On the other hand, the upper limit and the lower limit of the movement of the guide portion 20 with respect to the reader 10 can be defined. At this time, when the guide portion 20 reaches the lower limit point on the reader 10, when the guide portion 20 reaches the lower limit point as fast as the hammer 30, the impact generated in the process of stopping the guide portion 20 at the lower limit The rail coupling portion 22, the guide rail 12, the reader 10, and the like. Such an impact may damage the joint between the respective elements, and may further cause damage to the equipment including the vehicle 1 and the like. It is preferable that at least the guide portion 20 is decelerated to a predetermined speed or less before the guide portion 20 reaches the lower limit reference position of the reader 10. In one embodiment, (Not shown) for decelerating the descending speed of the unit 20 may be provided.

Next, if additional hitting is required after the hammers 30 are lowered and struck the target, the hammer 30 is raised by providing a force to the wire W. [ At this time, the coupling of the guide portion 20 and the hammer 30 is started while the hammer 30 is lifted. For example, the upper portion of the hammer 30 starts to be inserted into the guide bar 21. After the hammer 30 continues to rise and the hammer 30 reaches the highest point with respect to the guide portion 20, the guide portion 20 is raised together with the hammer 30. Thereafter, the above-described processes may be repeated as many times as necessary by feeding back the descending process of the hammer 30 described above.

On the other hand, the position of the reader 10 can be changed in a state where the hammer 30 is in contact with the guide portion 20 when the striking operation for the specific striking object is completed. That is, equipment such as the vehicle 1 may move to a new hitting work position, or the reader 10 may move to position the hammer 30 correctly. Since the hammer 30 is stably supported by the guide portion 20 during the process of moving the hammer 30 in this manner, it is possible to move quickly while reducing the risk of a safety accident.

Referring to FIG. 5, the hitching device according to another embodiment of the present invention may hit a separate striking object O that is located inside the pile P when the hammers 30 enter the pile P .

In this case, the guide portion 20 may be positioned at a lower limit position with respect to the reader 10, but may be different depending on the weight of the hammer 30, the diameter of the striking object O, The striking process can be performed in a descending manner.

For example, when the hammer 30 can be lowered to a free fall, the hammer 30 is guided to the guide portion 20 in a state where the guide portion 20 is stopped at the lower portion of the leader 10, The impact object O may be struck in such a manner that the hammers 30 are allowed to fall freely.

In one embodiment, the guide portion 20 is fixed at a specific point on the leader 10, and the hammer 30 can fall and strike the striking object. Here, the guide portion 20 is located at a height near the upper end of the paper E and the file P, and the hammer 30 can start to descend after ascending to the highest point with respect to the guide portion 20. This embodiment is characterized in that a separate striking object O is located inside the pile P inserted in the layer E and the hammers 30 fall into the pile P and strike the striking object O It can be usefully applied. According to this embodiment, when the hammer 30 striking the striking object O is raised, the swinging motion of the hammer 30 can be minimized because it is guided by the guide portion 20. Therefore, the state in which the descent of the hammer 30 can be started can be prepared more quickly.

Accordingly, the efficiency of performing repetitive striking operations on the same striking object O can be remarkably improved.

Further, after the striking operation for one striking object O is completed, a striking operation for another striking object O (not shown) located at another position may be performed. In this case, the hammers 30 can be moved up to another position where the hitting operation is performed while being supported by the guide portion 20. Therefore, since the shaking of the hammer 30 can be minimized even in the process of moving the hammer 30, the risk of occurrence of unnecessary collision around the work site can be remarkably reduced, and safety can be improved, will be.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. Accordingly, it is to be understood that the above-described embodiments are illustrative in many aspects and not restrictive, and the scope of the present invention is indicated by the appended claims rather than the foregoing description, And all changes or modifications derived from the equivalents thereof should be construed as being included within the scope of the present invention.

1: vehicle
2: Support
10: Leader
11: Mainframe
12: Guide rail
20: guide portion
21: Guide rod
22: rail coupling portion
30: Hammer
31:
32: Guide bar support
W: Wire
P: file
E: strata
O: hit object

Claims

And a guide portion movably coupled in the vertical direction along the leader, the guide portion contacting with at least a part of the hammer to guide the hammer.

The method according to claim 1,
Wherein the guide portion is supported by the hammer when the hammer reaches a maximum point with respect to the guide portion as the hammer rises, and when the hammer further rises, the hammer and the guide portion rise together.

The method of claim 2,
And when the hammer begins to fall, the guide portion drops at a slower speed than the hammer.

The method according to claim 1,
The reader includes a main frame and guide rails,
The guide portion
A guide rod for guiding vertical movement of the hammer; And
And a rail coupling part movably coupled to the guide rail at one side and coupled to the guide rod at the other side.

The method of claim 4,
The hammer includes:
A main body inserted into the guide rod; And
And a guide bar supporting portion for supporting the guide rod when the main body portion is located at the highest point with respect to the guide rod.