JPS5840119Y2 - drop hammer device - Google Patents

Description

[Detailed description of the invention] This invention relates to a drop hammer device for driving support piles for guardrails installed on roads, sheet piles, etc. to be driven when excavating the ground, and is particularly applicable to installation on the body of a car. In other words, a back and forth movement guide means is provided on the car body 1 of the automobile and is arranged in the direction of the car body, and a disk 6 is fixed to the back and forth movement guide means via a supporting leg 5. A rotary table 9 capable of plane rotation is provided on the plate, and the rotary table 9 supports a driving means for rotating itself in the plane in forward and reverse directions, and furthermore, on the rotation table 9, there is a support provided with a drop hammer. 18 so as to be movable back and forth, a drive means for moving the column forward and backward, a means for raising and lowering the column, and a means for driving the drop hammer up and down.

Next, an embodiment of this invention shown in the drawings will be described.

Reference numeral 1 denotes an automobile body; 2 and 3 denote longitudinal movement guide means made of double tubes; is slidably provided within the outer tube 2.

Both inner tubes 3, 3 are driven back and forth by one hydraulic cylinder 4.

A cut groove 2a is formed in the upper surface of the outer tube 2 in the axial direction thereof, and a support leg 5 fixed to the upper surface of the inner tube 3 projects from the upper part of the outer tube 2 through the cut groove 2a.

Reference numeral 6 denotes a disk fixed on the support leg 5, on the outer circumference of which a large number of engagement rods 7 are fixed and erected in the circumferential direction, the upper part of which is connected by an annular plate 8, forming a gear body as a whole. are doing.

Reference numeral 9 denotes a circular rotary table consisting of two upper and lower plates, and is rotatably mounted on a rotary shaft 10 provided on the disk 6.

Reference numeral 11 denotes a gear provided on the rotary table 9, which meshes with the engagement rod 7 of the disc 6. The rotary table 9 is also equipped with a drive motor 12, which drives the gear 11.
The drive motor 12 for turning is designed to rotate the
The rotating table 9 is rotated in the forward and reverse directions by the forward and reverse rotation of the rotary table 9.

13.14 and 13a, 14a are double pipe guide means for left and right movement, the outer pipes 13, 13a are fixed on the upper plate of the rotary table 9 in two non-parallel ways, and the inner pipes are 14.14a is slidably mounted within the outer tube 13.13a.

The inner tubes 14, 14a are moved forward and backward independently by hydraulic cylinders 15.15 fixedly installed in the outer tubes 13.13a, respectively.

Further, grooves 13 b and 13 C are formed in the upper surface of each outer tube 13 , 13 a in the axial direction.

Support plates 16 and 17 are fixed to the upper surface of one of the inner tubes 14 so as to protrude onto the outer tube 13 through the groove 13b, and a drop plate is attached to the support plate 16 in front of the inner tube 14. A pillar 18 of the hammer is supported so as to be movable, and a cylinder 19 connected to the pillar 18 is swingably connected to the rear support plate 17.

Further, a support plate 20 is provided on the upper surface of the other inner tube 14a, and a cut groove 1
It is fixed to the outer tube 13a so as to protrude through the outer tube 13a, and the elevating means 22 of the drop hammer 21 is fixed to the upper part of the outer tube 13a.

The elevating means 22 includes a hydraulic cylinder 23 fixed to the support plate 20, a fixed pulley 24 fixed to the rear of the hydraulic cylinder 23, and a movable pulley provided at the tip of a piston 25 that is moved forward and backward by the hydraulic cylinder 23. 26 and more.

Then, the wire 27 of the drop hammer 21 is wound between the two pulleys 24 and 26, and its tip is fixed to one of the pulleys, and the piston 25 is advanced by the operation of the hydraulic cylinder 23 to move the wire 27 between the pulleys 24 and 26. The drop hammer 21 is raised by increasing the distance between the pulleys 24 and 26, and the drop hammer 21 is lowered by retracting the piston 25 and reducing the distance between the two pulleys 24 and 26.

As described above, for example, when driving support piles for a guardrail on the shoulder or median of a road, the drive motor 12 for turning is driven to move the rotary table 9 so that the support piles 18 are aligned with the vehicle body 1. It turns so that it is positioned on the side, and operates the cylinder 19 to raise the column 18 to the state shown in the figure.

In order to adjust the position of the drop hammer 21 in the direction of the vehicle body, the cylinder 4 is moved back and forth to move the side inner tube 3.3 back and forth, thereby moving the column 18.

Furthermore, in order to adjust the position of the drop hammer 21 in a direction perpendicular to the vehicle body direction, both hydraulic cylinders 15 and 15 are moved forward and backward by the same amount, and both the side inner pipes 14 and 14a are moved forward and backward by the same amount. to move the support column 18.

In this way, by moving both the side inner tubes 14, 14a forward and backward by the same amount, the column 18 and the elevating means 22 can be moved while maintaining a constant distance between them.
It can be moved while maintaining its standing form and drop hammer operating settings.

After this positioning, the hydraulic piston 23 of the elevating means 22 is moved forward and backward, and the wire 27 is repeatedly pulled and loosened, and the drop hammer 21 is raised and lowered to drive the pile.

In addition, in the case of adjacent and continuous driving such as sheet piles, the inner pipe 3 of the guide means for forward and backward movement,
3 is sequentially moved by the distance to be cast by the operation of the cylinder 4, thereby changing the position of the column 18.

Thereby, the pouring work can be performed without moving the vehicle body 1 forward.

Further, when driving a stake at the rear of the vehicle body, this can be done by rotating the rotary table 9 so that the support column 18 is located at the rear of the vehicle body.

In this case, in order to adjust the position of the drop lever 21 in the direction of the vehicle body, the inner tube 3 of the longitudinal movement guide means,
3, or the inner tube 14 of the guide means for moving left and right.
14a is moved forward and backward, and adjustment in a direction perpendicular to the vehicle body direction is performed by rotating the rotary table 9.

Further, when going to a pouring site or when not working, the swing drive motor 12 is driven to rotate the rotary table 9 so that the left-right movement guide means faces toward the vehicle body, and to lower the support column 18.

In the embodiment shown in the drawings, the front and rear and left and right guide means of the support column 18 are constructed of double pipes, but they may be constructed of other structures.

If it is configured with a double pipe as in the embodiment, the large load acting on the inner tube can be supported by the outer tube, and the tube can be moved while being supported by the brackets.

As described above, with this invention, the drop hammer can be located on the side and rear of the car body, and its position can also be adjusted, making the pouring work extremely convenient and efficient. In addition, in particular, by making the support columns movable in the direction of the vehicle body using a moving device, it is possible to move the next pile in close succession, such as sheet piles, for example. Since there is no need to move the car a small amount each time the button is pressed, the work can be done extremely conveniently and efficiently.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; Fig. 1 is a side sectional view, Fig. 2 is a plan view taken from line II-II in Fig. 1, and Fig. 3 is a view seen from the rear of the vehicle body. be. 2 Vehicle body) Disc engagement rod and gear fixed to the inner tube 3 of the guide means for longitudinal movement Planar rotation drive means/driving motor 9...Rotary table 13, 13 a-°-°°3 Guide means for left and right movement 14.14a...Inner tube 15...Cylinder 19 which is a driving means for advancing and retracting the column...Cylinder 18 for raising and lowering the column
. . . Support column 22 . . . Lifting and lowering drive means for the drop hammer.

Claims (1)

[Scope of utility model registration request] A longitudinal movement guide means arranged in the direction of the vehicle body is provided on the vehicle body 1 of the automobile, a disk 6 is fixed to the longitudinal movement guide means via a support leg 5, and a rotary table capable of plane rotation is mounted on the disk. The rotary table 9 supports a driving means for rotating the rotary table 9 in a plane in forward and reverse directions, and also supports a column 18 equipped with a drop hammer so as to be movable back and forth on the rotary table 9. A drop hammer device comprising a drive means for advancing and retracting a column, a means for raising and lowering a column, and a means for driving a drop hammer up and down.