JP7195009B2 - positioning device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a position determination device that determines the position of a pile driving device by linearly moving and can further adjust the driving angle.

Conventionally, a pile driver, which is an improved construction machine such as a hydraulic excavator, has been used for installation of protective fences, installation of foundation supports for solar panels, and construction of foundations for fences. Specifically, it is a structure in which the tip of the boom is improved and a pile driver is attached.

Patent Literature 1 discloses a pile driving attachment and a pile driver that can accurately drive a pile vertically even on an inclined surface. Specifically, instead of the arm and bucket attached to the hydraulic excavator, a pile driving attachment is attached to the tip of the boom. The driving position of the pile can be determined by operating the boom cylinder to rotate the boom forward and backward.

Patent Literature 2 discloses a pile driving device in which a hydraulic breaker and a press-fitting gisel are attached instead of a bucket attached to a hydraulic excavator.

However, in the method of determining the driving position of the pile by rotating the boom in the longitudinal direction as described above, if the pile driver is to be horizontally moved, it is always accompanied by rotational displacement. Therefore, when attempting to cause a predetermined horizontal displacement, the amount of rotational displacement differs depending on the position of the boom. Specifically, when the pile driver is moved horizontally for a given length, when the boom is positioned substantially parallel to the ground surface, the rotation is greater than when the boom is positioned substantially vertically. movement is required.

If you want to move the pile driver horizontally while suppressing the rotation of the boom as much as possible, you can place the boom in a position close to the vertical to the ground surface in advance. It is difficult to maintain stable support. Furthermore, when the hydraulic excavator is moved with the boom almost perpendicular to the ground surface, the center of gravity becomes high, which makes the excavator unstable. In particular, construction in a work place with many uneven surfaces is dangerous. In addition, if the support position of the pile driver is lowered, it is necessary to rotate the boom greatly in order to move the pile driver horizontally. Furthermore, when moving the hydraulic excavator with the boom almost horizontal with respect to the ground surface, it is difficult to move unless the work area is wide. That is, the boom height at which the pile driver can be positioned efficiently is limited.

JP 2013-177764 A Utility Model Registration No. 3221669

SUMMARY OF THE INVENTION An object of the present invention is to provide a position determination device for a pile driver that is compact and has excellent mobility, by linearly moving the pile driver, so that the driving position and direction of the pile can be easily determined. .

The invention for solving the above-mentioned problems is a position determining device for specifying the position and direction of a pile driver, comprising: a rotating body rotating about a turning axis; and a slider strut extending upward from the edge of the rotating body. an elevating member slidably fitted to the slider post; a main link provided with an elevating connection portion rotatably connected to the elevating member at one end; and a main link rotatably connected to the slider post at one end. A sub-link provided with a support post connection portion that connects to the main link and a main link connection portion that is rotatably connected to the intermediate portion of the main link at the other end, and a connection connection portion provided at the other end of the main link. It is equipped with a pile driver connection part that can be connected to adjust the mounting angle of the pile driver. It is characterized by linear movement in the outer peripheral area of the drawn virtual surface.

According to this configuration, the main link has a slider post, an elevating member slidably fitted to the slider post, a main link provided with an elevating connection portion rotatably connected to the elevating member at one end, and the main link at one end. The Scott-Russell mechanism is composed of sub-links having a strut connecting portion rotatably connected to the slider strut and having a main link connecting portion rotatably connected to the intermediate portion of the main link at the other end. As a result, since the position determination device moves linearly, the pile driver can be positioned more easily and accurately than other devices that determine the plane position by rotating the boom.

Preferably, the distance from the lift joint to the main link joint, the distance from the connection joint to the main link joint, and the distance from the strut joint to the main link joint are equal.

According to this configuration, since the distance from the lifting connection portion to the main link connection portion, the distance from the connection connection portion to the main link connection portion, and the distance from the strut connection portion to the main link connection portion are equal, the pile driver can , going straight at right angles to the direction in which the slider strut extends. This makes positioning the pile driver easier.

Preferably, a main link moving means is provided for raising and lowering the main link along the slider post by generating a driving force.

According to this configuration, since the main link moving means is provided for moving the main link up and down along the slider post by generating the driving force, the pile driver can be powered by the main link moving means without human power. Can move in a straight line.

Preferably, the main link movement means comprises a strut cylinder disposed along the slider strut and having one end connected to the lower end of said slider strut and the other end connected to the lifting member.

According to this configuration, by driving the column cylinder, the position of the pile driver can be easily and accurately moved to the target point.

Preferably, the pile driver connection portion includes a main link connecting member rotatably connected to the main link about a first axis, and a main link rotatably about a second axis extending perpendicularly to the first axis. It has a leader connecting member that couples with the connecting member.

According to this configuration, the pile driver connection portion includes a main link connection member that is rotatably connected to the main link about the first axis, and a second axis that is rotatable about the second axis that extends perpendicularly to the first axis. Since it has a leader connection member that connects with the main link connection member, by rotating the pile driver connection part around the first axis and the second axis, the driving direction of the pile driver is crossed in all directions Adjustable.

Preferably, the rotating body is arranged above a traveling portion for causing the vehicle to travel.

According to this configuration, since the rotating body is arranged above the traveling portion for causing the vehicle to travel, the position determination device can be easily moved by causing the traveling portion to travel.

FIG. 3 is a side view illustrating a state in which the pile driver is attached to a position determining device attached to a vehicle; (a) and (b) are side views explaining a state in which the Scott Russell mechanism device operates. It is a side view of a raising/lowering member. It is a top view explaining the fitting state of a raising/lowering member and a support|pillar unit. FIG. 4 is a perspective view of a main link; It is a perspective view of a secondary link. It is a side sectional view of a pile driver connection part. FIG. 4 is a perspective view of a main link connecting member; FIG. 4 is a cross-sectional view of the reader; FIG. 10 is a side view of the pile driver connection and leader;

Embodiments of the present invention will be described with reference to FIGS. 1-10.

As shown in FIG. 1, the positioning device 1 fixed to the vehicle 100 fixes the pile driver 200 so as to be slidable along the direction in which the leader 53 extends.

The pile driver 200 linearly moves to the driving point by operating the Scott Russell mechanism device 150 . The vehicle 100 has a traveling section 101 having a crawler 120 and a rotating body 102 provided above the traveling section 101 and rotatable about a turning axis V1. The rotating body 102 is provided with a driver's seat 103 for driving the vehicle 100, and is provided with a vehicle connecting portion 110 for connecting the slider support 10 so as to protrude in the horizontal direction.

The pivot axis V1 extends in a direction perpendicular to the ground 300. As shown in FIG. Therefore, by operating the operation panel 104 and applying a turning force, the rotating body 102 turns parallel to the ground 300 .

The slider post 10 is fixed to the vehicle coupling portion 110 in a state that it can be rotated around the rotation axis V2 by hydraulic pressure. Axis of rotation V2 extends in a direction perpendicular to ground 300, like pivot axis V1. Therefore, the slider post 10 rotates parallel to the ground 300 . Further, depending on the situation, a structure may be adopted in which the fixed state is released by operating a lever and then manually rotated around the rotation axis V2.

The slider post 10 has a post unit 11 , an upper base 12 connected to the lower end of the post unit 11 , and a lower base 13 connected to the lower end of the upper base 12 . The pillar unit 11 extends upward along an axis parallel to the rotation axis V2 over a range in which the elevating member 20 can be elevated.

The upper base portion 12 has a pair of side plates 12b projecting from the side surface 11b of the lower end portion of the column unit 11 in a direction away from the pivot V1 (see FIGS. 2(a) and 2(b)). A housing portion (not shown) is defined by the pair of side plates 12b. One end of the secondary link 40 and the lower end of the strut cylinder 60 are accommodated in the accommodation portion. The upper base portion 12 is provided with a cylinder connecting portion 87 that connects with the lower end portion of the column cylinder 60 and a column connecting portion 86 that rotatably fixes one end of the sub-link 40 . A hole 87 a is provided at the position of the cylinder connecting portion 87 , and a hole 86 a is provided at the position of the support connecting portion 86 .

A flat plate-like lower base 13 is attached below the upper base 12 . The upper base portion 12 and the lower base portion 13 are provided with one connection point 90, 91, respectively. The connecting points 90 , 91 are for connecting the connecting unit 15 to the upper base 12 and the lower base 13 . The support unit 11 is fixed to the connection unit 15 via the upper base 12 and the lower base 13 by being connected at two points.

The connecting unit 15 is a U-shaped member provided with a concave portion 15a. With the vehicle connecting portion 110 inserted into the concave portion 15a, the rotating body 102 and the slider strut 10 are fixed via the connecting unit 15 by operating the lever.

As shown in FIGS. 2(a) and 2(b), the Scott Russell mechanism device 150 has an elevating member 20, a main link 30 and a sub link 40. As shown in FIGS. The Scott Russell mechanism device 150 applies the Scott Russell mechanism to convert vertical movement into horizontal linear movement. Specifically, as the elevating member 20 descends along the column unit 11 , the connecting portion 85 moves horizontally and linearly in a direction away from the column unit 11 .

As shown in FIG. 4, the column unit 11 has two U-shaped slide rails 11a arranged back-to-back with a gap 17a provided, and the opposing abdominal plates 16 are connected to each other by a connecting plate 17. Structure.

As shown in FIGS. 3 and 4, the elevating member 20 has a fitting unit 21 slidably fitted to the strut unit 11 and a connecting unit 22 connecting the main link 30 and the strut cylinder 60 . The fitting unit 21 is provided with fitting openings 21a at both ends. The fitting opening 21 a is a space defined by the flat plate 25 and L-shaped members 25 a extending vertically from each end of the flat plate 25 toward the column unit 11 . The flange portion 18 of the slide rail 11a is slidably inserted into the fitting opening portion 21a. As a result, the lifting member 20 moves up and down along the slide rails 11a.

A protrusion 26 is provided in the central portion of the flat plate 25 . The projecting portion 26 is arranged in the gap 17a, and the displacement in the direction of the flange portions 18, 18 is restrained by the abdominal plates 16, 16. As shown in FIG.

With the above-described configuration, the lifting member 20 can be slidably moved up and down without shaking in the direction in which the column unit 11 extends.

The connection unit 22 has a pair of connection plates 23,23. The connection plate 23 extends perpendicularly from the flat plate 25 in the direction away from the column unit 11 and has a hole 81 a at the position of the elevation connection portion 81 that connects with the main link 30 . A hole 82 a is provided at the position of the cylinder connecting portion 82 connected to one end of the adjustment cylinder 62 , and a hole 83 a is provided at the position of the cylinder connecting portion 83 connected to the strut cylinder 60 .

A recess 27 is provided by a pair of connecting plates 23 , 23 , and the connecting plates 23 , 23 are connected via a stiffener 28 in addition to the flat plate 25 . As a result, the interval between the recesses 27 can be secured, and the strength of the connecting plate 23 can be increased. Further, the connecting plate 23 is provided with holes 28a and 29a at a position corresponding to the reinforcing member 28 and at another position for the purpose of weight reduction.

As shown in FIG. 5, the main link 30 is a straight box-shaped member. A hole 81b is provided at the position of the elevating connecting portion 81 provided at one end, a hole 85a is provided at the position of the connecting connecting portion 85 provided at the other end, and a hole 84a is provided at the position of the main link connecting portion 84 provided at the intermediate portion. is provided. The holes 81b, 84a, and 85a are arranged in a straight line so that the distance L1 from the center of the hole 81b to the center of the hole 84a is equal to the distance L2 from the center of the hole 85a to the center of the hole 84a. is set to

The main link 30 is rotatably connected to the lifting member 20 by a lifting connecting portion 81 . Specifically, it is a structure in which a connecting pin (not shown) is inserted through a hole 81b provided in the main link 30 and holes 81a, 81a provided in the pair of connecting plates 23, 23. As shown in FIG. This allows the main link 30 to rotate around the central axis of the connecting pin.

As shown in FIG. 6, the sub link 40 has a recess 40a defined by a pair of side plates 41, 41. As shown in FIG. The recessed portion 40 a is a space for accommodating the main link 30 when the pile driver connection portion 50 moves in a direction approaching the slider support 10 . A pair of side plates 41 , 41 are connected via a reinforcing member 42 . As a result, the space between the recesses 40a can be secured, and the strength of the side plate 41 can be increased.

A hole 86b is provided at the position of the post connecting portion 86 provided at one end of the sub-link 40, and a hole 84b is provided at the position of the main link connecting portion 84 provided at the other end. A distance L3 from the center of the hole 86b to the center of the hole 84b is set equal to the distances L1 and L2 described above.

The sub-link 40 is rotatably connected to the upper base 12 by a post connecting portion 86 and is rotatably connected to the main link 30 by a main link connecting portion 84 . Since the connecting structure of the support column connecting portion 86 and the main link connecting portion 84 is substantially the same as the connecting structure of the elevating connecting portion 81, the description thereof will be omitted.

The strut cylinder 60 is a hydraulic cylinder in which a cylinder rod 60a moves along the cylinder body by hydraulic pressure, and the respective ends are connected by cylinder joints 83 and 87. As shown in FIG. Since the connecting structure of the connecting portions 83 and 87 is substantially the same as that of the elevating connecting portion 81, the description thereof will be omitted.

As shown in FIG. 7 , the pile driver connection section 50 has a main link connection member 51 , a leader connection member 52 and a leader 53 . The main link connection member 51 is connected to the main link 30 at a connection connection portion 85 so as to be rotatable about the first axis H1 (see FIG. 8), and is connected at a connection connection portion 89 to the leader connection member 52 and the second axis H2. It is connected so as to be rotatable around. The leader 53 is slidably fixed to the leader connection member 52 and slidably fixes the pile driver 200 .

As shown in FIG. 8 , the main link connecting member 51 has a pair of side plates 56 , 56 extending perpendicularly from one surface of a flat plate 55 toward the main link 30 . A pair of side plates 56, 56 define a recess 55c into which the ends of main link 30 and adjustment cylinder 62 are inserted.

The side plate 56 is provided with a hole 85 b at the position of the connecting portion 85 . A hole 88 a is provided at the position of the cylinder connecting portion 88 .

The other end of the main link 30 is rotatably connected by a connection joint portion 85 . Specifically, it is a structure in which a connecting pin 85c is inserted through a hole 85a provided in the main link 30 and holes 85b, 85b provided in the pair of side plates 56, 56. As shown in FIG. As a result, the other end of the main link 30 can rotate around the central axis (first axis H1) of the connecting pin 85c.

The adjustment cylinder 62 (see FIG. 2) is a hydraulic cylinder in which a cylinder rod 62a is moved along the cylinder body by hydraulic pressure, and the respective ends are connected by cylinder connections 82,88.

The main link connecting member 51 has an annular projecting member 55 a projecting from the other surface of the flat plate 55 . The protruding member 55a has an annular ring 156 connected to the flat plate 55 and a flange 157 bent at right angles from the end of the annular ring 156 and extending horizontally toward the center of the annular ring 156 . Thereby, the projecting member 55a defines a recess 55d. An arcuate slit 56a concentric with the projecting member 55a is provided at the upper end of the flat plate 55. As shown in FIG.

The reader connecting member 52 is provided with a projecting member 55b that is rotatably inserted into the recess 55d. A connecting portion 89 is formed by the projecting members 55a and 55b and the recessed portion 55d. A guide 56b is provided to pass through the slit 56a. The guide 56 b guides the rotation of the leader connecting member 52 and maintains the distance between the leader connecting member 52 and the main link connecting member 51 . As a result, the reader connecting member 52 can be smoothly rotated around the central axis (second axis H2) of the projecting member.

As shown in FIG. 9, the leader 53 has a structure in which two vertically extending H-shaped members 53a are arranged in parallel and intermediate portions are connected by a connecting member 53b. The pair of protrusions 53 c , 53 c are inserted into the pair of recesses 53 d , 53 d provided in the reader connection member 52 . This allows the leader 53 to slide vertically along the plane defined by the leader connecting member 52 .

The pile driver 200 is fixed so as to be slidable along the direction in which the leader 53 extends. Since the structure for sliding is substantially the same as the slide structure of the reader 53 described above, the description is omitted.

As shown in FIG. 10, the adjustment cylinder 63 is connected to a connecting point 91 provided on the main link connecting member 51 and a connecting portion 92 provided on the leader connecting member 52 . By moving the cylinder rod 63a, the leader connecting member 52 rotates around the second axis H2 (see FIG. 7).

The adjustment cylinder 64 is connected to a connecting portion 93 provided on the leader connecting member 52 and a connecting portion 94 provided on the leader 53 . By moving the cylinder rod 64a, the leader 53 slides vertically along the leader connecting member 52. As shown in FIG.

A procedure for positioning the pile driver 200 and adjusting the mounting angle will be described.

The vehicle 100 is operated and placed in the vicinity of the piling location. When the vehicle 100 travels, the main link 30 and the sub link 40 are stored along the slider strut 10 in a folded state. At this time, the cylinder rod 60a of the column cylinder 60 is positioned at the upper end of the slider column 10 in an extended state.

Rotating body 102 rotates around pivot V1 to align pile driver 200 with the target direction and lower cylinder rod 60a (see FIGS. 1 and 2). As it descends, the pile driver 200 moves straight toward the target direction at right angles to the turning axis V1. This is because the main link 30 and the sub-link 40 form an equidistant Scott Russell mechanism. Thus, the positioning device 1 of this embodiment facilitates the positioning of the plane position of the pile driver 200 compared to the conventional device.

Check the direction of the pile driver 200 in the direction of the first axis H1 (see FIG. 8) and the second axis H2 (see FIG. 7). , a cylinder rod 63a (see FIG. 10) along the length of the respective adjustment cylinder 62,63.

By moving the cylinder rod 62a, the pile driver connection portion 50 rotates around the first axis H1. Further, by moving the cylinder rod 63a, the leader connection member 52 of the pile driver connection portion 50 rotates around the second axis H2 perpendicular to the first axis H1. That is, it becomes adjustable in all directions. As a result, piles can be driven vertically even on a construction site on a slope.

After that, the cylinder rod 64 a of the lifting cylinder 64 is moved to lower the leader 53 and place the lower end on the ground 300 . As a result, the pile driver 200 is firmly supported by the leading end portion of the leader 53 and the running portion 101, and vibration during pile driving can be suppressed.

After the completion of placing, the cylinder rod 64a of the lifting cylinder 64 is moved to raise the leader 53, the cylinder rod 60a is raised to fold the main link 30 and the sub-link 40, and accommodate them along the slider strut 10. .

This embodiment is an example, and it is needless to say that modifications can be made without departing from the technical idea of the present invention. For example, a pile driving machine was exemplified as a pile driving device, but even if it is a pile extraction machine, a boring machine for digging holes for piles, or a press-fitting machine for rotating and press-fitting a screw pile, a cylindrical A press-fitting machine for press-fitting piles may be used. Further, as the boring machine, a down-the-hole hammer that is applied to hard ground such as bedrock, or an earth auger that is applied to normal ground may be used.

INDUSTRIAL APPLICABILITY The piling position determination device according to the present invention has great industrial applicability because it can perform piling even in narrow, sloping, and uneven construction sites.

1: Positioning device 10: Slider strut 20: Elevating member 30: Main link 40: Sub link 50: Pile driver connection part 81: Elevation connection part 84: Main link connection part 85: Connection connection part 86: Post connection part 60 : Strut Cylinder 100: Vehicle 101: Traveling Part 102: Rotating Body V1: Turning Axis H1: First Axis H2: Second Axis

Claims (6)

A position determination device for identifying the position and direction of a pile driver,
a rotating body that rotates around a turning axis;
a slider post extending upward from an edge of the rotating body;
a lifting member slidably fitted to the slider support;
a main link provided with an elevating connection portion rotatably connected to the elevating member at one end;
a sub-link having, at one end thereof, a strut connecting portion rotatably connected to the slider strut, and having at the other end thereof a main link connecting portion rotatably connected to an intermediate portion of the main link;
a pile driver connection part that is connected to a connection connection part provided at the other end of the main link and that can adjust the mounting angle of the pile driver,
A position characterized in that when the elevating member is moved up and down, the pile driver connection portion linearly moves in an outer peripheral area of a virtual plane drawn by the trajectory of the slider support when the rotating body is rotated. decision device. A distance from the elevating connection portion to the main link connection portion, a distance from the connection connection portion to the main link connection portion, and a distance from the strut connection portion to the main link connection portion are equal. Item 2. The position determining device according to item 1. 3. The positioning apparatus according to claim 1, further comprising main link moving means for moving the main link up and down along the slider support by generating a driving force. 4. The main link moving means has a column cylinder disposed along the slider column and having one end connected to the lower end of the slider column and the other end connected to the elevating member. A positioning device as described. The pile driver connecting portion includes a main link connecting member rotatably connected to the main link about a first axis, and a main link connecting member rotatably connected about a second axis extending perpendicularly to the first axis. The positioning device according to any one of claims 1 to 4, further comprising: a reader connection member for connecting the reader to the position determining device.

The position determination device according to any one of claims 1 to 5, wherein the rotating body is arranged above a traveling portion for causing the vehicle to travel.

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