KR102085488B1 - A Gripper for construct flume tube - Google Patents

Abstract

The present invention relates to a gripper for flume pipe construction, which is attached to an excavator arm to allow an excavator driver alone without a work assistant to grip and lift a flume pipe to install the flume pipe at a desired position. The gripper for flume pipe construction comprises: a body (100) having a link (110) formed on an upper portion thereof and coupled to a coupling (2) of a boom (1), a rotary shaft (130) formed on a lower portion thereof and rotated by a hydraulic motor (120), and a horizontal bar (140) attached to the rotary shaft (130); a pair of straight inner arms (200) wherein the upper ends thereof are coupled to the left and right sides of the horizontal bar (140) to adjust the gap, and inner sticking pads (210) are attached to the lower ends thereof and tightly attached to the inner surface of a flume pipe (3); and a pair of Z-shaped outer arms (300) wherein middle portions thereof are pin-coupled to upper sides of the inner arms (200), outer sticking pads (310) are attached to the lower ends thereof and tightly attached to the outer surface of the flume pipe (3), and the upper ends thereof are connected to the upper ends of the inner arms (200) by a hydraulic cylinder (320) to allow the inner and outer sticking pads (210, 310) of the lower end to be tightly attached to or separated from the inner and outer surfaces of the flume pipe (3) by expansion and contraction of the hydraulic cylinder (320).

Description

Gripper for construct flume tube

The present invention relates to a gripper for the construction of the plumbing pipe for lifting and installing the plume pipe in a desired position, it is attached to the excavator arm so that the excavator driver can be picked up by the excavator driver alone without a work assistant and installed in the desired position.

In general, since the plume pipe for concrete used in the installation of agricultural waterways or sewers is bulky and heavy, there are many cases in which a towing rope is wound around the outer periphery of the pipe for lifting, discharging, and construction, and lifted by an excavator, etc. This is a high risk of safety accidents of the worker, there was also a problem that occurs when the pipe is broken by the sliding of the rope and the outer surface of the pipe.

In the related art related to the present invention, the 'flute pipe movement clamp' of Patent Document 1 is intended to solve the above problems, and is provided with a turnbuckle at the center of the body to adjust the width of the flute tube on both left and right sides of the body. The grippers for picking up the left and right side walls were configured to be pulled or opened by pulling the bite fixing rope and the dismantling rope, respectively. It had to be put into the surrounding workshop, and there was a high risk of safety accidents as the assistant lost the balance of selectively hooking the hook and returning the plume pipe in the desired direction.

Patent Document 2 'rotating traction forceps' is also used to be mounted on an excavator or a crane, but the structure of the link portion is developed and folded by the traction wire, but this also uses a forceps attachment to pull or release the traction wire In addition, there was a limitation that must be made, of course, because the direction of the plum tube can not be adjusted, a separate auxiliary worker had to be put into the field.

The water channel pipe conveying device of Patent Document 3 has a simple structure that can lift a water pipe by using a pair of left and right clamps, which also requires an auxiliary work for clamping a clamp and an auxiliary work for turning a work. There was a downside to this being possible.

'Plume pipe installation exclusive equipment' of Patent Document 4 was to be carried out by the assistant worker because the tongs were to bite or release the plume tube by the manual adjustable adjustment lever. There was a problem remaining.

The 'suspension clamp in concrete' of Patent Document 5 is configured to lift and lift the inner surface with the eccentric cam without biting the outside of the plume tube, which may damage the inner surface of the plume tube, and the specification of the plume tube varies. There was a problem that it is not compatible with the overall 믄, there was a disadvantage that the additional cost to increase the labor cost and safety accidents to be raised by a separate auxiliary worker to rotate the lifted plume tube in the desired direction.

Korean Patent Registration No. 10-0342133 (2002.06.14.) Korea Patent Registration No. 10-1221846 (2013.01.08.) Korea Patent Publication No. 10-2013-0078450 (2013.07.10.) Korea Registration Room No. 20-0234532 (2001.06.05.) Japanese Patent No. 6545049 (2019.06.28.)

The present invention has been made to solve the above problems, an object of the present invention is to provide a new type of gripper pipe transport gripper that can be installed in a desired position by picking up the flute pipe by an excavator driver without a separate work assistant.

In order to achieve the above object, the present invention is a link coupled to the coupling of the excavator arm is formed in the upper portion, the lower portion is formed with a rotating shaft to rotate by a hydraulic motor, the rotating shaft is attached to the horizontal bar body;

A pair of inner arms having upper and lower ends connected to the left and right sides of the horizontal bar, the inner contact pads being attached to the inner surface of the plum tube;

A middle portion is pin-coupled to the upper side of the inner arm, and an outer contact pad attached to the outer surface of the plum tube is attached to the lower end, and an upper end portion thereof is connected to the upper end of the inner arm and the hydraulic cylinder to expand and contract the lower end of the hydraulic cylinder. Provides a gripper for the construction of the flute tube, the inner and outer contact pads of the pair includes a pair of outer arms that are in close contact or spaced apart from the inner and outer sides of the plume tube.

According to the present invention, the left and right pairs of inner and outer arms are held together by the hydraulic cylinder to simultaneously bite or open to bite the side of the plume tube, and the gripper body itself is rotated by the hydraulic motor. And since the direction of the plume tube can be freely turned during construction, there is a useful effect that the construction of the plume tube can be quickly and accurately without a separate assistant.

1 is a perspective view of a gripper for transporting a plumb tube according to an embodiment of the present invention;
FIG. 2 is a front view of the gripper pipe transport gripper shown in FIG. 1;
3 is a side view of the gripper for transporting the plum tube shown in FIG. 1;
4 is a state in which the width of the gripper is widely adjusted in FIG. 2;
5 is a perspective view of a state in which the plum tube is lifted up,
6 is a perspective view of a state in which the plum tube is installed and the gripper is released;
7 is a front view of a gripper showing another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

1 to 6 there is shown a gripper 10 for conveying the plumb tube according to an embodiment of the present invention, which has a link 110 coupled to the coupling 2 of the excavator arm 1 at an upper portion thereof. A rotating shaft 130 that is rotated by a hydraulic motor 120 is formed at a lower portion thereof, and the rotating shaft 130 includes a body 100 having a horizontal bar 140 attached thereto;

The left and right sides of the horizontal bar 140 is coupled to the upper end is adjustable so that the pair of straight inner arm 200 is attached to the inner close contact pad 210 is in close contact with the inner surface of the plum tube (3) )and;

The upper portion of the inner arm 200 is pinned to the middle portion, the lower end is attached to the outer contact pad 310 in close contact with the outer surface of the plum tube 3, the upper end of the upper end and the hydraulic cylinder of the inner arm 200 A pair of Z-shaped outer arms which are connected to (320) so that the inner and outer contact pads 210 and 310 of the lower end are in close contact with or spaced apart from the inner and outer surfaces of the plum tube 3 by the elastic action of the hydraulic cylinder 320. It consists of 300.

In the present embodiment, the horizontal bar 140 is formed with a plurality of gap adjusting holes 150 at regular left and right intervals, and a pin holder 202 is formed on the upper end of the inner arm 200 to form a connection pin 204. As shown in Figure 4 by varying the coupling position of the left and right to adjust the gap between the inner arm 200 is to be used to adjust according to the width standard of the plum tube.

In the present embodiment, when the hydraulic motor 120 is driven in a state in which the body 100 is coupled to the coupling 2 of the excavator arm 1, the rotating shaft 130 below the body 100 rotates. The horizontal bar 140 attached to the rotating shaft 130 is rotated together so that the gripper 10 can be freely rotated 360 degrees. In the meantime, the auxiliary worker is put into the work site to change the direction of the plum tube. Solving the problem that had to be able to be placed in the correct direction in the construction position, as well as the up and down of the plum tube.

In the present embodiment, the mechanism for rotating the rotating shaft 130 of the body 100 is a gear (122) coupled to the axis of the hydraulic motor 120 is coupled to the rotating shaft 130, as shown briefly in the figure ( 132 and the external rotation of the hydraulic shaft 120 by the forward and reverse rotation shaft 130 is configured to be forward and backward rotation.

In the embodiment shown in the figure, the gear coupling between the hydraulic motor 120 and the rotating shaft 130 is connected in a spur gear method, but the present invention is not limited thereto, and of course, may be connected in a worm gear method.

In this embodiment, the horizontal bar 140 is a pair is arranged in parallel to the front and rear, made of a rigid structure to withstand the weight of the lower, inner and outer arms (200,300) and the plume tube being pulled by it, Afterwards, a sufficient distance is maintained between the pair of horizontal bars 140 to move left and right by the expansion and contraction action of the hydraulic cylinder 320 in a state where the upper end of the outer arm 300 is positioned.

In the present embodiment, the pin holder 202 of the upper end of the inner arm 200 is hinged to the horizontal bar 140 by the connecting pin 204, and the middle of the outer arm 300 and the inner arm 200 is the connecting pin. 314 is coupled to each other, and the hydraulic cylinder 320 is connected between the upper end of the outer arm 300 and the inner arm 200 by connecting pins 316 and 318, thereby expanding and contracting the hydraulic cylinder 320. Not only the outer arm 300 is opened and retracted, but the inner arm 200 together with the outer arm 300 is also opened and retracted to some extent at the same time to pick up the plum tube 3, so that the scratches on the plum tube 3 Etc. does not occur.

In the present embodiment, the inner arm 200 has a generally straight shape, and the outer arm 300 has a Z-shape because the lower end of the outer arm 300 has a relatively large rotation angle and the inner arm 200. Because the lower end of the should be rotated in the inside of the plume tube (3) is relatively small rotational angle, the outer arm 300 has a stepped portion formed in the upper side of the side of the plume tube (3) when picking up or placing the plume tube This is to prevent interference with the outer arm 300.

In addition, in this embodiment, the lower end of the outer arm 300 is in close contact with the contact pad 310 is hinged with the connecting pin 312 so as to rotate completely when contacting the outer surface of the plum tube (3) It is to make it possible.

7 shows another embodiment of the present invention, which is basically the same as the above-described embodiment, except that the ball joint 132 is attached to the lower end of the rotation shaft 130 and is horizontal to the ball joint 132. The bar 140 is pivotally coupled so that the horizontal bar 140 is always horizontal, i.e., the horizontal bar 140 and the horizontal bar 140 at the bottom of the arm 1, irrespective of the angle of the excavator arm 1. The lower inner arm 200 and the outer arm 300 can be left and right balanced by their weight, so that when one approaches the bite tube 3, the left and right arms are not contacted first. The inner and outer arms 200 and 300 are in contact with the left and right sides of the plume tube 3 at the same time to prevent damage to the plume tube.

On the other hand, in the present invention, the horizontal bar 140 is not limited to the gap can be adjusted by adjusting the position of the connecting pin, it is adjusted by the separate hydraulic cylinder between the left and right inner arm 200. In this case, it is preferable to additionally install a separate position fixing means (fixing pin) for stably maintaining a state in which the spacing is adjusted by the expansion and contraction of the hydraulic cylinder.

The gripper for constructing a plumb pipe of the present invention configured as described above is used to be attached to the coupling 2 of the excavator arm 1 as shown in FIGS. 5 and 6, and 3) pick up and lift it to be placed in the installation place immediately, the auxiliary worker to adjust the installation direction of the plume pipe (3) without the need to drive the hydraulic motor 120 to change the direction freely When the hydraulic cylinder 320 is contracted and then placed in the installation direction, the grippers 10 are separated from the plum tube 3 while the lower ends of the inner and outer arms 200 and 300 are opened.

Therefore, by using the gripper of the present invention, the lifting and lowering of the plum tube in the vehicle and the installation in the field can be performed safely and quickly.

1: boom
2: coupling
3: plume tube
10: gripper
100: body
110: link
120: hydraulic motor
130: rotation axis
140: horizontal bar
150: spacing adjustment hole
200: inner arm
202: Pin Holder
204: connecting pin
210: inner contact pad
300: outer arm
310: outside contact pad
312,314,316,318: connecting pin
320: hydraulic cylinder

Claims (4)

A link 110 coupled to the coupling 2 of the excavator boom 1 is formed at an upper portion thereof, and a rotating shaft 130 rotated by the hydraulic motor 120 is formed at the lower portion thereof. A body 100 to which the bar 140 is attached; The left and right sides of the horizontal bar 140 is coupled to the upper end is adjustable so that the pair of straight inner arm 200 is attached to the inner close contact pad 210 is in close contact with the inner surface of the plum tube (3) )and; The upper portion of the inner arm 200 is pinned to the middle portion, the lower end is attached to the outer contact pad 310 in close contact with the outer surface of the plum tube 3, the upper end of the upper end and the hydraulic cylinder of the inner arm 200 A pair of Z-shaped outer arms which are connected to (320) so that the inner and outer contact pads 210 and 310 of the lower end are in close contact with or spaced apart from the inner and outer surfaces of the plum tube 3 by the elastic action of the hydraulic cylinder 320. Plumper pipe construction gripper comprising 300,
The horizontal bar 140 has a gap adjusting hole 150 is formed at a predetermined interval, the pin holder 202 is formed on the upper end of the inner arm 200 by changing the coupling position of the connecting pin 204 The gap between the left and right inner arms 200 can be adjusted,
The horizontal bar 140 is one pair is arranged in parallel to the front and rear, by the expansion and contraction of the hydraulic cylinder 300 in the state where the upper end of the outer arm 300 is located between the front and rear pair of horizontal bar 140. It moves to the left and right and maintains no gap.
The inner arm 200 is a pin holder 202 of the upper end is hinged to the horizontal bar 140 by a connecting pin 204, the middle portion of the outer arm 300 and the inner arm 200 connecting pins 314 It is coupled to), and the hydraulic cylinder 320 is connected between the upper end of the outer arm 300 and the inner arm 200 by the connecting pins (316, 318) to expand and contract the outer arm by the hydraulic cylinder (320) Plumper tube construction gripper, characterized in that to pick up the plume tube 30 while the inner arm 200 is also opened and contracted at the same time with (300).
delete The method according to claim 1,
A ball joint 132 is attached to the lower end of the rotating shaft 130 and the horizontal bar 140 is pivotally coupled to the ball joint 132 so that the horizontal bar 140 is independent of the angle of the excavator arm 1. Plumper pipe construction gripper, characterized in that the inner arm 200 and the outer arm 300 of the lower horizontal bar 140 can maintain a balanced state left and right by its own weight.
The method according to claim 1,
The outer contact pad 310 is gripper for construction plume pipe, characterized in that the hinge hinged to the lower end of the outer arm 300 by a connecting pin (312).

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