JPS59122635A - Chucking device for stone masonry work - Google Patents

Abstract

PURPOSE:To safely and efficiently perform a stone masonry work by a method in which a jack is provided between paired finger parts pivotally attached to a base plate attached through a movable means to the arm of an excavator and an object to be grasped is chucked by turning the piston rod. CONSTITUTION:A chucker 6 to grasp concrete blocks B is attached through a three-phase AC turning mechanism 8 to the tip of an expandible jack 7 attached to the arm 3 of a shovel excavator 1. The first rotator 10 is turned around the axial line X by a pitching motor 11, the second rotator is turned around the axial line Y by a rolling motor 14, and the chucker 6 is turned around the axial line Z by a horizontal turning motor 16. By the chucker 6 consisting of a base plate 17 and paired finger parts 18, blocks B can be exactly grasped at three points of the parts 18 and at the tip of the piston rod 20 of the jack 19 provided between the parts 18.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chucking device for masonry work in which stone materials, particularly concrete blocks, are stacked to construct earth retaining walls such as retaining walls.

In conventional masonry work, a party of 5 to 6 people unloaded concrete blocks transported by trucks, etc., moved them, and laid the stones by hand, so moving concrete blocks was difficult. Not only did it take a lot of effort to transport it, and the workers were forced to do hard labor all the time, but it was also dangerous because the footing was poor and they had to handle heavy objects.

In order to solve this problem, there is a need to mechanize and automate masonry work to free workers from heavy and dangerous work.

The present invention has been made in view of the above points, and its purpose is to securely and strongly grip irregularly shaped heavy objects such as concrete blocks, and to perform masonry work safely and efficiently. Provides a chunking device.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is a shovel-type excavator main body,
The upper rotating body 1b is designed to rotate relative to the lower traveling body 1a. A boom 2 is installed in front of the excavator main body 1 so that it can rotate in the vertical direction, and an arm 3 is installed at the tip of the boot 2 so that it can also rotate in the vertical direction. It is pivoted to. Further, a bankhoe 4 is pivotally attached to the tip of the arm 3, and can be swung vertically by a hydraulic cylinder 5.

, 6 is for gripping concrete block B.
The chucking is attached to the tip of a telescopic jack 7 centered on the arm 3 via a trigonal orthogonal axes rotation mechanism 8 as shown in FIG.

That is, in FIG. 2, a first rotating body 1o is connected to the tip of the telescopic jack 7 via a connecting pin 9, and a binching motor 1 fixed to the tip of the telescopic jack 7 is connected to the first rotating body 1o via a connecting pin 9.
1 to rotate around the axis X.

Note that the first rotating body 10 is rotationally driven by a motor 11 via an appropriate reduction gear. The speed reducer is a self-locking speed reducer such as an ohm speed reducer, and is subjected to a rotational reaction force.

Furthermore, a second rotating body 10 is connected to the first rotating body 10 via a connecting pin 12.
A rotating body 13 is pivotally mounted and rotated around an axis Y by a rolling motor 14. Furthermore,
A rotating shaft 15 of the chucking 6 is pivotally attached to the 152 rotating body 13, and is rotated about an axis Z by a horizontal rotation motor 16. The above axis X,
Y and Z are orthogonal to each other. Therefore, the chunking 6 can be oriented in any direction by operating each of the motors 11, 14, 16 appropriately and rotating each rotating body 10, 13 by a desired angle.

As is clear from FIG. 3, the chucking 6 mainly consists of a substrate 17 and a pair of left and right fins 77) pivotally connected to the substrate 17.
1' consists of one member 18.18. A jack 19 is disposed between the two fish blades 18, 18, and the tip of the piston rod 20 is connected to the finger via a spring link 21 made of a tension spring or the like with a relatively large spring constant. The finger member 18 is connected to one member 18, and as the rod 2o advances, the finger member 18 elastically rotates inward, that is, from the imaginary line state to the solid line state in FIG. There is. Incidentally, as shown in FIG. 4, instead of the spring link 21, a
The opening of the finger member 18 may be connected by a link 21', and a contact plate 20b may be attached to the tip of the rod 20 via a compression spring 20a.In other words, the chucking of the present invention Even if the shape and size of the object to be gripped changes somewhat, the two fins will remain
Any structure may be used as long as it can be gripped securely at three points at the tip.

As is clear from FIG. 4, the finger member 18
An insertion hole 18α is formed in the gripping portion, and the elastic piece 22 is inserted into the insertion hole 18α.

The elastic piece 22 also has an elongated hole 22a, into which a spring 23 is inserted, and the base of the spring 23 is fixed to the finger member 18. Therefore, when the fin presses the member 18 against the block B, the leaf spring 23
Since the elastic pressure piece 22 is strongly pressed against the surface of the bronze 28,
Even if the gripped surface of the flock B is tapered or irregularly shaped, it can be strongly contacted and gripped reliably.

In addition, since hard rubber 24 is attached to the front end surfaces of the elastic piece 23 and the rod 20, the contact surface with the 70 ink B is hard to slip and can be gripped more reliably.

Since the chunking device for masonry work of this embodiment is constructed as follows, first, the boom 2 and arm 3 of the excavator main body 1 are rotated as appropriate, and then the hydraulic circuit shown in FIG. 5 is switched. The valve 24 is operated to extend and retract the telescopic jack 7 of the chucking 6 to move the chunking 6 closer to the target concrete block B.

Next, the motor 11 is operated by the switching valve 25, and the f51
The rotating body 10 is rotated by an appropriate angle around the axis X, and the motor 14 is operated by the switching valve 26 to rotate the second rotating body 13 by an appropriate angle around the axis Y. By operating the motor 16 and rotating the chuck 6 by a desired angle about the axis Z, the chuck 6 is accurately positioned and in a direction where it can grip the base 1 of the block B. In addition, each of the above motors 1
1.14.16 may be activated sequentially or simultaneously.

Subsequently, as shown in FIG. 3, the switching valve 28 operates the gloss 19 to advance the piston rod 20. When the rod 20 advances, the finger member 18 is moved from the imaginary line state to the solid line state via the spring link 21, gripping both sides of the base of the block B, and the front end face of the mouth and the end 20 of the block B is moved. Abut against the top surface of B to securely grip 70-ink B on three sides.

After gripping the concrete block B with the chunking unit 6 as described in step 2, operate the boom 2 and arm 3 to hold it and move the main body 1 or move the upper revolving structure 11 as necessary. ) and are transported to the stacking position as shown in FIG.

When block B is moved to the desired stacking position, each motor 11, 14, 16 is operated appropriately again to block B.
Set in the correct masonry direction and perform the necessary backfilling to complete the masonry work.

In the above embodiment, a 7-hole and a chucking were attached to an excavator equipped with a backhoe, but the present invention is not limited to this. Any excavator may be used as long as it is equipped with the excavator.

Next, the effects of the present invention will be listed.

(1) Since the object to be grasped, such as a concrete block, is held in contact with three sides, there is no fear that the object to be grasped will rotate and slip off, allowing safe carrying and masonry work.

(2) Since one finger member operates in conjunction with the advance of the jack's piston rod, the gripping operation can be performed reliably and quickly, and even if the shape and size of the object to be gripped changes, the gripping operation can be performed reliably and reliably. can be gripped.

(3) Since the fins are provided with a pressing piece on the negative side, even if the portion to be gripped is tapered or irregularly shaped, it can be surely abutted and gripped.

[Brief explanation of the drawing]

Fig. f51 is an explanatory diagram showing the stone masonry working state using the stone h'i working device according to an embodiment of the present invention, Fig. 2 is a perspective view showing the rotating mechanism of the chucking with three orthogonal axes, and Fig. m3 is the chucking 4 is a diagram showing another embodiment of chucking, FIG. 5 is a sectional view of a main part of a finger member, and FIG. 6 is a hydraulic circuit diagram. 1... Shovel type excavator body, 1a
...Lower running body, 11)...Second part running body, 2...
Boom, 3... Arm, 4... Backhoe, 5...
・Hydraulic Schilling - 16...Chucking, 7...Telescopic jack, 8...Tri-orthogonal axis rotation mechanism, 9...Connection bottle, 10...First rotating body, 11...Pitching Motor, 12... Connection pin, 13... Second rotating body, 1
4... Rolling motor, 15... Rotating shaft, 16.
...Horizontal rotation motor, 17... Board, 18... Finger member, 18a... Insertion hole, 19... Jacket, 2o... Piston rod, 21a... Compression spring,
21b...Abutment plate, 21...Spring link, 21'
... Link, 22 ... Pressure piece, 22a ... Hole, 2
3... Spring, 24.15.2G, 2゛7.28.29
...Switching valve, 3o...Power unit, B...Concrete block,))...Base, X, Y,
7. ...Axis line. Patent applicant: Tokyu Construction Co., Ltd.

Claims (1)

[Scope of Claims] 1) A pair of finger members are pivotally connected to a base plate mounted on an arm of an excavator via appropriate movable means, a jack is disposed between the finger members, and a jack is mounted between the finger members. The tip of the piston rod and the finger section are connected by a link, and as the piston rod advances, the pair of finger sections A are rotated inward to grasp an object such as a concrete block. A chucking device for masonry work characterized by gripping on three sides. 2) A patent king device characterized in that a pressure piece that elastically protrudes inward is formed into a thin film on a portion of the finger that grips the shrine.