JPH07233638A - Vibrator operating device for compacting concrete - Google Patents

Abstract

PURPOSE:To improve the durability of the cable of a rod vibrator supported and inserted/removed by a manipulator vertically moved, rotated, and turned. CONSTITUTION:A vibrator inserting/removing device 9 is supported by tip arms 6, 8 of a manipulator 3 having the arms 6, 8 horizontally turned on a stanchion 4, and a cable 13 connected to a rod-like vibrator 10 inserted or removed by it is wound on a cable winding device 30 provided on the horizontal turn section of the manipulator 3. The cable 13 is connected to a power source via a rotary power connector using a slip ring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrator operating device mainly used for compacting concrete that has been driven in for building floors, beams, columns, walls, etc. at a construction site.

[0002]

2. Description of the Related Art Conventionally, a bar-shaped vibrator has been used for compacting concrete cast at a construction site. In this rod-shaped vibrator, a rod-shaped vibrator is fixed to the tip of a vibrator cylinder, and the vibrator is compacted by vibration by inserting the vibrator into the cast concrete to a required depth.

When this rod-shaped vibrator is used, it has hitherto been carried out manually by an operator to insert it into concrete, pull it, and move it to a desired position.

[0004] Such conventional compaction work requires a large amount of manpower since the rod-shaped vibrator to which a power air pipe and a power cable are connected is manually moved to a required position. There was a problem that the work of inserting and removing was done manually, and moreover, it was necessary to work at a site where the scaffolding was poor, resulting in heavy labor.

Furthermore, the insertion depth of the rod-shaped vibrator and the vibration time are often dependent on the intuition of the operator, and it takes skill to perform an appropriate compaction work, and the fluidity of the cast concrete However, there is a problem that it tends to be distracted, sufficient deaeration is not performed, and the strength of the concrete after solidification tends to vary.

In order to solve such a problem, the inventors of the present invention support a vibrator insertion / extraction device on a traveling vehicle body through a manipulator, and allow the traveling vehicle body and the manipulator to move the rod-shaped vibrator in the horizontal direction. We have developed a vibrator operation device that allows the insertion / extraction device to be operated by the vibrator insertion / extraction device.

[0007]

In the above-mentioned vibrator operating device, since the rod-shaped vibrator is moved and inserted / removed by the mechanical device, the cable including the power cord connected to the rod-shaped vibrator is swung by the manipulator. In each case, there is a problem that the bending force acts and the cable is easily damaged.

The present invention has been made to solve such a problem.

[0009]

The features of the present invention for solving the above-mentioned conventional problems and achieving the intended purpose are as follows.
A pillar is erected on the traveling vehicle body, and a vibrator insertion / extraction device is supported via a manipulator having an arm attached to the pillar so that the bar vibrator can be fixed to the tip of the vibrator cylinder by the vibrator insertion / extraction device. The rod-shaped vibrator is movably supported and is supported by the upper end of the column, and a cable winding device having a reel that winds the moving cable connected to the rod-shaped vibrator is provided at a portion that rotates with the arm. The vibrator operating device for concrete compaction, wherein the moving cable is connected to a power source through the rotary power source connector provided in.

[0010]

In the vibrator operating device of the present invention, the rod-shaped vibrator is mechanically inserted / extracted by the vibrator insertion / extraction device, and the movement of the vibrator is performed by traveling the traveling vehicle body and changing the supporting position of the vibrator insertion / extraction device by the manipulator. . The moving cable is wound around and reeled out from the reel of the cable winding device in accordance with the insertion / extraction operation of the rod-shaped vibrator. The winding of the moving cable by the reel is performed, for example, when slack is generated in the moving cable due to the winding force of the built-in spring, and the unwinding is performed by pulling out the moving cable against the winding force of the spring. In addition, since it is supplied from the fixed cable via the rotary power supply connector of the power supply to the moving cable, and the cable winding device is supported by the swivel portion on the column of the manipulator,
As the manipulator is rotated, the moving cable is not twisted but only the fixed cable is twisted.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a schematic structure of an example of a device according to the present invention. In FIG. 1, 1 is a running vehicle and 2 is a rubber wheel. A manipulator 3 is mounted on the vehicle body 1. This manipulator 3 is also commonly called a balancer, and it has columns 4, which are erected on the vehicle body 1.
A first joint fitting 5 supported on the upper end of the support column 4 so as to be horizontally rotatable, a first arm 6 rotatably supported up and down with respect to the first joint fitting 5, and a first arm 6 at the tip of the first arm 6. The second arm 8 is rotatably supported via the two-joint metal fitting 7, and the vibrator insertion / extraction device 9 is supported at the tip of the second arm 8. As this manipulator 3, a commercially available one can be used, and the vibrator insertion / extraction device 9
The operator can apply a slight external force without feeling the weight,
Alternatively, the pneumatic pressure control device provided in the manipulator 3 can be moved to a desired horizontal position and height by operating the controller.

The vibrator insertion / removal device 9 supported by the manipulator 3 vertically moves the rod-shaped vibrator 10 in the vertical direction. The rod-shaped vibrator 10 is a vibrator cylinder 11 made of a rod-shaped metal cylinder.
A rod-shaped electric vibrator 12 is fixed to the lower end of the motor 12, and a moving cable 13 for supplying power to the vibrator 12 is fixed.
Is introduced at the upper end of the vibrator cylinder 11.

As shown in FIG. 3, the vibrator insertion / extraction device 9 has a box-shaped support frame 20 whose upper and lower sides are open, and this is supported by the lower end of the second arm 8. A pair of vibrator feed rollers 21 and 21 are provided in the support frame 20.
Is rotatably supported. This feed roller 21,2
1, the outer periphery is formed with concave grooves 22 and 22 for holding a vibrator having a substantially semicircular cross section. Both concave grooves 22 and 22 are formed.
The rod-shaped vibrator 10 is vertically inserted and pulled out by inserting and rotating the rod-shaped vibrator 10.

Both feed rollers 21 and 21 are driven by an electric motor 23 fixed to the outside of the support frame 20, and are rotationally driven in opposite directions by gears 24 and 24. An insertion length detector 26, which is a rotary encoder, is attached to one of the feed roller shafts 25, and the insertion length of the vibrator 10 is measured by detecting the number of rotations thereof. Further, a height detector 27 composed of an ultrasonic distance meter is fixed downward to the support frame 20,
This allows the height of the support frame 20 to be measured.

A cable winding device 30 is provided at the back of the first joint fitting 5 of the manipulator 3, and is connected to the vibrator 12 described above so that the moving cable 13 can be wound. In this cable winding device, a cable winding reel 33 is supported between a pair of bearing arms 31 and 32 fixed to the second joint fitting 7.

The reel 33 is rotatably supported on the outside of a fixed shaft 34 which is fixed to one arm 31 by a screw and fixed in a cantilever manner. A pair of the fixed shaft 34 and the inner surface of the reel 33 are provided between the fixed shaft 34 and the reel 33. The spiral springs 35, 35 of
When the moving cable 13 sags, the spiral spring 3
The moving cable 13 is wound around the reel 33 by the winding force of the coils 5, 35, and when a tension larger than the force in the winding direction by the spiral springs 35, 35 is applied to the movable cable 13, the spiral spring 35, The reel 33 is rotated in the cable feeding direction while operating 35 in the winding direction.

On the surface of the reel 33 on the side of the bearing arm 32, a support shaft 36 is integrally projectingly provided at the center of rotation.
The support shaft 36 is rotatably supported by the bearing arm 32. A pair of slip rings 37, 37 for power supply connection are provided on the outer periphery of the support shaft 36, and the moving cable 13 wound on the reel 33 is connected to each of the slip rings 37, 37. Sliders 38, 38 for connecting the slip ring power supply are pressed against each other with a coil spring 38a, and a fixed cable 39 is connected to the sliders 38, 38.

This fixed cable is a cable winding device 30.
And the inverter 40 on the traveling vehicle body 1.
Electric power is supplied to the inverter 40 from a generator 42 driven by a prime mover 41.

As shown in FIG. 2, the vibrator operating device constructed as described above is arranged along the working line L so that the traveling vehicle body 1
Can be operated directly or moved by remote control. Then, the manipulator 3 is operated by a predetermined program while the traveling vehicle body 1 is stopped at a predetermined distance from the work line L, and the vibrator insertion / extraction device 9 is moved to each compaction work point P ₁ on the work line L. P ₂ ... _Pn is moved to push in and operate the bar-shaped vibrator 10.
Perform the pulling operation.

The moving cable 13 is pulled out from the reel 33 in accordance with the insertion / extraction operation of the rod-shaped vibrator 10.
The fixed cable 39 is mainly responsible for the twisting when the manipulator 3 is wound around and is horizontally swung.

[0022]

As described above, in the vibrator operating device for concrete compaction of the present invention, the vibrator inserting / extracting device is supported through the manipulator supported by the traveling vehicle body, and the rod-shaped vibrator is moved and inserted / extracted with these devices. Therefore, concrete can be compacted quickly and accurately without imposing heavy labor on the worker, and since the cable winding device is swung together with the manipulator arm swiveling operation, the cable winding device and the car body are It is possible to prevent damage to the fixed cable by simply using a cable that is strong against torsional force.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic configuration of an embodiment of a device of the present invention.

FIG. 2 is a plan view showing a work state of the above.

FIG. 3 is a plan view of a vibrator insertion / extraction device portion of the same device.

FIG. 4 is a half cross-sectional view of the cable winding device used in the present invention.

[Explanation of Codes] 1 traveling vehicle 2 rubber wheel 3 manipulator 4 support post 5 first joint metal fitting 6 first arm 7 second joint metal fitting 8 second arm 9 vibrator insertion / extraction device 10 rod-shaped vibrator 11 vibrator cylinder 12 vibrator 13 moving cable 14 Take-up reel 15,16 Guide roller 20 Support frame 21 Feed roller 22 Concave groove 23 Electric motor 24 Gear 25 Feed shaft roller 26 Insertion length detector 27 Height detector 30 Cable winder 31,32 Bearing arm 33 Cable winding Take-up reel 34 Fixed shaft 35 Spiral spring 36 Support shaft 37 Slip ring 38 Slider 38a Coil spring 39 Fixed cable 40 Inverter 41 Prime mover 42 Generator

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Claims (1)

[Claims] 1. A vibrating member inserting / removing device is supported by a manipulator in which a supporting column is erected on a traveling vehicle body and an arm is attached to the supporting column so as to be rotatable. The vibrator inserting / removing device causes a rod-shaped vibrator to vibrate. A cable winder having a rod-shaped vibrator fixed to the tip of a cylinder so that the rod-shaped vibrator can be freely inserted and removed, and is supported by the upper end of the column, and has a reel that winds a moving cable connected to the rod-shaped vibrator at a portion that rotates with the arm. A vibrator operating device for concrete compaction, comprising: a power source connected to the moving cable via a rotary power source connector provided on the reel.