JP2586857Y2 - Automatic concrete compaction machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic concrete compacting machine used for concrete placing work.

[0002]

2. Description of the Related Art Conventionally, in order to prevent a space from being formed in concrete at the time of concrete casting and to prevent the strength from decreasing, a vibrator is usually inserted into the concrete to be cast and compacted. In this work, the worker moved the vibrators one by one by hand. The vibrator was supplied by a cable from a power source located at a position distant from the casting location.

[0003]

However, when concrete is cast over a wide area, such as a building floor or a bottom plate of an LNG tank, the extension cable becomes long, making it difficult to handle. The operation of the vibrator was very tired, and the work was difficult for the workers, especially when casting concrete during the day and night.

[0004] The present invention has been made in view of the above-mentioned circumstances. By mounting a generator, an inverter, a cord reel for winding a cable, and the like on a traveling unit having crawlers, wheels, and the like, the conventional disadvantages are solved. The purpose of the present invention is to provide a concrete compaction machine that has been lost.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a traveling unit, a swivel rotatably mounted on the traveling unit, and a cable mounted on the swivel. A cord reel that is wound and rotated by a motor, a rotatable guide roller that guides a cable extending from the code reel, a vibrator provided at the end of the cable, and driving the vibrator It is characterized by comprising an inverter and a drive device for running the running section.

[0006]

The electric power generated by the generator is converted into a voltage and a frequency necessary for the vibrator by the inverter and supplied to the vibrator.

[0007] The output of the inverter is supplied to the vibrator by a cable, but depending on the length of the cable,
The cable extends from the cord reel, is received by a guide roller, is bent in a vertical direction, and a vibrator is connected to the end thereof.

Since the code reel and the guide roller rotate together with the swivel table, it is possible to direct the vibrator 180 degrees in the horizontal circumferential direction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a front view thereof.

Referring to FIG. 1, reference numeral 1 denotes a traveling unit having a built-in drive unit 11 and an engine and a generator 10. In this case, the traveling unit is a crawler type.
It may be a monorail type. Although not shown, the engine and the generator, which are drive devices, may be provided so as to be mounted on a swivel. A swivel 2 is mounted on the traveling unit 1 so as to be rotatable about a center shaft 2a. The swivel 2 has a code reel 3, a guide roller 4, an inverter 5 and the like mounted thereon.
The right and left 90 degrees are rotated at a pitch of 30 degrees and can be fixed every 30 degrees. However, the swivel base 2 may be rotated by a predetermined angle by means such as engaging a pinion attached to the motor shaft with a ring gear.

The traveling section 1 is adapted to move a crawler forward and backward from a gasoline engine as a driving device 11 via a clutch and a transmission (not shown). In addition, steering can be performed according to the degree of engagement of the left and right clutches. The operation of the traveling unit 1 can be performed by a cab 6 shown in FIG.

A generator 10 is connected to the gasoline engine, which is the driving device 11, and an output side of the generator 10 is connected to an inverter 5 so that 200V → 48V
The vibrator 8 is converted from 0/60 Hz to 100 to 240 Hz, and is wound around the code reel 3 and then driven via the cable 7 received by the guide roller 4.

The operation other than the driving operation of the traveling unit 1 is performed on the operation panel 9. By switching the switch of the operation panel 9 from the near side to the far side, the cord reel 3 is operated.
The operation of the vibrator 8 (up, down, vibration, stop or emergency stop) can be operated by a hand switch (not shown) anywhere near the concrete compactor.

The cord reel 3 is rotated forward and backward by a geared motor 3a with a brake. Therefore cable 7
And the vibrator 8 at the tip of the guide roller 4
The cord reel 3 is rotated vertically, and the insertion length of the vibrator 8 into the poured concrete can be adjusted to be optimal.

Next, the use of the concrete compaction machine of the present invention will be described. First, the key switch is turned on to start the gasoline engine, which is the drive unit 11, and necessary operations are performed on the driver's cab 6, so that the crawler, which is the traveling unit 1, is moved forward (in some cases, backward). In this case, the vibrator 8 has been lifted to the position shown by the solid line in FIG. When the vehicle arrives at the predetermined casting position, the traveling is stopped, the swivel 2 is automatically or manually turned as required, and then the necessary push button of the operation panel 9 is pressed to rotate the code reel 3,
The cable 7 is extended so that the vibrator 8 is inserted into the cast concrete.

Next, the worker operates the hand switch,
Work is performed by vibrating the vibrator 8. During the work, the code reel 3 and the guide roller 4 are rotated by rotating the swivel table 2 in a required direction automatically or manually by a motor (not shown) as necessary.
By operating the push button of the hand switch, the vibrator 8 is moved up and down, stopped, and started. Note that a motor may be used as the driving device 11 and a battery may be used instead of the generator 10.

[0017]

According to the present invention described in detail above, the following effects can be obtained. (1) There is no need to manually transport the vibrator,
The labor is reduced because the vibrator is transported to the required location.

(2) Since the winding and suspension of the vibrator is automated, heavy labor is reduced. (3) Conventionally, there was a power supply in a place away from the work place of the vibrator, but in the present invention, a generator is mounted,
And since the cable is wound around the cord reel, the cable (cab-ear cable) is no longer transported, which reduces the labor required for the work and eliminates damage to the cable and makes it easy to work in work places without power supply. It can be carried out. (4) Since it is not necessary to manually move the vibrator, a large-capacity (large-weight) vibrator can be used, and the time required for placing concrete can be reduced.

(5) Since the vibrator is of a suspended type provided at the end of the cable, even when the vibrator hits the reinforcing bar when compacting the reinforced concrete, the vibrator descends by the weight of the reinforcing bar and moves down by its own weight. Even if the concrete is deep, the cable can be paid out even if the concrete is deep, so that the concrete can be compacted to a predetermined depth.

[Brief description of the drawings]

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

FIG. 2 is a front view showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running part 2 Revolving base 2a Center shaft 3 Code reel 3a Geared motor 4 Guide roller 5 Inverter 6 Cab 7 Cable 8 Vibrator 9 Operation panel 10 Generator 11 Drive

──────────────────────────────────────────────────続 き Continuing on the front page (72) The creator Yuzaburo Fujinaga 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) The creator Osamu Nakamura 1-2-2 Shibaura, Minato-ku, Tokyo No. 3 Inside Shimizu Corporation (72) Inventor Yasutaka Watanabe 1-17-13 Hamamatsucho, Minato-ku, Tokyo (72) Within Exen Corporation (72) Inventor Toshiharu Matsui Hamamatsucho, Minato-ku, Tokyo JP-A-5-340100 (JP, A) JP-A-5-86729 (JP, A) JP-A-5-96310 (JP, U) Kohei 6-92697 (JP, B2) (58) Field surveyed (Int. Cl. ⁶ , DB name) E04G 21/06

Claims (1)

(57) [Scope of request for utility model registration] 1. A traveling unit, a swivel rotatably mounted on the traveling unit, and a cord reel mounted on the swivel and wound by a cable and rotated by a motor. A rotatable guide roller for guiding a cable extending from the cord reel, a vibrator provided at the end of the cable, an inverter for driving the vibrator, and a driving device for running the running unit. Automatic concrete compaction machine characterized by the above-mentioned.