JPH078732Y2 - Concrete leveling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a concrete leveling device for leveling a concrete placing surface when constructing a concrete floor surface or the like.

(Prior art) In order to level concrete on a smooth surface after placing concrete when constructing a concrete floor surface, etc., the level of the concrete surface is conventionally leveled with a trowel by hand, but it is inefficient in manual work and Not only takes time, but also the leveling accuracy is poor,
In addition, there are various problems such as difficulty in securing workers.

Therefore, recently, an automatic leveling device has been put into practical use, which automatically runs on the concrete pouring surface after pouring the concrete in an uncured state.

(Problems to be solved by the invention) However, in the above-mentioned conventional apparatus, the running wheels traveling on the concrete placing surface disturb the leveling surface, and the weight of the apparatus is directly applied to the concrete placing surface. Therefore, there was a problem that the reinforcing bars below the concrete pouring surface were bent and damaged.

In view of this, the present invention eliminates the traveling wheels that run on the concrete pouring surface and can level the concrete pouring surface without traveling on the concrete pouring surface and the level and height of the leveling device. The purpose of the present invention is to provide a concrete leveling device that can automatically control the concrete.

[Constitution of device]

(Means for Solving the Problems) In order to solve the problems of the above-described conventional technology, the present invention provides
Rails are laid on both sides of the concrete placing surface, and traveling beams are provided across the rails so that they can travel freely on the rails.The traveling beams travel in the direction perpendicular to the traveling direction of the traveling beams. A body is provided, and a concrete leveling section is provided on this running body through an up-down adjusting mechanism and a level adjusting mechanism, and a laser receiver and a tilt angle detector for receiving a laser beam oscillated at a planned height on the concrete leveling section. Is provided, and the values of the height and inclination angle of the concrete leveling portion detected by the laser receiver and the inclination angle detector are compared and calculated with a preset value, and based on the result, the vertical adjustment mechanism and the level are adjusted. A control device for operating the adjusting mechanism is provided.

(Operation) The concrete leveling section is operated to align the lower end of the concrete leveling section with the planned leveling surface position, and then the height and tilt angle of the concrete leveling section detected by the laser receiver and the tilt angle detector. The leveling work of the concrete placing surface is performed by running the concrete leveling part on the traveling beam while performing the comparative calculation of the value of 1 and the preset value. After the leveling of the concrete placing surface at that position is completed, the traveling beam is caused to travel for a predetermined distance and stopped, and the concrete leveling portion is made to run again to perform leveling work. By repeating this operation, the concrete pouring surface can be leveled over the entire area.

The concrete placing surface is leveled on the horizontal surface by the concrete leveling portion, smoothed further, and promotes subsidence of the aggregate.

(Embodiment) Hereinafter, the present invention will be described with reference to an embodiment shown in the drawings.
As shown in FIG. 1, the concrete leveling apparatus 1 comprises a traveling beam 2 and a concrete leveling section 3, and the traveling beam 2 is provided with self-propelled driving sections 4, 4.

As shown in FIGS. 1 to 3, the traveling beam 2 includes traveling legs 6 and 6 provided corresponding to rails 5 and 5 laid on both sides of a concrete placing surface C, and the traveling legs. It is composed of a beam portion 7 straddling the upper part between 6 and 6.

The traveling leg portion 6 is a lower cross member 8 provided in parallel with the rail 5.
And the upper horizontal member 9 formed slightly shorter than the lower horizontal member 8 are fixed to each other by the pillars 10, 10 and the reinforcing members 11, 11 to form a trapezoidal shape. Rollers 12, 12 for traveling the traveling beam 2 on the rail 5 are rotatably provided at both ends of the.

The beam 7 is a cross girder provided on the upper cross members 9,9 of the traveling legs 6,6.
13 and 13 and the lower chord members 14 and 14 that are provided at the right angles in the horizontal direction at both ends of the cross girders 13 and 13 and are fixed between the cross girders 13 and 13 are formed in a rectangular shape, and End pillars 15,15,15,15 formed in a triangular shape diagonally upward from both ends of 13,13
Is provided. Then, the upper chord member 16 is fixed in parallel with the lower chord members 14 and 14 between the apexes of the triangles formed by the end columns 15, 15, 15, and 15, and the lower chord member is provided between the ends 16a of the upper chord members 16. Inclined columns 17, 17, 17, 17 for fixing the members 14, 14 and the upper chord member 16 are provided. In addition, between the lower chord members 14 and 14 and the upper chord members 16 and between the lower chord members 14 and 14 and the end columns 15, 15, 15 and 15, an appropriate number of diagonal members 18, 18
.. are fixed, and the horizontal members 19, 19 are fixed in parallel with the cross girder 13 between the end pillars 15, 15 forming a triangular shape.

The drive units 4, 4 of the traveling beam 2 are provided on the upper portions of the lower cross members 8, 8, respectively. That is, the drive unit 4 fits the pulley 21 into the shaft of the geared motor 20 placed on the upper portion of the lower horizontal member 8 and the pulley 22 fitted into the shaft of the roller 12 of the lower horizontal member 8.
It is configured by winding a belt 23 between and.

The concrete leveling section 3 is supported by the traveling bodies 24, 24 which travel using the lower chord members 14, 14 as guide rails, and the traveling bodies 24, 24 via the lifting jacks 25, 25 as vertical movement and level adjusting mechanisms. It is composed of a screw 26 and a diaphragm 27.

The traveling body 24 is provided with frames 28, 28 so as to sandwich the lower chord members 14, 14 from both sides, and a connecting member 29 is provided at a right angle to the frames 28, 28. And the frame 28,28
Lower chord members 14 and 14 from above and below,
Two sets of a lower roller 31 and a lower roller 31 are provided on one side of the frame 28 with a space therebetween. One of these sets is configured so that the rotation is transmitted from the roller driving motor 32. Has become.

Elevating jacks 25, 25 are vertically provided at both ends of the coupling member 29. A frame 33 is joined to the tip end of the elevating jacks 25, 25, and a screw 26 is provided below the frame 33. It is supported. The pair of lifting jacks 25, 25 is a combination of a vertical adjustment mechanism and a level adjustment mechanism.Height adjustment is performed by synchronizing the lifting jacks 25, 25, and the level adjustment is performed by the lifting jacks 25, 25. Perform by selectively operating 25.

Of course, different mechanisms may be used for the vertical adjustment mechanism and the level adjustment mechanism. The screw 26 is formed by winding two screw blades 35 around the outer periphery of the screw shaft 34, and the screw 36 is covered with a cover 36 from the upper front half to the lower rear. Further, a motor 37 for rotating the screw 26 is mounted on the frame 33, and the rotation is transmitted from the motor 37 to the screw 26 via a chain 38. In the figure, reference numeral 39 is a chain cover.

The diaphragm 27 is provided on the rear side of the frame 33 via arms 40, 40.
Is supported in a horizontal position. The vibrating plate 27 has substantially the same length as the screw 26, and a vibrating mechanism 41 is mounted at the center of the vibration frequency 26. This diaphragm 27
The lower surface of the screw is a flat leveling surface 42, and the leveling surface 42 is located at substantially the same height as the lower end of the screw blade 35 of the screw 26.

A laser receiver 43 for receiving a laser beam 1 oscillated from a laser oscillator (not shown) at a planned and uniform height is provided at the end of the frame 33, and the central part of the frame 33 is provided. Is provided with a tilt angle detector 44.

FIG. 6 shows a control system for keeping the height and level of the concrete leveling part 3 during the leveling work constant.

For the height control, the laser light 1 emitted from the laser oscillator with the planned height is received by the laser receiver 43 to detect the height of the concrete leveling section 3, while for the level control, the inclination angle detector 44. By concrete leveling part 3
Level is detected and each detection signal is input to the control device 45.

The control device 45 compares the input values of the height and the inclination angle with preset values, and gives a command for expansion / contraction operation to the lifting jacks 25, 25 based on the calculation result.

Next, the operation of the above embodiment will be described.

Concrete is cast on the floor surface, etc., and while it is in an uncured state, the lifting jacks 25, 25 are operated to lower the screw 26 through the frame body 33 of the concrete leveling section 3, and the lower end of the screw blade 35 is planned. When placed in the leveling surface position, the frequency
The leveling surface 42 of the lower surface of 27 is also set at the same height position.

Then, the driving motor 37 of the screw 26 is activated to rotate the screw 26, and at the same time, the vibrating mechanism 41 is activated to move the concrete leveling section 3 on the traveling beam 2 to cause the screw 26 and the diaphragm 27 to move the concrete. The surface is flattened into a horizontal plane. Then, when the leveling of the concrete surface is completed, the geared motors 20 and 20 are activated to move the traveling beam 2 in the direction of the white arrow for a predetermined distance and stop, while the concrete leveling portion 3 is moved again. Leveling work is performed in the same manner as described above. At this time, the excess concrete is discharged leftward in FIG. 4 or leftward (leveling direction) in FIG. 5 by the action of the screw blades 35. After that, the concrete surface is leveled to a completely smooth surface by the leveling surface 42 after the leveling by the screw 26 is erased by the fine vibration of the diaphragm 27 in the vertical direction. Further, in the construction plan, when it is desired to discharge the surplus concrete to the right in FIG. 5, the screw may be rotated to the left in FIG.

During the above work, the height and level of the concrete leveling section 3
Always detected by the laser receiver 43 and the tilt angle detector 44, the converted signal is input to the control device 45, the value and a preset value are compared and calculated, and the difference between the two exceeds the allowable range. When it occurs, the control device 45 immediately gives an operation command to the lifting jacks 25, 25, thereby returning the concrete leveling part 3 to the normal posture.

In the illustrated embodiment, the case where the screw 26 is used for the leveling body is shown, but this is not limited to the screw, and other leveling body may be used as long as it can flatten the concrete surface. Also, the vertical movement mechanism may be a mechanical means such as a link mechanism instead of the lifting jack.

Furthermore, although the case where a pulley and a belt are used for the driving part of the traveling beam is shown, it is also possible to use a sprocket and a chain, and a roller and a guide rail are used for driving the concrete leveling part. It is also possible to form a rack on the rack and combine it with a pinion, but the rack is not limited to these.

[Effect of device]

As described above, according to the present invention, since the concrete leveling portion is provided on the traveling beam traveling on the rails laid on both sides of the concrete placing surface, the traveling wheels are directly attached on the concrete placing surface. Never run and therefore
It does not disturb the leveling surface of the concrete or damage the reinforcing bars on the concrete pouring surface. Moreover, the leveling level of the concrete leveling part can be kept uniform by the rails laid on both sides of the concrete placing surface.

Further, since the mechanism for detecting the height and level of the leveling portion and automatically correcting the level is provided, it is possible to obtain an effect such as obtaining a leveling surface with high accuracy.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a side view of a traveling beam, FIG. 3 is an enlarged front view of a pedestal portion in FIG. 2, and FIG. 4 is a concrete leveling part. FIG. 5 is a side view, FIG. 5 is a sectional view taken along line AA of FIG. 1, and FIG. 6 is a configuration diagram of a control system. 1 ... Concrete leveling device, 2 ... Traveling beam, 3 ... Concrete leveling part, 4 ... Drive part, 5 ... Rail, 6 ...
… Running legs, 7 …… Beams, 12 …… Rollers, 2 …… Gard motors, 25 …… Elevating jacks, 26 …… Screws, 27
...... Vibration plate, 30 ...... Upper roller, 31 ...... Lower roller, 35 ......
Screw blades, 41 ... Excitation mechanism, 43 ... Laser receiver, 44 ... Tilt angle detector, 45 ... Control device.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Minor Ochiai 8-21-1, Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Creator Toru Shimano 1293 Sanwa, Chiba, Chiba Equipment Co., Ltd. Chiba Factory (72) Inventor Kazuo Yamazaki 1293 Amado-cho, Chiba City, Chiba Sanwa Equipment Co., Ltd. Chiba Factory (56) Reference JP-A-1-80663 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A rail is laid on both sides of a concrete placing surface, and a traveling beam is provided across the rail so as to travel freely on the rail. The traveling beam is perpendicular to the traveling direction of the traveling beam. A moving body that can move in any direction is provided, and a concrete leveling section is provided on this running body through an up-down adjustment mechanism and a level adjustment mechanism. The concrete leveling section receives laser light that receives laser light oscillated at a planned height. And a tilt angle detector are provided, and the values of the height and tilt angle of the concrete leveling part detected by the laser receiver and the tilt angle detector are compared with a preset value, and based on the result, A concrete leveling device comprising a control device for operating the vertical adjustment mechanism and the level adjustment mechanism.