JP2517259Y2 - Concrete leveling equipment - Google Patents

Description

DETAILED DESCRIPTION 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) When constructing a concrete floor surface, etc., in order to even out the concrete after placing it on a smooth surface, the conventional method relies on manual labor to level it with a trowel, but it is inefficient with manual work. However, there are various problems such as not only being time-consuming and time-consuming, but also being inferior in leveling accuracy and being difficult to secure workers.

Therefore, recently, a device for automatically leveling a concrete pouring surface is being put into practical use while the concrete pouring surface is self-propelled by a running body such as an endless track after the concrete is poured and in an uncured state.

(Problems to be solved by the invention) However, in the above-described self-propelled leveling device, the leveling surface is disturbed by the traveling wheels traveling on the concrete placing surface,
Further, since the weight of the device is directly applied on the concrete placing surface, there is a problem that the reinforcing bars below the concrete placing surface are bent and damaged.

In view of this, the present invention can level the concrete pouring surface without traveling on the concrete pouring surface, and can automatically control the level of the device even when averaging the water level as well as the slope value. The purpose of the present invention is to provide a concrete leveling device.

(Means for Solving the Problem) In order to solve the problems of the above-mentioned conventional techniques, the present invention provides a traveling beam that can travel freely on rails laid on both sides of a concrete placing surface. And the traveling beam has a traveling body that is movable in a direction perpendicular to the traveling direction of the traveling beam, and this traveling body is provided with a concrete leveling portion via an up-down adjusting mechanism and a level adjusting mechanism, In this concrete leveling section, a traveling amount detector that detects a relative movement distance with respect to the traveling beam, an inclination angle detector, and a laser beam that is movable up and down with respect to the leveling section and is emitted at a predetermined height. A laser receiver for receiving light is provided, and the amount of vertical movement of the laser receiver is calculated based on the amount of movement of the concrete leveling part detected by the running amount detector and the preset gradient value, and Based on calculated value Based on the height of the concrete leveling portion and the value of the inclination angle detected by the laser receiver and the inclination angle detector, a receiver control device for operating a vertical movement mechanism for vertically moving the laser receiver by a required amount is provided. A leveling section control device is provided for performing a comparative calculation with a preset value and operating the vertical adjustment mechanism and the level adjustment mechanism based on the calculation result so that the laser receiver is always positioned at a constant height. It is a feature.

(Operation) Adjust the vertical adjustment mechanism and the level adjustment mechanism so that the concrete leveling part has a normal height and posture at the leveling start point, and then in that state the laser receiver emits a laser beam with a predetermined height. The height position is adjusted by the vertical movement mechanism so that light can be received normally. After this, the concrete leveling section is driven, and at the same time, the concrete leveling section is run on the traveling beam at a constant speed to start leveling work.

Along with the traveling of the concrete leveling section, the running amount detector detects the running amount (moving distance) of the concrete leveling section, and at the same time, the light receiving device control device and the running amount of the concrete leveling section and the preset slope The vertical movement amount of the laser light receiver is calculated based on the calculated value and the laser light receiver moves up and down based on the calculated value. When the laser receiver moves up and down, the point at which the laser receiver receives the laser light emitted at a predetermined height shifts, and the level detected by the leveling unit control device immediately and the value set in advance Is compared and calculated, and the vertical adjusting mechanism is operated based on the result to position the concrete leveling portion so that the laser receiver is always positioned at a constant height. Regarding the posture of the concrete leveling section, the value of the inclination angle of the concrete leveling section detected by the tilt angle detector is compared with the preset value, and the level adjustment mechanism adjusts based on the result. To be done.

Hereinafter, the present invention will be described with reference to embodiments shown in the drawings.

The concrete leveling device 1 comprises a traveling beam 2 and a concrete leveling section 3 as shown in FIG.
Is equipped with self-propelled drive units 4, 4.

As shown in FIGS. 1 and 2, the traveling beam 2 includes traveling legs 6 and 6 provided corresponding to rails 5 and 5 laid on both sides of the 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 portion 7 is provided on the upper cross members 9,9 of the traveling legs 6,6 and the cross girders 13,13 provided at both ends of the cross girders 13,13 at right angles in the horizontal direction. End pillars 15, 15, 15, which are formed in a rectangular shape with the lower chord members 14, 14 fixed between 13, 13 and which are formed in a triangular shape diagonally upward from both ends of the cross girders 13, 13. 15
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, 1
8 ... are fixed, and the horizontal members 19, 19 are fixed in parallel with the cross girder 13 between the end columns 15, 15 that form 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 a traveling body 2 that travels using the lower chord members 14, 14 as guide rails as shown in FIGS. 2 and 3.
Screws supported by the traveling bodies 24, 24 through 4, 24 and lifting jacks 25, 25 as vertical movement and level adjustment mechanisms.
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 frames 28,2
The upper roller 30 is made by sandwiching the lower chord members 14 and 14 from above and below in 8
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.

The driving motor 32 includes an encoder 32A as a traveling amount detector that detects the traveling amount (moving distance) of the traveling body 24.
Is attached.

Elevating jacks 25, 25 are vertically provided at both ends of the coupling member 29, and a frame 33 is provided at the tip of the elevating jacks 25, 25.
Are coupled, and a screw 26 is pivotally supported below the frame body 33. 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. The vertical adjustment mechanism and the level adjustment mechanism may use different mechanisms. 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 driving the rotation of the screw 26 is mounted on the frame body 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 2 is provided on the rear side of the frame 33 via arms 40, 40.
7 is supported in a horizontal position. The diaphragm 27 has a length substantially the same as that of the screw 26.
A vibrating mechanism 41 is mounted in the central part of the. This diaphragm
The lower surface of 27 is a flat leveling surface 42.
Are located at substantially the same height as the lower end of the screw blade 35 of the screw 26.

At the end of the frame 33, a laser receiver 43 for receiving laser light emitted from a laser oscillator (not shown) at a planned and uniform height is provided, and at the center of the frame 33, A tilt angle detector 44 is provided.

The laser receiver 43 is moved up and down by a vertical movement mechanism 45, as shown in FIGS. 4 and 5. The vertical movement mechanism 45 is formed by a pillar 46 that is erected on the frame 33.
A rack rod 47 that hangs below the laser receiver 43 is inserted at the upper end of the rack and vertically supported, and a motor 48 is attached to the rack rod 47.
The rotating pinion 49 is meshed with each other, and the laser receiver 43 is moved up and down by driving the motor 48. The motor 48 is additionally provided with an encoder 50 as a detector for detecting the vertical amount.

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

As for the height control, the laser receiver 51
The laser beam emitted by the laser receiver 43 is received by the laser receiver 43 to detect the height of the concrete leveling section 3. On the other hand, for level control, the inclination angle detector 44 detects the level of the concrete leveling section 3 to detect each level. Leveling unit control device for the detection signal of
Enter in 52. For slope control, the travel amount detector 32A (encoder) detects the travel amount and inputs it to the photoreceiver control device 53, and compares and calculates the slope set value to determine the vertical amount of the laser photodetector 43, The device vertical movement mechanism 45 is operated to vertically move the laser receiver 43.

The control device 52 compares and calculates the input values of the height and the inclination angle with preset values, and gives a command of 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 and the like, so that the concrete leveling part 3 has a normal height and posture at the leveling start point while it is in an uncured state. , 25 are operated and adjusted, and then in that state, the height position is adjusted by the vertical movement mechanism 45 so that the laser receiver 43 can properly receive the laser light emitted at a predetermined height. After this, the concrete leveling section 3 is driven, and at the same time, the concrete leveling section 3 is caused to travel on the traveling beam 2 at a constant speed to start leveling work (FIG. 7 (A)).

The concrete leveling section 3 is driven by activating the driving motor 37 of the screw 26 to rotate the screw 26 and at the same time activating the vibrating mechanism 41 to cause the concrete leveling section 3 to travel on the traveling beam 2. Screw 26 and diaphragm
By 27, the concrete surface is flattened into a horizontal plane.

At this time, the excess concrete is discharged leftward (leveling direction) in FIG. 2 by the action of the screw blades 35. The concrete surface thereafter is finely oscillated in the vertical direction of the diaphragm 27 to eliminate the leveling marks by the screw 26 by the leveling surface 42 and leveling it to a completely smooth surface.

As the concrete leveling unit 3 travels (FIG. 7 (B)), the running amount (moving distance) of the concrete leveling unit 3 is detected by the encoder 32A as a running amount detector, and at the same time, the light receiver control device 53 Thus, the vertical movement amount of the laser light receiver 43 is calculated based on the traveling amount of the concrete leveling unit 3 and the preset gradient value, and the laser light receiver 43 moves up and down based on the calculated value. When the laser receiver 43 moves up and down, the point where the laser receiver 43 receives the laser light emitted at a predetermined height is displaced (FIG. 7 (C)), and the laser receiver 43 is immediately moved by the leveling unit controller 52. The value detected by and the value set in advance are compared and calculated, and the lifting jacks 25, 25 of the vertical adjustment mechanism are operated based on the result,
The concrete leveling part 3 is positioned so that the laser receiver 43 is always positioned at a constant height (FIG. 7 (D)). Regarding the posture of the concrete leveling unit 3, the value of the tilt angle of the concrete leveling unit 3 detected by the tilt angle detector 44 is compared with the preset value, and the level is adjusted based on the result. As a mechanism, the lifting jacks 25, 25 are operated and adjusted.

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,
Other leveling bodies may be used as long as they can flatten the concrete surface, and 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. It does not run and therefore does not disturb the leveling surface of the concrete or damage the reinforcing bars of the concrete placing 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. In particular, there is an effect that the leveling work can be performed along the gradient value, and the high-precision leveling of concrete on the inclined surface can be automatically performed.

[Brief description of drawings]

1 is a front view showing an embodiment of the present invention, FIG. 2 is a side view of a concrete leveling section, FIG. 3 is a front view of the same, and FIG. 4 is an example of a vertical movement mechanism of a laser receiver. Front view, No. 5
The figure is a side view of the same, FIG. 6 is a block diagram of a control system, and FIGS. 7A to 7D are explanatory views showing the operation. 1 ... Concrete leveling device, 2 ... Traveling beam, 3 ... Concrete leveling part, 4 ... Drive part, 5 ... Rail, 6 ...
… Running legs, 7 …… Beams, 12 …… Rollers, 20 …… Gard motor, 25 …… Up and down jacks as an example of vertical adjustment and level adjustment mechanism, 26 …… Screw, 27 …… Vibration plate, 30
...... Upper roller, 31 ...... Lower roller, 32A ...... Example encoder for running detector, 35 ...... Screw blade, 41 ...... Vibration mechanism, 43 ...... Laser receiver, 44 ...... Inclination angle detector, 45 ...
... Up / down moving mechanism of laser receiver.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Minor Ochiai 8-21 1-1 Ginza, Chuo-ku, Tokyo Takenaka Corporation Tokyo Main Store (72) Creator Kazuo Yamazaki 1293 Amado-cho, Chiba-shi, Chiba Sanwa Equipment Co., Ltd. Stock company Chiba factory (56) Reference JP-A-64-80663 (JP, A) JP-A-1-295972 (JP, A)

Claims (1)

(57) [Scope of utility model registration request] 1. A traveling beam which can travel on rails laid between both sides of a concrete placing surface and which can move in a direction perpendicular to the traveling direction of the traveling beam. The traveling amount detection for detecting the relative movement distance to the traveling beam is provided on the traveling body through the vertical adjustment mechanism and the level adjustment mechanism. And a tilt angle detector, and a laser receiver that can move up and down with respect to the leveling section and receives laser light emitted at a predetermined height, and the concrete leveling level detected by the running amount detector is provided. The vertical movement amount of the laser receiver is calculated based on the movement amount of the bending part and the preset gradient value, and the vertical movement mechanism that moves the laser light receiver up and down by the required amount is operated based on the calculated value. Control A device is provided, and the values of the height and inclination angle of the concrete leveling part detected by the laser receiver and the inclination angle detector are compared with a preset value, and the upper and lower sides are calculated based on the calculation result. A concrete leveling device comprising a leveling part control device for operating an adjusting mechanism and a level adjusting mechanism so that a laser receiver is always positioned at a constant height.