JPH061609U - Concrete floor finishing equipment - Google Patents

Abstract

(57) [Summary] (Correction) [Structure] A pair of left and right running bodies 3a and 3b supported by the body 2 for self-propelled on the floor, and supported by the body 2 to rotate around these running bodies. Multiple swivel arms 4a, 4
b, an annular body that is detachably attached to the ends of the left and right swivel arm groups, and has an opening at the center into which the traveling bodies 3a and 3b can be fitted, the traveling bodies 3a and 3b, and the swiveling arms 4a and 4b. And a drive means for rotating the. [Effect] It is possible to efficiently remove the leitance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concrete floor finishing device, and more particularly to a concrete floor finishing device that finishes the surface of a concrete in a latter half solidified state.

[0002]

[Prior art]

 As a finishing device for mechanically finishing the surface after pouring concrete without manpower, there is, for example, one disclosed in Japanese Patent Publication No. 3-9983.

In the finishing device disclosed in this publication, a plurality of swivel arms are rotatably driven around each traveling portion of a pair of traveling bodies, a trowel is attached to the tip of each swivel arm, and a group of left and right swivel arms is provided. The trowels are arranged so as to overlap each other, and while the traveling body is traveling, the revolving arm is pivoted so that the concrete floor surface is leveled by the trowel.

When such a finishing device is used, as a pretreatment, the aggregate such as gravel is sunk under the condition that the concrete is relatively soft, so that the gelled concrete component is floated on the surface, that is, a so-called “slag out”. The work called is performed.

[0005]

[Problems to be solved by the device]

 With conventional finishing equipment, however, the surface of the concrete is leveled by the trowels attached to the tips of the swivel arms of the finishing equipment. The equipment itself settled down due to its own weight, and it was not possible to perform "slagging" work using the finishing equipment. For this reason, the work of "putting it out" had to rely on human labor, leading to a reduction in work efficiency.

In view of this, the present invention makes it possible to automatically perform the above-mentioned “sliding out” work by using a finishing device, and eliminate the manual pretreatment work to improve the work efficiency of the finishing work. It was made for the purpose of providing a concrete floor finishing device that can be used.

[0007]

[Means for Solving the Problems]

 To solve the problems of the above-mentioned conventional techniques, the present invention is directed to a pair of left and right traveling bodies that are supported by the aircraft and are self-propelled on the floor, and an aircraft body that rotates the surroundings of these traveling bodies. A plurality of swivel arms supported by the armature, an annular body that is detachably attached to the ends of the left and right swivel arm groups, and has an opening at the center where the traveling body can fit, and the traveling body and the swivel arm are rotated. And driving means for driving.

[0008]

[Action]

 Concrete pouring In the latter half of the period, concrete finishing equipment is loaded onto the concrete floor that has been solidified. At that time, by attaching an annular body to the lower part of the left and right swivel arms, the traveling body is fitted into the opening at the center of this annular body and the traveling body is grounded on the concrete floor surface and the annular body also contacts the concrete floor surface. Ground. When the left and right swivel arm groups are swung in the opposite directions while driving the running body in this way, the annular body rubs against the concrete floor and advances, causing "slagging" in the concrete. In this case, since the ring-shaped body has a large ground contact area, it can be “rolled out” without settling due to the weight of the finishing device itself. When the "slot removal" work is completed, the annular body is removed, and the work shifts to the finishing work using the trowel of the finishing device.

[0009]

【Example】

 The present invention will be described below with reference to the embodiments shown in the drawings.

The concrete floor finishing apparatus 1 according to the present invention has a structure of self-propelled on the concrete floor surface in the latter half of the concrete pouring and solidified state. FIG. 1 is a plan view and FIG. 2 is a motor or the like for convenience. As shown in the front view in which the position is changed and the half part is a cross section, the left and right turns of the left and right parts of the body 2 are performed by turning the pair of left and right running bodies 3a and 3b and the surroundings of the respective running bodies 3a and 3b. The arm 4a, 4b group is provided. It should be noted that these symmetrically provided components will be described with reference numerals a and b.

In the illustrated embodiment, the traveling bodies 3a and 3b are crawler type traveling bodies in which rubber crawlers 6a and 6b are wound around a pair of sprockets pivotally supported by frames 5a and 5b. The crawlers 6a and 6b can be driven in the forward and reverse directions by selecting the rotation direction of the internal reversible motor. The traveling bodies 3a and 3b are not limited to the crawler type and may be tire type wheels or the like.

Shaft cylinders 7a and 7b are erected on the frames 5a and 5b of the left and right traveling bodies 3a and 3b, respectively. The upper parts of the shaft cylinders 7a and 7b and the machine body 2 respectively engage clutches 8a and 8b. Gear cases 10a and 10b for supporting the motors 9a and 9b are fixed to the upper portions of the respective shaft cylinders 7a and 7b.

In these gear cases 10a and 10b, pulleys 11a and 11b (one of which is not shown; the same applies hereinafter) rotated by motors 9a and 9b and shaft barrels 7a and 7b are fitted to be rotatable relative to each other. Pulleys 12a, 12b are provided, belts 13a, 13b are wound between the pulleys 11a, 12a, and a plurality of pulleys 12a, 12b are fitted on the shaft cylinders 7a, 7b. Pins 14a and 14b are vertically provided. These pins 14a and 14b are inserted into the through holes of the flanges 16a and 16b of the rotary cylinders 15a and 15b which are fitted to the rotary cylinders 7a and 7b so as to be relatively rotatable and axially slidable. Brackets 18a and 18b having downwardly projecting shafts 17a and 17b are fixed to the lower sides of the shafts 15a and 15b, respectively, and these shafts come into contact with one side surface of the swivel arms 4a and 4b. . Further, self-aligning type bearings 19a, 19b are provided at the lower ends of the rotary cylinders 15a, 15b, and a plurality of (four in a cross shape in the figure) swivel arms 4a, 4b are attached through the bearings. The trowels 20a and 20b are swingably attached to the ends of the swivel arms 4a and 4b.

Bevel gears 21a and 21b are fixed to the intermediate portions in the vertical direction of the rotary cylinders 15a and 15b, and bevel gears 22a and 22b that mesh with these left and right bevel gears are inserted into a cylindrical body 23 of a rotary shaft 24. The rotary cylinders 15a and 15b are fixed to the shaft ends of the shafts so that the rotary cylinders 15a and 15b are interlocked with each other as rotations in opposite directions.

A linear motor 25 is mounted on the machine body 2, a screw shaft 26 rotated by the motor 25 is screwed into a screw hole formed in the machine body 2, and a plate 27 is provided at a lower end of the screw shaft 26. Is stuck. A shaft 29 having a plate 28 is pivotally attached to the cylindrical body 23 at a position corresponding to this, and a load sensor 31 is attached to a cylindrical member 30 fitted on the shaft 29 so as to be relatively slidable. The load sensor 31 is pressed against the plate body 27 of the screw shaft 26 by the compression spring 32 interposed between the plate body 28 and the tubular member 30.

Next, the ring-shaped bodies 33a, 33b attached to the swivel arms 4a, 4b of the concrete floor finishing apparatus 1 have, as shown in FIGS. 3b each have an opening 34 into which it can be fitted, and the outer shape thereof is a circle (FIG. 4), a quadrangle (FIG. 6), a substantially star shape (FIG. 8), and the like. It has a hook-shaped engaging portion 35 with which one side edge of 20a, 20b can be engaged.

When the annular bodies 33a and 33b are circular, when the irons 20a and 20b are attached to the lower ends of the left and right turning arms 4a and 4b as shown in FIG. 3, the left and right annular bodies 33a and 33b are attached. The outer circumference has an outer diameter that is placed as close to each other as shown in FIG.

When the annular bodies 33a and 33b are rectangular, as shown in FIG. 6, the apex portion a of one annular body 33a faces the side portion b of the other annular body 33b as closely as possible. ° Can be mounted with a phase shift.

When the annular bodies 33 a and 33 b are star-shaped, the outer shape thereof is four protrusions 36, 36 ... With a cycloidal curve, and a recess 37 that can be fitted between the protrusions 36, 36. , 37 ... Are formed, and the protrusions 36 and the recesses 37 are attached in such a manner that they are intertwined with each other.

In the figure, 38 is a guard frame, and 39 is a cover that covers the drive unit.

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

After concrete is poured on the floor, the concrete finishing device 1 is carried in on the semi-solidified concrete floor by using a crane or the like. At this time, the annular bodies 33a and 33b are placed on the concrete floor, and the finishing device 1 is hung on the annular bodies 33a and 33b so that the irons 20a and 20b are placed on the upper surfaces of the annular bodies 33a and 33b.

When the revolving arms 4a and 4b are slightly revolved in this manner, one side edge of the irons 20a and 20b engages with the engaging portions 35 and 35, and the revolving arms 4a and 4b pivot to form the annular bodies 33a and 33b. Will be able to turn together. Then, when the finishing device 1 is lowered, the traveling bodies 3a and 3b of the finishing device 1 are fitted into the openings 34 and 34 of the annular bodies 33a and 33b, and the lower portions of the traveling bodies 3a and 3b are on the concrete floor surface. Ground to.

Then, by activating the built-in motors of the traveling bodies 3a, 3b, the finishing device 1 advances upward in FIG. At the same time, when the motors 9a and 9b are started, the rotary cylinders 15a and 15b are mutually moved through the pins 14a and 14b of the pulleys 12a and 12b as the pulleys 11a and 11b, the belts 13a and 13b, and the pulleys 12a and 12b rotate. Rotating in the opposite direction, the shafts 17a, 17b of the brackets 18a, 18b provided on the rotary cylinders 15a, 15b contact one side surface of the swivel arms 4a, 4b, so that the swivel arms 4a, 4b have arrows. Rotate in the A and B directions. As a result, the ring-shaped bodies 33a and 33b also rotate in the A and B directions, and the lower surfaces of the ring-shaped bodies 33a and 33b proceed while rubbing the concrete floor, whereby the work of "slagging" in the concrete is performed.

In this case, since the annular bodies 33a and 33b have a large ground contact area and are continuous in the rotation direction, they do not settle down due to the weight of the finishing device 1 and a good “slide” is performed.

When the “sliding out” work is completed, if the finishing device 1 is slightly lifted and rotated in the direction opposite to that at the time of mounting, the irons 20a, 20b are disengaged from the locking portions 35, 35, and the annular body 33a, 33a can be removed.

After the annular bodies 33a and 33b have been removed and the required time has elapsed, the hardening of the concrete has progressed, and the work proceeds to the finishing work using the trowels 20a and 20b to finish the concrete floor surface.

If the quadrangular members shown in FIGS. 5 and 6 are used as the annular members 33a and 33b, the rubbing surfaces of the left and right annular members 33a and 33b partially overlap each other, so that an effective “roll-out” is achieved. If the star-shaped annular bodies 33a and 33b shown in FIGS. 7 and 8 are used, the lap area is further increased, and the "roll-out" can be more favorably performed.

During the finishing operation, the load sensor 31 detects the reaction force acting on the finishing device 1, the linear motor 25 rotates according to the detected value, and the ground pressure of the irons 20a and 20b is controlled to the optimum value. To be done. When changing the direction, the linear motor 25 is rotated to lift the traveling bodies 3a and 3b, and in this state, the clutches 8a and 8b are disengaged and the motors 9a and 9b are rotated to rotate the motors 9a and 3b. 9b revolves around the shaft cylinders 7a and 7b together with the shaft cylinders 7a and 7b, thereby changing the directions of the traveling bodies 3a and 3b.

[0030]

[Effect of device]

 As described above, according to the present invention, the concrete floor finishing device can be used to perform the "slopping out" work of raising the gel-like portion of the concrete to the surface in the latter half of the concrete pouring. Therefore, it is possible to automatically perform the "rolling out" that has conventionally relied on manual labor. In addition, since it uses an annular body, it has a larger ground contact area than this and is continuous in the circumferential direction. be able to.

When the trowel has a trowel at the tip of the revolving arm as described in the second aspect, it is possible to easily and swiftly switch between the “sliding-out” work and the finishing work, thereby further improving the work efficiency. Further, according to the annular body of claims 3 and 4, since the left and right annular bodies can be rotated by wrapping each other, the work is not left unfinished, and the "slot removal" work can be efficiently performed. .

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a concrete floor finishing apparatus according to the present invention.

FIG. 2 is a front view showing the internal structure of FIG. 1 in which the position of the motor is changed and a half section is shown in section.

FIG. 3 is a plan view showing a state in which an annular body is attached to the finishing device shown in FIG.

FIG. 4 is a plan view showing the positional relationship between the left and right annular bodies in FIG.

5 is a plan view showing a state in which another annular member is attached to the finishing device shown in FIG.

6 is a plan view showing the positional relationship between the left and right annular bodies in FIG.

FIG. 7 is a plan view showing a state in which a further annular member is attached to the finishing device of FIG.

8 is a plan view showing the positional relationship between the left and right annular bodies in FIG.

FIG. 9 is an explanatory view showing an example of a mounting structure of an annular body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete finishing device 2 Airframe 3a, 3b Running body 4a, 4b Revolving arm 7a, 7b Shaft cylinder 9a, 9b Motor 10a, 10b Gear case 15a, 15b Rotation cylinder 20a, 20b Iron 24 Rotation shaft 25 Linear motor 31 Load sensor 33a, 33b Annular body 34 Opening 35 Locking part 36 Projection 37 Recess

Claims (4)

[Scope of utility model registration request] 1. A pair of left and right running bodies supported by the body for self-propelled on the floor, a plurality of swing arms supported by the body to rotate the surroundings of these running bodies, and a group of these left and right swing arms. Concrete floor finish, comprising: an annular body detachably attached to the tip of the movable body and having an opening at the center into which the traveling body can be fitted; and a drive means for rotationally driving the traveling body and the swing arm. apparatus. 2. The concrete floor finishing apparatus according to claim 1, wherein the turning arm has a trowel at a tip thereof, and the annular body is attachable to and detachable from the trowel. 3. The annular body has a square outer shape,
The concrete floor finishing apparatus according to claim 1 or 2, wherein the apex and the side of the concrete floor finishing apparatus are mounted so as to face each other. 4. The annular body has an outer shape having an outer shape having a plurality of projecting portions according to a cycloid curve, and is mounted so that the projecting portions and the recesses between the projecting portions are intricately engaged with each other. Item 1. The concrete floor finishing apparatus according to Item 1 or 2.