JPH0823208B2 - Engine-driven concrete floor finishing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a concrete floor surface finish for evenly finishing an uncured floor surface after placing concrete, or a concrete surface after curing and hardening with a grindstone or a brush. A concrete floor finishing machine used for cleaning and performing laitance treatment by polishing, and in particular, an engine configured to perform remote control of the traveling control of the machine body that is self-propelled via traveling rollers and the rotational drive control of rotating parts. The present invention relates to a drive type concrete floor finishing machine.

[Prior Art] Conventionally, a so-called monolithic finish that directly and evenly finishes an uncured floor surface after placing concrete, or a concrete surface after curing and curing is subjected to polishing and laitance treatment using a grindstone, a brush, or the like. As a concrete floor finishing machine, one equipped with an electric motor as a drive source for the rotating part is known, and an electric power is supplied from an externally installed power source to the electric motor driven concrete floor finishing machine through a power supply cable. Are to be supplied.

[Problems to be Solved by the Invention] In the above-mentioned conventional concrete floor finishing machine, it is necessary to attach and detach the feeding cable pulled from the power source before and after construction, and at the time of the work, a messenger wire or a cable reel. Not only is the finishing work complicated, but the power supply cable that is routed on the floor during the finishing work tends to induce roughness on the finished surface, and the power supply cable cuts the power supply cable by the rotating part. In addition to this, there are various problems in practical use, such as the fact that floor finishing work cannot be performed in a place where a power source cannot be obtained.

In view of the above-mentioned conventional problems, the present invention can improve finishing accuracy by a rotating piece that revolves while revolving around an engine as a drive source. Therefore, the starting, stopping and rotating speed of the rotating piece can be improved. Engine driven concrete floor finishing machine that can control the driving of the machine body including control, smoothly and accurately by remote control together with the traveling control of the self-propelled aircraft and improve the efficiency of floor finishing work. Is to provide.

[Means for Solving Problems] In order to solve the problems, a technical means adopted by the present invention is that a plurality of support arms are conformally radially arranged on a central shaft vertically installed at a central position of a body of a machine body. A traveling motor that is drive-controlled separately is installed in each of a pair of traveling rollers that are loosely fitted to a sleeve mounted on the lower end of the central shaft, and the body of the machine can be self-propelled. A plurality of rotatable rotating pieces are attached to the tip of each supporting frame in a conformal radial pattern, and the rotating pieces rotating in the same direction revolve around the central axis in the same direction. At the same time, an engine with a starter motor that rotationally drives each of the rotating parts, an electric cylinder that controls the number of revolutions of the engine, a generator that is attached to the engine, and a running control device that includes a receiver and an engine starter. For Batteries,
Provided between adjacent support frames respectively, when starting the engine, power is supplied from the battery to the traveling control device, and after starting the engine by remote control from the transmitter via the traveling control device, It is characterized in that the generator of the self-propelled machine body self-supplies the electric power supplied to the traveling control device.

[Operation] Therefore, according to the present invention, in the concrete floor surface finishing work, after the battery of the machine body is turned on, the start and stop of the engine, the rotation control of the rotating part and the traveling control of the machine body are performed. It can be easily performed by remote control via a transmitter, and a power supply, a power supply cable, etc. are unnecessary, and smooth floor finishing work can be quickly performed.

[Embodiment] The configuration of the present invention will be described in detail below based on an illustrated embodiment.

In FIG. 1 and FIG. 2, 1 is a concrete floor finishing machine, and this concrete floor finishing machine 1 has three rotary irons 3 rotatably mounted on a machine frame 2 having traveling means. It will be.

The machine frame 2 is assembled in a cage shape by a frame material, and a center shaft 4 is fixed downward at the center thereof, and is attached to the center shaft 4 radially through a sleeve 4 ′ at an angle of 120 degrees. A rotary iron 3 as a rotary piece is supported downward on each of the supported arms 6, and a pair of left and right traveling rollers 7 as traveling means are attached to the lower end of the central shaft 4.

The sleeve 4 ′ is located between the support arms 6 and has a gasoline engine 8 with a starter motor and a generator 9
The control panel 10 and the control panel 10 are mounted via the support frame.

The gasoline engine 8 and the rotary irons 3 are interlockingly connected to each other through the input-side universal joint 11 and the gearbox 12 by the output-side universal joint 13 of the gearbox. A speed reducer with a V pulley and a V belt between
14 are installed.

On the other hand, FIG. 3 shows the concrete floor finishing machine 1 described above.
The block diagram shows the circuit configuration of the traveling control device incorporated in the control panel 10 of FIG.

That is, 20 is a CPU, the receiver 16 and the touch sensor 18 are connected to its input IN, and its output OUT is connected to the starter motor 2 of the gasoline engine 8.
1, the electric cylinder 15, the direction indicator lamp 19 and the left and right traveling motors 22 and 23 for driving the pair of left and right traveling rollers 7 are connected through predetermined relay contacts, respectively, and the CP
Motor controllers 24 and 25 are interposed between the U20 and the left and right traveling motors 22 and 32 via a D / A converter.

The direction indicator lamp 19 is connected to the other end of the relay contact whose one end is connected to the generator 9, and displays the traveling direction lamp by opening and closing the relay contact with a contact control signal from the output section OUT. .

The generator 9 is interlocked with the gasoline engine 8, and when the gasoline engine 8 is started by the starter motor 21 connected to the battery 26, the generator 9 is rotated in conjunction with the rotational drive of the engine 8. However, the generated power is supplied to the traveling control device.

Reference numeral 28 is a transmitter for remotely operating the concrete floor finishing machine 1, and a radio control signal transmitted from the transmitter 28 is an antenna of the receiver 16 installed in the traveling control device.
At 17, the CPU 20 performs various control operations.

Incidentally, 27 is a throttle lever for adjusting the rotation speed of the gasoline engine 8, the throttle lever 27 is configured to interlock with the expansion and contraction operation of the electric cylinder 15, and the touch sensor 18 is a concrete floor surface finish. When the machine 1 comes into contact with any object during traveling, it sends an object detection signal to the CPU 20, and the concrete floor finishing machine 1 is automatically retracted through the CPU 20 by a certain distance and travels at the retracted position. Is the one to stop.

When the concrete floor finishing machine 1 is operated in the above configuration, when a start switch (not shown) provided in the concrete floor finishing machine 1 main body is turned on, the vehicle runs from the battery 26 before starting the gasoline engine 8. Power is supplied to the driving control device, and the traveling control device is held in a standby state in which remote control from the transmitter 28 is possible.

Then, when a radio signal for starting the engine is transmitted from the transmitter 28, as shown in FIG. 3, the "START" relay contact equipped in the traveling control device is closed, and the power from the battery 26 is discharged. The gasoline engine 8 starts rotationally driven by the supplied starter motor 21, and the rotary iron 3 also starts rotationally driven by the rotational driving force. Also,
When the generator 9 attached to the gasoline engine 8 also starts to rotate, the power supply to the traveling control device is switched from the battery 26 to the generator 9.

The concrete floor finishing machine 1 which is maintained in the operating state as described above performs start / stop control for the gasoline engine 8 by the wireless control signal from the transmitter 28, and similarly, by the wireless control signal from the transmitter 28. By controlling the expansion / contraction of the electric cylinder 15, the throttle lever 27 is changed to increase / decrease the rotational speed of the rotary iron 3.

In the traveling direction of the concrete floor finishing machine 1, the CPU 20 receives a wireless control signal from the transmitter 28 to control the motor controllers 24 and 25, and the left and right traveling motors 22 and 23 are driven.
And the concrete floor finishing machine 1 comes into contact with an object during traveling, the touch sensor 18 transmits an object detection signal to the CPU 20, and the CPU 20 The concrete floor finishing machine 1 is automatically retracted by a predetermined distance via the, and the traveling is stopped at the retracted position.

When the traveling direction of the concrete floor finishing machine 1 changes as described above, an intermittent contact signal is sent from the output section OUT to the direction indicator lamp 19 to display the traveling direction, and the traveling including the CPU 20 is performed. If any abnormality occurs in the control device for a vehicle, the direction indicator lamp 19 is operated to blink, and an alarm is issued to an operator who is remotely controlling the transmitter 28.

In addition, in this embodiment, the construction of the concrete floor surface finishing machine 1 using the rotary iron 3 is shown, but the present invention is not limited to this, and a grindstone or a brush is attached as a rotary piece instead of the rotary iron to drive the rotation. The floor surface finishing machine can be used as a polishing machine or a cleaning machine for laitance treatment or the like.

[Effects of the Invention] In short, according to the present invention, a sleeve having a plurality of support arms mounted equiangularly in a radial manner is loosely fitted to a central shaft vertically provided at a central position of a machine body, and a lower end of the central shaft is provided. A pair of fixedly mounted traveling rollers are internally equipped with traveling motors that are driven and controlled separately to enable the body of the machine to be self-propelled, while a plurality of rotatable rotating pieces are provided at the tip of each supporting frame. Is mounted in a uniform radial manner, each rotating part rotating in the same direction is configured to revolve in the same direction with the central axis as the center of rotation, and an engine with a starter motor for rotationally driving each rotating part. , An electric cylinder for controlling the number of revolutions of the engine, a generator provided for the engine, a traveling control device having a receiver, and an engine starting battery are provided between adjacent support frames, respectively. When the engine is started, power is supplied from the battery to the traveling control device, and after the engine is started by remote control from the transmitter via the traveling control device, the Since the electric power supplied to the drive control device is self-sufficient, even though the engine is used as a drive source for the concrete floor finishing machine,
The traveling control of the self-propelled machine body and the rotation control of the rotating piece can be smoothly and accurately performed by remote control.

Since the main body of the concrete floor finishing machine is equipped with a generator that generates electric power by the rotational driving force of the engine, while the floor finishing machine is in operation, it is possible to sufficiently supply power to the control system. It is possible to carry out a reliable floor surface finishing work by eliminating the unstable power state in the remote control operation.

Since the concrete floor finishing machine is operated remotely by the transceiver, it is possible to eliminate the troublesome preparation work such as attaching a power supply cable from an external power source as in the past, and the cable connected to the floor finishing machine. There is no problem that the finished surface of the uncured floor surface is roughened by drawing around, etc., and the traveling locus of the traveling roller is completely eliminated by each rotating part that revolves around the outer periphery of the traveling roller. Therefore, the floor finishing work can be quickly performed while maintaining the quality of the finished surface.

Not only can floor finishing work be performed smoothly even in places where a power source is not available, the floor finishing machine can be easily diverted to other uses by exchanging various rotating parts. The range can be expanded.

And the like, which are extremely useful new effects.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings are drawings showing an embodiment of the present invention, in which FIG. 1 is a partially omitted overall plan view, FIG. 2 is a vertical side view of the same, and FIG. 3 is a block diagram showing the circuit configuration of FIG. 1 ... Concrete floor finishing machine, 2 ... Machine frame, 3 ...
Rotating iron, 4 ... Central shaft, 4 '... Sleeve, 6 ... Support arm, 7 ... Running roller, 8 ... Gasoline engine, 9 ... Generator, 10 ... Control panel, 11 ... Input Side universal joint, 12 …… gearbox, 13 …… output side universal joint, 14 …… reducer, 15 …… electric cylinder, 16 …… receiver, 17 …… antenna, 18 …… touch sensor, 19 …… Direction indicator lamp, 20 …… CPU, 21 …… Cell motor, 22,23 …… Left and right traveling motor, 24,25 …… Motor controller, 26 …… Battery, 27 …… Throttle lever, 28 …… Transmitter.

Claims (1)

[Claims] 1. A pair of running rollers in which a sleeve having a plurality of support arms mounted equiangularly in a radial manner is loosely fitted to a central shaft vertically installed at a central position of a main body of the machine body, and fixed to a lower end of the central shaft. On the other hand, each of the driving motors that are separately driven and controlled is internally mounted to enable the body of the machine to be self-propelled, while a plurality of rotatable rotating pieces are attached to the tip of each of the supporting frames in a conformal radial manner. Each rotating part that rotates in the same direction,
An engine with a starter motor configured to revolve in the same direction with the central axis as the center of rotation and rotationally driving each rotating piece, an electric cylinder for controlling the number of rotations of the engine, and a power generation system attached to the engine. And a running control device including a receiver and a battery for starting the engine are respectively provided between adjacent support frames, and when the engine is started, electric power is supplied from the battery to the running control device to drive the running control device. After starting the engine by remote control from the transmitter via the control unit for the engine, the generator of the self-propelled machine body supplies the electric power to the control unit for the drive by itself. Type concrete floor finishing machine.