JPH0628603Y2 - Concrete floor polishing machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a polishing device that polishes irregularities on the surface of concrete to finish it on a flat concrete floor surface. The present invention relates to a concrete floor surface polishing apparatus that performs polishing by using a rotary grindstone and also performs shearing collection processing.

[Conventional technology]

Conventionally, the finishing work of a concrete floor surface has been what is called "monolithic" finishing immediately after placing concrete. As a result, in terms of construction, it has brought about an improvement in labor saving in sergeant construction. Furthermore, due to the rapid progress of mechanization of work, a floor finishing machine using a rotary trowel was introduced, and automation of operation was added, which achieved labor saving and improvement of work attitude of finishers for concrete that did not solidify yet. At the same time, labor management and automatic operation have been started, and many concrete floor finishing machines of this kind have been proposed. Here, when paying attention to the running work, the work of the rotary iron is mechanical, and there are many factors that are influenced by the properties of the concrete placing surface, and there are still no valid proposals regarding the flatness of the concrete floor surface. Has not been done.

On the other hand, a power type polishing machine called a polisher has been conventionally known for polishing for repairing unevenness of the surface of already hardened concrete, and a polisher is attached for partial repair of the concrete surface. The whetstone was used for polishing by the manual operation of the operator.

[Problems to be solved by the invention]

Since the conventional floor polishing machine is intended for a relatively small surface, many problems have been pointed out as follows.

That is, the work efficiency as a polishing machine is low, the construction speed is slow, it does not have a device for collecting the shear generated during polishing, so it needs to be treated separately, and the dust prevention measures during polishing are insufficient. Grinding work uses power, but since its travel is a hand-operated type, control of machine vibrations such as lateral runout is accompanied by fatigue, and when the machine becomes larger, its operation becomes hard labor. The mainstream is the electric type, and there are various points such as working while pulling around the power supply cables, etc., causes a decrease in work efficiency.

[Means for solving problems]

The present invention, in view of the current state of polishing work on concrete floors,
It was developed as a result of earnest research for the purpose of solving the above-mentioned problems, and the present applicant previously applied for a patent under the name of "engine-driven concrete floor finishing machine" (Japanese Patent Application No. 62- 923872, JP-A-63-2610
No. 63) The basic configuration of the floor finishing machine was modified to suit the polishing machine, the rotary iron part was configured as a grinder to polish the concrete surface, and this polishing machine was accompanied by a towed shear collection vehicle. The gist is that the slide processing is also performed at the same time. Then, in this polishing device, the rotary grindstone is driven by the engine to rotate about its own axis, and can revolve around a traveling device that is supplied with electric power from a power generator on an accompanying vehicle. An intake port connected to the cleaner is arranged, and a dustproof cover is stretched on the upper surface of the rotary grindstone and the intake port.

〔Example〕

A concrete floor polishing apparatus of the present invention will be described in detail with reference to the drawings of a preferred embodiment. FIG. 1 is a view of a polishing machine portion of a floor polishing apparatus of the present invention, FIG. 1 (a) is a partially cutaway top view thereof, and FIG. 1 (b) is a partially cutaway side view thereof.
FIG. 2 is a view of the accompanying vehicle portion, FIG. 2 (a) is a top view thereof, and FIG. 2 (b) is a side view thereof.

In both figures, the concrete floor polishing device PF of the present invention
Is a traction type in which two parts, a traveling type floor polishing machine 1 and a trailing vehicle 2 configured as a shear collection vehicle, are connected to each other in the front-rear direction. First, the floor surface polishing machine 1 has three rotating grindstones 20 rotatably supported on a machine frame 10, and a concrete floor surface F
Running up, polishing the irregularities of the hardened concrete by the rotation of the rotary grindstone 20 and the revolution in the direction of the arrow in FIG. 1,
Perform polishing finish for flattening. The machine frame 10 is a center support portion 11.
The four frame members 12 in the radial direction, which are assembled with each other in the radial direction, are assembled into a cage shape by concentric circular frame members 13 and 13. The frame member 12 has its tip tilted downward and lowered near the floor surface. One circular frame member 13 is supported. A center shaft 14 is fixed to the center support portion 11 downward, and three rotary grindstones 20 are supported outward through a slip ring 15, and a frame body 16 is fixed to a lower end of the rotation grindstone 20. As a pair, a pair of left and right traveling rollers 17 are rotatably supported,
Each has a built-in drive motor, and the traveling rollers 17 travel on the floor surface F.

Each rotary grindstone 20 is composed of a horizontal rotary plate 21 and a plurality of grindstones 22 attached to the lower surface of the rotary plate 21.
The support arm 35 is projected from the slip ring 15 so as to rotate horizontally on the floor surface F by a reduction gear 34 transmitted by a connecting rod 32 and a universal joint 33 thereof which are driven via a gear box 31 from It is supported below the tip. The floor polishing machine 1 uses the entire weight of the running roller 17 and the grindstone 2 of the rotary grindstone 20.
With the lower surface of 2, it is stably supported on the floor surface F,
The concrete surface is polished and finished by running and moving while rotating the rotary grindstone 20. Reference numeral 18 denotes a touch sensor for traveling control, which is provided on the outer circumference of the outer circular frame member 13. In this way, the structure of the floor polishing machine is a self-propelled floor finishing machine with the rotary iron part changed to a rotary grindstone, which makes it easy to manufacture as a series of construction machines. Not only is it compatible with each other. However, it goes without saying that the basic configuration of the floor polishing machine 1 of the present invention is not limited to the above.

Next, the shear collection vehicle 2 which is another main part of the present invention will be described. The shear collecting vehicle 2 includes a vacuum cleaner 50, a shear box 60 for accommodating the shear, and an engine generator 7 as a power generator.
0 is mounted on the upper surface of a bogie 80 having four wheels 81. The engine generator 70 supplies electric power to the entire electric equipment of the floor surface polishing apparatus PF.

The towing vehicle 2 as a shear collection vehicle is provided at the front end of the truck 80.
In order to connect the floor polishing machine 1 to the front and rear, one end of a bendable tow rod 82 is pivotally supported, and the other end is machine frame 10 along the frame material 12 of the floor polishing machine 1. It is rotatably supported at the lower end of a reinforcing member 19 extending to the center of the vehicle and is towed by a freely movable floor polishing machine 1 to form an accompanying vehicle.

Next, the intake system required for the vacuum cleaner 50 will be described. The vacuum cleaner 50 and the shear box 60 are suction hoses 51.
The same suction hose 61 is connected from the shear box 60 to the front side up to the header 62 supported on the machine frame 10 of the floor polishing machine 1 in the rear direction. Machine frame 10
A pipe branch box 63 of a swivel structure is axially supported below the slip ring 15 at the center of the header 6
In addition to supporting one inner end of 2, along with the arm 35 supporting the three rotary grindstones 20, the intake pipe 64
Are laid out radially. The intake pipe 64 is a rotary grindstone 2
It is bent substantially at a right angle from the vicinity of the center of 0, and further bent downward at a position beyond the outer circumference of the rotary grindstone 20.
An intake port 65 having a substantially inverted T shape is provided at the tip thereof, and the lower surface opening faces the floor surface F. The position of the intake port 65 is set to the rear side in the rotation advancing direction (arrow) when the rotary grindstone 20 revolves around the central axis 14.

The rotary grindstone 20 is driven by a gasoline engine 30, and is separately mounted on the frame 16 of the floor polishing machine 1 in the control panel 4
It is controlled by 0. The control panel 40 is preferably configured to be remotely operated by a control device (not shown).

On the surface above the working range of the rotary grindstone 20, the rotary grindstone 20
A dust-proof cover 90 is installed so as to confine dust generated at the time of the operation of. The dust-proof cover 90 includes a third horizontal circular frame member 91 provided at the height of a bending position of a vertical portion formed at the lower end of the frame member 12, a support rod 92 extending inward from this height position, and A support rod 93 extending outward from the central shaft 14 and a circular frame member 94 connecting them.
Is a film-like material that is stretched between these frame members, and is also provided between the circular frame member 91 and the outer circular frame member 13. Is stretched. However, in the horizontal portion of the dustproof cover 90, the rotating grindstone 2 is provided by the support frame materials described above.
The circular portion corresponding to the movement path of the vertical axis portion of 0 and the position of the traveling roller 17 are excluded.

The operation of the floor polishing apparatus of the present invention will be described based on its use and operation method. When the floor surface polishing apparatus PF is started by the control panel 40, the traveling rollers 17 are supplied with electric power to start traveling, and when the concrete surface is polished and finished by the rotary grindstone 20 accordingly, each rotary grindstone 20 is operated by the gasoline engine 30. While rotating around the central axis 14, the floor surface is polished in the advancing direction of the floor polishing machine 1 with a width of about 2 m. At this time, on the hardened concrete surface F, the protrusion of the concrete is ground and scraped off, and the dust scattered around the rotary grindstone 20 goes out of the dust cover 90 by the suction force of the vacuum cleaner 50. Without being sucked, the air is sucked in from the intake port 65 and sent to the dragged collection vehicle 2 to be collected in the scrap box 60 and collected. Power for these various operations is supplied from the engine generator 70 on the trailer vehicle 2.

[Effect of device]

The floor polishing device of the present invention comprises a polishing machine composed of a traveling device and a plurality of rotary grindstones, and a trailing vehicle towed by the polishing machine. The elements necessary for both the surface finishing machine and the polishing apparatus are configured on the polishing machine side, and elements specific to the polishing machine, such as the vacuum cleaner, are mounted on the trailer vehicle and pulled, so It is possible to solve all problems in the surface polishing machine. In particular, since the entire floor polishing device is equipped with the power generator, there is no need to bother with the feeding cable and work. Furthermore, the polishing of the floor surface with a rotary grindstone can be carried out fully automatically by operating the control panel or by remote control, ensuring construction accuracy equal to or better than that of the floor finishing machine, and reducing the labor of workers. It can be greatly reduced and freed from heavy labor. In addition, since the shear collection vehicle is towed as an accompanying vehicle, it is possible to effectively collect the shear at the same time as polishing, and the surrounding structure of the rotary grindstone is configured to be dust-proof, improving the working environment. In this respect, the present invention has a remarkable effect, and the present invention is a useful idea that greatly contributes to the construction industry.

[Brief description of drawings]

The drawing shows an embodiment of the floor polishing apparatus of the present invention, and FIG. 1 is a view of a polishing machine portion of the floor polishing apparatus of the present invention,
7A is a partially cutaway top view thereof, and FIG. 7B is a partially cutaway side view thereof. FIG. 2 is a diagram of the accompanying vehicle portion,
FIG. 3A is a top view thereof, and FIG. 1B is a side view thereof. 1 ... Floor polishing machine, 2 ... Accompanying vehicle, 10 ... Machine frame, 17
...... Running rollers, 20 …… Rotating whetstone, 30 …… Gasoline engine, 50 …… Vacuum cleaner, 60 …… Slip box,
61 ... Suction hose, 65 ... Intake port, 70 ... Engine generator, 80 ... Truck, 90 ... Dust cover, PF ...
… Floor polishing device, F… Floor

Claims (2)

[Scope of utility model registration request] 1. A concrete floor surface polishing apparatus comprising a polishing machine in which a traveling device and a plurality of rotary grindstones are incorporated in a machine frame, and an accompanying vehicle having a vacuum cleaner mounted on a carriage towed by the polishing machine, The rotating grindstone is driven by the engine to rotate on its axis, and can revolve around a traveling device that is supplied with power from a power generator on an accompanying vehicle.At the rear of the traveling direction of each rotating grindstone, an intake port connected to a vacuum cleaner is installed. A concrete floor polishing apparatus, which is arranged and has a dust-proof cover stretched over the surfaces above the rotary grindstone and the intake port. 2. A slip box is mounted on a bogie of an accompanying vehicle, the vacuum cleaner is connected to the shear box via a suction hose, and the shear box is attached to a central portion of a polishing machine via a suction hose. The concrete floor surface polishing apparatus according to claim 1, wherein the concrete floor surface is connected and further branched from this, and is connected to an intake port arranged at the rear of the rotational direction of each rotary grindstone.