KR20210025190A - Surface Grinding Equipment for Ships - Google Patents

Abstract

An objective of the present invention is to overlap rotating areas of grinding means of a pair of rotating bodies when the rotating bodies rotate to remove spaces which are not ground. A surface grinding apparatus for a ship comprises: a grinding body having a space with an opened lower portion therein; a vacuum means which receives power controlled by a control means for controlling power of a power supply unit to generate a vacuum suction force to vacuum-suck air of the space of the grinding body to pump the air to the outside; a grinding means having a rotating body installed to idle in the space of the grinding body, and a grinding body which is attached to and detached from the lower surface of the rotating body and grinds the surface of a ship; a power means having a rotating motor to receive power controlled by the control means to generate torque, and a power transfer member to transfer torque generated by the rotating motor to the rotating body to rotate the rotating body; a handle post having a length with a handle formed on the upper end thereof to be held by a hand of a user, wherein one end thereof is connected to and fixed on a portion of the grinding body; an operating means which is provided on the handle post and applies an operating signal to the control means; and a moving wheel provided on one side of the grinding body to be rotatable. Two rotating bodies form a set. The rotating bodies are arranged while the center axes of the rotating bodies have a gap therebetween. The power transfer member rotates the pair of the rotating bodies in opposite directions.

Description

Surface Grinding Equipment for Ships

The present invention relates to a surface polishing apparatus of a ship to polish the surface by pretreatment of the painting work on the surface of the ship, and more particularly, to a pair of polishing means to polish the surface of the ship on the bottom surface. The present invention relates to a surface polishing apparatus for a ship to maximize polishing quality by removing unpolished spaces by overlapping the rotational areas of each polishing means when rotating the rotating bodies.

In general, a ship performs a painting process in which a paint of a certain thickness is applied to the surface every set unit time as a part of prolonging the life by preventing corrosion due to salt when used for a long time.

At this time, in order to apply the paint to the surface of the ship stably and uniformly, the painting work is performed after a surface treatment process in which foreign substances or impurities (brass) adhered to the surface of the ship are removed and the roughness is adjusted.

In order to perform such a surface treatment process of a ship, conventionally, the surface of the ship was polished one by one while an operator held a grinder operated by air supply by hand to remove impurities, and then a paint was applied.

However, the conventional surface treatment process of such a ship took a long time and not only greatly reduced work efficiency and productivity, but also exposed workers to musculoskeletal diseases, environmental pollution by paint dust, and paint dust during work. There were problems such as exposure to industrial accidents.

In addition, since the surface of the ship is not uniformly polished, there is a problem that the painting work to be carried out in the future is not properly performed, resulting in a painting defect phenomenon in which the paint is peeled off after a period of time, resulting in a problem in that maintenance costs are used; There is a problem in that safety accidents such as injuries to workers frequently occur due to the rotating blade of the grinder rotating at high speed.

In addition, there has been a health and hygiene problem that causes respiratory diseases of workers due to the removed foreign matter or dust.

Accordingly, in recent years, various polishing apparatuses have been proposed to solve the problems of the surface polishing operation of the ship according to the manual operation by the operator as described above.

As one of them, there is Patent Registration No. 10-1347597 (Name: Air Polishing Device for Ships), filed by the present applicant and registered as a patent, and as known in the publication, it is provided in a cylindrical shape with a certain diameter with an open lower part. And, a plurality of brushes are planted on the bottom edge, coupling rods having a predetermined length are installed to protrude on both upper sides, a connecting rod is installed between the coupling rods, and one end of the discharge pipe is installed in communication with the upper one side; A rotating body installed in the upper center of the body and rotating the rotating shaft by high-pressure air supplied from the outside through a supply hose; A rotating blade installed on the rotating shaft of the rotating body and rotating to polish the surface of the ship; A pair of wheels installed to be adjustable in height to the coupling rod of the body to support the body; A handle provided in the form of a pipe having one end fixed to the connecting rod of the body and integrally formed with a connection port so that the other end of the discharge hose connected to the upper end of the discharge pipe of the body can be connected; An air polishing apparatus for ships including a collecting net installed at the other end of the handle and discharged and collected by foreign matter or dust removed by the rotating blade is discharged through the discharge pipe of the body, the discharge hose, and the handle.

In addition, in Patent Registration No. 10-1573784 filed by the present applicant and registered for a patent (name: vibration type polishing apparatus for ships), as known in the publication, it is provided in the form of a rectangular parallelepiped with an open lower part, and has a predetermined shape on the bottom surface. Foreign substances are sucked into the vacuum part of a predetermined space formed by the partition wall, and a discharge pipe through which foreign substances are discharged by communicating with the vacuum part is formed to protrude from the rear surface, and each fastening hole is provided in the upper corner, and movement is convenient at the rear. A body equipped with a pair of wheels so as to be; A drive motor installed on the upper part of the main body to generate rotational power by an external power source; An eccentric rotation unit installed inside the vacuum unit formed on the bottom surface of the main body to rotate by receiving the rotational power of the driving motor to suck foreign substances into the vacuum unit; It is integrally mounted on the bottom of the partition wall of the main body by a plurality of fastening means, and a suction hole having a predetermined diameter is formed in the center so that foreign matter sucked by the eccentric rotation unit through the suction hole can be introduced into the vacuum unit. A vacuum cover; A polishing unit that is rotated eccentrically by the eccentric rotation unit to polish the surface of the ship; A connecting portion respectively installed at a corner portion of the main body so as to connect the polishing portion with the main body; A handle part for fixing one end of the extension provided in the form of a predetermined length and pipe to the rear of the main body, and integrally forming a grip on the other end of the extension so as to change the direction of travel of the main body; Including a vibration type polishing device for ships is described.

Patent Registration No. 10-1347597 Patent registration number 10-1573784

However, in the conventional ship polishing devices as described above, the entire polishing device moves in the rotational direction due to the frictional force generated when the rotating blade rotates at high speed by high-pressure air polishing the surface of the ship. There are problems that it is very difficult to carry out a long grinding operation because the worker's fatigue increases rapidly because it has to always put a great effort into it.

As a result, there were problems with high risk of safety accidents occurring.

The present invention has been proposed in order to solve the conventional problems as described above, and an object of the present invention is each polishing means when rotating a pair of rotating bodies provided with a polishing means configured to polish the surface of a ship on the bottom surface. By removing the unpolished space by overlapping the rotating areas of the vessels, the polishing quality is maximized, the convenience of work is improved, and the occurrence of safety accidents is minimized, thereby providing a surface polishing apparatus for ships with improved safety.

The surface polishing apparatus of a ship according to the present invention for achieving the object of the present invention as described above includes a polishing body having a space portion with an open lower portion therein; A vacuum means configured to receive a controlled power through a control means for controlling the power supply of the power supply, generate a vacuum suction, and vacuum suction air in the space portion of the polishing body and pump it to the outside; A polishing means having a rotating body installed in the space portion of the polishing body so as to be capable of idling, and a polishing body detachably attached to the bottom of the rotating body and configured to polish the surface of the ship on the bottom surface; A power means having a rotation motor configured to generate a rotational force by receiving power controlled through the control means, and a power transmission member configured to rotate by transmitting the rotational force generated through the rotational motor to the rotating body; A handrail having a length on which one end is connected and fixed on a part of the polishing body and on an upper end of which a handle is formed to be mounted by hand by a user; An operation means provided on the handrail and configured to apply an operation signal to the control means; In the surface polishing apparatus of a ship comprising; a moving wheel rotatably provided on one side of the polishing body; The rotating body is composed of two sets of one central axis disposed with a gap between each other in the space portion of the polishing body; The power transmission member is such that the rotational directions of the pair of rotating bodies rotate in opposite directions to each other, so that the frictional force of the surface of the ship with respect to the rotating bodies in the polishing body has a directionality in the opposite direction to each other, so that the frictional force generated is biased. It is characterized in that it is not possible.

The rotating bodies, the outer circumferential surface is made of a polygon; The polishing bodies may be positioned at the vertices of the rotating body to be disposed on the outer periphery of the rotating radius of the rotating body.

The rotating bodies are arranged so that the minimum outer diameter of one rotating body and the maximum outer diameter of the other rotating body face each other; It is characterized in that the rotational space ranges of the polishing body overlap each other while the outer circumferential surfaces do not collide with each other when the rotating bodies are rotated.

In the surface polishing apparatus of a ship according to the present invention made as described above, the rotating bodies rotate at high speed in opposite directions to each other, and the frictional forces formed on the ship surface by the polishing bodies cancel each other, so that the operator can easily operate it. It is not only improved, but also has the effect of improving productivity and preventing the occurrence of safety accidents.

In addition, by forming a shape in which foreign matters are concentrated on the space of the polishing body, the foreign matters are smoothly collected through the vacuum means to prevent environmental pollution and have the effect of promoting the hygiene of workers.

In addition, as the rotational area of each polishing means spatially overlaps when the pair of rotating bodies rotates, the unpolished surface space is removed, thereby maximizing the polishing quality.

1 is a schematic front view showing a surface polishing apparatus for a ship according to an embodiment of the present invention.
Figure 2 is a schematic side view showing the surface polishing apparatus of the ship according to the present embodiment.
3 is a schematic plan view showing a surface polishing apparatus of a ship according to the present embodiment.
Figure 4 is a schematic bottom view showing a polishing body constituting the surface polishing apparatus of the ship according to the present embodiment.
5 to 9 are schematic illustrations showing a polishing means constituting the surface polishing apparatus of a ship according to the present embodiment.
10 is a schematic illustration showing a control state of the surface polishing apparatus of a ship according to the present embodiment.

Hereinafter, with reference to the accompanying drawings, a detailed description of a surface polishing apparatus for a ship according to a preferred embodiment of the present invention is as follows.

The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those with average knowledge in the art. Accordingly, the shape of the element in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same member may be indicated by the same reference numeral. Detailed descriptions of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

1 to 10 are views showing a surface polishing apparatus 1 of a ship according to an embodiment of the present invention, and the surface polishing apparatus 1 of a ship according to the present embodiment has an open lower part therein. A polishing body 2 provided with a space portion; A handrail (3) having a length on which one end is connected and fixed on a part of the polishing body (2) and a handle (31) is formed on the upper end of the polishing body (2); It comprises a; moving wheel (4) rotatably provided on one side of the polishing body (2).

That is, after the user attaches the handle 31 provided on the upper end of the handrail 3 by hand, the bottom surface of the polishing body 2 is separated from the bottom surface with the moving wheel 4 as an axis. After that, as it is operated in a desired direction, the polishing body 2 is operated in the working space with a small force.

At this time, the bottom surface of the polishing body 2 is kept open to the bottom surface.

In the above, the polishing body 2 may be made of a'cylindrical body' opened on the bottom surface; The movable wheel 4 may be formed in a pair of two provided to be idle in a'connection frame' extending outwardly on the rear surface of the polishing body 2.

On the other hand, the moving wheel 4 transmits the rotational force generated by the moving motor 41 configured to generate rotational force by receiving the controlled power through the control means 6 configured to control the power of the power supply unit 5 It is also possible to receive and drive through electric, preferably applied according to the user's choice.

At this time, the driving unit that travels in close contact with the surface of the ship by the moving wheel 4 has a'magnetic force' and is magnetically coupled to the ship surface to prevent unauthorized separation, thereby realizing the stability of work. It is preferable to apply according to the choice of.

In the above, the handrail 3 may be made to be freely adjustable in length; The adjustment structure of the handrail 3 may be made of a structure to which a conventionally known technique is applied, and is preferably applied according to a user's selection.

The surface polishing apparatus 1 of the ship according to this embodiment receives the controlled power through the control means 6 to control the power of the power supply unit 5 and generates a vacuum suction to generate the polishing body 2 It has a; vacuum means 7 configured to vacuum the air in the space of) and pump it to the outside.

That is, by stably collecting foreign substances remaining in the polishing body 2 through the vacuum means 7 to prevent unauthorized scattering of various foreign substances generated during the polishing operation, it is possible to prevent environmental pollution and promote the health and hygiene of workers. do.

In the above, the vacuum means (7) includes a vacuum pump (71) configured to generate a vacuum suction input by receiving power controlled through the control means (6); An intake pipe (not shown) that spatially connects the intake port of the vacuum pump 71 and the space portion of the polishing body 2, and is preferably applied according to a user's selection.

The surface polishing apparatus 1 of the ship according to the present embodiment made as described above includes a rotating body 81 provided to be idle in the space portion of the polishing body 2, and detachable from the bottom surface of the rotating body 81. And a polishing means (8) having a polishing body (82) adapted to polish the surface of the ship on the bottom surface; A rotating motor 91 configured to generate a rotating force by receiving power controlled through the control means 6, and a rotating force generated through the rotating motor 91 are transmitted to the rotating body 81 to rotate. A power means (9) having a power transmission member adapted to; It further comprises an operation means 61 provided on the handrail 3 and configured to apply an operation signal to the control means 6.

That is, when an operator applies an operation signal to the control means 6 through the operation means 61, the rotary motor 91 of the power means 9 is controlled by the control means 6 Is applied to generate a rotational force; The rotating body 81 is transmitted through the power transmission member for the rotational force generated by the rotating motor 91 to rotate on the space portion of the polishing body 2.

Accordingly, the polishing body 82 provided on the bottom of the rotating body 81 rubs against the surface of the ship while rotating, and the surface of the ship is polished by the generated frictional force.

In the above, the handle holder 3 is composed of a'bar body' that is bound while having a length in the upper direction from the rear upper end of the polishing body 2 and is provided with the handle 31 having a length in the horizontal direction at the upper end. It can be formed in a T'shape; The manipulation means 61 is provided on one side so that the operator can stably manipulate the manipulation signal, and is preferably applied according to the user's selection.

In the surface polishing apparatus 1 of the ship according to the present embodiment made as described above, the rotating body 81 is, in the space portion of the polishing body 2, two central axes are disposed with a space between each other. It consists of one set.

That is, a pair of the rotating bodies 81 each receive power through the power means 9 and rotate respectively to polish the surface of the ship for each rotation range.

Accordingly, the polishing work area of the ship is efficiently increased, thereby improving the polishing work efficiency.

Meanwhile, the power transmission member is formed so that the rotation directions of the pair of rotation bodies 81 rotate in opposite directions to each other.

That is, through the power transmission member, the frictional forces of the surface of the ship with respect to the rotating bodies 81 in the polishing body 2 are oriented in opposite directions, so that the frictional force generated is not biased.

Accordingly, the rotating bodies 81 rotate at high speed in opposite directions to each other, and the friction forces formed on the surface of the ship by the abrasive bodies 82 cancel each other, so that the operator can easily operate, thereby improving workability. , Improves productivity, and prevents safety accidents.

In addition, as the rotational areas of each of the polishing bodies 82 are spatially overlapped when the pair of rotation bodies 81 are rotated, the polishing quality is maximized by removing the unpolished space.

In the above, the power transmission member includes a movable gear 93 coupled to a power rotation shaft 92 configured to rotate through a rotational force generated by the rotation motor 91 to rotate in the same direction; It comprises; each driven gear (94) coupled to the central axis of the rotating body (81) to rotate in the same direction; The movable gear 93 is gear-coupled with a driven gear 94 coupled to one of the rotating bodies 81 to transmit rotational force; The other driven gear 94 to which the other rotating body 81 is coupled is gear-coupled with the connecting gear 95 that is geared to the movable gear 93 to receive the rotational force.

Accordingly, the pair of driven gears 94 are rotated in different directions, so that the rotational directions of the rotating bodies 81 form a reverse direction.

In the above, the coupling gear 95 has the same gear ratio with the movable gear 93, so that the rotational force transmitted to the driven gear 94 is matched.

In the surface polishing apparatus 1 of the ship according to the present embodiment made as described above, the rotating bodies 81 are made of polygonal outer circumferential surfaces; The polishing bodies 82 may be positioned at the apex portion of the rotating body so as to be disposed on the outer periphery of the rotation radius of the rotating body 81.

That is, since the polishing bodies 82 have a maximum rotation radius in the rotation radius of the rotation body 81, the polishing area on the space portion of the polishing body 2 is maximized.

On the other hand, the rotating bodies 81 are arranged so that the minimum outer diameter of one rotating body 81 and the maximum outer diameter of the other rotating body 81 face each other; When the rotating bodies 81 are rotated, the rotational space ranges of the grinding bodies 82 may overlap without colliding with each other.

In the above, the rotating body 81 may be made of a hexagonal'plate body' having three long sides and three short sides; The polishing bodies may be provided on the short side.

At this time, the long sides form a'concave' arc curved in the center direction; The short sides may be formed while forming a'convex' arc curved in an outward direction.

In the surface polishing apparatus 1 of the ship according to the present embodiment made as described above, the rotating motor 91 is made of a'BLDD motor' and is compact and light, so that it is very easy to move to a narrow work space or a wide area. Can be made to be able to carry lightly.

In addition, the existing motors are brush motors, and the risk of explosion remains made of pyroxene of paint, but the'brushless motor (BLDD motor)' does not generate a spark, so there is no risk of explosion due to explosion-proof, so safety is secured.

In the surface polishing apparatus 1 of the ship according to the present embodiment made as described above, the polishing means 8 elastically presses the polishing body 82 while having an elastic force downward from the rotation body 81. It may be made by further including a pressing body (83).

That is, even if the polishing body 82 is elastically pressed toward the surface of the ship by the pressing body 83, even if there is a curved portion on the surface of the ship, the polishing is uniformly contacted so that the polishing is performed stably.

On the other hand, the polishing body 82 is a polishing piece made of a'plate body' in the shape of a'plate' that has a plurality of polishing protrusions 84 formed on the bottom surface and pressed by the pressing body 83 ( 85) and; A pair of guide pieces 87 which are bent and extended from the polishing piece 85 in the direction of the rotating body 81 and guided while passing through the guide hole 86 formed in the rotating body 81; Each of the pair of guide pieces 87 is bent in an outward direction and is supported on the upper surface of the rotating body 81, so that the polishing body 82 is steplessly separated from the guide hole 86. It includes a pair of supports 88 to be prevented.

That is, the polishing body 82 stably elastically moves on the rotating body 81 to form a uniform contact with the ship surface, so that the polishing operation is stably performed.

One embodiment of the present invention described above is merely exemplary, and those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications and other equivalent embodiments are possible. . Therefore, it will be appreciated that the present invention is not limited to the form mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. In addition, the present invention is to be understood as including the spirit of the present invention as defined by the appended claims and all modifications, equivalents and substitutes within the scope thereof.

1: polishing device 2: polishing body
3: handrail 31: handrail
4: moving wheel 41: moving motor
5: power supply unit 6: control means
61: operation means 7: vacuum means
71: vacuum pump 8: polishing means
81: rotating body 82: polishing body
83: pressing body 84: grinding protrusion
85: polishing piece 86: guide hole
87: guide 88: support
9: power means 91: rotary motor
92: power rotation shaft 93: movable gear
94: driven gear 95: connecting gear

Claims (3)

A polishing body having an open space portion therein; A vacuum means configured to receive a controlled power through a control means configured to control a power supply of the power supply and generate a vacuum suction, thereby vacuuming the air in the space portion of the polishing body and pumping it to the outside; A polishing means having a rotating body installed in the space portion of the polishing body so as to be capable of idling, and a polishing body detachably attached to the bottom of the rotating body and configured to polish the surface of the ship on the bottom surface; A power means having a rotation motor configured to generate a rotational force by receiving power controlled by the control means, and a power transmission member configured to rotate by transmitting the rotational force generated through the rotational motor to the rotating body; A handrail having a length on which one end is connected and fixed on a part of the polishing body and on an upper end of which a handle is formed to be mounted by hand; An operation means provided on the handrail and configured to apply an operation signal to the control means; In the surface polishing apparatus of a ship comprising; a moving wheel rotatably provided on one side of the polishing body;
The rotating body,
Consisting of two sets in which the central axes of the polishing body are spaced apart from each other;
The power transmission member,
It is characterized in that the rotational directions of the pair of rotating bodies are rotated in opposite directions to each other, so that the frictional force of the surface of the ship with respect to the rotating bodies in the polishing body has a directionality in the opposite direction to each other, so that the frictional force generated is not biased. The surface polishing device of the ship.
The method of claim 1;
The rotating bodies,
The outer peripheral surface is made of a polygon;
The surface polishing apparatus of a ship, characterized in that the polishing bodies are positioned at the vertices of the rotating body to be disposed on the outer periphery of the rotating radius of the rotating body.
The method of claim 2;
The rotating bodies,
The minimum outer diameter of the one rotating body and the maximum outer diameter of the other rotating body are arranged to face each other;
The surface polishing apparatus of a ship, characterized in that the rotational space ranges of the polishing bodies overlap each other while the outer circumferential surfaces do not collide with each other when the rotating bodies are rotated.

Images