JP2005211884A - Cleaning machine for steel tower - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning machine for a steel tower capable of cleaning a wide area of the steel tower surface in a shorter time by an automated cleaning operation instead of a manual operation. <P>SOLUTION: This cleaning machine 1 is provided with a frame 3 arranged at a circumference of the steel tower 2 capable of moving up and down, a fixing means 4 for fixing the frame 3 at a prescribed position in an outer peripheral surface of the steel tower 2, a scraping brush 6 fixed rotatably to the frame 3 via a rotating mechanism 5 in the circumference of the steel tower 2, and a driving means 7 for moving the frame 3 up and down in the direction to the steel tower 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a steel tower kelen machine used to remove deposits adhering to the surface of a steel tower, and more particularly to a steel tower kelen machine used before a communication tower paint treatment.

  In the communication tower, the surface is painted for the purpose of preventing rusting, but in order to improve the adhesion of the paint, cleansing work is performed to remove foreign matter such as rust, dust, oils and fats on the painted surface before painting. ing.

  As shown in Patent Document 1, this steel tower kelen work has been performed manually using a kelen apparatus. This kelen device is provided with a holding portion that is held by an operator on one end side of an insulating operation tube that can be expanded and contracted, and a driving portion on which a kelen brush is rotatably mounted on the other end side.

  In this keren device, a switch for rotating a motor provided in the drive unit is provided in the holding unit, and the keren brush provided in the drive unit is rotated by turning on the switch.

  The operator manually moves the insulating operation tube while rotating the keren brush to remove foreign substances adhering to the surface of the steel tower.

JP-A-7-155675

  However, the steel tower work is a work at a high place, and the above-described kelen apparatus is heavy, and there is a danger that the operator himself performs the kelen work with the heavy kelen apparatus.

  Further, since the cleansing operation is performed only with the cleansing brush provided at the tip of the insulating operation tube, when the cleansing area is large, the work capacity is limited by a limited number of workers, and the work time is also long.

  In view of the above problems, an object of the present invention is to provide a steel tower keren machine capable of automating the steel work on the surface of the steel tower, not a manual work, and performing a large area of water in a short time.

  The steel tower keren machine of the present invention includes a frame that is arranged on the outer periphery of the steel tower so as to be movable up and down, a fixing means for fixing the frame to a predetermined position on the outer peripheral surface of the steel tower, and a rotation mechanism on the frame. The above-mentioned object can be achieved by comprising a kelen brush that is rotatably attached to the outer periphery of the steel tower and a driving means that moves the frame up and down with respect to the steel tower.

  In the present invention, for example, the frame is raised to the upper part of the steel tower by the driving means, and the frame is fixed to the outer peripheral surface of the steel tower using the fixing means. And by rotating a keren brush with respect to the outer peripheral surface of a steel tower using a rotation mechanism, the steel tower outer peripheral surface of the part to which a frame is being fixed with a kelen brush is brushed, and a foreign material is removed.

  When the cleansing operation at the position where the frame is fixed is completed, the fixing by the fixing means is released, and the frame is moved downward by the driving means to the unprocessed portion of the kelen. The frame is fixed to the steel tower by the fixing means at the position after the movement. Then, similarly to the above, the cleansing work is performed with the cleansing brush.

  By sequentially performing such an operation up to the lower part of the tower, the outer peripheral surface of the tower is cleansed from the upper part to the lower part.

  The fixing means includes a pressing portion that can be pressed against the outer peripheral surface of the tower, and a drive unit that presses or releases the pressing portion against the outer peripheral surface of the tower, and the pressing portion presses at least two places on the outer peripheral surface of the tower. It is preferable that the configuration is provided.

  Specifically, the drive unit can be constituted by, for example, a hydraulic cylinder in which the rod moves forward and backward in the cylinder. In this case, an elastic member that can be pressed against the outer peripheral surface of the steel tower is attached to the tip of the rod to form the pressing portion. The drive unit is not limited to a hydraulic cylinder, and may be an air cylinder or a rack and pinion.

  Although it is necessary to provide at least two pressing portions in order to securely fix the frame body to the steel tower, it is preferable to provide three or more pressing portions in order to fix the pressing portion in a more stable state. These pressing portions are provided at equal intervals in the circumferential direction of the outer peripheral surface of the steel tower so as to press each other. Furthermore, it is preferable that the pressing portions are provided at the upper and lower portions of the frame body in terms of stability when the frame body is fixed to the steel tower.

  The keren brush may be an annular brush over the entire outer periphery of the steel tower, or may be composed of a plurality arranged in the circumferential direction of the steel tower. In the case of a plurality of brushes, it is preferable that the brushes are arranged at equal intervals with respect to the outer peripheral surface of the steel tower. Furthermore, the keren brush is preferably configured to have a predetermined length with respect to the vertical direction of the steel tower. When the length of the brush in the vertical direction is increased in this way, when the frame is fixed to the steel tower, the width of the outer peripheral surface of the steel tower can be widened at a time when the work is performed, and the work of the steel tower as a whole is increased. You can save time.

  Moreover, when comprising a keren brush from a some brush, it is preferable to provide so that a brush can move to the radial direction of a steel tower. Specifically, when the keren brush is fixed to the frame body via the rotation mechanism, the kelen brush is attached between the rotation mechanism and the keren brush via an elastic member such as a coil spring. At this time, the elastic member biases the keren brush in a direction of pressing the outer peripheral surface of the steel tower.

  By adopting such a movable configuration, the tip of the keren brush can be reliably brought into contact with the outer peripheral surface of the tower according to the outer diameter of the tower. At that time, the inner diameter of the frame is adjusted to the outer diameter of the large-sized steel tower.

  The rotating mechanism includes a motor fixed to the frame, an annular gear that rotates as the motor rotates, an annular guide rail that is fixed to the frame, and the rail that moves along the rail while being supported by the annular guide rail. It is preferable that an annular gear and a keren brush be attached to the moving member.

  For example, the motor is disposed on the outer periphery of the frame, and the annular gear is disposed on the inner side of the frame. A drive gear is fixed to a drive shaft of the motor, and the drive gear is meshed with an annular gear. It is preferable to interpose an intermediate gear for adjusting the rotational speed between the drive gear and the annular gear. When the motor is driven to rotate, the annular gear rotates inside the frame through the drive gear.

  Furthermore, the moving member can be configured to include a roller engaged with the annular guide rail and a support member on which the roller is rotatably supported. Then, the annular gear is fixed to the support member and the keren brush is attached. By comprising in this way, a keren brush is supported so that a movement to an annular guide rail is possible via a supporting member and a roller. Further, since the annular gear is fixed to the support member, when the annular gear rotates, the support member to which the annular gear is fixed rotates and moves along the annular guide rail. As the support member rotates, the keren brush fixed to the support member rotates inside the frame.

  The driving means for raising and lowering the frame body can be configured to include a wire having one end fixed to the frame body and a winding means for winding the wire from the other end of the wire.

  An example of the winding means is a winding winch. The winding means may be arranged at the upper part of the steel tower or may be arranged on the ground. When the winding means is arranged on the ground, a wire pulley is provided at the top of the steel tower. Furthermore, it is preferable in terms of stability that the frame is lifted by two or more wires.

  In addition, a scattering prevention net that can cover the entire outer peripheral surface of the steel tower below the frame when the frame rises to the uppermost part of the planned keren location is attached to the frame. It is preferable.

  This anti-scattering net can cover the entire outer peripheral surface of the steel tower below the position of the frame with the net in accordance with the lifting and lowering operation of the frame, so that it is possible to reliably prevent the dust that has been swollen from being scattered. .

  According to the steel tower keren machine of the present invention, the frame body is moved up and down with respect to the steel tower by the driving means, and the frame body is securely fixed by the fixing means at a predetermined position of the steel tower, and the outer peripheral surface of the steel tower with the kelen brush Can be done. As a result, the area that can be keren in a short time is large, and kelen can be safely performed despite kelen at high places.

  Embodiments of the steel tower keren machine of the present invention will be described with reference to the drawings. The steel tower keren machine 1 of the present invention is used for removing foreign matters such as rust adhering to the outer peripheral surface of a cylindrical steel tower 2 as shown in FIG.

  As shown in FIGS. 1 to 4, the steel tower keren machine 1 includes a frame 3 that surrounds the entire outer peripheral surface of the steel tower 2 and is arranged to be movable up and down with respect to the steel tower 2. The frame 3 includes a fixing means 4 for fixing the frame 3 to a predetermined position on the outer peripheral surface of the steel tower 2, and a kelen brush 6 attached to the frame 3 via the rotating mechanism 5 so that the outer periphery of the steel tower can be rotated. And a driving means 7 for moving the frame 3 up and down with respect to the steel tower 2.

  The frame 3 includes an annular upper frame portion 31 and a lower frame portion 32, and each of the frame portions 31 and 32 can be divided into two. The frame portions 31 and 32 are connected vertically by a plurality of long connecting members 33. The connecting member 33 has an L-shaped cross section in order to give strength. Note that the upper frame portion 31 may be provided with a scattering prevention cover 34 that extends obliquely upward inward in the radial direction, as indicated by a virtual line in FIG.

  The connecting member 33 is also used to connect the divided portions of the frame portions 31 and 32. One L-shaped piece of the connecting member 33 is fixed to both ends of the divided portions, and each of the connecting members 33 is fixed. The other piece is fixed in contact. Further, the connecting member 33 is also used for fixing a motor 51 described later to the frame 3 and fixing the hydraulic cylinder 42.

  The fixing means 4 includes a pressing part 41 that can be pressed against the outer peripheral surface of the tower, and a drive unit 42 that presses or releases the pressing part 41 against the outer peripheral surface of the tower.

  Specifically, the drive unit 42 includes a hydraulic cylinder 42 in which the rod 422 moves back and forth in the cylinder 421. An elastic member such as rubber that can be pressed against the outer peripheral surface of the tower 2 is attached to the tip of the rod 422 to form the pressing portion 41.

  The hydraulic cylinders 42 are arranged above the upper frame portion 31 and below the lower frame portion 32, respectively, and are arranged at three equal intervals in the circumferential direction of the frame body 3. In this embodiment, it is the structure which presses three places of the steel tower outer peripheral surface with the press part 41. FIG. In the present embodiment, since the pressing portions 41 are arranged at three locations in the circumferential direction of the steel tower 2 and above and below, respectively, the stability when the frame 3 is fixed to the steel tower 2 is good.

  As shown in FIG. 5, the drive control of the rod 422 of the hydraulic cylinder 42 and the drive control of the motor 51, which will be described later, are connected via a cable 8 to a signal receiving unit (not shown) to which the hydraulic cylinder 42 and the motor 51 are connected. A drive control unit (not shown) is connected. Note that the signal receiving unit is provided in the frame 3, and the drive control unit is disposed in the work place of the steel tower. The operator controls the driving control unit to control the pressing or releasing of the pressing unit 41 against the steel tower by the hydraulic cylinder 42 or to control the driving of the motor 51.

  Six keren brushes 6 are arranged at equal intervals in the circumferential direction of the steel tower 2. Each keren brush 6 includes a brush portion 61 that contacts the outer peripheral surface of the steel tower, a brush portion fixing member 62 to which the brush portion 61 is fixed, and a support roller 63 that is rotatably attached to the brush portion fixing member 62. Yes.

  The brush part 61 has a predetermined length with respect to the vertical direction of the steel tower 2 and is configured to have a rectangular brush surface having a predetermined length in the circumferential direction of the steel tower. The brush surface is formed such that the steel tower circumferential length is shorter than the vertical length.

  Support rollers 63 that are in contact with the outer peripheral surface of the steel tower 2 are attached to the brush portion fixing member 62 on both sides of the brush portion 61 in the circumferential direction. Four support rollers 63 are arranged with respect to the brush surface.

  When the length of the brush surface in the vertical direction is increased in this way, when the frame 3 is fixed to the steel tower 2 and the work is performed, the width in the vertical direction in which the outer peripheral surface of the steel tower can be cleaned at once can be widened. Keren work time for the entire tower can be shortened.

  The rotation mechanism 5 includes a motor 51, an annular gear 52, an annular guide rail 53, and a moving member 54. The motor 51 is fixed by the upper frame 3 and the connecting member 33. The motor 51 is disposed on the outer periphery of the frame 3 and is fixed to the upper part of the connecting member 33. A drive gear 56 is fixed to the drive shaft 55 of the motor 51. An intermediate gear 57 is engaged with the drive gear 56, and the annular gear 52 is engaged with the intermediate gear 57.

  The annular gear 52 has a donut shape and is disposed inside the frame 3. The annular gear 52 rotates inside the frame through a drive gear 56 and an intermediate gear 57 as the motor 51 rotates. The annular gear 52 is fixed to a support member 59 described later.

  Furthermore, an annular guide rail 53 is fixed to the connecting member 33 of the frame 3 at the upper and lower positions of the connecting member 33. As shown in FIG. 3, the two annular guide rails 53 are arranged such that the rail surface of the upper annular guide rail 53 faces downward and the rail surface of the lower annular guide rail 53 faces upward.

  A moving member 54 is provided so as to move along the rail while being supported by the annular guide rail 53. An annular gear 52 and a keren brush 6 are attached to the moving member 54.

  The moving member 54 includes a roller 58 engaged with the rail portions of the upper and lower annular guide rails 53, and a support member 59 on which the roller 58 is rotatably supported. The support member 59 includes a vertical support frame 591 having an L-shaped cross section to which the roller 58 can be attached, and two support bars 592 to which the vertical support frame 591 is fixed.

  The annular gear 52 is fixed to the upper support frame 591, and the keren brush 6 is attached to the support bar 592 via the link mechanism 9. Keren brush 6 is supported by annular guide rail 53 via support member 59 and roller 58 so as to be movable in the circumferential direction. Further, since the annular gear 52 is fixed to the support member 59, when the annular gear 52 rotates, the support member 59 to which the annular gear 52 is fixed rotates and moves along the annular guide rail 53. The fixed keren brush 6 rotates inside the frame.

  The link mechanism 9 to which the keren brush 6 is fixed has a coil spring 91 and two link rods 92 that are pivotally supported at the central portion. One end of each link bar 92 is swingably supported by the lower part of the support bar 592 and the lower part of the brush part fixing member 62, and the other end part of the long hole formed in the support bar 592 and the brush part fixing member 62. It is supported by the long hole so as to be movable up and down. By connecting the two link rods 92 with a coil spring 91 as shown in FIG. 3, the coil spring 91 biases the keren brush 6 in the direction of pressing against the outer peripheral surface of the steel tower.

  In this way, the keren brush 6 is configured to be movable in the radial direction of the tower by the link mechanism 9, and the tip of the brush part 61 reliably contacts the outer peripheral surface of the tower according to the outer diameter of the tower. Can be made. Note that the inner diameters of the upper and lower frame portions 31 and 32 are matched with the outer diameter of a large-sized steel tower.

  As shown in FIG. 5, the driving means 7 for raising and lowering the frame 3 includes a wire 71 having one end fixed to the frame 3 and a winding means 72 for winding the wire from the other end of the wire 71. Prepare.

  The winding means 72 is composed of two winding winches and is arranged on the ground. A pulley for wire 73 is provided for each winding winch 72 at the top of the steel tower, and the frame 3 is lifted by the two wires 71 via the pulley 73.

  Also, the frame 3 is moved up and down together with the frame 3, and when the frame 3 rises to the uppermost part of the planned keren location, the anti-scattering net 10 that covers the entire outer peripheral surface of the steel tower below the frame 3 is provided. It is installed.

  This anti-scattering net 10 can cover the entire outer peripheral surface of the steel tower below the position of the frame 3 with the net in accordance with the lifting and lowering operation of the frame 3, so that it is ensured that swelled dust etc. will be scattered. Can be prevented.

  In the present embodiment, the frame 3 is raised to the upper part of the tower 2 by the driving means 7, and the outer peripheral surface of the tower 2 is pressed by pressing the pressing portion 41 against the outer peripheral surface of the tower with the hydraulic cylinder 42 of the fixing means 4. The frame 3 is fixed to.

  Next, the motor 51 is driven to rotate the annular gear 52, thereby rotating the keren brush 6 with respect to the outer peripheral surface of the steel tower. By rotating the keren brush 6, the outer peripheral surface of the steel tower where the frame 3 is fixed is brushed to remove foreign matter.

  When the kelen work at the position where the frame 3 of the tower 2 is fixed is completed, the fixing by the fixing means 4 is released, and the winding winch 72 is driven to move the frame 3 downward to the untreated portion Let The frame 3 is fixed to the steel tower 2 by the fixing means 4 at the position after the movement. Then, the keren work is performed with the keren brush 6 as described above.

  By sequentially performing such an operation up to the lower part of the tower, the outer peripheral surface of the tower is cleansed from the upper part to the lower part.

  The steel tower keren machine according to the present invention is particularly suitable for column tower steel.

It is a top view of the steel tower keren machine of the present invention. It is XX sectional drawing in FIG. 1 of the kelen machine for steel towers of this invention. It is a principal part cross-sectional view of the kelen machine for steel towers of this invention. It is a principal part longitudinal cross-sectional view in AA of FIG. 3 of the kelen machine for steel towers of this invention. It is explanatory drawing which shows the state which has arrange | positioned the kelen machine for steel towers of this invention to the steel tower.

Explanation of symbols

1 Keren machine for steel tower 2 Steel tower
3 Frame 31 Upper frame 32 Lower frame 33 Connecting member
34 Splash prevention cover
4 Fixing means 41 Pressing part
42 Drive unit (hydraulic cylinder) 421 Cylinder 422 Rod
5 Rotating mechanism 51 Motor 52 Annular gear 53 Annular guide rail
54 Moving member 55 Drive shaft 56 Drive gear 57 Intermediate gear
58 Roller 59 Support member 591 Support frame 592 Support rod
6 Keren brush 61 Brush part 62 Brush part fixing member
63 Support roller
7 Driving means 71 Wire 72 Winding means (winding winch)
73 pulley
8 Cable 9 Link mechanism 91 Coil spring 92 Link rod
10 Splash prevention net

Claims (6)

A frame that is arranged on the outer periphery of the steel tower to be movable up and down;
Fixing means for fixing the frame to a predetermined position on the outer peripheral surface of the steel tower;
A kelen brush that is rotatably attached to the outer periphery of the steel tower via a rotation mechanism on the frame;
A kelen machine for a steel tower comprising drive means for moving the frame up and down with respect to the steel tower.   The fixing means includes a pressing portion that can be pressed against the outer peripheral surface of the tower and a drive unit that presses or releases the pressing portion against the outer peripheral surface of the tower, and the pressing portion is provided so as to press at least two places on the outer peripheral surface of the tower. The kelen machine for a steel tower according to claim 1, wherein   The kelen brush according to claim 1, wherein the keren brush includes a plurality of kelen brushes arranged in a circumferential direction of the steel tower, and is provided so as to be movable in a radial direction of the steel tower.   The rotating mechanism includes a motor fixed to the frame, an annular gear that rotates as the motor rotates, an annular guide rail that is fixed to the frame, and the rail that moves along the rail while being supported by the annular guide rail. The steel tower keren machine according to claim 1, further comprising an annular gear and a keren brush attached to the moving member.   2. The steel tower keren machine according to claim 1, wherein the driving means includes a wire having one end fixed to the frame and a winding means for winding the wire from the other end of the wire.   When the frame is raised and lowered with the frame, and when the frame rises to the top of the planned keren location, a scattering prevention net that can cover the entire outer peripheral surface of the steel tower below the frame is attached to the frame. The kelen machine for a steel tower according to claim 1, characterized in that:

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