JP3235305U - Tower elevating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and quickly perform on-site installation work, to eliminate the complexity of installation work by simply temporarily holding the device main body against a guide rail, and to eliminate the complexity of the device main body even when the electric system does not operate. To provide a tower elevating device that can prevent falling and ensure high safety. SOLUTION: A steel tower elevating device 1 has a rack 2R extending up and down, and includes a guide rail 2 fixed to a pillar member L of the steel tower via a fixture 3, and a drive wheel that meshes with the rack. A motor 11 for driving the drive wheels is provided, and a drive elevating body 4 that moves along the guide rail by the rotation of the drive wheels is provided. The guide rail has a T-shaped cross section, and the drive elevating body is a guide. A pair of frame bodies 4A arranged on the left and right sides of the rail are provided, and a pair of guide rollers in contact with the back surface side of the guide rail are pivotally supported inside the pair of frame bodies. A temporary holding member that is slidably supported in the direction intersecting the directions and engages with the rack at one slide position is provided. [Selection diagram] Fig. 1

Description

The present invention relates to a tower elevating device that moves or assists a worker up and down along a tower.

Conventionally, as an elevating device installed on a steel tower, a guide rail is installed along the vertical direction of the tower, and a rack is provided on the guide rail over the entire length, and a drive wheel that meshes with the rack and the drive wheel are rotationally driven. A device main body including a motor is provided, and the device main body is provided with a guide roller or the like that movably holds itself with respect to a guide rail (see Patent Document 1 below).

Japanese Unexamined Patent Publication No. 2001-89082

The above-mentioned prior art does not take into consideration the workability when arranging the guide rail on the tower and the workability when mounting the device body of the elevating device on the guide rail in the field where the tower exists. Therefore, there is a problem that it takes a long time to install the elevating device at the site and start the work.

Further, when the device body of the elevating device is mounted on the guide rail, gravity always acts on the device body, so that the device body tends to move downward with respect to the guide rail. Therefore, it is necessary to prepare some kind of temporary holding means to hold the apparatus main body against the guide rail, and there is a problem that the installation work becomes complicated by separately preparing the temporary holding means.

In addition, although the conventional technology is equipped with an emergency braking device, this activates the electromagnetic brake attached to the motor to prevent the device body from falling. Therefore, when the electromagnetic brake does not operate, the device body falls. There was a problem that could not be effectively suppressed.

The present invention has an object to deal with such a problem. In other words, the installation work on site can be performed easily and quickly, the complexity of the installation work can be eliminated by temporarily holding the device body against the guide rail, and the device body can be used even when the electrical system is out of service. It is an object of the present invention to prevent the falling of the rail and ensure high safety.

In order to solve such a problem, the present invention has the following configurations.
It has a rack that extends vertically, has a guide rail that is fixed to the pillar material of the steel tower via a fixture, and has a drive wheel that meshes with the rack and also has a motor that drives the drive wheel. It is provided with a drive elevating body that moves along the guide rail by the rotation of the drive wheel, the guide rail has a T-shaped cross section intersecting in the longitudinal direction, and the drive elevating body is on the left and right sides of the guide rail. A pair of frames to be arranged is provided, and a pair of guide rollers in contact with the back surface side of the mounting surface of the rack in the guide rails are pivotally supported inside the pair of frames. A temporary holding member is provided that is slidably supported in a direction intersecting the longitudinal direction of the guide rail, engages with the rack at one slide position, and is disengaged with the rack at another slide position. An iron tower elevating device characterized by being.

The tower elevating device having such characteristics can easily and quickly perform the installation work on site, and the complexity of the installation work can be eliminated by simply temporarily holding the device body against the guide rail. Can be done. In addition, by installing a centrifugal brake on the rotating shaft of the drive wheel to brake the rotation of the rotating shaft by centrifugal force due to the rotation of the rotating shaft, it is possible to prevent the device body from falling even when the electrical system is out of service, ensuring high safety. Can be secured.

Explanatory drawing which showed the whole structure of the tower elevating device. Explanatory drawing which showed the internal structure of a drive elevating body and a driven elevating body. Explanatory drawing which showed the operation of the temporary holding member in a driven elevating body (driving elevating body) ((a) is a temporary holding state, (b) is a release state). An explanatory view showing the mounting configuration of the guide roller in the driven elevating body ((a) is a state before mounting, (b) is a mounting state). Explanatory drawing which showed centrifugal brake in a drive elevating body and a driven elevating body. Explanatory drawing which showed the structural example of the fixture which fixes the guide rail to the pillar material of a steel tower. Explanatory drawing of an example in which an emergency ladder material is provided in a fixture ((a) is an example in which a ladder material is provided on the right side, (b) is an example in which a ladder material is provided on the left side).

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different figures indicate parts having the same function, and duplicate description in each figure will be omitted as appropriate. The arrow indicating the direction in each figure indicates the horizontal direction in the XY direction and the vertical direction in the Z direction.

As shown in FIG. 1, the tower elevating device 1 according to the embodiment of the present invention includes a guide rail 2 and a drive elevating body 4 that moves along the guide rail 2. Further, the tower elevating device 1 includes a driven elevating body 5 that moves along the guide rail 2. The driven elevating body 5 is connected to the driving elevating body 4 via a connecting tool 6. A mounting frame T on which the worker M is mounted is coupled to the driven elevating body 5. When the drive elevating body 4 moves up and down along the guide rail 2, the driven elevating body 5 connected to the drive elevating body 4 moves up and down along the guide rail 2, and the mounting frame T coupled to the driven elevating body 5 is the same. Move with.

Although an example of connecting the driven elevating body 5 to the driving elevating body 4 will be described here, a means for holding an operator may be laid only on the driving elevating body 4.

The guide rail 2 has a rack 2R extending up and down, and is fixed to the pillar member L of the steel tower via the fixture 3. As shown in FIG. 3, the guide rail 2 has a T-shaped cross section (X-Y cross section in the drawing) intersecting in the longitudinal direction (Z direction in the drawing), and the surface facing outward with respect to the pillar L is a rack. It is the installation surface (rack installation surface) 2a of 2R.

Further, as shown in FIG. 3, the guide rail 2 having a T-shaped cross section has a side surface 2c extending from the back surface 2b of the rack installation surface 2a toward the pillar L, and a mounting portion 2d is provided on the side surface 2c. , The fixture 3 is coupled to the mounting portion 2d.

As shown in FIG. 2, the drive elevating body 4 includes a drive wheel 10 that meshes with the rack 2R. The drive wheel 10 is pivotally supported by the frame bodies 4A and 4B of the drive elevating body 4 by the rotating shaft 14A. The drive wheel 10 has a pin 10P around it, and the drive elevating body 4 is installed on the guide rail 2 so that the pin 10P meshes with the rack 2R.

The drive elevating body 4 includes a motor 11 that drives the drive wheels 10. The rotation of the motor 11 is decelerated by the speed reducer 12, and is transmitted from the small gear 13 attached to the output shaft 13A of the speed reducer 12 to the large gear 14 attached to the rotating shaft 14A via the transmission chain 15. Then, the motor 11 rotates and drives the drive wheels 10. When the drive wheel 10 is rotationally driven by the motor 11, the pin 10P meshes with the rack 2R and the drive elevating body 4 moves up and down along the guide rail 2. The motor 11 is driven by power supply from the power source B deployed on the ground via the cable C.

As shown in FIG. 2, the driven elevating body 5 includes a driven wheel 40 in which a pin 40P meshes with a rack 2R. The driven wheel 40 is pivotally supported by the frame bodies 5A and 5B of the driven elevating body 5 via the rotating shaft 40A.

The drive elevating body 4 and the driven elevating body 5 include a guide roller 20. The guide roller 20 is provided so as to be in contact with the back surface side (back surface 2b) of the rack installation surface 2a of the guide rail 2. In the drive elevating body 4, a plurality of guide rollers 20 (two in the illustrated example) are provided in the direction along the guide rail 2. By sandwiching the guide rail 2 between the plurality of guide rollers 20 and the drive wheels 10, the drive elevating body 4 is prevented from being separated from the guide rail 2. Similarly, by sandwiching the guide rail 2 between the plurality of guide rollers 20 and the driven wheels 40, the driven elevating body 5 is prevented from being separated from the guide rail 2.

As shown in FIG. 3, a pair of guide rollers 20 are provided with the side surface 2c of the guide rail 2 interposed therebetween, and the respective frame bodies 4A (5A) are provided inside the pair of frame bodies 4A (5A) and 4B (5B). , 4B (5B). At this time, the drive elevating body 4 (driven elevating body 5) includes a pair of frame bodies 4A (5A) and 4B (5B) that sandwich the guide rail 2, and the pair of frame bodies 4A (5A) and 4B (5B). ) Is coupled by the coupling member 4C (5C).

As shown in FIG. 4, the guide roller 20 is attached to the frame bodies 4A (5A) and 4B (5B) with the mounting screws 22. FIG. 4 shows how to attach the guide roller 20 to the frame body 5B, but the same applies to the other frame bodies 4A, 4B, and 5A. A screw receiving portion 23 is fixed to the outside of the frame body 5B, and the mounting screw 22 is screwed into the screw receiving portion 23 by an operation from the outside of the frame body 5B, and the guide roller 20 is inserted inside the frame body 5B. The guide roller shaft 21 that supports the shaft is fixed to the tip of the mounting screw 22.

Then, in the state shown in FIG. 4 (a) where the mounting screw 22 is shallowly screwed in, the guide roller 20 is held at a position separated from the guide rail 2, and when the mounting screw 22 is screwed in by operating from the outside of the frame body 5B, the mounting screw 22 is screwed in. As shown in FIG. 4B, the guide roller 20 moves to a position in contact with the guide rail 2. When the screwing of the mounting screw 22 is completed, the fixing pin 24 is inserted into the pin hole provided in the screw receiving portion 23 and the mounting screw 22 to fix the position of the guide roller 20.

As shown in FIG. 3, the drive elevating body 4 and the driven elevating body 5 are provided with a temporary holding member 30. The temporary holding member 30 is for temporarily holding the drive elevating body 4 or the driven elevating body 5 on the guide rail 2, and is provided inside the pair of frame bodies 4A (5A) and 4B (5B). The temporary holding member 30 is slidably supported by a pair of frame bodies 4A (5A) and 4B (5B) in a direction intersecting the longitudinal direction of the guide rail 2, and is supported at one slide position shown in FIG. 3A. It engages with the rack 2R and is disengaged from the rack 2R at another slide position shown in FIG. 3 (b).

More specifically, the temporary holding member 30 is a rod-shaped member extending in the Y direction shown in the drawing, and is fixed to the slide piece 32. The slide piece 32 is slidably provided along a support shaft spanned in the Y direction shown in the drawing between a pair of frame bodies 4A (5A) and 4B (5B), and is fixed to the slide shaft 31. The slide shaft 31 is slidably supported in a direction intersecting the longitudinal direction of the guide rail 2 (Y direction in the drawing), and an operation portion 31a is provided on one end side and a refraction portion 31b is provided on the other end side. The 31a and the refracting portion 31b are flexibly supported with respect to the main body of the slide shaft 31.

The slide shaft 31 engages the temporary holding member 30 with the rack 2R in a state where the shaft support portion of the operation portion 31a is pushed into the pair of frame bodies 4A (5A) and 4B (5B) (state of FIG. 3A). The temporary holding member 30 and the rack 2R are engaged with each other in a state where the shaft support portion of the operation portion 31a is pulled out of the pair of frame bodies 4A (5A) and 4B (5B) (state of FIG. 3B). To cancel. At this time, when the temporary holding member 30 is engaged with the rack 2R as shown in FIG. 3A, the drive elevating body 4 (driven elevating body 5) is temporarily held by the guide rail 2. As shown in FIG. 3B, when the temporary holding member 30 and the rack 2R are disengaged, the drive elevating body 4 (driven elevating body 5) becomes movable along the guide rail 2.

As shown in FIG. 5, the drive elevating body 4 and the driven elevating body 5 are provided with a centrifugal brake 7. In the illustrated example, the centrifugal brake 7 is provided on both the drive elevating body 4 and the driven elevating body 5, but it may be provided on only one of them. The centrifugal brake 7 is provided on the rotary shaft 14A of the drive wheel 10 (rotary shaft 40A of the driven wheel 40), and when the rotary shaft 14A (40A) rotates at high speed, the internal brake member is opened by centrifugal force and the internal engagement is performed. By engaging with the piece, the rotation of the rotating shaft 14A (40A) is braked.

The centrifugal brake 7 operates when the drive elevating body 4 or the driven elevating body 5 falls along the guide rail 2 regardless of the rotation of the motor 11. That is, when the drive wheel 10 or the driven wheel 40 rotates due to the drive elevating body 4 or the driven elevating body 5 falling along the guide rail 2, the rotating shaft 14A (40A) rotates at high speed to operate the centrifugal brake 7. .. According to this, if the engagement between the drive wheel 10 or the driven wheel 40 and the rack 2R is maintained even when the electric system is not operating, it is possible to prevent the drive elevator 4 or the driven elevator 5 from falling. It is possible to ensure high safety during work.

In order to install such a tower elevating device 1 on the tower L, first, as shown in FIG. 6, the guide rail 2 is attached to the tower L by the fixture 3. The fixture 3 includes, for example, holding portions 3a and 3b that sandwich the pillar L having an L-shaped cross section, and is connected to connect the fixture 3 to the mounting portion 2d of the guide rail 2 at the center of the holding portions 3a and 3b. A part 3c is provided. The holding portions 3a and 3b of the fixture 3 are fixed with the fastener (bolt nut) 3e via the spacer member 3s in a state where the pillar member L is sandwiched, and the connecting portion 3c of the fixture 3 is fixed. It is fixed to the mounting portion 2d of the guide rail 2 with the fastener (bolt nut) 3d.

When such a fixture 3 is used, the fixture 3 can be quickly fixed to the pillar L simply by sandwiching and fastening the holding portions 3a and 3b of the fixture 3 to the pillar L. The guide rail 2 can be fixed to the pillar member L via the fixture 3.

In order to mount the drive elevating body 4 (or the driven elevating body 5) on the guide rail 2, the mounting screw 22 is operated from the outside in the frame bodies 4A (5A) and 4B (5B), as shown in FIG. 4A. As shown, the guide roller 20 is moved to a position away from the guide rail 2, and a pair of frame bodies 4A (5A) and 4B (5B) connected by the coupling member 4C (5C) are arranged on the left and right sides of the guide rail 2. Then, the slide shaft 31 is operated to engage the temporary holding member 30 with the rack 2R. As a result, the drive elevating body 4 (driven elevating body 5) is temporarily held on the guide rail 2. Then, with the drive elevating body 4 (driven elevating body 5) temporarily held on the guide rail 2, as shown in FIG. 4 (b), the mounting screws 22 are attached from the outside of the frame bodies 4A (5A) and 4B (5B). Is screwed in, the guide roller 20 is moved to a position in contact with the guide rail 2, and is fixed by the fixing pin 24.

In this way, the drive elevating body 4 (or the driven elevating body 5) can move the position of the guide roller 20 by operating the pair of frame bodies 4A (5A) and 4B (5B) from the outside, so that the guide can be moved. A pair of frame bodies 4A (5A) and 4B (5B) are arranged on the left and right sides of the guide rail 2 with the rollers 20 positioned so as not to interfere with the guide rail 2, and the guide roller 20 is positioned in contact with the guide rail 2 in the subsequent operation. Can be moved. As a result, the pair of frame bodies 4A (5A) and 4B (5B) of the drive elevating body 4 (or the driven elevating body 5) can be easily deployed on the guide rail 2.

Further, since the drive elevating body 4 (or the driven elevating body 5) itself is provided with the temporary holding member 30, a means for holding the drive elevating body 4 (or the driven elevating body 5) on the guide rail 2 is separately provided. The drive elevating body 4 (or the driven elevating body 5) can be easily attached to the guide rail 2 without any need, and the complexity of the installation work of the tower elevating device 1 can be eliminated.

FIG. 7 shows an example in which a ladder material 3p is provided on the fixture 3 so that an operator can descend along the pillar material by himself / herself in an emergency. The ladder member 3p is provided on one of the grip portions 3a and 3b of the fixture 3, and as shown in FIG. 7A, the ladder member 3 is provided with the ladder member 3p on the right side (the grip portion 3a side), and the figure. As shown in 7 (b), the fixture 3 provided with the ladder member 3p on the left side (grip portion 3b side) is used alternately up and down. As the ladder material 3p, a pipe material having a predetermined diameter and a predetermined length (for example, about 150 mm) can be used, and one end side is fixed to the grip portion 3a or 3b of the fixture 3 by welding.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the design changes, etc. within the range not deviating from the gist of the present invention, etc. Even if there is, it is included in the present invention. Further, each of the above-described embodiments can be combined by diverting the technologies of each other as long as there is no particular contradiction or problem in the purpose and configuration thereof.

1: Tower elevating device,
2: Guide rail, 2R: Rack, 2a: Rack installation surface, 2b: Back surface,
2c: Side surface, 2d: Mounting part 3: Fixture, 3a, 3b: Holding part, 3c: Connecting part, 3d, 3e: Fastener,
3s: spacer member, 3p: ladder material,
4: Drive elevating body, 4A, 4B: Frame body, 4C: Coupling member,
5: driven elevating body, 5A, 5B: frame body, 5C: coupling member,
6: Coupling, 7: Centrifugal brake, 10: Drive wheel, 11: Motor, 12: Reducer,
13: Small gear, 13A: Rotating shaft, 14: Large gear, 14A: Rotating shaft,
15: Transmission chain, 20: Guide roller, 21: Guide roller shaft,
22: Mounting screw, 23: Screw receiving part, 24: Fixing pin,
30: Temporary holding member, 31; Slide shaft, 31a: Operation unit, 31b: Refraction unit,
32: Slide piece, 33: Support shaft, 40: Driven wheel, 40A: Rotating shaft,
T: Mounting frame, L: Pillar material (steel tower), B: Power supply, C: Cable, M: Worker

Claims (4)

With a guide rail that has a rack that extends up and down and is fixed to the pillar material of the tower via a fixture,
A drive wheel that meshes with the rack is provided, a motor that drives the drive wheel is provided, and a drive elevating body that moves along the guide rail by rotation of the drive wheel is provided.
The guide rail has a T-shaped cross section that intersects in the longitudinal direction.
The drive elevating body includes a pair of frames arranged on the left and right sides of the guide rails, and a pair of guide rollers in contact with the back surface side of the rack installation surface of the guide rails inside the pair of frames. Supporting the axis,
The pair of frames are slidably supported in a direction intersecting the longitudinal direction of the guide rails, engage with the rack at one slide position, and disengage from the rack at the other slide positions. A steel tower elevating device characterized in that a temporary holding member is provided. It is provided with a driven wheel that is connected to the drive elevating body and meshes with the rack, and is provided with a driven elevating body to which a mounting frame on which an operator is placed is connected.
On one or both of the rotation shaft of the drive wheel in the drive elevator and the rotation shaft of the driven wheel in the driven elevator, a centrifugal brake that brakes the rotation of the rotation shaft by the centrifugal force due to the rotation of the rotation shaft is provided. The steel tower elevating device according to claim 1, wherein the steel tower elevating device is provided. The first or second aspect of the present invention, wherein the pair of guide rollers are movably mounted at a position in contact with the guide rail and a position away from the guide rail by an operation from the outside of the pair of frames. Tower elevating device. The tower elevating device according to any one of claims 1 to 3, wherein the fixing tool is provided with a ladder material so that an operator can get off by himself / herself in an emergency.

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