JPH0724384Y2 - Swing equipment for climbing crane - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a turning device of a climbing crane used for power transmission, antenna towers for antennas, high-rise buildings, and the like.

[Prior Art] Conventionally, at the time of constructing a steel tower or a high-rise building for power transmission and antenna, as shown in FIG. 3 and FIG. For hydraulic,
A climbing crane is used, which is independently equipped with another function device installation facility B in which another function device such as an electric power source and a monitor TV is disposed.

That is, as shown in FIG. 3, in the swivel undulating equipment A of the jib a, a swivel frame c is fixedly mounted on a swivel seat c fixed to the top of a crane mast b through a swivel bearing, and a swivel drive device e is used. The swivel frame d swivels. Further, the jib a provided so as to be able to be undulated on the revolving frame d is configured to be undulated by a cylinder f, and the hook h can be hoisted and lowered by a hoisting device g.

Further, in the middle of the crane mast b, there is provided another function device installation facility B, which will be described later, which ascends and descends along the crane mast b via a lifting chain i stretched from the bottom of the swing undulation facility A to the ground foundation. In addition, the other functional equipment installation facility B is equipped with other functional equipment such as a monitor TV for grasping the work status and hydraulic and electric power sources for assembling steel towers and high-rise buildings.

Next, the other functional device installation facility B will be described in detail with reference to FIG.

A crane k for fixing the elevating frame body j to the crane mast b is arranged by a cylinder so that it can move back and forth on the elevating frame body j that moves up and down along the crane mast b via guide rollers. Two booms 1 are mounted symmetrically with respect to each other on the upper side of the elevating frame body j so that they can swivel and rise and fall. Moreover, the lifting frame j is lifted by a lifting drive source n for lifting the lifting frame j by rotating a chain sprocket m meshed with the lifting chain i, and a swing cylinder (not shown) for swinging the boom l. ), A hoisting cylinder o for hoisting the boom l, and a hoisting vertical movement cylinder p for the boom l.

In the climbing crane described above, after assembling the crane, when assembling a steel tower or the like, the other functional equipment installation facility B is lifted to the required height position of the crane mast b by the elevating drive source n and fixed to the crane mast b by the cannuki k. To do.
Next, the boom 1 in which hydraulic pressure for assembling a steel tower, an electric power source, and other functional devices such as a monitor TV is disposed is appropriately swung by a swing cylinder (not shown), and the boom 1 is appropriately swung by a hoisting cylinder o. It is undulated and the other functional device is set at a desired position. In such a state, the steel tower and other assembling work is performed.

[Problems to be solved by the invention] However, in the above-mentioned climbing crane,
It had the following problems.

(I) At least two booms are required to cover the entire work area because the boom turns finitely due to the crane mast, and the lifting chains for other function equipment installation equipment and other function equipment installation equipment Since a device for raising and lowering and fixing to the crane mast and a device for raising and lowering and rotating the boom are required, the structure becomes complicated, and the manufacturing cost and the installation cost are large, which is uneconomical.

(Ii) Since a protrusion, that is, a facility for installing other functional equipment, is disposed in the middle of the mast, the crane mast will be greatly affected by wind, an earthquake, etc., and a reinforcement facility is required.

(Iii) Since the drive source of the equipment for installing other functional equipment is not the drive source for operating the climbing crane, but another drive source installed on the ground is used, the wiring work becomes complicated and it takes a lot of time and trouble. is there.

The present invention has been made for the purpose of eliminating the above-mentioned disadvantages, simplifying the structure, and significantly reducing the manufacturing cost and the installation cost.

[Means for Solving the Problems] In the present invention, an inner race 7 with inner teeth 7a is pivotably fitted in an outer race 8 with outer teeth 8a to form a lower revolving ring 10, and an inner race 12 is provided. The inner race 13 is rotatably fitted to the upper to form the upper slewing ring 15, and between the slewing frame 3 having the jib 1 and the top of the crane mast 2,
Rotating table 11 provided with upper turning ring 15 and other functional device 21
And the lower slewing ring 10 are sequentially arranged from the upper side to the lower side, and the upper surface of one of the races 13 or 12 of the upper slewing ring 15 and the lower surface of the slewing frame 3 and the other race 12 or 13 of the upper slewing ring 15 are arranged. Secure the lower surface and the upper surface of the rotary table 11 respectively,
Further, the upper surface of the outer race 8 of the lower turning ring 10 and the lower surface of the rotary table 11 are fixed to each other, and the lower surface of the inner race 7 of the lower turning ring 10 and the top of the crane mast 2 are fixed to each other. Drive mechanism for crane rotation in which the pinion 19 of the drive mechanism 18 and the outer teeth 8a of the outer race 8 of the lower swing ring 10 are attached to the swing frame 3 again.
The present invention relates to a turning device of a climbing crane, characterized in that 16 pinions 17 and inner teeth 7a of the inner race 7 of the lower turning ring 10 are meshed with each other.

[Operation] The driving mechanism 18 for rotating other functional equipment is driven to rotate the outer race 8 with the external teeth 8a of the lower swivel ring 10, and the rotary table 11 provided with the other functional equipment 21 is integrated with the outer race 8. Turn to set the other function device 21 at a desired position.

Also, the brake is applied to the drive mechanism 18 for turning the other functional equipment, and the drive mechanism 16 for driving the crane is driven to move the drive mechanism 16 for turning the crane along the inner teeth 7a of the inner race 7 with the inner teeth 7a of the lower turning ring 10. Move around. Since the revolving frame 3 is attached to the rotary table 11 via the upper revolving ring 15,
The crane is turned together with the crane turning drive mechanism 16 to set the crane in a desired direction.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a climbing crane equipped with a swivel device X of the present invention. In FIG. 1, reference numeral 1 denotes a crane mast 2 provided on a top of a swivel frame 3 which is swivelable by the swivel device X so as to be capable of hoisting. It is a jib, and the jib 1 can be appropriately undulated by a cylinder 4, and a hook 6 can be hoisted and lowered by a hoisting device 5.

Next, the turning device X of the present invention will be described with reference to FIG.

The bearing is installed outside the inner race 7 with inner teeth 7a, which is installed and fixed on the top of the crane mast 2, and the outer race 8 with outer teeth 8a, which has an inner diameter slightly larger than the outer diameter of the inner race 7, is projected upward. A lower turning ring 10 is formed in a ball bearing shape by being fitted so as to be turnable via balls 9, and a rotary table 11 is attached to the upper side of the outer race 8 of the lower turning ring 10. Further, inside the outer race 12 mounted on the upper side of the rotary table 11, an inner race 13 having an outer diameter slightly smaller than the inner diameter of the outer race 12 is swung through a bearing ball 14 while protruding upward. The upper revolving ring 15 is fitted to form a ball bearing shape, and the revolving frame 3 is placed and fixed on the upper surface of the inner race 13 of the upper revolving ring 15. Further, a crane turning drive mechanism 16 is provided on the turning frame 3, and a pinion 17 of the crane turning drive mechanism 16 is provided.
And the inner teeth 7a of the inner race 7 of the lower swivel ring 10 are meshed with each other, and other functional equipment (for example, a monitor TV for grasping the work situation, a hydraulic or electric power source for assembling a tower or a high-rise building) The turning drive mechanism 18 of 21 is attached to the top of the crane mast 2, and the pinion 19 of the turning drive mechanism 18 is attached.
And the outer teeth 8a of the outer race 8 of the lower swivel ring 10 mesh with each other. Further, one end of a beam 20 that is expandable and collapsible is attached to the rotary table 11 in a state of protruding laterally, and another functional device 21 is arranged at the other end of the beam 20. Reference numeral 22 in FIG. 1 indicates a power transmission tower.

Next, the operation will be described.

First, turning of the crane will be described. The turning mechanism 18 of the other functional device 21 is braked to prevent the pinion 19 from rotating, and the outer race 8 of the lower turning ring 10 and the rotary table 11 are fixed to the crane mast 2 to fix the beam.
Keep 20 from turning.

The drive mechanism 16 for turning the crane is driven to rotate the pinion 17. At that time, the inner race 7 of the lower slewing ring 10 having the inner teeth 7a that meshes with the pinion 17 is fixed to the top of the crane mast 2, so that the pinion 17 follows the inner teeth 7a of the inner race 7 of the lower slewing ring 10. To rotate and move. Further, since the crane turning drive mechanism 16 is attached to the inner race 13 which is fitted to the outer race 12 of the upper turning ring 15 via the turning frame 3, the crane turning drive is integrated with the rotation movement of the pinion 17. The mechanism 16 and the swivel frame 3 swivel. By this turning, the orientation of the crane can be appropriately adjusted in all directions.

Next, the turning of the beam 20 equipped with the other functional device 21 will be described.

First, the crane swing drive mechanism 16 is braked to fix the swing frame 3 to the top of the crane mast 2 via the crane swing drive mechanism 16 and the inner race 7 of the lower swing ring 10.

The turning drive mechanism 18 of the other functional device 21 is driven to rotate the pinion 19. Since the turning drive mechanism 18 is fixed to the top of the crane mast 2, rotation of the pinion 19 causes the outer race 8 of the lower turning ring 10 to turn. Turntable 11
The lower surface of the lower swivel ring 10 is attached to the outer race 8 and the upper surface of the rotary table 11 is attached to the outer race 12 of the upper swivel ring 15, so that the lower swivel ring 10 rotates integrally with the outer race 8. The table 11 turns, and the beam 20 provided on the rotary table 11 also turns integrally, and separately from the crane work, a hydraulic power source, an electric power source, and another functional device 21 such as a television camera are placed at arbitrary positions independently. It can be set as shown in FIG. 1, and the efficiency of the assembling work of the steel tower 22 and the like can be greatly improved, and the drive source of the turning drive mechanism 18 of the other functional device 21 is also used as the drive source for turning the crane. It is convenient and convenient.

The present invention is not limited to the above-mentioned embodiment,
For example, it is optional to fix the inner race lower surface of the upper slewing ring and the rotary table upper surface, and the outer race upper surface of the upper slewing ring and the lower surface of the slewing frame, respectively, within a range not departing from the gist of the present invention. Of course, various changes can be made.

[Advantages of the Invention] As described above, according to the swinging device of the climbing crane of the present invention, various excellent effects as described below can be obtained.

(I) Since the crane swing mechanism and the swing mechanism of other functional devices are integrated, the both swing mechanisms can be lifted and lowered integrally, and the swing drive source of the crane can also be used as the swing mechanism of other functional devices. The wiring work can be simplified and the structure can be simplified.

(II) Since other functional devices can be easily set to desired positions in one direction with one beam, the efficiency of assembling work such as a steel tower can be improved.

(III) Since it is not necessary to dispose the lifting equipment with two booms equipped with other functional equipment in the middle of the mast separately from the crane turning equipment, the overall self-weight reduction (reduction of basic reaction force) can be achieved. It is possible to reduce the influence of wind and earthquake on the mast, and it is possible to prevent the external force from being locally applied to the mast.

(IV) It is convenient because the mast stay can be removed from the steel tower or high-rise building side when the mast is assembled to a height above the mast self-sustaining height according to the above (III).

(V) Due to the above (I) to (IV), the manufacturing cost and the installation cost can be significantly reduced.

(VI) Since the upper swing ring, the rotary table provided with other functional equipment, and the lower swing ring are sequentially arranged from the upper side to the lower side between the swing frame equipped with the jib and the top of the crane mast, The frame and rotary table do not have a structure projecting outward from the crane mast, and the size of the swivel frame and rotary table can be made compact, and equipment costs can be reduced.

[Brief description of drawings]

FIG. 1 is an overall view of a climbing crane equipped with a swivel device of the present invention, FIG. 2 is a vertical sectional view showing the structure of the swivel device of the present invention in FIG. 1, and FIG. Fig. 4 is an overall view of a climbing crane equipped with Fig. 4, and Fig. 4 is an enlarged view showing another functional device installation facility in Fig. 3. In the figure, 1 is a jib, 2 is a crane mast, 3 is a swing frame, 7 is an inner race with internal teeth, and 7a is an inner race 7.
Inner teeth, 8 outer race with outer teeth, 8a outer teeth of outer race 8, 9 bearing balls, 10 lower swivel ring,
11 is a rotary table, 12 is an outer race, 13 is an inner race, 14 is a bearing ball, 15 is an upper slewing ring, 16 is a drive mechanism for rotating a crane, 17 is a pinion, 18 is a drive mechanism for rotating other functional equipment, and 19 is A pinion, 20 is a beam, 21 is another functional device, and X is the turning device of the present invention.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshinori Fukumoto 1-1, Kandaogawamachi, Chiyoda-ku, Tokyo Inside Ishikawajima Transporter Co., Ltd. (56) References JP-A-50-111755 (JP, A) JP-A Sho 55-80684 (JP, A) Actually opened Sho 48-45401 (JP, U)

Claims (1)

[Scope of utility model registration request] An inner race (7) with inner teeth (7a) is rotatably fitted in an outer race (8) with outer teeth (8a) to form a lower slewing ring (10) and the outer race. The inner race (13) is rotatably fitted in the (12) to form an upper slewing ring (15) between the slewing frame (3) equipped with the jib (1) and the top of the crane mast (2). The upper swivel ring (15), the rotary table (11) provided with the other functional device (21), and the lower swivel ring (10) are sequentially arranged from the upper side to the lower side. The upper surface of one of the races (13) or (12) and the lower surface of the revolving frame (3) and the other race (12) or (13) of the upper revolving ring (15).
The lower surface and the upper surface of the rotary table (11) are fixed to each other, and further, the outer race (8) upper surface of the lower swivel ring (10) and the lower surface of the rotary table (11) and the inner race (7) of the lower swivel ring (10). The lower surface and the top of the crane mast (2) are fixed to each other, and other functional equipment attached to the top of the crane mast (2) The pinion (19) of the drive mechanism (18) for turning and the outer race of the lower turning ring (10) ( A drive mechanism (1) for crane rotation in which the external tooth (8a) of 8) is also attached to the swing frame (3).
A turning device for a climbing crane, characterized in that the pinion (17) of 6) and the inner teeth (7a) of the inner race (7) of the lower turning ring (10) are meshed with each other.