JP3448016B2 - Water gate hoisting device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoist of a sluice gate installed on a pier of a sluice gate to wind one end of a wire rope suspended from the sluice gate. Related to the device. FIG. 7 shows a conventional water gate hoisting apparatus. As shown in the drawing, the hoist includes an electric motor 2 as a drive source, a speed reducer 3 connected to the electric motor 2, and a pair of right and left windings connected to the speed reducer 3 via relay shafts 4 and 4. The sluices 23 and 23 are installed on the pier 1 of the sluice gate. [0003] The winder 23 has a through hole 1 provided in the pier 1.
a drum 20 rotatably provided in the vicinity of the shaft a, and a drive shaft 21 provided in parallel with the outside of the drum 20 and connected to the relay shaft 4. Drum gear 20a integral with 20
, The drum 20 is rotated. [0006] As shown in the conceptual diagram of FIG. 6, one end of a wire rope 7 that suspends the water gate 10 is fixed to the drum 20. The drum 20 is rotated to wind up the wire rope 7. As a result, the sluice gate 10 is raised,
Further, by rotating the drum 20 in the opposite direction, the wire rope 7 is released, and the gate 10 is lowered by its own weight. In FIG. 6, reference numeral 19 denotes a sheave attached to the upper end of the sluice door 10 for hanging the wire rope 7, 8, 9 designate the sheave similarly attached to the pier 1, and 7a designates the above. 4 shows a peer-side fixing portion of the wire rope 7. [0006] In the above-mentioned conventional water gate door hoisting apparatus, a drive shaft provided with a pinion that meshes with a drum gear is provided on a pier outside the drum in order to transmit the rotation of the relay shaft to the drum. It must be rotatable, and the load of the gate is applied to the drum via a wire rope.To reduce the load on the center axis of the drum, attach drum gears on both sides of the drum, Had to engage with the pinion of the drive shaft. For this reason, there is a problem that the device becomes large-scale. Further, in order to cover the hoisting device, a large building must be provided on the pier of the floodgate, causing a problem that the surrounding scenery is damaged. Further, in the above-mentioned hoisting device, since the drum gear and the pinion are exposed to the outside, dust adheres and accumulates on the drum gear and the pinion.
In addition to the need for maintenance, there is a problem that a foreign object may be caught between the gears and an unexpected accident may be caused. SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems of the conventional water gate door hoisting apparatus. [0010] In order to solve the above-mentioned problems, according to the present invention, a sluice door is suspended by a drum installed on a pier of a sluice gate and connected to a drive source via a drive shaft. In a water gate door hoisting device in which one end of a supported wire rope is wound up, a drive shaft is inserted from one side of the drum into a drum to which one end of the wire rope is fixed, and is opposed to the drive shaft. The fixed shaft penetrates from the other side of the drum, and at the end of the fixed shaft, a fixed ring provided with an internal gear on the inner periphery is attached. Through a plurality of gears rotatably attached to a central shaft fixed to one side, mesh with a gear fixed to the drive shaft, and provided inside the central shaft on the other side of the support plate. Communicated oil pool to surrounding bearings The oil reservoir is immersed in the lubricating oil stored in the lower part of the inside of the drum by the rotation of the drum, so that the oil reservoir is replenished with the lubricating oil. Also,
The fixed shaft and the fixed ring have tips at the inner circumference of the fixed ring.
Guide pipe opened to face the upper end of the internal gear
Provided with an endoscope inserted into the guide tube.
The gear can be inspected from outside . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on illustrated embodiments. In the drawings, the same functional parts as those shown in the prior art are denoted by the same reference numerals. FIG. 1 is a front view showing a water gate hoisting device according to the present invention, FIG. 2 is a right side view thereof, and FIG. 3 is a plan view thereof. As shown in the figure, this hoisting device is installed on a pier 1 of a floodgate in the same manner as a conventional one, and a motor 2 as a drive source, a speed reducer 3 connected to the motor 2 and a relay with the speed reducer 3 It comprises a pair of left and right drums 5, 5 connected via shafts 4, 4. And, this drum 5 has
As shown in the conceptual diagram of FIG. 1, one end of the wire rope 7 on which the water gate door 10 is suspended is fixed so as to be wound up. In FIG. 6, reference numeral 19 denotes a sheave attached to the upper end of the sluice door 10 for hanging the wire rope 7, 8, 9 and 9 similarly designate sheaves attached to the pier 1 side, and 7a denotes a wire. 4 shows a peer-side fixing portion of the rope 7. In addition, in FIGS. 1 to 3, reference numeral 1 a denotes a through hole for the wire rope provided in the pier 1. Here, in the water gate door hoisting apparatus of the present invention, as shown in FIGS. 4 and 5, a drive shaft 6 is inserted into the drum 5 from one side of the drum 5 and a gear 6a provided at the tip thereof. Is engaged with a plurality of gears 16a, 17a, 18a rotatably held at predetermined positions inside the drum 5. These gears 16a, 17a, 18a are connected to a fixed shaft 12 that penetrates into the drum 5 from the other side.
Internal gear 13a provided on the inner periphery of fixed ring 13 integrated with
, And constitute a planetary gear mechanism 11 using the gear 6a as a sun gear. The drum 5 is rotatably held by the fixed shaft 12 and the drive shaft 6. Further, on the base end side (right side in FIG. 4) of the drive shaft 6 protruding from the drum 5,
The relay shaft 4 is connected. In FIGS. 4 and 5, reference numeral 14 denotes a support plate provided integrally with the inner periphery of the drum 5, 16, 17, 1
Reference numeral 8 denotes a central shaft projecting on the concentric circle on one side of the support plate 14 for rotatably supporting the gears 16a, 17a, 18a, and 15 connects and fixes the other sides of the central shafts 16, 17, 18 to each other. And a rotation support member rotatably held by the fixed shaft 6. Reference numeral 14a denotes an oil sump provided on the other side of the support plate 14, and lubricating oil accumulated in the oil sump 14a is supplied through a through hole 16a provided in the center shaft 16 to the gear 1.
6a is supplied to a peripheral bearing portion 16c which rotatably supports the bearing 6a. Although not shown, the other central shafts 17a and 18a are similarly provided with through holes, and an oil reservoir is provided on the other side of the support plate 14 so as to communicate with the through holes. . In FIG. 4, reference numeral 30 denotes a guide tube of an endoscope (not shown). The guide tube 30 extends from the outside of the apparatus through the center hole 12a of the fixed shaft 12 to the outside near the upper end of the fixed ring 13. It is provided so as to be inserted into the provided opening 13b, and its tip (the right end in FIG. 4) opens at a position facing the upper end of the internal gear 13b provided on the inner periphery of the fixed ring 13. The lower end of the planetary gear mechanism 11 is immersed inside the drum 5 of the hoisting device.
A predetermined amount of lubricating oil 33 is stored. In FIG. 4, reference numeral 31 denotes a fiberscope monitor provided outside the hoisting device, and 32 denotes an amplifier thereof. The sluice gate hoisting device of the present invention has the above-described configuration. Therefore, the electric motor 2 is operated, and the speed reducer 3
When the drive shaft 6 is rotated in one direction via the relay shaft 4 or the relay shaft 4, the rotational force is transmitted to the surrounding gears 16a, 17a, 18a meshed with the gear 6a via the gear 6a,
An attempt is made to rotate these gears 16a, 17a, 18a in opposite directions. However, these gears 16a, 17a,
The gear 18 a meshes with the gear 6 a of the drive shaft 6 on the one hand and meshes with the internal gear 13 a of the fixed ring 13 on the other hand, so that it revolves around the gear 6 a while rotating and rotates the drum 5. Accordingly, during this time, the rotational force of the drive shaft 6 is transmitted to the drum 5 at a reduced speed, and the drum 5 winds up the wire rope 7, thereby lifting the sluice door 10 suspended and supported by the wire rope 7. is there. When the motor 2 is reversed or the brake mechanism (not shown) is released, the water gate door 10 is lowered by rotating the drum 5 in a direction in which the wire rope 7 is unraveled by its own weight, thereby closing the water gate. . As described above, the sluice gate hoisting device of the present invention operates to drive the sluice gate 10 suspended and held via the wire rope 7 to open and close the sluice gate. At this time, as the planetary gear mechanism 11 provided in the drum 5 rotates, the respective parts of the planetary gear mechanism 11 are successively added to the lubricating oil 33 stored in the lower part of the inside of the drum 5.
The lubrication oil 33 is lubricated by being immersed or being repelled in the drum 5 as the mechanism rotates. As described above, in the water gate door hoisting apparatus of the present invention, the drum 5 for winding the wire rope 7 from the drive shaft 6 is used.
Is transmitted via the planetary gear mechanism 11 built in the drum 5, no external mechanism for final deceleration to the drum 5 is required, and the apparatus itself is extremely compact. The load (rotational force) applied to the drum 5 is
Since the light is dispersed by the gears 16a, 17a and 18a and uniformly applied to the central sun gear 6a, an excessive load is not applied to a specific portion of the gear. In addition, the tip (left side in FIG. 4) of the drive shaft 6 and the center shafts 16, 17, 18 of the gears 16a, 17a, 18a are supported so as to be movable to some extent within a range where the meshing of the teeth is not lost. If this is the case, the load distribution at this time will be more reliably achieved, which is desirable. Even if the shaft is provided with play as described above, the load applied to the drum 5 is always in a fixed direction in the water gate door hoisting device of the present invention, so that the operation is smoothly performed without rattling. You. Further, this type of hoisting device is used irregularly, so that the gear 1 stopped on the upper side in the drum 5
6a (or 17a, 18a) is held for a long time without contact with the lubricating oil. In this case as well, in the hoisting device of the present invention, the bearing 16c supporting the gear 16a is centered. Since the oil reservoir 14a communicates with the inside of the oil reservoir 14a through the through hole 16b of the shaft, when the operation is started, the lubricating oil accumulated in the oil reservoir 14a is immediately supplied to the bearing portion 16c, and the malfunction due to the oil shortage is reduced. There is no danger. The supply of the lubricating oil to the oil sump 16c is performed by immersing the oil sump 16c in the lubricating oil 33 collected on the lower side of the inside of the drum 5 during operation of the apparatus. Further, in the hoisting device of the present invention, all gears are housed in the drum 5 and the lubricating oil 33 is housed in the drum 5 in a hermetically sealed state. There is no risk of intrusion. Therefore, the time and effort for the maintenance are not required, and an accidental accident caused by dust and dirt adhering and accumulating at the operation portion is also prevented. As described above, in the water gate hoisting apparatus of the present invention, since the gear mechanism is hermetically housed in the drum 5, it is not possible to directly check the gear wear state from the outside. Although not possible, an endoscope (not shown) is attached to the guide tube 30.
Can be inserted without disassembling the device.
The state of each of the gears 16a, 17a, 18a meshing with a can be observed on an external fiberscope monitor 31. As described above, the water gate hoisting device of the present invention functions. In the illustrated example, three planetary gears 16a, 17a, and 18a are provided. However, if these gears mesh with the gear 6a of the drive shaft 6 and can transmit the driving force to the outer drum 5 at a reduced speed, Well, the number is arbitrary. As described above, according to the present invention, the planetary gear mechanism centered on the drive shaft for rotating the drum is mounted on the drum for winding the wire rope from which the water gate is suspended. Compared with the conventional apparatus using a drum gear and a pinion, the size of the apparatus is reduced, and the gears are not exposed to the outside, so that there is no danger of dust adhering thereto or biting of foreign matter. Therefore, the trouble of maintenance is saved, and an accident is prevented. Further, by reducing the size of the hoisting apparatus, the size of the building installed on the pier can be reduced, and the possibility of impairing the surrounding scenery can be reduced. Further, in the planetary gear mechanism provided inside the drum, a plurality of planetary gears are uniformly meshed around the sun gear, so that the force is dispersed, and an excessive amount of force is applied to a specific portion of the gear as in the prior art. The force is not applied, the operation is performed smoothly, and the wear of the gear is reduced, so that the durability is improved. Further, since a through-hole for communicating an oil reservoir provided on one side of the support plate with the bearing portion is provided inside the central shaft supporting the gears via the bearing portion, it has not been used for a long time. Even in this case, there is an effect that operation failure due to oil shortage hardly occurs, the operation starts smoothly, and the reliability of this type of device is improved. Further, the fixed shaft and the fixed ring are penetrated.
As described above, the guide tube of the endoscope was opened so that the end faced the upper end of the internal gear provided on the inner periphery of the fixed ring, so that inspection of the gear condition of this type of device required disassembly of the device. There is an effect that it can be easily performed from the outside without performing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an embodiment of a water gate hoisting device according to the present invention. FIG. 2 is a right side view of the hoisting device shown in FIG. FIG. 3 is a plan view of the hoisting device shown in FIG. 1; FIG. 4 is an enlarged sectional view of a main part of the hoisting device shown in FIG. FIG. 5 is a sectional view taken along line AA of FIG. 4; FIG. 6 is a conceptual diagram of wiring between a drum and a gate. FIG. 7 is a plan view showing a conventional water gate hoisting device. [Description of Signs] 1 Peer 2 Electric motor 3 Reducer 4 Relay shaft 5 Drum 6 Drive shaft 7 Wire rope 8, 9, 19 Sheave 10 Sluice gate 11 Planetary gear mechanism 12 Fixed shaft 12a Center hole 13 Fixed ring 13a Internal gear 13b Opening 14 Support plate 15 Rotation support members 16, 17, 18 Center shafts 16a, 17a, 18a Gear 30 Guide tube 31 Fiberscope monitor

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Haruhisa Kondo 134 Miyazaki, Noda-shi, Chiba Prefecture Kanto Regional Construction Bureau, Ministry of Construction Edogawa Construction Office (72) Inventor Yasuhide Jinguji 134 Miyazaki 134, Noda-shi, Chiba Prefecture Kanto Regional Construction Bureau, Ministry of Construction In Edogawa Construction Office (56) References JP-A-10-114931 (JP, A) JP-A-1-141172 (JP, A) JP-A-5-209299 (JP, A) (58) Fields investigated (Int .Cl. ⁷ , DB name) E02B 7/20 109 B62D 5/04

Claims (1)

(57) [Claims 1] One end of a wire rope that is installed on a pier of a sluice gate and that suspends a sluice door with a drum connected to a drive source via a drive shaft is wound up. In a water gate door hoisting device, a drive shaft is inserted from one side of the drum into a drum to which one end of a wire rope is fixed, and a fixed shaft is inserted from the other side of the drum so as to face the drive shaft. At the end of the fixed shaft, a fixed ring provided with an internal gear on the inner periphery is attached, and the internal gear of the fixed ring is attached to a central shaft fixed to one side of a support plate on the inner periphery of the drum. A plurality of gears rotatably mounted are engaged with a gear fixed to the drive shaft, and an oil reservoir provided on the other side of the support plate is provided inside the center shaft. A hole is provided to communicate with the By being immersed in the lubricating oil oil reservoir is housed in the lower inner side of the drum, so as to replenish the lubricating oil is made to reservoir oil, and, on
The fixed shaft and the fixed ring have the tip provided on the inner circumference of the fixed ring.
A guide tube opened to face the upper end of the
Endoscope provided so as to pass through and inserted into the guide tube
A gear gate hoisting device characterized in that the gears can be inspected from the outside by using the above.