JPH10114931A - Lifting device for sluice gate door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the size of a building on a pier, to prevent the damage of a surrounding landscape, to prevent exposure of a gear to the outside, to reduce time and labor required for maintenance and to prevent the occurrence of an unexpected accident due to inclusion of a foreign matter by a method wherein the size of a hoisting device for a sluice gate door arranged on the pier of a sluice gate is reduced. SOLUTION: A hoisting device is arranged on the pier of a sluice gate and one end of a wire rope 7 to suspend the sluice gate is hoisted by a drum 5 coupled to a drive source through a drive shaft 6. In this case, the drive shaft 6 to transmit a rotation force to the drum 5 is penetrated in the drum 5 at which one end of the wire rope 7 is fixed. A gear 6a is arranged at the tip of the drive shaft 6, a planetary gear mechanism 11 having the gear 6a forming a sun gear is arranged in the drum 5, and rotation of the drive shaft 6 is decelerated and transmitted to the drum 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sluice gate hoisting device installed on a sluice pier to wind up one end of a wire rope suspended from a sluice gate.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional sluice 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-described conventional water gate door hoisting apparatus, a drive shaft provided with a pinion that meshes with a drum gear for transmitting the rotation of a relay shaft to a drum is rotatable on a pier outside the drum. Since the load on the gate is applied to the drum via a wire rope, to reduce the load on the center axis of the drum, drum gears must be installed on both sides of the drum and each drive shaft Had to engage with the pinion. 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]

According to the present invention, a wire is provided on a pier of a sluice gate, and the sluice door is suspended by a drum connected to a drive source via a drive shaft. In a water gate door hoisting device in which one end of a rope is wound, a drive shaft for transmitting a driving force for rotationally driving the drum is inserted into a drum to which one end of a wire rope is fixed, and the drive shaft is A planetary gear mechanism with the gear fixed to the sun gear is installed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on the illustrated embodiments.

In the drawings, the same functional portions 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 designates a sheave similarly attached to the pier 1, and 7a designates 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 end 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;
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 reservoir containing lubricating oil, and the lubricating oil therein is provided with a through hole 16 provided in the central shaft 16.
b supplies the gear 16a to a peripheral bearing portion 16c that rotatably supports the gear 16a.

A hoisting apparatus for a water gate door according to 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,
18a meshes with the gear 6a of the drive shaft 6 on one side and meshes with the internal gear 13a of the fixed ring 13 on the other side, so that it revolves around the gear 6a while rotating, and is connected via the support plate 14. The drum 5 is rotated. 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, and the water gate is closed. .

As described above, the sluice gate hoisting apparatus 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.

As described above, in the water gate door hoisting device 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 performed, 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.

In the illustrated example, three gears 16a, 17a and 18a serving as planetary gears are provided. These gears mesh with the gear 6a of the drive shaft 6 to reduce the driving force to the outer drum 5. Any number can be used. Further, in the example, the fixed ring 13 is provided in the drum 5 and the internal gear 13a is provided on the inner periphery thereof. However, the internal gear 13a may be provided directly or integrally on the inner periphery of the drum 5. good. In this case, each gear 16a,
The center axes 16, 17, 18 of 17a, 18a are fixed shafts 1
It is connected and fixed to two sides.

[0023]

As described above, according to the present invention, since a planetary gear mechanism centered on a drive shaft for rotating and driving this drum is mounted on a drum for winding a wire rope from which a water gate is hung, a conventional drum gear is used. As compared with the apparatus using a pinion, the size of the apparatus is reduced, and each gear is not exposed to the outside, so that there is no danger of dust adhering thereto or foreign matter being bitten. Therefore, the trouble of maintenance is saved, and an accident is prevented.

In addition, since the hoisting device is reduced in size, the building installed on the pier can be made smaller, and the risk of impairing the surrounding scenery can be reduced.

Further, in the planetary gear mechanism provided inside the drum, since a plurality of planetary gears are uniformly meshed around the sun gear, the force is dispersed, and an excessively large amount of force is applied to a specific portion of the gear as in the conventional case. The force is not applied, the operation is performed smoothly, and the wear of the gear is reduced, so that the durability is improved.

[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.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Peer 2 Electric motor 3 Reduction gear 4 Relay shaft 5 Drum 6 Drive shaft 7 Wire rope 8, 9, 19 Sheave 10 Lock gate 11 Planetary gear mechanism 12 Fixed shaft 13 Fixed ring 13a Internal gear 14 Support plate 14a Oil reservoir 15 Rotation support Member 16, 17, 18 Center shaft 16a, 17a, 18a Gear 16b Through hole 16c Bearing

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masaru Takeuchi 2-26-7 Yonukijima, Konohana-ku, Osaka Hanshin Power Machinery Co., Ltd. (72) Inventor Haruhisa Kondo 134 Miyazaki 134 Noda-shi, Chiba Pref. Edogawa Construction Office (72) Inventor Yasuhide Jinguji Temple 134 Miyazaki, Noda-shi, Chiba Kanto Regional Construction Bureau Edogawa Construction Office

Claims (1)

[Claims] 1. A sluice gate hoisting device, wherein one end of a wire rope that is installed on a sluice pier and is connected to a driving source via a drive shaft and suspends the sluice door by a drum is wound up. A drive shaft for transmitting a driving force for rotationally driving the drum is penetrated into the drum to which one end of the rope is fixed, and a planetary gear mechanism having a gear fixed to the drive shaft as a sun gear is provided. A sluice gate hoisting device.