JP2019127790A - Opening/closing apparatus for sluice gate - Google Patents

Abstract

To provide an opening/closing apparatus for sluice gate that can guide a chain stably to a mechanism supporting the chain.SOLUTION: An opening/closing apparatus for sluice gate 10 winds up a chain 12 provided with an engaging part 11 by means of rotational driving of a drive sprocket 13 and lifts a door body W joined to the chain 12. The opening/closing apparatus for sluice gate 10 includes a decelerating mechanism 18 that has a motor 16 and a first output shaft 27 joined to the center of the drive sprocket 13, and provides driving force of the motor 16 for drive sprocket 13; chain holding means 19 that supports the wound-up chain 12 by the engaging part 11 being hooked to the chain holding means 19; a guide sprocket 46 to which the chain 12 is hooked and that guides the chain 12 to the chain holding means 19; and power transmission means 56 that conveys driving force output from the decelerating mechanism 18 to the guide sprocket 46 to rotate the guide sprocket 46. The decelerating mechanism 18 has a second output shaft 26 providing driving force for power transmission means 56.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sluice gate opening and closing device for raising and lowering a door of a sluice gate.

A sluice gate opening / closing device is installed in a sluice such as a waterway or a river to rotate a sprocket to wind up a chain and raise a door connected to the chain. Patent Literatures 1 and 2 describe specific examples of a sluice gate opening / closing device provided with a mechanism for supporting a chain by providing a plurality of hanging regions in a rolled up chain. By supporting the chain in such a manner, it is not necessary to connect the counterbalance to the chain, and the entire lock device can be made compact.
In particular, in the water gate opening and closing device described in Patent Document 2, the corresponding mechanism is disposed at a position higher than the sprocket for the purpose of improving the maintenance of the mechanism for supporting the chain. This is because the gate opening and closing device secures the working space of the worker at a position higher than the support base that supports the housing to which the sprocket is attached.

Japanese Patent Application Laid-Open No. 9-31949 JP 2005-188058 A

However, Patent Document 2 does not adopt a mechanism for stably guiding the chain with respect to the mechanism for supporting the rolled up chain, and the chain slackens in the region between the sprocket and the mechanism for supporting the chain. Was a problem that
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mechanism for supporting a chain with a gate opening and closing device capable of stably guiding the chain.

The sluice gate opening and closing device according to the present invention that meets the above-described object is a sluice gate opening and closing device that winds up a chain provided with a locking portion by a rotational drive of a drive sprocket and lifts a door connected to the chain. A first output shaft connected to the center of the drive sprocket, the speed reduction mechanism for applying the driving force of the motor to the drive sprocket, and the chain that has been wound up, A chain holding means for supporting, a guide sprocket for hanging the chain and guiding the chain to the chain holding means, and a power transmission means for transmitting the driving force output from the speed reduction mechanism to the guide sprocket for rotation. And the speed reduction mechanism has a second output shaft that provides a driving force to the power transmission mechanism.

In the sluice gate opening and closing apparatus according to the present invention, the first and second output shafts rotate in opposite directions, and the power transmission means is coaxial with the sprocket A connected to the second output shaft and the guide sprocket. A gear B that rotates integrally with the gear B, a gear C that meshes with the gear B, a sprocket D that rotates integrally with the gear C, and an endless chain that spans the sprockets A and D. It is preferable to have

In the sluice gate opening and closing apparatus according to the present invention, the first and second output shafts rotate in the same direction, and the power transmission means is coaxial with the sprocket E connected to the second output shaft and the guide sprocket. It is preferable to have the sprocket F integrally rotated above, and the endless chain chained around the said sprockets E and F. As shown in FIG.

A sluice gate opening and closing device according to the present invention has a first output shaft connected to the center of a drive sprocket that winds up a chain to which a door body is connected, a speed reduction mechanism for applying a driving force of a motor to the drive sprocket, and a chain holding A guide sprocket for guiding the chain to the means, and a power transmission means for transmitting the driving force output from the speed reduction mechanism to the guide sprocket for rotation, and the speed reduction mechanism has a second output shaft for applying the driving force to the power transmission mechanism Therefore, the guide sprocket can be rotationally driven by the driving force of the motor, and the wound up chain can be stably guided to the chain holding member.

It is a front view of a sluice gate switching device concerning one embodiment of the present invention. It is a top view of the same water gate switching device. It is explanatory drawing of the chain of the same water gate switching device. It is an explanatory view showing the relation of gears B and C.

Next, embodiments of the present invention will be described with reference to the attached drawings for understanding of the present invention.
As shown in FIG. 1 and FIG. 2, the water gate opening and closing device 10 according to the embodiment of the present invention winds up a chain 12 (see FIG. 3) provided with the locking portion 11 by rotational driving of the drive sprocket 13. It is an apparatus for raising the door W connected to the chain 12. The details will be described below.

As shown in FIGS. 1 and 2, the sluice gate opening and closing device 10 includes a chain 12 having one end connected to the door body W, a drive sprocket 13 on which the chain 12 is hung (locked), and a base portion Q. A support base 14 fixed to the support base 15, a housing 15 mounted on the support base 14, a motor 16 and a manual handle 17 attached to the housing 15, and a driving force of the motor 16 or a rotational force of the manual handle 17. 13, and a chain holding means 19 for supporting the chain 12 wound up by the drive sprocket 13.

The speed reduction mechanism 18 includes a gear 20 that is rotationally driven by driving the motor 16, a gear 21 that meshes with the gear 20, a gear 22 that rotates coaxially with the gear 21, and a gear 23 that meshes with the gear 22. A gear 24 that rotates integrally with the gear 23 and a gear 25 that meshes with the gear 24 are provided.

A common rotating shaft 26 (second output shaft) is connected to the centers of the gears 23 and 24, and a common rotating shaft 27 (first output shaft) is connected to the center of the gear 25 and the center of the drive sprocket 13. It is connected. That is, in addition to the gears 20 to 25, the speed reduction mechanism 18 has rotating shafts 26 and 27. The rotating shafts 26 and 27 are arranged horizontally and rotate in the opposite direction. The center of the sprocket 28 (sprocket A) is connected to the rotating shaft 26, and the rotating shaft 27 is connected to the center of the drive sprocket 13. Therefore, the driving force of the motor 16 input to the speed reduction mechanism 18 is applied from the rotating shaft 26 to the sprocket 28 and is applied from the rotating shaft 27 to the driving sprocket 13.

The reduction mechanism 18 transmits the driving force of the motor 16 in the order of the gears 20, 21, 22, and 23, the rotating shaft 26, the gears 24, 25 and the rotating shaft 27, and the rotational speeds of the rotating shafts 26 and 27 are gears. It is designed to be slower than 20 rotation speeds. Therefore, the sprockets 28 and the drive sprockets 13 are rotationally driven by being provided with driving forces of torque larger than the torque of the driving force of the motor 16 input to the reduction mechanism 18 from the rotary shafts 26 and 27 respectively.
The speed reduction mechanism 18 has a plurality of rotation shafts such as a rotation shaft of the gear 20 and a rotation shaft of the gears 21 and 22 in addition to the rotation shafts 26 and 27. Of the plurality of rotation shafts of the reduction mechanism 18, the rotation shaft 27 is driven to rotate with the largest torque, and the rotation shaft 26 is driven to rotate with the second largest torque.

Normally, the manual handle 17 can be switched between a state in which power is not applied to the gear 20 and a state in which power is applied to the gear 20. When the motor 16 cannot be operated due to a power failure or the like, the worker can move the manual handle 17. Once the gear 20 is powered, the drive sprocket 13 can be rotated by turning the manual handle 17.

As shown in FIG. 3, the chain 12 hung on the drive sprocket 13 includes a plurality of connection pins 30 disposed in parallel and spaced in the longitudinal direction of the chain 12 and a large number of plate members 31.
Each plate 31 is long along the longitudinal direction of the chain 12, and both end portions are rotatably attached to the two connecting pins 30. Each of the connection pins 30 is provided with plate attachment areas 32, 33, 34 to which a plurality of plate members 31 are attached in a close contact state on one side, center and the other side, respectively, between the plate attachment areas 32, 33, In addition, plate material non-mounting regions 35 and 36 to which the plate material 31 is not attached are provided between the plate material mounting regions 33 and 34, respectively.

In the chain 12, the teeth of the drive sprocket 13 are inserted between the plate material non-mounting areas 35 of the connecting pins 30 adjacent in the longitudinal direction and between the plate material non-mounting areas 36 of the connecting pins 30 adjacent in the longitudinal direction. Thus, the drive sprocket 13 is hung from above.
Wheels 37 and 38 are rotatably mounted on both ends of the connecting pin 30 at a plurality of connecting pins 30 provided in a predetermined range from the other end on the chain 12 to which the door W is connected at one end. ing. In the present embodiment, one locking portion 11 is mainly constituted by wheels 37 and 38 attached to one connecting pin 30.

As shown in FIGS. 1 and 2, the sluice gate opening and closing device 10 is fixed to the pillar members 39 and 40 fixed to the support base 14 at intervals, and to the pillar members 39 and 40, respectively. Long support members 41 and 42 with end portions attached thereto, a rotary shaft 45 rotatably attached to bearing members 43 and 44 fixed to the upper portions of the pillar members 39 and 40, respectively, and attached to the rotary shaft 45 And a guide sprocket 46 on which the chain 12 is hung. The rotating shaft 45 is arranged horizontally. In the present embodiment, the chain holding means 19 is mainly configured by the support members 41 and 42.

The chain 12 is hung on the drive sprocket 13 sequentially from one end to the other end, and is spanned on sprockets 49 and 50 provided diagonally below the drive sprocket 13 and on a guide sprocket 46, The state where the slack does not occur is maintained from one end where the door body W is connected to the portion hung on the guide sprocket 46.
The support members 41 and 42 and the guide sprocket 46 are located diagonally above the drive sprocket 13, and the support members 41 and 42 are disposed in parallel at a lower position than the guide sprocket 46.

The guide sprocket 46 and the drive sprocket 13 have the same radius and the same number of teeth, and the chain 12 has a plate material non-contact between the plate members non-mounting areas 35 of the connection pins 30 adjacent in the longitudinal direction and With the teeth of the guide sprocket 46 inserted between the mounting areas 36, the guide sprocket 46 is suspended from above.
The guide sprocket 46 rotates in the same direction as the drive sprocket 13 and guides the chain 12 to the support members 41 and 42.

The support members 41 and 42 support the chain 12 in a state where the wheels 38 and 37 are hooked from above and the respective regions between the wheels 37 (wheels 38) hang down. In the present embodiment, the support members 41 and 42 are inclined and the chain 12 guided by the support members 41 and 42 is placed on the support members 41 and 42 of the wheels 37 and 38 due to the weight of the chain 12. Move in a direction away from the guide sprocket 46.

The rotating shaft 45 penetrates the center of the guide sprocket 46 between the bearing members 43 and 44, and one end thereof protrudes from the bearing member 43. A gear 51 (gear B) is connected to a portion of the rotation shaft 45 which protrudes from the bearing member 43 as shown in FIGS. 1, 2 and 4. Therefore, the gear 51 rotates integrally with the guide sprocket 46 coaxially.

A shaft 52 having one side projecting from the column 39 is rotatably attached to the columns 39 and 40, and a portion of the shaft 52 projecting from the column 39 is engaged with the gear 53 (gear 53) Gear C) is connected to sprocket 54 (sprocket D) arranged at a distance from gear 53.
The shaft 52 is horizontally disposed on the lower side of the rotation shaft 45, and the gear 53 passing through the center of the shaft 52 is disposed directly below the gear 51 as shown in FIG. ing.

Further, an endless chain 55 is stretched around the sprocket 54 and the sprocket 28 coaxially rotating with the gear 53. Therefore, the driving force of the motor 16 output from the rotating shaft 26 of the speed reduction mechanism 18 to the sprocket 28 is transmitted in order through the endless chain 55, the sprocket 54, the shaft 52, the gear 53, the gear 51, and the rotating shaft 45 to guide the sprocket 46. And the guide sprocket 46 rotates.

In the present embodiment, the power transmission means 56 that transmits the driving force output from the speed reduction mechanism 18 to the guide sprocket 46 and rotates the sprockets 28 and 54, the gears 51 and 53, the shaft 52, the rotating shaft 45, and the endless shaft. A chain 55 is used. Therefore, the rotating shaft 26 gives the driving force of the motor 16 to the power transmission means 56.
Since the guide sprocket 46 is located at a higher position than the sprocket 50, when the chain 12 is wound up, a driving force for lifting the chain 12 from the position of the sprocket 50 to the position of the guide sprocket 46 is required. In this embodiment, the driving force of the motor 16 is used as the driving force, and the driving force of the motor 16 is transmitted via the speed reduction mechanism 18 and the power transmission means 56 so that the guide sprocket 46 is rotationally driven.

Here, the sprocket 28 connected to the rotation shaft 26 has a rotational direction opposite to that of the drive sprocket 13 connected to the rotation shaft 27 and has a high rotational speed. The power transmission means 56 adjusts the rotational direction and rotational speed of the sprocket 28 that is rotated by a driving force from the rotary shaft 26 by adjusting the meshing of the gears 51 and 53 and the gear ratio of the gears 51 and 53. The sprocket 46 rotates at the same speed in the same direction as the drive sprocket 13.

When the drive sprocket 13 is rotationally driven by the operation of the motor 16 and the chain 12 starts to be wound up, the rotational driving force of the rotary shaft 26 is applied to the guide sprocket 46 by the power transmission means 56, and the guide sprocket 46 is the same as the drive sprocket 13. Rotate at the same speed in the direction. As a result, the amount by which the drive sprocket 13 winds up the chain 12 per unit time can be made equal to the amount by which the guide sprocket 46 guides the chain 12 to the support members 41 and 42 per unit time.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the above-mentioned form, The change of the conditions which do not deviate from a summary, etc. are all the application scopes of this invention.
For example, the second output shaft need not be driven to rotate with the second largest torque in the speed reduction mechanism.
Alternatively, the speed reduction mechanism may be designed such that the second output shaft rotates in the same direction as the first output shaft, in which case the power transmission means is mainly a sprocket connected to the second output shaft. By forming by E, a sprocket F integrally rotating coaxially with the guide sprocket, and an endless chain stretched over the sprockets E and F, a rotational driving force in the same direction as the drive sprocket with respect to the guide sprocket Can be given.

The guide sprocket may guide the chain from the far side to the near side of the drive sprocket, and the chain holding means may support the chain between the drive sprocket and the guide sprocket. In that case, the speed reduction mechanism and the power transmission means Is designed to drive the guide sprocket to rotate in the opposite direction to the drive sprocket.

10: Sluice opening and closing device, 11: Locking part, 12: Chain, 13: Drive sprocket, 14: Support base, 15: Housing, 16: Motor, 17: Manual handle, 18: Reduction mechanism, 19: Chain holding means, 20-25: Gear, 26, 27: Rotating shaft, 28: Sprocket, 30: Connecting pin, 31: Plate material, 32, 33, 34: Plate material mounting region, 35, 36: Plate material non-mounting region, 37, 38: Wheel , 39, 40: pillar material, 41, 42: support member, 43, 44: bearing member, 45: rotating shaft, 46: guide sprocket, 49, 50: sprocket, 51: gear, 52: shaft, 53: gear, 54: Sprocket, 55: Endless chain, 56: Power transmission means, Q: Base, W: Door

Claims (3)

In the sluice gate opening and closing device that winds up the chain provided with the locking portion by the rotational drive of the drive sprocket and raises the door connected to the chain,
Motor,
A speed reduction mechanism that has a first output shaft connected to the center of the drive sprocket, and that applies a driving force of the motor to the drive sprocket;
Chain holding means for supporting the rolled-up chain with the latching portion hooked thereto;
A guide sprocket for hanging the chain and guiding the chain to the chain holding means;
Power transmission means for transmitting the driving force output from the speed reduction mechanism to the guide sprocket for rotation;
The sluice gate opening and closing device, wherein the speed reduction mechanism has a second output shaft that applies a driving force to the power transmission mechanism. 2. The sluice gate opening and closing device according to claim 1, wherein the first and second output shafts rotate in opposite directions, and the power transmission means includes a sprocket A coupled to the second output shaft, the guide sprocket, A gear B that rotates integrally on the same axis, a gear C that meshes with the gear B, a sprocket D that rotates integrally on the same axis as the gear C, and an endless chain spanned between the sprockets A and D And a sluice opening and closing device characterized by having. 2. The sluice gate opening and closing device according to claim 1, wherein the first and second output shafts rotate in the same direction, and the power transmission means includes a sprocket E connected to the second output shaft, the guide sprocket, A sluice gate opening / closing device characterized by having a sprocket F coaxially and integrally rotating, and an endless chain stretched around said sprockets E and F.

Images