JP2018105017A - Wire rope winch type gate opening and closing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gate opening and closing apparatus of a wire rope winch type which can be operated even when the power supply is lost, and is simple and compact in structure.SOLUTION: A gate opening and closing apparatus S1 comprises: a door body 2 which opens and closes a water gate 1; a wire rope 3 which suspends the door body 2; a rotatable wire drum 4 which winds the wire rope 3; a speed reducer 8; an electric motor 25; a hydraulic motor 29; and a hydraulic circuit C1. The speed reducer 8 has an input shaft 11, an output shaft 9, and a gear mechanism. The electric motor 25 is connected to the input shaft 11, and has an electric motor rotating shaft which rotationally drives the input shaft 11. The hydraulic motor 29 is connected to a first intermediate shaft 12 of the gear mechanism and has a hydraulic motor rotating shaft 31 which rotationally drives the first intermediate shaft 12 or is rotationally driven by the first intermediate shaft 12. The hydraulic circuit C1 circulates a hydraulic fluid between the hydraulic motor 29 and a hydraulic fluid storage tank 34 which stores the hydraulic fluid.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wire rope winch type gate opening / closing device that lifts a door body that opens and closes a sluice or land by power while raising the door body by its own weight.

  In general, in waterways such as rivers, in order to close waterways appropriately and store water, to increase the water level and to flow water to branch waterways, etc., to adjust the flow rate of water in the waterway, A water gate for closing or opening the water channel is provided. In addition, a break wall such as a seawall or a river dike is usually opened for traffic, etc., and closed when a tsunami or water increases, a flood wall gate is provided. And as such a sluice or land anchor, the door body is raised by power to open the waterway or break, while it is lowered by its own weight to close the waterway or break. The device is widely used. Such a self-descending gate opening and closing device can close the sluice gate or land anchor by dropping the door body under its own weight even when the power source loses its function in the event of a disaster such as an earthquake or typhoon. It is advantageous for preventing or reducing damage caused by tsunami.

  The self-weight descending gate opening / closing device generally has a wire rope that suspends the door body, a rotatable wire drum that winds the wire rope, and a drum drive mechanism that includes an electric motor, a speed reducer, and the like. Rotate the wire drum and wind the wire rope to lift the door and open the gate (wire rope winch type). When the gate is closed, the mechanical engagement between the electric motor and the wire drum is released, the door body is lowered by its own weight, the wire rope is unwound, and the gate is closed (for example, Patent Document 1). To 3).

JP 2013-50019 A JP 2014-47471 A Japanese Patent Laying-Open No. 2015-71922

  However, for example, in the conventional wire rope winch type gate opening / closing device disclosed in Patent Documents 1 to 3, the drum driving mechanism is very equipped with an electric motor, a plurality of brake devices, a differential gear mechanism, a reduction gear, and the like. There is a problem that the construction cost and the operation cost are high because the structure is large and the structure is complicated. As will be described later, when a spare motor or a spare engine is installed in addition to a normal motor, the structure becomes more complicated, and the construction cost and operation cost become higher.

  Also, with conventional wire rope winch type gates, motors and control panels usually operate with power supplied from a commercial power source. Therefore, when a commercial power source does not function during a disaster such as an earthquake or typhoon (power loss) ), Or when the electric motor or the control panel is damaged or destroyed (hereinafter, this situation is referred to as “emergency”), there is a problem that it is difficult to open and close the gate. In view of this, it is desirable that a wire rope winch type gate opening / closing device be provided with equipment that enables opening and closing of the gate in an emergency.

  For example, according to the Ministry of Land, Infrastructure, Transport and Tourism “Technical Standards for Dam and Weir Facilities (Draft)” and “Guide for Opening and Closing Equipment (Mechanical) Design Guidelines (Draft)”, the sluice facility (gate) As the “equipment”, there is a guideline that it is desirable to install a standby motor in consideration of the safety and certainty of operation and to provide a dedicated standby power generation facility on the machine side. Furthermore, the gate switchgear is a main power source as a fault tolerant, that is, as a means to maintain the function by switching to a spare system even if some of the components fail or stop, and to keep it operating normally. In addition to the above, it is recommended to use a redundant power source that provides an appropriate reserve power source according to the importance of the equipment and ensures a minimum switching function even in the event of a failure.

  In general, a wire handle winch type gate opening / closing device is provided with a manual handle, but it is extremely difficult to quickly open and close the gate with the manual handle in an emergency. Further, as a backup power source for an existing electric motor, it is conceivable to connect a “portable shaft switch” to the switching device. However, in a commonly used portable shaft switch, the gate opening / closing speed is about 0. The operation is very slow, 01 m / min, and it is necessary to stop and cool the operation appropriately due to abnormal heat generation of the flexible shaft. Even if an opening / closing mechanism is used in place of the portable shaft opening / closing device, the internal gear of the switching device was developed on the premise of manual operation. Have difficulty. For this reason, a more practical standby power source is needed.

  Therefore, it is conceivable to provide a standby generator as a backup for the commercial power supply. However, such a measure has a problem that the equipment cost is very high, and it cannot be used when the motor or the control panel is damaged or destroyed.

  In addition, as a general standby power system for a wire rope winch type gate opening / closing device, a method of permanently installing a standby power source, such as installing a spare motor or a spare engine, can be considered. Such a permanent power source has excellent speediness as a backup for equipment that has a very high social impact at the time of failure, but both require large capital investment and maintenance costs. In addition, there is a problem that a considerably large installation space is required. Although the method of installing the spare motor has the advantage that the switching operation is unnecessary and the operation method is as easy as the normal motor, there is a problem that it is not used when the control panel is damaged or destroyed. is there. In addition, the method of installing the spare engine has an advantage that it can be operated even when the power is lost or the control panel is broken, but there is a problem that a periodic test operation is necessary because a start failure is likely to occur.

  The present invention has been made to solve the above-described conventional problems, and is capable of quickly opening and closing the gate in an emergency. The structure is simple and compact, and the cost required for installation and maintenance is low. An object to be solved is to provide a wire rope winch type gate opening and closing device.

  The wire rope winch type gate opening / closing device according to the first aspect of the present invention, which has been made to solve the above-mentioned problems, raises a door body that opens and closes a sluice or land by an elevating operation while powering the door body. Is configured to descend by its own weight (gravity). The gate opening / closing device includes a wire rope, a rotatable wire drum, a speed reducer, an electric motor, a hydraulic motor, a hydraulic circuit, and an emergency hydraulic device.

  Here, the wire rope hangs (hangs) the door body. The wire drum winds (winds) a wire rope. The speed reducer is mechanically engaged with (or coupled to) the rotating shaft of the wire drum, and the output shaft that rotationally drives the rotational shaft or is rotationally driven by the rotational shaft (reverse rotational drive); and the input shaft; A gear mechanism (meshing gear mechanism) that decelerates the rotation of the input shaft and transmits it to the output shaft, or accelerates the rotation of the output shaft and transmits it to the input shaft. The electric motor is mechanically engaged with (or coupled to) the input shaft, and has an electric motor rotating shaft that is driven to rotate by the input shaft. The hydraulic motor is mechanically engaged with the input shaft or the gear rotation shaft (intermediate shaft) of the gear mechanism other than the input shaft and the output shaft, and rotates or drives the input shaft or the gear rotation shaft (intermediate shaft). It has a hydraulic motor rotation shaft that is driven to rotate (reverse rotation drive) by a shaft or gear rotation shaft (intermediate shaft). The hydraulic circuit circulates hydraulic oil between the hydraulic motor and the hydraulic oil storage tank. The emergency hydraulic apparatus can be connected to a hydraulic circuit arbitrarily (or appropriately) to supply / discharge hydraulic oil to / from the hydraulic motor.

  A wire rope winch type gate opening / closing device according to a second aspect of the present invention includes a wire rope, a rotatable wire drum, a speed reducer, an electric motor, a hydraulic motor, a hydraulic circuit, and an emergency hydraulic device. I have. In this gate opening and closing device, the hydraulic motor is mechanically engaged with (or coupled to) the motor rotation shaft, and rotates the input shaft via the motor rotation shaft or without the motor rotation shaft. It has a hydraulic motor rotating shaft that is rotated (reversely driven) by an input shaft. Other configurations of the gate opening / closing device are the same as those of the gate opening / closing device according to the first aspect of the present invention.

  In the wire rope winch type gate opening / closing device according to the second aspect of the present invention, the hydraulic motor rotating shaft is mechanically connected to the motor rotating shaft on the side opposite to the side where the motor rotating shaft is dynamically engaged with the input shaft. It may be engaged. Further, the hydraulic motor rotating shaft may be engaged with the electric motor rotating shaft on the side where the electric motor rotating shaft is mechanically engaged with the input shaft. In this case, the input shaft, the electric motor rotating shaft, and the hydraulic motor rotating A power switching device for making a differential between the electric motor rotating shaft and the hydraulic motor rotating shaft may be disposed between the shaft and the shaft.

  In the gate opening and closing apparatus according to the first to second aspects of the present invention, the hydraulic circuit includes a first hydraulic oil passage connecting one hydraulic oil supply / discharge port of the hydraulic motor and the hydraulic oil storage tank, and the other hydraulic hydraulic motor. It is preferable to have a second hydraulic oil passage connecting the hydraulic oil supply / discharge port and the hydraulic oil storage tank. In this case, the first hydraulic oil passage includes a first on-off valve that opens and closes the first hydraulic oil passage, and a first external connection port that communicates with the first hydraulic oil passage on the hydraulic motor side of the first on-off valve. On the other hand, the second hydraulic oil passage is connected to the second on-off valve that opens and closes the second hydraulic oil passage, and the second external connection that communicates with the second hydraulic oil passage on the hydraulic motor side from the second on-off valve. A port is preferably interposed. The emergency hydraulic apparatus has a port connector that can be connected to the first external connection port (and / or the second external connection port) at one end, and a hydraulic oil container ( For example, a first oil passage provided with a hydraulic oil supply / discharge port that can be introduced into a hydraulic oil storage tank) and a second external connection port (and / or a first external connection port) at one end A second oil passage having a port connector that can be installed and a hydraulic oil supply / discharge port that can be introduced into a hydraulic oil container (for example, a hydraulic oil storage tank) at the other end; A hydraulic pump that is interposed in one oil passage or the second oil passage and is driven by a power source that operates independently, and that spans across the first oil passage and the second oil passage on the port connector side from the hydraulic pump. The hydraulic oil supply / discharge route in the first oil passage and the second oil passage is cut off. Obtain the oil passage switching device (e.g., the oil passage switching valve) preferably comprises a.

  A wire rope winch type gate opening / closing device according to a third aspect of the present invention includes a wire rope, a wire drum, a speed reducer, a hydraulic motor, a hydraulic oil supply / discharge device, and an emergency hydraulic device. . In this gate opening and closing device, the hydraulic motor is mechanically engaged with (or connected to) the input shaft, and the input shaft is rotationally driven or rotationally driven by the input shaft (reverse rotationally driven). Have The hydraulic oil supply / discharge device supplies / discharges hydraulic oil to / from the hydraulic motor via two hydraulic oil supply / discharge passages connected to the hydraulic motor. The emergency hydraulic apparatus can be connected to the hydraulic oil supply / discharge passage arbitrarily (or appropriately) to supply / discharge hydraulic oil to / from the hydraulic motor. The gate opening / closing device does not include an electric motor. Other configurations of the gate opening / closing device are the same as those of the gate opening / closing device according to the first aspect of the present invention.

  In the gate opening and closing device according to the third aspect of the present invention, the hydraulic oil supply / discharge passage includes a first hydraulic oil passage connected to one hydraulic oil supply / discharge port of the hydraulic motor and the other hydraulic oil supply of the hydraulic motor. It is preferable to have a second hydraulic oil passage connected to the exhaust port. In this case, the first hydraulic oil passage includes a first on-off valve that opens and closes the first hydraulic oil passage, and a first external connection port that communicates with the first hydraulic oil passage on the hydraulic motor side of the first on-off valve. On the other hand, the second hydraulic oil passage is connected to the second on-off valve that opens and closes the second hydraulic oil passage, and the second external connection that communicates with the second hydraulic oil passage on the hydraulic motor side from the second on-off valve. A port is preferably interposed. The emergency hydraulic apparatus has a port connector that can be connected to the first external connection port (and / or the second external connection port) at one end, and a hydraulic oil container ( For example, a first oil passage provided with a hydraulic oil supply / discharge port that can be introduced into a hydraulic oil storage tank) and a second external connection port (and / or a first external connection port) at one end A second oil passage having a port connector that can be installed and a hydraulic oil supply / discharge port that can be introduced into a hydraulic oil container (for example, a hydraulic oil storage tank) at the other end; A hydraulic pump interposed in one oil passage or a second oil passage and driven by a power source (for example, a diesel engine) operating independently, and the first oil passage and the second oil passage on the port connector side from the hydraulic pump Between the first oil passage and the second oil. Preferably, and an oil passage switching device for switching the hydraulic oil supply and discharge paths in.

  The gate opening and closing device according to the first to third aspects of the present invention does not require a large and complicated power transmission mechanism such as a plurality of brakes or a differential gear mechanism, and is a large spare motor or spare as in the prior art. Since there is no need to install an engine, the structure of the gate opening / closing device or the self-weight drop type gate provided with the gate opening / closing device can be made compact and simplified. Even when a power source such as a commercial power source loses its function during a disaster such as an earthquake or typhoon, the emergency hydraulic system can open and close the gate (sluice or land) to open and close the gate. Disasters caused by tsunamis can be prevented or reduced. In this case, the emergency hydraulic device is extremely simple and compact as compared with other reserve power sources, and is low in cost, and thus is extremely advantageous as a reserve power source.

1A is a schematic partial sectional side view of a wire rope winch type gate opening / closing device according to Embodiment 1 of the present invention, and FIG. 1B is a gate opening / closing device shown in FIG. FIG. FIG. 2 is a hydraulic circuit diagram showing the configuration of the hydraulic oil supply device of the gate opening / closing device shown in FIG. FIG. 3 is a schematic side view of an emergency hydraulic device used in the gate opening / closing device shown in FIG. FIG. 4 is a partial cross-sectional plan view of a wire rope winch type gate opening / closing device according to a modification of the first embodiment of the present invention. FIG. 5A is a schematic partial sectional side view of a wire rope winch type gate opening / closing device according to Embodiment 2 of the present invention, and FIG. 5B is a gate opening / closing device shown in FIG. FIG. FIG. 6 is a hydraulic circuit diagram showing the configuration of the hydraulic oil supply device of the gate opening / closing device shown in FIG. FIG. 7A is a schematic partial sectional side view of a wire rope winch type gate opening / closing device according to Embodiment 3 of the present invention, and FIG. 7B is a gate opening / closing device shown in FIG. FIG. FIG. 8 is a hydraulic circuit diagram showing the configuration of the hydraulic oil supply device of the gate opening / closing device shown in FIG. FIGS. 9A to 9D are schematic views showing some specific examples of the engagement form of the electric motor and the hydraulic motor in the gate opening / closing apparatus according to the second embodiment of the present invention. 10 (a) to 10 (d) show an embodiment of the present invention in which a power switching device for differentially driving an electric motor rotating shaft and a hydraulic motor rotating shaft is disposed between an input shaft, an electric motor rotating shaft, and a hydraulic motor rotating shaft. It is a schematic diagram which shows the specific example of the gate opening / closing apparatus which concerns on Embodiment 2. FIG.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings.
(Embodiment 1)
Hereinafter, a wire rope winch type gate opening / closing device S1 used for a self-weight drop type sluice according to Embodiment 1 of the present invention will be described with reference to FIGS. Note that the gate opening / closing device S1 according to the first embodiment can also be applied to a self-descent landfall.
As shown in FIG. 1 (a) and FIG. 1 (b), a sluice 1 installed in a waterway (not shown) such as a river or an agricultural waterway raises a door body 2 that opens and closes the sluice by a lifting operation. On the other hand, the door body 2 is lowered by its own weight. That is, the sluice 1 is opened and closed by the raising and lowering operation of the door body 2. The door body 2 is suspended by a wire rope 3, and the wire rope 3 is wound around a wire drum 4. The wire drum 4 is coaxially attached to the rotary shaft 5 located at the center thereof, and rotates integrally with the rotary shaft 5. The rotating shaft 5 is rotatably supported by the rotating shaft support portion 6.

  When the rotating shaft 5 and the wire drum 4 are driven to rotate by an electric motor 25 or a hydraulic motor 29, which will be described later, and rotated in a predetermined rotating direction (for example, clockwise as viewed from the rotating shaft support portion side), the wire rope 3 is The door 2 is raised by being wound around the wire drum 4. When the door body 2 is lowered by its own weight (gravity), the wire drum 4 is rotated in the direction opposite to the predetermined rotation direction by the wire rope 3, and the winding of the wire rope 3 is released. The rotating shaft 5 is on the opposite side to the wire drum 4 with respect to the direction in which the central axis extends, and is coaxially connected to the output shaft 9 of a helical reduction gear 8 (hereinafter referred to as “reduction gear 8”) by a connector 7 (coupling). It is connected. Here, the rotating shaft 5 and the output shaft 9 may not be connected by the connecting tool 7 but may be mechanically engaged via a gear pair or the like to transmit power. Of course, a reduction gear other than the helical reduction gear can be used for the gate opening / closing device S1.

  The speed reducer 8 includes an input shaft 11 and first to third intermediate shafts 12 to 14 disposed between the input shaft 11 and the output shaft 9 in addition to the output shaft 9. Although not shown in detail, the output shaft 9, the input shaft 11, and the first to third intermediate shafts 12 to 14 are rotatably supported by bearings fixed to the housing 10 of the speed reducer 8. A first gear 15 is coaxially attached to the input shaft 11. A second gear 16 and a third gear 17 are coaxially attached to the first intermediate shaft 12. A fourth gear 18 and a fifth gear 19 are coaxially attached to the second intermediate shaft 13. A sixth gear 20 and a seventh gear 21 are coaxially attached to the third intermediate shaft 14. An eighth gear 22 is coaxially attached to the output shaft 9. Helical gears are used for the first to eighth gears 15 to 22. Of course, gears other than the helical gear may be used.

  Here, the first gear 15 and the second gear 16 are meshed with a predetermined gear ratio (for example, 5.1) greater than 1, and the third gear 17 and the fourth gear 18 are configured with a predetermined gear ratio (for example, greater than 1) (for example, 3.6), the fifth gear 19 and the sixth gear 20 are engaged at a predetermined gear ratio (for example, 4.0) greater than 1, and the seventh gear 21 and the eighth gear 22 are predetermined gears greater than 1. Meshed at a ratio (eg 4.3). That is, the speed reducer 8 increases the torque from the input shaft 11 to the output shaft 9 with a gear ratio of about 315, and increases the torque from the first intermediate shaft 12 to the output shaft 9 with a gear ratio of about 62. When the door body 2 is lowered due to its own weight, the transmission gear ratio when the torque is transmitted from the output shaft 9 to the input shaft 11 or the first intermediate shaft 12 (when reversely driven) is the input shaft 11 or the first shaft. This is the reciprocal of the gear ratio when the torque is transmitted from the intermediate shaft 12 to the output shaft 9 (increased).

  The gate opening / closing device S1 includes an electric motor 25 that rotationally drives the input shaft 11 when the door body 2 is raised at a normal time when the power supply functions normally. An electric motor rotating shaft (not shown) fixed to the rotor of the electric motor 25 is coaxially connected to the input shaft 11 via a connector or a coupling (not shown). Commercial electric power is supplied to the electric motor 25 from a power source (not shown) via a conductor 26 and a control panel 27. Note that the input shaft 11 and the motor rotating shaft may not be coupled by a coupling tool or a coupling but may be mechanically engaged via a gear pair or the like to transmit power.

Furthermore, the gate opening / closing device S1 includes a hydraulic motor 29. A hydraulic motor rotating shaft 31 that is an output shaft of the hydraulic motor 29 is coaxially connected to the first intermediate shaft 12 via a coupling 32. Note that the first intermediate shaft 12 and the hydraulic motor rotating shaft 31 may not be coupled by the coupling 32 but may be mechanically engaged via a gear pair or the like to transmit power. The hydraulic oil 29 has a first hydraulic oil passage 35 and a second hydraulic oil passage 36 between the hydraulic motor 29 and the hydraulic oil storage tank 34 that stores the hydraulic oil. A circuit C1 is provided. The hydraulic oil storage tank 34 is a tank having a relatively small capacity (for example, 0.2 to 0.5 m ³ ), and is disposed at a position higher than the hydraulic motor 29 (for example, a position higher by 1 to 10 m or 5 to 20 m). ing.

  Since the wire rope winch type gate opening / closing device S1 requires a rotational force to rotate the wire drum 4 in an emergency, the actuator for rotating the wire drum 4 has an opening / closing head, an opening / closing speed, cost, and layout characteristics. From the viewpoint, a hydraulic motor 29 having a generally compact and simple structure is used. The hydraulic motor 29 has a function of combining an electric motor and a speed reducer in a mechanical gate opening / closing device, has sufficient production management for general industrial use, has high quality and reliability, and has a long history of use. It is.

  As described above, in the gate opening and closing device S1, the electric motor 25 is connected to the input shaft 11, while the hydraulic motor 29 is connected to the first intermediate shaft 12, and the motor 25 and the hydraulic motor 29 are particularly powered. No source switching device or operating gear mechanism is provided. Generally, when two power sources are provided in this type of gate opening and closing device, a switching device and a differential gear mechanism are installed between one power source and the other power source. The number of parts of the opening / closing mechanism increases, the structure becomes complicated, and a large amount of cost is required for installation (for example, 3 to 5 million yen). Therefore, since the gate opening / closing device S1 according to the present invention is mainly used for emergency operation, a switching device and a differential gear mechanism are not provided, and the failure due to downsizing of the device layout and reduction of the number of parts is provided. In order to reduce the rate of occurrence, further reduce costs, and promote the deployment or application to many institutions and facilities that manage sluice gates.

  As will be described later, the emergency hydraulic apparatus R is portable and can accommodate various gate opening and closing devices. On the other hand, the hydraulic motor 29 is not a portable type, but a permanent type that is fixed to the speed reducer 8. This is due to the following reason. That is, in order to input the output of the hydraulic motor 29 to an existing gate opening / closing device, a strong torque and a constant rotation are required, and precise installation management (levelness and axis height) is required. Therefore, when the hydraulic motor 29 is portable, installation management by a skilled operator is required. Furthermore, since the opening / closing torque and the number of rotations (required oil amount) are design conditions unique to each gate opening / closing device, it is difficult to create a hydraulic motor that can be used in common in various gate opening / closing devices. Therefore, the hydraulic motor 29 is a permanent type from a comprehensive point of view. Since the hydraulic motor 29 is very inexpensive, even if the hydraulic motor 29 is permanently installed in each gate opening / closing device, it does not cost much and does not substantially hinder the installation.

  In the gate opening / closing device S1, the hydraulic motor rotating shaft 31 is connected to the first intermediate shaft 12 via the coupling 32. Therefore, when using the existing reduction gear 8, the reduction gear 8 or the first intermediate gear The shaft 12 needs to be modified or created so that it can be connected to the hydraulic motor rotating shaft 31. In this case, without bringing the entire speed reducer 8 into the factory, the upper lid of the housing 10 is opened, the first intermediate shaft 12 and the second and third gears 16 and 17 attached thereto are removed and brought into the factory. The third gears 16 and 17 are reused, and only the first intermediate shaft 12 needs to be renewed or processed. Therefore, this method of connecting the hydraulic motor rotating shaft 31 to the first intermediate shaft 12 is very advantageous in terms of delivery time and cost.

  In the gate opening / closing device S1, the hydraulic motor rotary shaft 31 is connected to the first intermediate shaft 12 via the coupling 32, but the hydraulic motor rotary shaft 31 is opposite to the electric motor 25 in the direction in which the input shaft central axis extends. At the end, the input shaft 11 may be coaxially connected via a coupling. Further, the hydraulic motor rotating shaft 31 may be coaxially connected to an intermediate shaft other than the first intermediate shaft 12 (for example, the third intermediate shaft 13) via a coupling. Thus, in the gate opening / closing device S1 according to the first embodiment, the input of the rotational force (torque) from the hydraulic motor 29 to the speed reducer 8 is freely set according to the structure (for example, the number of stages) of the speed reducer 8. be able to.

  FIG. 2 is a hydraulic circuit diagram of a hydraulic circuit C 1 that supplies and discharges hydraulic oil to and from the hydraulic motor 29. Note that FIG. 2 shows a state in which the emergency hydraulic device R is connected to the hydraulic circuit C1 for convenience, but the emergency hydraulic device R is not connected to the hydraulic circuit C1 in a normal state. As shown in FIG. 2, one end portion of the first hydraulic oil passage 35 configuring the hydraulic circuit C <b> 1 is connected to the first hydraulic oil supply / discharge port 40 of the hydraulic motor 29, and the other end portion is connected to the hydraulic oil storage tank 34. And is immersed in the hydraulic oil stored in the hydraulic oil storage tank 34. One end of the second hydraulic oil passage 36 is connected to the second hydraulic oil supply / discharge port 41 of the hydraulic motor 29, and the other end is connected to the hydraulic oil storage tank 34, and is stored in the hydraulic oil storage tank 34. Soaked in oil.

  The hydraulic circuit C1 is provided with a first bypass passage 42 that connects the first hydraulic fluid passage 35 and the second hydraulic fluid passage 36, and the first bypass passage 42 is provided in the first hydraulic fluid passage 35 or in a second operation. A relief valve 43 for adjusting the pressure of the hydraulic oil in the oil passage 36 is interposed. Further, a second bypass passage 44 that connects the first hydraulic oil passage 35 and the second hydraulic oil passage 36 is provided on the hydraulic motor side of the first bypass passage 42, and the first operation passage is provided in the second bypass passage 44. A flow rate adjusting valve 45 for adjusting the flow rate of the hydraulic oil in the oil passage 35 or the second hydraulic oil passage 36 is interposed.

  On the hydraulic oil reservoir side of the first bypass passage 42, the first hydraulic oil passage 35 is provided with a first multi-function valve 46 which is a series of multipurpose stop valves, while the second hydraulic oil passage 36 is provided with a series of multi-purpose stop valves. A second multi-function valve 47, which is a multipurpose stop valve, is provided. Here, the first and second multifunction valves 46 and 47 may be provided in the first and second hydraulic fluid passages 35 and 36 at positions different from the above, for example, at positions close to the hydraulic motor 29. The first multifunction valve 46 and the second multifunction valve 47 are used to connect the emergency hydraulic device R to the hydraulic circuit C1 when the electric motor 25 does not function due to a power failure or the like, for example, at the time of a disaster. The application is not limited to the connection of the emergency hydraulic apparatus R, and can be used for various operations such as connection of a hydraulic gauge and inspection of leakage of hydraulic oil.

  The first multifunction valve 46 includes a manual open / close valve 46a, a first external connection port 46b, and a second external connection port 46c. The on-off valve 46a is interposed in the first hydraulic oil passage 35 on the hydraulic oil storage tank side from the first bypass passage 42, and can open and close the first hydraulic oil passage 35 by manual operation. The first external connection port 46b communicates with the first hydraulic oil passage 35 on the hydraulic oil storage tank side from the opening / closing valve 46a, and the second external connection port 46c is the first hydraulic oil passage on the hydraulic motor side from the opening / closing valve 46a. 35. The second multifunction valve 47 has the same structure as the first multifunction valve 46, and includes an on-off valve 47a, a first external connection port 47b, and a second external connection port 47c. The external connection ports 46b, 46c, 47b, 47c of the first and second multifunction valves 46, 47 have the same structure.

  The emergency hydraulic system R includes a first oil passage 50 and a second oil passage 51, and a prime mover 52 (eg, a diesel engine) that operates independently without being constantly supplied with energy (eg, commercial power) from the outside. A hydraulic pump 53 to be driven, and a manual oil passage switching valve 54 provided across the first oil passage 50 and the second oil passage 51 are provided. Then, at one end of the first oil passage 50, a connection tool 50a having a check valve that can be connected to the connection tool of the second external connection port 46c of the first multifunction valve 46 is attached. On the other hand, at one end of the second oil passage 51, a connection tool 51a having a check valve that can be connected to the connection tool of the second external connection port 47c of the second multifunction valve 47 is attached. ing. Further, hydraulic oil supply / discharge ports 50b and 51b (openings) are provided at the other ends of the first and second oil passages 50 and 51, respectively (see FIG. 3). In addition, each connection tool 50a, 51a of the first and second oil passages 50, 51 is connected to any of the external connection ports 46b, 46c, 47b, 47c of the first and second multifunction valves 46, 47. It is something that can be done.

  The oil passage switching valve 54 switches the flow of hydraulic oil in the first and second oil passages 50 and 51 in the forward direction or the reverse direction. Specifically, the oil passage switching valve 54 is manually operated, and the high-pressure hydraulic oil discharged from the hydraulic pump 53 is supplied to the first oil passage 50 (the portion on the side opposite to the hydraulic pump 53 with respect to the oil passage switching valve 54). A first state in which the oil is supplied to the outside via the second oil passage 51, a second state in which the oil is supplied to the outside via the second oil passage 51 (the portion on the opposite side of the oil passage switching valve 54 from the hydraulic pump 53), and operation. It can be set to any of the third states where oil is not supplied to the outside.

  As shown in FIG. 3, the emergency hydraulic apparatus R is portable and has a light and compact structure disposed in a frame 56 to which a moving wheel 55 is attached. Therefore, if the emergency hydraulic device R is stored in an appropriate place, it can be quickly and easily moved and connected to the hydraulic circuit C1 in the event of a disaster or an emergency due to an earthquake, etc. Can be opened and closed. Since this emergency hydraulic device R can be easily moved, it can be shared by a plurality of gate opening and closing devices.

  The emergency hydraulic system R (patent pending: Japanese Patent Application No. 2013-092670) was jointly developed by the present applicant (independent administrative agency, Water Resources Organization and UTEC Co., Ltd.). As a stand-by power, when the power is lost (when commercial power is lost or the standby generator fails), the control panel (machine operation panel) or the hydraulic unit fails The gate opening / closing device can be operated simply by connecting to the multi-function valve in the piping section.

  As described above, since the emergency hydraulic device R can be shared by the plurality of gate opening / closing devices S1, it is not necessary to equip each gate opening / closing device S1. Therefore, it is very economical. In general, the standby power source of the gate opening / closing device needs to take into account the social influence caused by the failure of the gate opening / closing device. Therefore, instead of permanently installing a standby power source for all equipment, a portable spare that can be shared by multiple equipment for facilities with a certain degree of tolerance due to the social impact on emergency operations in the event of a failure. Adopting a method of bringing in a power source is advantageous in terms of equipment costs and maintenance costs.

  In general, a shaft type open / close power source is the mainstream of a portable standby power source used in a wire rope winch type gate opening / closing device. However, the shaft type open / close device has the problems described above. In contrast, the emergency hydraulic system R is a practical and inexpensive reserve power source. In general, from the viewpoint of a facility manager, having a plurality of portable reserve power units is disadvantageous in terms of maintenance and labor in terms of labor and cost. However, when the emergency hydraulic apparatus R is used, the wire rope winch type gate opening / closing apparatus S1 can be opened / closed using the emergency hydraulic apparatus already possessed by the hydraulic cylinder type gate opening / closing apparatus, for example.

Hereinafter, an example of an operation procedure of the gate opening / closing device S1 according to the first embodiment of the present invention will be described.
(1) When the sluice gate is opened at normal time When the sluice gate 1 is opened at normal time when the power supply functions normally, the control panel 27 is operated to supply electric power to the electric motor 25 and rotate it. At this time, the rotation of the motor rotation shaft is decelerated by the speed reducer 8 and transmitted to the wire drum 4. As a result, the wire drum 4 rotates in a predetermined rotation direction, winds up the wire rope 3 and raises the door body 2. Thereby, the water gate 1 is opened. When the door body 2 is raised to a predetermined position, the supply of electric power to the electric motor 25 is stopped and the wire drum 4 is locked. Thereby, the door body 2 is fixed and held at that position.

  At this time, the hydraulic motor rotating shaft 31 is rotationally driven by the first intermediate shaft 12. As a result, the hydraulic motor 29 functions as a pump, and hydraulic oil circulates between the oil chamber in the hydraulic motor and the hydraulic oil storage tank 34 via the first and second hydraulic oil passages 35 and 36. That is, the hydraulic oil is in an idle state, thereby preventing troubles such as rusting due to sticking or running out of oil, and improving reliability during emergency operation. In this case, since the rotational speeds of the first intermediate shaft 12 and the hydraulic motor rotating shaft 31 are relatively small, the circulation amount of the hydraulic oil is relatively small, and the flow of the hydraulic oil does not become the rotational resistance of the first intermediate shaft 12 much. . Therefore, the electric motor 25 or the speed reducer 8 is hardly braked by the hydraulic motor 29.

(2) When the sluice gate is closed during normal operation When the sluice gate 1 is closed during normal operation, the wire drum 4 is unlocked while the power to the electric motor 25 is stopped. Thereby, the door body 2 is lowered at a higher speed than when it is raised due to gravity (self-weight), and accordingly, a portion of the wire rope 3 that is not wound around the wire drum 4 moves downward. As a result, the wire drum 4 is rotated by the wire rope 3 in the direction opposite to that when the sluice 1 is opened. The rotation of the wire drum 4 or the rotating shaft 5 is transmitted to the output shaft 9 of the speed reducer 8, accelerated by the gear mechanism of the speed reducer 8, and transmitted to the first intermediate shaft 12 and further to the input shaft 11.

  At this time, the hydraulic motor rotating shaft 31 is rotationally driven by the first intermediate shaft 12. The electric motor rotating shaft is also driven to rotate idly. As a result, the hydraulic motor 29 functions as a pump, and hydraulic oil circulates between the oil chamber in the hydraulic motor 29 and the hydraulic oil storage tank 34 via the first and second hydraulic oil passages 35 and 36. Thus, the door body 2 descends at an appropriate speed and closes the sluice 1 without colliding with the bottom of the water channel.

(3) When opening a sluice gate in an emergency When opening the sluice gate 1 in an emergency when the power supply, the control panel 27 or the electric motor 25 does not function normally due to a disaster such as an earthquake or typhoon, the first and second multifunction valves 46 and 47 After closing the on-off valves 46a and 47a by manual operation, the connection tool 50a of the first oil passage 50 is connected to the second external connection port 46c of the first multifunction valve 46, and the connection tool of the second oil passage 51 51 a is connected to the second external connection port 47 c of the second multifunction valve 47. Then, the hydraulic oil supply / discharge ports 50 b and 51 b at the other ends of the first and second oil passages 50 and 51 are introduced (immersed) in the hydraulic oil in the hydraulic oil storage tank 34. The hydraulic oil supply / discharge ports 50b and 51b may be introduced (immersed) into hydraulic oil stored in a hydraulic oil container other than the hydraulic oil storage tank 34.

  Next, the prime mover 52 is started and the hydraulic pump 53 is operated by the driving force of the prime mover 52. Thereafter, the oil passage switching valve 54 is set to a first state in which hydraulic oil is supplied to the outside via the first oil passage 50. Thus, the hydraulic oil in the hydraulic oil storage tank 34 is supplied by the hydraulic pump 53 to the first oil passage 50, the second external connection port 46c of the first multifunction valve 46, the first hydraulic oil passage 35, and the first hydraulic oil passage 35. The oil is supplied to the oil chamber of the hydraulic motor 29 through the hydraulic oil supply / discharge port 40 in a high pressure state. As a result, the hydraulic motor rotating shaft 31 is rotated. The hydraulic oil whose pressure has been reduced by rotating the hydraulic motor rotating shaft 31 includes the second hydraulic oil supply / discharge port 41, the second hydraulic oil passage 36, the second external connection port 47c of the second multifunction valve 47, It returns to the hydraulic oil storage tank 34 via the second oil passage 51.

  Thus, the rotation of the hydraulic motor rotating shaft 31 is decelerated by the speed reducer 8 and transmitted to the wire drum 4. As a result, the wire drum 4 rotates in a predetermined rotation direction, winds up the wire rope 3 and raises the door body 2. Thereby, the water gate 1 is opened. When the door body 2 is raised to a predetermined position, the oil passage switching valve 54 is set to a third state in which hydraulic oil is not supplied to the outside, and the wire drum 4 is locked. Thereby, the door body 2 is fixed and held at that position.

(4) Closing the sluice gate in an emergency The operation for closing the sluice 1 in an emergency is substantially the same as the operation for closing the sluice 1 in the normal state, and the door body 2 descends at an appropriate speed. Close sluice 1 without crashing into the bottom of the waterway.

  According to the gate opening / closing device S1 according to the first embodiment of the present invention, since it is not necessary to provide a plurality of brakes and differential gears unlike the conventional gate opening / closing device of this type, the gate opening / closing device S1 or this is provided. Further, the structure of the self-weight descending sluice 1 can be made compact and simplified. Even when a power source such as a power source loses its function in the event of a disaster such as an earthquake or a typhoon, the emergency hydraulic system R can raise and lower the door body 2 to open and close the sluice gate 1, so that a disaster caused by flooding or tsunami Can be prevented or reduced.

(Modification of Embodiment 1)
Hereinafter, with reference to FIG. 4, a modification of the first embodiment in which the present invention (Embodiment 1) is applied to an existing wire rope winch type gate opening / closing device (for example, a women's stone head gutter in Fukuoka Prefecture). The gate opening / closing device S1 ′ according to FIG. As shown in FIG. 4, the gate opening / closing device S1 ′ according to this modification is basically the same as the gate opening / closing device S1 shown in FIG. 1, but is different in the following points. First, the electric motor 25 (motor rotating shaft) is not a motor rotating shaft directly connected to the input shaft 11 via a connector as in the gate opening / closing device S1 shown in FIG. The link mechanism 60 is connected to the input shaft 11 of the speed reducer 8 via a hydraulic push-up brake device 61 (a mu lifter brake). The output shaft 9 of the speed reducer 8 is connected to the rotating shaft of the wire drum 4 via a speed reduction gear pair 62 (for example, a gear pair having a gear ratio of 5.5). Such a difference from the gate opening / closing device S1 shown in FIG. 1 is caused by applying the present invention to an existing wire rope winch type gate opening / closing device.

  Further, in the gate opening / closing device S1 ′ shown in FIG. 4, the first hydraulic oil passage 35 is not provided with the first multifunctional valve, but with two on-off valves and an external communicating with the first hydraulic oil passage 35 between these on-off valves. While a first external connection mechanism 63 having a connection port is provided, the second hydraulic oil passage 36 is provided with two on-off valves instead of the second multifunction valve and the second hydraulic oil passage 36 between these on-off valves. A second external connection mechanism 64 having an external connection port communicating therewith is provided. In the example shown in FIG. 4, the emergency hydraulic apparatus R can use the hydraulic oil in the existing hydraulic oil tank 65. Needless to say, the emergency hydraulic apparatus R may use the hydraulic oil in the hydraulic oil storage tank 34.

In the gate opening / closing device S1 ′, the emergency hydraulic device R is used in the following operation procedure.
(1) The emergency hydraulic device R is carried in and arranged near the hydraulic motor 29 of the gate opening / closing device S1 ′.
(2) The hydraulic oil supply / discharge ports 50b and 51b at the ends of the first and second oil passages 50 and 51 are introduced (immersed) into the hydraulic oil in the existing hydraulic oil tank 65 or the hydraulic oil storage tank 34.
(3) Close each open / close valve on the hydraulic oil storage tank side of the first and second hydraulic oil passages 35 and 36, and open each open / close valve on the hydraulic motor side, and then connect the connector 50a of the first oil passage 50. The first external connection mechanism 63 is connected to the external connection port, and the connection tool 51 a of the second oil passage 51 is connected to the external connection port of the second external connection mechanism 64.
(4) The brake of the electric motor 25 and the hydraulic push-up type brake device 61 are manually released.
(5) The prime mover 52 of the emergency hydraulic system R is started (see FIGS. 2 and 3).
(6) The hydraulic fluid is supplied from the hydraulic pump 53 to the hydraulic motor 29 by operating the lever of the oil passage switching valve 54 of the emergency hydraulic system R, and the sluice 1 is opened and closed (see FIGS. 2 and 3).

  In the gate opening / closing device S1 ′ in which the first embodiment of the present invention is applied to an existing wire rope winch type gate opening / closing device, “wire rope”, which is a malfunction peculiar to the wire rope winch type gate opening / closing device in operation. Attention should be paid to "sagging" and "wire rope overload". When the power supply and control panel (machine side operation panel) of the gate opening / closing device S1 ′ are functioning normally, an alarm is issued by the detection device built in the wire rope terminal device. Since there is no such notification at the time of failure, some operators are required. For example, a total of four operators are arranged, one for the operation of the emergency hydraulic system R, one for the confirmation of the gate opening, and two for the confirmation of the left and right banks of the wire rope terminal device and the door body / wire rope. Is preferred.

  Thus, according to the gate opening / closing device S1 ′, the sluice gate 1 can be reliably connected when a power loss is expected in the event of a large-scale disaster or when a device such as a standby generator, a control panel (machine side operation panel) or a normal motor is broken. It can be opened and closed, and the function that the sluice gate 1 should have can be maintained. Thus, Embodiment 1 of the present invention can be easily applied to existing wire rope winch type gate opening / closing devices, and is introduced into wire rope winch type gate opening / closing devices of many engines and facilities. Since the hydraulic motor 29, which is an inexpensive and simple structure actuator, can be installed in the gate helical reducer, it can be deployed in many facilities.

(Embodiment 2)
Hereinafter, a wire rope winch type gate opening / closing device S2 according to Embodiment 2 of the present invention will be described with reference to FIGS. However, the basic configuration of the gate opening / closing device S2 according to the second embodiment is the same as that of the gate opening / closing device S1 according to the first embodiment shown in FIGS. Differences from the gate opening / closing device S1 according to the first embodiment shown in FIG. 2 will be described. Among the components of the gate opening / closing device S2 shown in FIGS. 5 to 6, the same reference numerals are given to the components common to the components of the gate opening / closing device S1 shown in FIGS. The gate opening / closing device S2 according to the second embodiment can also be applied to a self-weight drop type land anchor.

  As shown in FIGS. 5 to 6, in the gate opening / closing device S <b> 2 according to the second embodiment, the hydraulic motor 29 is opposite to the speed reducer 8 with respect to the rear side of the electric motor 25, i.e., the direction in which the central axis of the electric motor rotating shaft 70 extends. The hydraulic motor rotating shaft 31 is not connected to the first intermediate shaft 12 (right side in the positional relationship in FIG. 5A). The hydraulic motor rotating shaft 31 is coaxially connected to the electric motor rotating shaft 70 via the coupling 32 on the side opposite to the input shaft 11 in the direction in which the central axis of the electric motor rotating shaft 70 extends. Therefore, the electric motor rotating shaft 70 and the hydraulic motor rotating shaft 31 rotate integrally. The other configuration of the gate opening / closing device S2 is the same as that of the gate opening / closing device S1 shown in FIGS. The hydraulic circuit C2 of the gate opening / closing device S2 is substantially the same as the hydraulic circuit C1 of the gate opening / closing device S1 according to the first embodiment. FIG. 6 shows a state in which the emergency hydraulic device R is connected to the hydraulic circuit C2, but the emergency hydraulic device R is not connected to the hydraulic circuit C2 in a normal state.

  The gate opening / closing device S2 according to the second embodiment has an advantage that only the electric motor 25 needs to be a special product. However, in general, the sluice motor is often a special product, and the special product is further improved. Special products may require a slightly longer time to manufacture and may increase costs.

  In the gate opening / closing device S <b> 2 shown in FIG. 5, the electric motor rotating shaft 70 and the hydraulic motor rotating shaft 31 are coaxially connected via a coupling 32. However, the power transmission mechanism between the electric motor rotating shaft 70 and the hydraulic motor rotating shaft 31 is not limited to this, and both the electric motor rotating shaft 70 and the hydraulic motor rotating shaft 31 are mechanically engaged with each other. Any device can be used as long as power can be transmitted between them.

  9A to 9D show some specific examples of a power transmission mechanism that mechanically engages the electric motor rotating shaft 70 and the hydraulic motor rotating shaft 31. The power transmission mechanism shown in FIG. 9A is the same as that of the gate opening / closing device S2 shown in FIG. 5, and the electric motor rotating shaft 70 and the hydraulic motor rotating shaft 31 are coaxially connected via a coupling 32. It is connected. In the power transmission mechanism shown in FIG. 9B, the electric motor rotating shaft 70 and the hydraulic motor rotating shaft 31 are arranged in parallel to each other and are mechanically engaged with each other by a sprocket mechanism 72 (or a gear mechanism). In the power transmission mechanism shown in FIG. 9C, the motor rotating shaft 70 of the motor 25 is connected to the input shaft 11 of the speed reducer 8 via a bent link mechanism 73, while the motor rotating shaft 70 and the hydraulic motor rotating shaft are connected. 31 are arranged in parallel to each other and are mechanically engaged with each other by a sprocket mechanism 74 (or a gear mechanism). In the power transmission mechanism shown in FIGS. 9A to 9C, the hydraulic motor rotation shaft 31 is connected to the motor rotation shaft 70 on the side opposite to the side where the motor rotation shaft 70 is dynamically engaged with the input shaft 11. It is mechanically engaged.

  In the power transmission mechanism shown in FIG. 9D, the electric motor rotating shaft 70 and the hydraulic motor rotating shaft 31 are arranged in parallel to each other, and both are mechanically engaged with the input shaft 11 by the gear mechanism 75, respectively. In the power transmission mechanism shown in FIG. 9D, the hydraulic motor rotation shaft 31 is engaged with the motor rotation shaft 70 on the side where the motor rotation shaft 70 is dynamically engaged with the input shaft 11.

  When the motor rotation shaft 70 is dynamically engaged with the input shaft 11 and the hydraulic motor rotation shaft 31 is dynamically engaged with the motor rotation shaft 70, for example, as shown in FIGS. As described above, power switching devices 76 a and 76 b that make the electric motor rotating shaft 70 and the hydraulic motor rotating shaft 31 differential may be disposed between the input shaft 11, the electric motor rotating shaft 70, and the hydraulic motor rotating shaft 31. .

  In the power transmission mechanism shown in FIGS. 10A to 10B, the power switching device 76a includes a differential gear mechanism 77, a sprocket power transmission mechanism 78, and a gear power transmission mechanism 79. Here, when the electric motor 25 or the electric motor rotating shaft 70 is fixed or locked, power is transmitted between the hydraulic motor rotating shaft 31 and the input shaft 11. Conversely, when the hydraulic motor 29 or the hydraulic motor rotating shaft 31 is fixed or locked, power is transmitted between the electric motor rotating shaft 70 and the input shaft 11.

  In the power transmission mechanism shown in FIGS. 10C to 10D, the power switching device 76 b includes a planetary gear mechanism 80. Here, when the electric motor 25 or the electric motor rotating shaft 70 is fixed or locked, power is transmitted between the hydraulic motor rotating shaft 31 and the input shaft 11. Conversely, when the hydraulic motor 29 or the hydraulic motor rotating shaft 31 is fixed or locked, power is transmitted between the electric motor rotating shaft 70 and the input shaft 11. It should be noted that the power switching devices 76a and 76b shown in FIGS. 10A to 10B are merely examples, and other power switching devices having different structures may be used as a matter of course.

Hereinafter, an example of an operation procedure of the gate opening / closing device S2 according to the second embodiment illustrated in FIGS. 5 to 6 will be described.
(1) When the sluice gate is opened during normal operation When the sluice gate 1 is opened during normal operation, the door body 2 is raised by basically the same operation as in the case of the gate opening / closing device S1 according to the first embodiment. be opened. However, the hydraulic motor rotating shaft 31 is rotationally driven by the electric motor rotating shaft 70. As a result, the hydraulic motor 29 functions as a pump, and hydraulic oil circulates between the oil chamber in the hydraulic motor 29 and the hydraulic oil storage tank 34 via the first and second hydraulic oil passages 35 and 36. In this case, since the rotational speed of the hydraulic motor rotating shaft 31 is relatively small, the flow rate of the working oil is relatively small, and the flow of the working oil does not become much rotational resistance of the input shaft 11 (the electric motor rotating shaft 70).

(2) When the sluice gate is closed during normal operation When the sluice gate 1 is closed during normal operation, the door body 2 is lowered by basically the same operation as in the case of the gate opening and closing device S1 according to the first embodiment. Closed. However, the hydraulic motor rotating shaft 31 is rotationally driven via the electric motor rotating shaft 70. As a result, the hydraulic motor 29 functions as a pump, and hydraulic oil circulates between the oil chamber in the hydraulic motor and the hydraulic oil storage tank 34 via the first and second hydraulic oil passages 35 and 36. Thus, the door body 2 descends at an appropriate speed and closes the sluice 1 without colliding with the bottom of the water channel.

(3) When the sluice gate is opened or closed in an emergency When the sluice gate 1 is opened in an emergency, the door body 2 is raised by basically the same operation as in the case of the gate opening / closing device S1 according to the first embodiment. 1 is opened. Further, in the event of an emergency, the operation for closing the sluice 1 is the same as the operation for closing the sluice 1 at the normal time, and the door body 2 descends at an appropriate speed, and the sluice gate does not collide with the bottom of the water channel. Close 1

  Thus, according to the gate opening / closing device S2 according to the second embodiment of the present invention, as in the case of the gate opening / closing device S1 according to the first embodiment, a plurality of brakes and differential gear mechanisms are not required. The structure of the self-weight descending sluice 1 equipped with the device S2 or this can be made compact and can be simplified. Even when a power source such as a power source loses its function in the event of a disaster such as an earthquake or a typhoon, the emergency hydraulic system R can raise and lower the door body 2 to open and close the sluice gate 1, so that a disaster caused by flooding or tsunami Can be prevented or reduced.

(Embodiment 3)
Hereinafter, a wire rope winch type gate opening / closing device S3 according to Embodiment 3 of the present invention will be described with reference to FIGS. However, the basic configuration of the gate opening / closing device S3 according to Embodiment 3 is the same as that of the gate opening / closing device S1 according to Embodiment 1 shown in FIGS. Differences from the gate opening / closing device S1 according to the first embodiment shown in FIG. 2 will be described. Among the components of the gate opening / closing device S3 shown in FIGS. 7 to 8, the same reference numerals are given to the components common to the components of the gate opening / closing device S1 shown in FIGS. Note that the gate opening / closing device S3 according to the third embodiment can also be applied to a self-weight drop type land anchor.

  As shown in FIG. 7, in the gate opening / closing device S3 according to the third embodiment, an electric motor for driving the input shaft 11 of the speed reducer 8 is not provided, and the input shaft 11 of the speed reducer 8 is operated by the hydraulic oil supply device C3. It is rotationally driven by a hydraulic motor 29 that supplies and discharges oil. Although not shown in detail, the hydraulic motor rotating shaft 31 is coaxially connected to the input shaft 11 via a coupling (not shown). The power transmission mechanism between the input shaft 11 and the hydraulic motor rotating shaft 31 is not limited to this, and the input shaft 11 and the hydraulic motor rotating shaft 31 are mechanically engaged with each other. Any device that can transmit power may be used.

  The hydraulic oil supply device C3 of the gate opening / closing device S3 is basically for operating the hydraulic motor 29 during normal operation, and therefore has a considerably different configuration from the hydraulic circuit C1 of the gate opening / closing device S1 according to the first embodiment. . However, the emergency hydraulic apparatus R is the same as that of the gate opening / closing apparatus S1 according to the first embodiment. Hereinafter, the configuration and function of the hydraulic oil supply device C3 of the gate opening / closing device S3 will be described in detail.

  As shown in FIG. 8, the hydraulic oil supply device C <b> 3 includes first and second hydraulic oil passages each having one end connected to the first and second hydraulic oil supply / discharge ports 40 and 41 of the hydraulic motor 29. 81, 82, an oil passage switching valve 83 connected to the other end of the first and second hydraulic oil passages 81, 82, and a third, one end of which is connected to the oil passage switching valve 83, respectively. Fourth hydraulic oil passages 84 and 85, a hydraulic oil tank 86 that stores hydraulic oil, and a hydraulic pump 88 that is driven by a motor 87 are provided. FIG. 8 shows a state in which the emergency hydraulic device R is connected to the hydraulic oil supply device C3, but the emergency hydraulic device R is not connected to the hydraulic oil supply device C3 in a normal state.

  Here, the hydraulic pump 88 is provided in the third hydraulic oil passage 84, sucks the hydraulic oil in the hydraulic oil tank 86, pressurizes and discharges it, and switches the oil path via the third hydraulic oil passage 84. Supply to valve 83. Further, a bypass hydraulic oil passage 89 is provided to connect the third hydraulic oil passage 84 on the oil path switching valve side from the hydraulic pump 88 (a portion downstream from the hydraulic pump 88) and the fourth hydraulic oil passage 85, and A relief valve 90 that adjusts the hydraulic pressure in the third hydraulic oil passage 84 is interposed in the bypass hydraulic oil passage 89. In addition, a hydraulic pressure adjusting device 91 that adjusts the hydraulic pressure in the first hydraulic oil passage 81 and includes a relief valve and a plurality of check valves is provided between the first hydraulic oil passage 81 and the second hydraulic oil passage 82. It has been.

  Further, manual first and second on-off valves 92 and 93 are interposed in the first hydraulic oil passage 81 in the vicinity of the hydraulic motor 29, and between the first on-off valve 92 and the second on-off valve 93, the first A first external connection port 94 communicating with the hydraulic oil passage 81 is provided. In the vicinity of the hydraulic motor 29, manual third and fourth on-off valves 95 and 96 are provided in the second hydraulic oil passage 82, and the second on-off valve 95 and the fourth on-off valve 96 are provided between the second on-off valve 95 and the fourth on-off valve 96. A second external connection port 97 communicating with the hydraulic oil passage 82 is provided.

  The oil path switching valve 83 switches the hydraulic oil supply / discharge path to the hydraulic motor 29. Although not shown in detail, the oil passage switching valve 83 is a solenoid valve controlled by the control panel 27 (see FIG. 7), and the hydraulic oil discharged from the hydraulic pump 88 is passed through the first hydraulic oil passage 81. The first state of supplying to the first hydraulic oil supply / discharge port 40 of the hydraulic motor 29 and the second state of supplying to the second hydraulic oil supply / discharge port 41 of the hydraulic motor 29 via the second hydraulic oil passage 82 The hydraulic motor 29 can be set to any one of the third states in which no hydraulic oil is supplied.

  Thus, in the hydraulic motor 29, hydraulic oil is supplied to the first hydraulic oil supply / discharge port 40 via the first hydraulic oil passage 81, while the hydraulic oil in the oil chamber motor is supplied to the second hydraulic oil supply / discharge port 41. The hydraulic motor rotating shaft 31 (see FIG. 7) is rotated in a predetermined direction (the direction in which the door body 2 is raised). At this time, the input shaft 11 of the speed reducer 8 is rotationally driven by the hydraulic motor 29, and the door 2 is raised as will be described later. The hydraulic oil is supplied to the second hydraulic oil supply / discharge port 41 via the second hydraulic oil passage 82, while the hydraulic oil in the oil chamber motor is supplied from the first hydraulic oil supply / discharge port 40 to the first hydraulic oil passage. When discharged through 81, a hydraulic motor rotating shaft (not shown) is rotated in a direction opposite to the predetermined direction.

Hereinafter, an example of an operation procedure of the gate opening / closing device S3 according to Embodiment 3 of the present invention will be described.
(1) When the sluice is opened at normal time When the sluice 1 is opened at the normal time when the hydraulic oil supply device C3 functions normally, the control panel 27 is operated to supply electric power to the motor 87, and the hydraulic pump is rotated. 88 is operated. Then, the oil passage switching valve 83 is set to the first state, and the hydraulic oil is supplied to the first hydraulic oil supply / discharge port 40 of the hydraulic motor 29 via the first hydraulic oil passage 81. Thereby, a hydraulic motor rotating shaft (not shown) rotates in the predetermined direction, and the input shaft 11 of the speed reducer 8 is rotated in a direction in which the door body 2 is raised. The rotation of the input shaft 11 is decelerated by the speed reducer 8 and transmitted to the wire drum 4. As a result, the wire drum 4 rotates in a predetermined rotation direction, winds up the wire rope 3 and raises the door body 2. Thereby, the water gate 1 is opened. When the door body 2 is raised to a predetermined position, the hydraulic motor 29 is stopped and the wire drum 4 is locked. Thereby, the door body 2 is fixed and held at that position.

(2) When the sluice is closed during normal operation When the sluice 1 is closed during normal operation, the oil passage switching valve 83 is set to the third state, the end of the first hydraulic oil passage 81 on the oil passage switching valve side and the second portion. The end of the hydraulic oil passage 82 on the side of the oil passage switching valve is communicated via the oil passage switching valve 83. Thereafter, the wire drum 4 is unlocked. Thereby, the door body 2 descends at a relatively high speed due to gravity (self-weight), and accordingly, a portion of the wire rope 3 that is not wound around the wire drum 4 moves downward. As a result, the wire drum 4 is rotated by the wire rope 3 in the direction opposite to that when the sluice 1 is opened. The rotation of the wire drum 4 or the rotating shaft 5 is transmitted to the output shaft 9 of the speed reducer 8, accelerated by the gear mechanism of the speed reducer 8, and transmitted to the input shaft 11.

  At this time, the hydraulic motor rotating shaft 31 (see FIG. 7) is rotationally driven by the input shaft 11. As a result, the hydraulic motor 29 functions as a pump, and hydraulic oil circulates between the oil chamber in the hydraulic motor 29 and the oil passage switching valve 83 via the first and second hydraulic oil passages 81 and 82. Thus, the door body 2 descends at an appropriate speed and closes the sluice 1 without colliding with the bottom of the water channel.

(3) When opening the sluice gate in an emergency When the sluice gate 1 is opened in an emergency when the hydraulic fluid supply device C3 does not function normally due to a disaster such as an earthquake or typhoon, the second and fourth on-off valves 93 and 96 are manually closed. The first and third on-off valves 92 and 95 are kept open. Then, the connection tool 50 a of the first oil passage 50 is connected to the first external connection port 94, and the connection tool 51 a of the second oil passage 51 is connected to the second external connection port 97. Thereafter, the hydraulic oil supply / discharge ports 50 b and 51 b at the other ends of the first and second oil passages 50 and 51 are introduced (immersed) in the hydraulic oil in the hydraulic oil tank 86.

  Next, the prime mover 52 is started and the hydraulic pump 53 is operated by the driving force of the prime mover 52. Thereafter, the oil passage switching valve 54 is set to a first state in which hydraulic oil is supplied to the outside via the first oil passage 50. As a result, the hydraulic oil in the hydraulic oil tank 86 is supplied to the first oil passage 50, the first external connection port 94, the first hydraulic oil passage 81, and the first hydraulic oil supply / discharge port 40 by the hydraulic pump 53. And is supplied to the oil chamber of the hydraulic motor 29 in a high pressure state. As a result, the hydraulic motor rotating shaft (not shown) is rotated. The hydraulic oil whose pressure has been reduced by rotating a hydraulic motor rotating shaft (not shown) includes the second hydraulic oil supply / discharge port 41, the second hydraulic oil passage 82, the second external connection port 97, and the second oil. It returns to the hydraulic oil tank 86 via the passage 51.

  Thus, the rotation of the hydraulic motor rotating shaft 31 (see FIG. 7) is decelerated by the speed reducer 8 and transmitted to the wire drum 4. As a result, the wire drum 4 rotates in a predetermined rotation direction, winds up the wire rope 3 and raises the door body 2. Thereby, the water gate 1 is opened. When the door body 2 is raised to a predetermined position, the oil passage switching valve 54 is set to a third state in which hydraulic oil is not supplied to the outside, and the wire drum 4 is locked. Thereby, the door body 2 is fixed and held at that position.

(4) Closing the sluice gate in an emergency The operation for closing the sluice gate 1 in an emergency is the same as the operation for closing the sluice gate 1 in the normal state, and the door 2 descends at an appropriate speed and the bottom of the water channel Close sluice gate 1 without crashing into.

  According to the gate opening / closing device S3 according to the third embodiment of the present invention, since a plurality of brakes and differential gears are not required unlike the conventional gate opening / closing device of this type, the gate opening / closing device S3 or this is provided. The structure of the self-weight descending sluice 1 can be made compact and can be simplified. Even when a power source such as a power source loses its function in the event of a disaster such as an earthquake or a typhoon, the emergency hydraulic system R can raise and lower the door body 2 to open and close the sluice gate 1, so that a disaster caused by flooding or tsunami Can be prevented or reduced.

  S1 to S3 Gate opening and closing device, S1 'gate opening and closing device, C1 to C3 hydraulic circuit, R emergency hydraulic device, 1 sluice gate, 2 door body, 3 wire rope, 4 wire drum, 5 rotating shaft, 6 drum support, 7 connection 8 reducer, 9 output shaft, 10 housing, 11 input shaft, 12 first intermediate shaft, 13 second intermediate shaft, 14 third intermediate shaft, 15 first gear, 16 second gear, 17 third gear, 18 4th gear, 19 5th gear, 20 6th gear, 21 7th gear, 22 8th gear, 25 Electric motor, 26 Conductor, 27 Control panel, 29 Hydraulic motor, 31 Hydraulic motor rotating shaft, 32 Coupling, 34 Hydraulic oil storage tank, 35 First hydraulic oil passage, 36 Second hydraulic oil passage, 40 First hydraulic oil supply / discharge port, 41 Second hydraulic oil supply / discharge port, 42 1 bypass passage, 43 relief valve, 44 second bypass passage, 45 flow rate adjustment valve, 46 first multifunction valve, 47 second multifunction valve, 50 first oil passage, 51 second oil passage, 52 prime mover, 53 hydraulic pressure Pump, 54 hydraulic oil switching valve, 55 wheels, 56 frame, 60 link mechanism, 61 hydraulic push-up brake device, 62 reduction gear pair, 63 first external connection mechanism, 64 second external connection mechanism, 65 hydraulic oil tank, 70 electric motor Rotating shaft, 72 sprocket mechanism, 73 link mechanism, 74 sprocket mechanism, 75 gear mechanism, 76a power switching device, 76b power switching device, 77 differential gear mechanism, 78 sprocket type power transmission mechanism, 79 gear type power transmission mechanism, 80 Planetary gear mechanism, 81 first hydraulic oil passage, 82 second hydraulic oil passage, 83 oil passage switching valve, 84 third hydraulic oil passage 85 fourth hydraulic oil passage, 86 hydraulic oil tank, 87 motor, 88 hydraulic pump, 89 bypass hydraulic oil passage, 91 hydraulic pressure regulator, 92 first on-off valve, 93 second on-off valve, 94 first external connection port, 95 3rd on-off valve, 96 4th on-off valve, 97 2nd external connection port.

Claims (8)

A wire rope winch type gate opening and closing device that raises the door body that opens and closes the sluice or land by raising and lowering by power while lowering the door body by its own weight,
A wire rope that suspends the door body;
A rotatable wire drum that winds the wire rope;
The rotation shaft is engaged with the rotation shaft of the wire drum to rotate or drive the rotation shaft, the input shaft, and the rotation of the input shaft are decelerated and transmitted to the output shaft. Or a speed reducer having a gear mechanism for increasing the rotation of the output shaft and transmitting it to the input shaft;
An electric motor having an electric motor rotating shaft that engages with the input shaft and rotationally drives the input shaft or is driven to rotate by the input shaft;
Engage with the input shaft or the gear rotation shaft of the gear mechanism other than the input shaft and the output shaft, and rotate the input shaft or the gear rotation shaft, or rotate by the input shaft or the gear rotation shaft A hydraulic motor having a driven hydraulic motor rotating shaft;
A hydraulic circuit for circulating hydraulic oil between the hydraulic motor and the hydraulic oil reservoir;
A gate opening and closing device comprising: an emergency hydraulic device that is arbitrarily connected to the hydraulic circuit and capable of supplying and discharging hydraulic oil to and from the hydraulic motor. A wire rope winch type gate opening and closing device that raises the door body that opens and closes the sluice or land by raising and lowering by power while lowering the door body by its own weight,
A wire rope that suspends the door body;
A rotatable wire drum that winds the wire rope;
An output shaft engaged with and rotated by the rotating shaft of the wire drum, or an input shaft rotated by the rotating shaft, an input shaft, and the rotation of the input shaft is decelerated and transmitted to the output shaft; Or a speed reducer having a gear mechanism that accelerates and transmits the rotation of the output shaft to the input shaft;
An electric motor having an electric motor rotating shaft engaged with the input shaft and rotationally driven by or driven by the input shaft;
Hydraulic pressure having a hydraulic motor rotating shaft that engages with the motor rotating shaft and that drives the input shaft to rotate or is driven to rotate by the input shaft through the motor rotating shaft or without the motor rotating shaft. A motor,
A hydraulic circuit for circulating hydraulic oil between the hydraulic motor and the hydraulic oil reservoir;
A gate opening and closing device comprising: an emergency hydraulic device that is arbitrarily connected to the hydraulic circuit and capable of supplying and discharging hydraulic oil to and from the hydraulic motor.   The gate opening / closing apparatus according to claim 2, wherein the hydraulic motor rotating shaft is engaged with the electric motor rotating shaft on a side opposite to a side where the electric motor rotating shaft is engaged with the input shaft.   The gate opening / closing apparatus according to claim 2, wherein the hydraulic motor rotating shaft is engaged with the electric motor rotating shaft on a side where the electric motor rotating shaft is engaged with the input shaft.   A power switching device is provided between the input shaft, the electric motor rotating shaft, and the hydraulic motor rotating shaft, so that the electric motor rotating shaft and the hydraulic motor rotating shaft are differentiated. Item 5. The gate opening and closing device according to Item 4. The hydraulic circuit includes a first hydraulic fluid passage that connects one hydraulic oil supply / discharge port of the hydraulic motor and the hydraulic oil storage tank, and another hydraulic oil supply / discharge port of the hydraulic motor and the hydraulic oil storage tank. A second hydraulic oil passage to be connected,
A first on-off valve that opens and closes the first hydraulic oil passage and a first external connection port that communicates with the first hydraulic oil passage on the hydraulic motor side from the first on-off valve are interposed in the first hydraulic oil passage. Established,
A second on-off valve that opens and closes the second hydraulic oil passage and a second external connection port that communicates with the second hydraulic oil passage on the hydraulic motor side from the second on-off valve are interposed in the second hydraulic oil passage. Established,
The emergency hydraulic device is
A port connector that can be connected to the first external connection port is attached to one end, and a hydraulic oil supply / discharge port that can be introduced into the hydraulic oil container is provided to the other end. 1 oilway,
A port connector that can be connected to the second external connection port is attached to one end, and a hydraulic oil supply / discharge port that can be introduced into the hydraulic oil container is provided to the other end. Two oil passages,
A hydraulic pump interposed in the first oil passage or the second oil passage and driven by a power source operating alone;
An oil passage switching device interposed between the first oil passage and the second oil passage on the port connector side from the hydraulic pump, and for switching a hydraulic oil supply / discharge route in the first oil passage and the second oil passage; The gate opening / closing device according to claim 1, wherein the gate opening / closing device is provided. A wire rope winch type gate opening and closing device that raises the door body that opens and closes the sluice or land by raising and lowering by power while lowering the door body by its own weight,
A wire rope that suspends the door body;
A rotatable wire drum that winds the wire rope;
An output shaft engaged with and rotated by the rotating shaft of the wire drum, or an input shaft rotated by the rotating shaft, an input shaft, and the rotation of the input shaft is decelerated and transmitted to the output shaft; Or a speed reducer having a gear mechanism that accelerates and transmits the rotation of the output shaft to the input shaft;
A hydraulic motor having a hydraulic motor rotating shaft that engages with the input shaft and rotationally drives the input shaft or is rotationally driven by the input shaft;
A hydraulic oil supply / discharge device that supplies / discharges hydraulic oil to / from the hydraulic motor via a hydraulic oil supply / discharge passage connected to the hydraulic motor;
A gate opening and closing device comprising: an emergency hydraulic device that is arbitrarily connected to the hydraulic oil supply / discharge passage and is capable of supplying and discharging hydraulic oil to and from the hydraulic motor. The hydraulic oil supply / discharge passage includes a first hydraulic oil passage connected to one hydraulic oil supply / discharge port of the hydraulic motor, and a second hydraulic oil passage connected to the other hydraulic oil supply / discharge port of the hydraulic motor. And
A first on-off valve that opens and closes the first hydraulic oil passage and a first external connection port that communicates with the first hydraulic oil passage on the hydraulic motor side from the first on-off valve are interposed in the first hydraulic oil passage. Established,
A second on-off valve that opens and closes the second hydraulic oil passage and a second external connection port that communicates with the second hydraulic oil passage on the hydraulic motor side from the second on-off valve are interposed in the second hydraulic oil passage. Established,
The emergency hydraulic device is
A port connector that can be connected to the first external connection port is attached to one end, and a hydraulic oil supply / discharge port that can be introduced into the hydraulic oil container is provided to the other end. 1 oilway,
A port connector that can be connected to the second external connection port is attached to one end, and a hydraulic oil supply / discharge port that can be introduced into the hydraulic oil container is provided to the other end. Two oil passages,
A hydraulic pump interposed in the first oil passage or the second oil passage and driven by a power source operating alone;
An oil passage switching device interposed between the first oil passage and the second oil passage on the port connector side from the hydraulic pump, and for switching a hydraulic oil supply / discharge route in the first oil passage and the second oil passage; The gate opening / closing device according to claim 7, comprising:

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