JP6473731B2 - Switchgear and its oiling method - Google Patents

Description

The present invention relates to an opening / closing device for raising and lowering a door of a sluice, and a method for supplying oil to the same.

Opening and closing devices that raise the door body by transmitting the driving force of the motor (driving source) through a power transmission mechanism having a plurality of members such as gears are installed in sluices such as waterways and rivers (patents) Reference 1). Each member of the power transmission mechanism of the switchgear is prevented from being burned or worn by refueling. The splash lubrication method, which is one of the oil supply methods, is a method of splashing oil by supplying gears that are partially immersed in the oil reservoir and generating splashes. The splash lubrication method is used. The open / close device splashes oil by a gear of a power transmission mechanism that rotates when the door body is raised and lowered.

Japanese Patent Laying-Open No. 2015-129390

However, when the state where the door body is arranged at the lowest position (that is, the position where the door body is not lowered any more) continues to be applied to the opening / closing device employing the splash lubrication method, There was a problem that there was no opportunity for the gears to rotate, and oil supply to each member of the power transmission mechanism was delayed.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide an opening / closing device capable of supplying oil for lubrication without raising the door disposed at the lowest position. .

The opening / closing device according to the first aspect of the present invention is an opening / closing device that lifts and lowers a door body by a driving force transmitted through a power transmission mechanism having a gear, the chain connected to the door body, An output wheel that is provided in mesh with a chain, receives a driving force transmitted from a driving source by the power transmission mechanism, rotates in a collecting direction, and raises the door body. Provided in an immersed state, the output wheel rotates in accordance with the rotation in the recovery direction and the rotation in the delivery direction opposite to the recovery direction, and the chain is arranged with the door body at the lowest position. In the state, the output wheel has a length capable of rotating in the delivery direction, and the driving force is applied from the driving source via the power transmission mechanism in a state where the door body is disposed at the lowest position. Send the output foil Is rotated in the direction out, it supplies the lubricating oil by rotating the gear without increasing the door body to the power transmission mechanism.

According to a second aspect of the present invention, there is provided an oil supply method for supplying lubricating oil to the power transmission mechanism of an opening / closing device that raises and lowers a door body by a driving force transmitted through a power transmission mechanism having a gear. In the first step, the gear is provided so as to be partially immersed in the lubricating oil, and the gear is provided in mesh with the chain connected to the door body, and the driving force is transmitted from the driving source by the power transmission mechanism. has been rotated to the collection direction, the output wheel to raise the door body, in a state where the door body is arranged at the lowermost position, the and the recovery direction with the rotate in the opposite winding direction, the by rotating the gear without increasing the door body have a second step you supply the lubricating oil to the power transmission mechanism, said chain, in a state where the door body is arranged in the lowermost position The output foil is Ru length der rotatable direction.

The switchgear according to the first invention is provided in a state where the gear is partially immersed in the lubricating oil, and rotates in accordance with the rotation in the recovery direction of the output foil and the rotation in the feed direction opposite to the recovery direction. The chain has a length that allows the output foil to rotate in the feed-out direction with the door placed at the lowermost position. It is possible to supply the lubricating oil to the power transmission mechanism by rotating the gears by the rotation in the feeding direction.

The oil supply method according to the second aspect of the present invention includes a first step in which the gear is partially immersed in the lubricating oil, and a gear connected to the chain connected to the door body, and is driven by a power transmission mechanism. As the drive wheel is transmitted from the power source and rotated in the collection direction, the output wheel that raises the door body is rotated in the delivery direction opposite to the collection direction with the door body in the lowest position. And the second step of rotating the gear, the lubricating oil can be supplied to the power transmission mechanism even when the door body is disposed at the lowest position.

It is explanatory drawing of the switchgear which concerns on one embodiment of this invention. It is explanatory drawing of the gearwheel of the switchgear. It is explanatory drawing which shows operation | movement of the switchgear.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
As shown in FIGS. 1 and 2, the opening / closing device 10 according to an embodiment of the present invention raises and lowers the door body D by a driving force transmitted through a power transmission mechanism 12 including gears 11 and 11a. It is an apparatus, and is engaged with the chain 13 connected to the door body D and the chain 13, and is rotated in the collecting direction by the driving force transmitted from the electric motor (an example of the driving source) 18 by the power transmission mechanism 12. And the output foil 14 which raises the door body D is provided. Details will be described below.

As shown in FIG. 1, the opening / closing device 10 includes a support base 16 fixed to the base portion 15, a housing 17 supported by the support base 16, and an electric motor 18 attached to the housing 17. A power transmission mechanism 12 connected to the output shaft of the electric motor 18 and applied with a driving force from the electric motor 18 is provided in the housing 17. The power transmission mechanism 12 includes a rotating shaft, a worm gear (not shown), and FIG. It is comprised by several members, such as the gearwheels 11 and 11a to show.

As shown in FIG. 2, the gears 11 and 11 a with different diameters are provided in a state of being partially immersed in the lubricating oil L, respectively.
As shown in FIG. 1, the output wheel 14 to which a driving force is applied from the electric motor 18 via the power transmission mechanism 12 is provided so that both ends mesh with the chain 13 connected to the base portion 15 and the door body D, respectively. ing. In addition to the output wheel 14, a plurality of guide auxiliary gears 19 disposed in the vicinity of the base portion 15 are meshed with the chain 13.

The gears 11, 11 a and the output wheel 14 are rotated by the operation of the electric motor 18, and the door body D is moved up and down by the rotation of the output wheel 14. The output shaft of the electric motor 18 can rotate in two directions, the output wheel 14, when the output shaft of the electric motor 18 is rotated in a first direction, rotating in the collection direction to raise the door D, the electric motor 18 When the output shaft rotates in the second direction, the output shaft rotates in the delivery direction in which the door body D is lowered (the direction opposite to the collection direction).

Therefore, the output wheel 14 raises the door body D by rotating in the collection direction, and lowers the door body D by rotating in the delivery direction. Due to the rotation of the output foil 14 in the feed-out direction, the lower end of the door D comes into contact with the riverbed and cannot be lowered any further. In this Embodiment, let the height position where the lower end of the door body D contacts a river bottom be the lowest position. When the door body D is arranged at the lowest position, as shown in FIG. 1, the entire region from the output wheel 14 of the chain 13 to the door body D is arranged vertically.

The chain 13 has a length in which the output wheel 14 can be further rotated in the feeding direction with the door body D arranged at the lowermost position, and the door 13 is output with the door body D arranged at the lowermost position. When the wheel 14 rotates in the feed-out direction, the chain 13 is slackened in the region from the output wheel 14 to the door body D as shown in FIG.

The gears 11, 11 a rotate with the rotation of the output wheel 14 in the collection direction and the rotation of the delivery direction due to the operation of the electric motor 18, splashing the lubricating oil L to generate splashes of the lubricating oil L, and the power transmission mechanism Oil supply (supply of lubricating oil L) is performed on each of the 12 members (rotary shaft, worm gear, gears 11, 11a, etc.).
When the output wheel 14 further rotates in the feeding direction with the door body D disposed at the lowest position, the gears 11 and 11a can supply oil to each member of the power transmission mechanism 12. Therefore, the opening / closing device 10 can supply oil to each member of the power transmission mechanism 12 without raising the door body D arranged at the lowest position.

Therefore, the oil transmission method according to the embodiment of the present invention, that is, the power transmission mechanism 12 of the opening / closing device 10 that raises and lowers the door D by the driving force transmitted through the power transmission mechanism 12 including the gears 11 and 11a. The lubrication oil L is supplied to the gears 11 and 11a in a state where the gears 11 and 11a are partially immersed in the lubrication oil L and the chain 13 connected to the door body D. The driving force is transmitted from the electric motor 18 by the transmission mechanism 12 to rotate in the collecting direction, and the output wheel 14 that raises the door body D is opposite to the collecting direction in a state where the door body D is arranged at the lowest position. The second step of rotating the gears 11 and 11a and splashing the lubricating oil L in accordance with the rotation in the feed direction of the oil.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and all changes in conditions and the like that do not depart from the gist are within the scope of the present invention.
For example, when it is sufficient to supply lubricating oil only to the entire outer peripheral portion of the gear, it is only necessary to rotate the gear, and it is not necessary to splash the lubricating oil and generate splashes.
Moreover, the lowest position of a door body should just be a position which cannot drop a door body any more, and a door body does not necessarily need to contact a riverbed in the lowest position.

10: switchgear, 11, 11a: gear, 12: power transmission mechanism, 13: chain, 14: output wheel, 15: foundation, 16: support base, 17: housing, 18: electric motor, 19: auxiliary gear, D: Door body, L: Lubricating oil

Claims (2)

In an opening and closing device that raises and lowers the door body by a driving force transmitted through a power transmission mechanism including a gear,
A chain connected to the door body;
An output wheel that is engaged with the chain, is rotated in the collection direction by being transmitted with a driving force from a driving source by the power transmission mechanism, and raises the door body;
The gear is provided in a state of being partially immersed in lubricating oil, and rotates in accordance with the rotation of the output foil in the recovery direction and the rotation in the feed direction opposite to the recovery direction,
The chain has a length that allows the output foil to rotate in the delivery direction in a state where the door body is arranged at the lowest position .
In the state where the door body is disposed at the lowest position, a driving force is applied from the drive source via the power transmission mechanism to rotate the output wheel in the delivery direction, and the gear without raising the door body. switchgear characterized that you supply the lubricating oil to the power transmission mechanism to rotate the. In an oil supply method of supplying lubricating oil to the power transmission mechanism of an opening / closing device that lifts and lowers the door body by a driving force transmitted through a power transmission mechanism including a gear,
A first step of providing the gear in a state of being partially immersed in the lubricating oil;
The door body is provided with an output wheel that is engaged with a chain connected to the door body, is rotated in the collecting direction by a driving force transmitted from a driving source by the power transmission mechanism, and lifts the door body. In the state of being arranged at the lower position, as the feed direction is rotated opposite to the collection direction, the gear is rotated without raising the door body and the lubricating oil is supplied to the power transmission mechanism. have a a second step you,
The chain, the state where the door body is arranged at the lowermost position, fueling wherein said output wheel is characterized in length Der Rukoto rotatable in said feed direction.

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