JPS5840102Y2 - Two-stage gate hoisting device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a two-stage gate performance device.

Conventionally known raising devices for two-tier gates, such as biplane roller gates and roller gates with a closing plate, include (a) those with hoisting machines for each part and operated separately, and (b) lower door. There are those that have a hoist installed on top for operating the upper door, and (iii) those that allow each part to be raised and lowered continuously via differential gears.

However, in (a) above, since the upper and lower membrane islands can be operated separately, the upper door can be tilted to an arbitrary opening degree while maintaining the lower membrane island at an arbitrary opening degree, but the relationship between the upper and lower membrane islands is It is difficult to know the location immediately.

Further, in (b) above, since the hoisting machine is located on the lower door, it is not suitable for a place where the water level on the downstream side is likely to rise to the hoisting machine position.

Furthermore, the method (c) has the disadvantage that it is impossible to separately move the upper door at an arbitrary opening degree, and the structure is relatively complicated.

This invention was made to solve these problems, and will be explained in detail below based on the drawings showing the structure of an embodiment.

In FIG. 1, reference numeral 1 denotes a two-stage gate, which is composed of an upper door 2 and a lower membrane island 3 to which the lower edge of the door is pivoted.

Reference numeral 4 denotes an elevating device for the two-stage gate 1, in which free-swivel pulleys 5, 6, and 7 are provided at left and right symmetrical positions at the upper ends of the upper and lower membrane islands 2 and 3.
．． 8, and each fixed pulley 9, 10 provided at the top of the beer.
11.12, the upper and lower tier rotary drums A and B and their connected bodies 13, and the above-mentioned idle and fixed pulleys 5 to 12, one end of which is fixed to the upper part of the beer, and the other end of which is the upper and lower tier. Ropes 15, 16, wrapped around rotating drums A and B
17.18.

The rotary drum coupling body 13 is provided between left and right rotary drums A and B of the same diameter, which are rotatably mounted on both ends of a common horizontal fixed shaft 19 that is pivotally supported on a machine base 14. .

The internal meshing teeth 20 recessed on the left side of the rotating drum A and the external meshing teeth 21 protruding on the right side of the rotating drum B are connected to connecting gears 22.2 and 22, respectively.
3 are engaged.

The connecting gears 22 and 23 are connected to a rotary disk 27 rotatably mounted on the horizontal fixed shaft 19, and a rotary support shaft 24 rotatably supported in a shaft hole 25 provided parallel to the horizontal fixed shaft 19. are attached to both ends of the

Further, a toothed portion 26 is provided on the outer periphery of the rotating disk 27, and a brake gear or a power gear (not shown) is meshed with this toothed portion 26.

Further, the rotary drum B is integrally provided with a disk portion 29 on its left side surface having teeth portions 28 on the outer periphery, and the rotary disk 2
7 as well as its tooth portions 26 and 28, it is possible to appropriately switch gear transmission or braking of low-speed rotational power and receive it.

In addition, the idler pulley 5 in the upper door 2 and the lower layer 3,
The number of threads Ma and Mb of the rope 15 and 17 on the 7 side, and the number of teeth T of the internal meshing tooth portion 20 and the external meshing tooth portion 21
The relationship between a and Tb is set as Ma/Mb=Ta/Tb.

At this time, the number of teeth of the connecting gears 22 and 23 meshing with both the toothed portions 20 and 21 is the same, and as described above, the rotary drums A and B have the same diameter.

The rotating drums around which the ropes 16 and 18 are wound and their connecting bodies have the same structure as the above-mentioned rotating drums A, B and their connecting bodies 13, so the explanation will be omitted (the same applies to the following explanations). be).

Next, the two-stage gate presentation device 4 having the above-described structure will be described.
Explain the operation.

First, in order to make the upper door 2 have an arbitrary inclination angle (opening degree), a braking gear (not shown) is actuated through the teeth 28 of the disc part 29, and a power gear (not shown) is actuated through the teeth 26 of the rotating disc 27. (not shown) may transmit low-speed rotational (forward or reverse) power.

In other words, the rotation of the rotating disk 27 is caused by the rotation of the connecting gear 22.2.
3 and the rotating drum A, the rope 15 can be raised and lowered, and the upper door 2 can be tilted at any angle around the upper side of the lower layer 3.

Therefore, in order to raise and lower the upper and lower layers 2 and 3 together, a braking gear (not shown) is actuated through the teeth 26 of the rotating disk 27, and a power gear (not shown) is actuated through the teeth 28 of the disk 29.
(not shown), it is sufficient to transmit forward or reverse low-speed rotational power.

As a result, the rotation of the disc part 29 raises and lowers the lower layer 3 through the rotary drum B and its rope 17, and further, the rotation of the disc part 29 moves the rotary drum B, the connecting gears 22, 2
3. It is transmitted through the rotating drum A and its rope 15, and from the above-mentioned relationship Ma/Mb=Ta/Tb, the lower layer 3
The upper door 2 can be raised and lowered by the height of the elevator.

In addition, since the opening degree of the upper door 2 is determined only by the rotation angle of the rotating disk 27, if an indicator (not shown) is attached to the rotating disk 27, the opening degree can be immediately known from the indicator. .

Note that the connecting gears 22 and 23 do not necessarily have to have the same number of teeth, and can be set to any desired number of teeth depending on the combination of the internal meshing tooth portion 20 and the external meshing tooth portion 21, respectively.

FIG. 2 shows a second embodiment of this invention, in which the teeth 20 of the rotary drum A that mesh with the connecting gear 22 are of the circumferential mesh type, and the rest is the same as the first embodiment.

That is, in this second embodiment, the connecting gears 22, 23 are set to mesh with the circumscribed meshing teeth 20C, 21 of both rotating drums A, B.

In this case, since the rotation directions of both rotating drums A and B are the same, the two-stage gate is most suitable for a biplane roller gate as shown in FIG.

In addition, in this embodiment, the diameter Da of the rotating drums A and B is
, Db are set to have a relationship of Da/Db=Ma/Mb.

Of course, in this case, the number of teeth of the connecting gears 22 and 23 is the same, but Da, Db and the circumscribing meshing gear 20C
By appropriately selecting a combination with the number of teeth of gear 921, the number of teeth of both gears 22 and 23 can be set to different values.

Note that the other configurations and operations of the second embodiment are the same as those of the first embodiment, so explanations thereof will be omitted.

This device has an extremely simple structure as described above, and allows the upper and lower floors to be raised and lowered at the same time while the upper door is held at a predetermined opening, and the upper and lower floors can be raised and lowered at the same time, allowing each to be adjusted as desired. Furthermore, the opening degree of the upper door can be set to any desired opening degree by raising or lowering only the upper door, and the opening degree of the upper door can be easily determined at any desired lifting/lowering position of the lower layer, which greatly improves the efficiency of the equipment. It has the advantage of being able to be made smaller.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view including a partial functional explanatory diagram showing a first embodiment of a hoisting device for a two-stage gate according to the present invention, and FIG.
FIG. 2 is a longitudinal sectional view similar to FIG. 1 showing the embodiment. A, B...Rotating drum, 1...Two-tier gate, 2...Upper door, 3...Lower layer,
4...Hoisting device, 5-8...Idle pulley, 9-12...Fixed pulley, 15-18...
...Rope, □19...Horizontal fixed axis, 20,2
0 C, 21... Teeth, 22゜23...
・Connection car, 24...Support shaft, 26.28...
... Tooth section, 27 ... Rotating disk, 29 ...
...Disc part.

Claims (1)

[Scope of utility model registration request] Idle pulleys 5 to 8 provided at the left and right positions of the superior and inferior membrane islands 2 and 3
and fixed pulleys 9 for the upper and lower doors installed on the left and right vias.
12, one end of each rope 15-18 is fixed on the via, and the other end of each rope 15-18 is pivoted on each horizontal fixed shaft 19 provided on the via. One of the rotating drums B is integrally provided with a disc portion 29 having teeth 28 on its outer circumferential surface, and a disc portion 29 between the surface rotating drums A and B is wound around the rotating drums A and H for the upper and lower stages. A rotary disk 27 having teeth 26 on its outer peripheral surface is pivotally mounted on the horizontal fixed shaft 19, and teeth 20 and 21 are provided on opposite ends of both rotating drums A and H, and the rotating disk 27 has teeth 26 on its outer peripheral surface. Connecting gears 22.23 are attached to both ends of a support shaft 24 pivoted to the plate 27 in parallel with the horizontal fixed shaft 19, and the connecting gears 22.23 are connected to the teeth 20, 21 of both rotating drums A and B. mesh with the
A two-stage gate winding device characterized in that a braking means and a rotary power transmission means are alternately and switchably connected to the toothed portions 26 and 28 of the rotary disk 27 and the disk portion 29 via a gear device. Device.