JPS5855288B2 - Lifting device for water gate door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a water gate with a vertically movable water gate, in which the water gate is rolled up to open the water gate, and in an emergency such as a flood, the water gate is suddenly lowered to close the water gate. This invention relates to a functional lifting device for water gate doors.

Conventionally, a device for opening and closing a water gate by moving the water gate up and down involves gears meshing with a ladder-like rack member fixed to the water gate, and this gear being connected to a driving shaft that is rotated manually or powered by an engine. There was a device that rotated in conjunction to move the water gate up and down.

In this type of lifting device, if the drive source is manual, it takes time to lift and lower, especially the lowering operation, and if the drive source is motorized, electricity or gasoline is used, so in the labor-saving and energy-saving era, Not only is it truly unreasonable, but
There was a risk that it would take too much time in an emergency situation such as a flood, leading to an unexpected disaster.

The present invention aims to solve the above-mentioned problems, and its structural features include: a driving shaft that rotates in conjunction with a manual bundle; A brake casing is installed between the brake casing and the driving shaft, and the driving shaft rotates only when the driving shaft rotates in the direction of pushing down the water gate door. a one-way rotational clutch device that transmits force to the brake casing; and a one-way rotation clutch device provided on the driving shaft side, which slides the brake casing only in the direction in which the driving shaft raises the water gate door when activated, and engages with the driving shaft. a brake device that separates the brake casing from the driving shaft when the driving shaft is not in operation;
and a ratchet mechanism for preventing natural fall when ascending, which is composed of a pawl gear that is slidable along the drive shaft and a ratchet pawl provided on the machine frame, and a gear train on the brake casing. and a driven wheel that is connected through the water gate and constantly engages with a rack member provided at one end of the water gate to move the water gate up and down.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, the water gate door elevating device of the present invention includes a driving section 1 on the drive side and a driven section 100 on the water gate side.
It consists of

A driving shaft 3 that rotates in conjunction with the manual needle 2 is provided within the machine frame 1a of the driving section 10, and is rotatable on the driving shaft 3 via a needle bearing 4a, and is rotated in the axial direction of the driving shaft 3. A one-way rotation clutch device 30 to which a slidable brake casing 4 is attached, and transmits the rotational force of the driving shaft 30 to the brake casing 4 only when the driving shaft 3 rotates in the direction of lowering the water gate door (as shown). is interposed between the brake casing 4 and the driving shaft 3, and is provided on the driving shaft 3 side, and when activated, the driving shaft 3 slides the brake casing 4 only in the direction in which the water gate is raised, so that the driving shaft 3 When engaged, the brake casing 4 and the driving shaft 3 are connected when not in operation.
A brake device 40 for disengaging is provided.

Also, in the machine frame 1a, a driven shaft 1 provided in the driven part 100 is provided.
A centrifugal brake 60 is provided which is interlocked with 01 via a gear train and is activated when the water gate is lowered.

The manual handle 2 is fixed to one end of the drive shaft 5, and engages a bevel gear 6 fixed to the other side of the drive shaft 5 with a bevel gear 7 fixed to the drive shaft 3, thereby interlocking rotation of the drive shaft 3. It is designed to let you do so.

The drive shaft 5 is rotatably supported by a bearing case 8 attached to the machine frame 1a via bearings 9 and 10 in the direction of winding up or pushing down the water gate.

The driving shaft 3 has one end connected to the machine frame 1a via a bearing 11,
The other end constitutes a part of the brake device 40, and is rotatably supported by fitting into a hole 41a of a brake tightening shaft 41 screwed onto the machine frame 1a.

As shown in detail in FIG. 3, the one-way rotation clutch device 30 has shafts 32, 32' mounted on a cylindrical plate member 31 that is fixed to the driving shaft 3 and rotates integrally with the drive shaft 3. Ratchet pawls 33 and 33' are rotatably attached to each of the ratchets 33 and 33', and are biased to rotate clockwise in the middle clock in FIG. 3 by springs 34 and 34'.

The groove portion 4b of the cylindrical brake casing 4 with a convex cross section has a
Ratchet teeth 35 made of internal gears are formed at positions that can engage with these ratchet pawls 33, 33', and the ratchet teeth 35 engage with the ratchet pawls 33, 33' only when rotating in the direction of pushing down the water gate door. configured to engage.

The brake device 40 allows the brake casing 4 to slide into and out of engagement with the driving shaft 3 .

The configuration will be explained below. The brake tightening shaft 41, which moves forward and backward while rotating during operation, is a plate-shaped brake tightening shaft 41 that is screwed onto a threaded portion cut into the machine frame 1a and moves together with the brake tightening shaft 41 via a bearing 42. The brake pressing fitting 43 is fitted to the driving shaft 3 so as to be slidable in the axial direction thereof.

A disc-shaped friction plate 44 is provided on the outer circumferential surface of the brake pressing fitting 43 on the brake casing 4 side. With the input or release of the frictional force,
The brake pressing metal fitting 43 and the end of the large diameter cylindrical body portion 4c of the brake casing 40 are engaged or disengaged.

The brake pressing metal fitting 43 is biased toward the brake tightening shaft 41 by a plate spring 46 whose one side is in contact with a stopper member 45 provided at the stepped portion of the driving shaft 30 .

Further, a pawl gear 48 is fitted to the end side of the small diameter cylindrical body portion 4d of the brake casing 4 so as to be rotatable on the drive shaft 3 via a bushing 47 and to be slidable along the drive shaft 3.
A plate-shaped brake receiving metal fitting 49 is fixed to the driving shaft 3, located on the left side of the pawl gear 48 in the figure.

Disc-shaped friction plates 50 and 51 are interposed between the brake catch fitting 49 and the pawl gear 48 and between the pawl gear 48 and the end of the small diameter cylindrical body portion 4d of the brake casing 4, and are interposed between the pawl gear 48 and the end of the small diameter cylindrical body portion 4d of the brake casing 4. 3
The drive shaft 3 is fitted so as to be rotatable and slidable along the driving shaft 3.

The brake casing 4, the pawl gear 48, and the brake retaining fitting 49 move as the brake casing 40 slides in the front-rear direction as the brake tightening shaft 41 moves forward and backward.
When a frictional force of 0.51 is applied or released, they are engaged or released.

Note that, as shown in FIG. 4, the pawl gear 48 rotates in the direction of lowering the water gate door (as shown) only when the machine frame 1a is rotated.
It is adapted to be latched to a ratchet pawl 52 provided at.

In the brake device 40 having the above configuration, a nozzle 53 shown by a two-dot chain line in FIG. 1 is attached to the end 41b of the brake tightening shaft 41 exposed outside the machine frame 1a.

By rotating the bundle 53 in the forward and reverse directions, the brake device 40 is activated by the input of frictional force, and deactivated by the release of the frictional force.

A gear 16 is rotatably supported in the middle of a transmission shaft 14, which is rotatably supported in the machine frame 1a through bearings 12 and 13 in parallel with the driving shaft 3, through a needle bearing 15.

The gear 16 has a large diameter gear part 16a and a small diameter gear part 16b, and is constantly engaged with the gear part 4e of the brake casing 4 on one side of the large diameter gear part 16a, and fixed to the brake shaft 61 on the other side. It is constantly engaged with gear 62.

The centrifugal brake 60 includes a centrifugal brake shaft 61 that is rotatably supported on the machine frame 1a via bearings 63 and 64, and a brake shoe 66 that is rotatably supported and attached to the centrifugal brake shaft 61 by a shaft 65. , a drum-shaped sliding surface 67 located opposite to the brake shoe 66, and a casing 68 having the sliding surface 67 inside and whose main body is fixed to the machine frame 1a.

The centrifugal brake 60 generates braking force by causing the brake shoe 66 to slide against the sliding surface 67 by rotating the centrifugal brake shaft 610 in conjunction with the rotational force of the transmission shaft 140.

From the small diameter gear part 16b of the gear 16, the gear 20 fixed to the transmission shaft 14 passes through the gear 17, the pinion shaft 18, and the gear 19.
Therefore, 40 revolutions of the brake casing are transmitted to the transmission shaft 14 by changing the rotational speed.

In the figure, 21 and 22 are bearings that support the pinion shaft 18 on the machine frame 1a.

The transmission shaft 14 is connected to the pinion shaft 102 on the driven part 100 side via the interlocking shaft 23.

The pinion shaft 102 is rotatably supported by the machine frame 100a of the driven part 100 via bearings 103 and 104, and the gear 10
5 is always engaged with a gear 106 fixed to the driven shaft 101, so that the rotating speed is changed and interlocked with the driven shaft 101.

The driven shaft 101 has a bearing 107°108.1 on the machine frame 100a.
09, and is constantly engaged with a rack member 111 provided at one end of the water gate door (not shown) through a gear 110 fixed to the driven shaft 101, and the water gate door is connected to the driving shaft 30. It is designed to move up and down in conjunction with rotation.

As shown in FIG. 5, the rack member 111 consists of two mutually parallel plates 111. A plurality of pins 111b that mesh with the gear 110 are arranged at regular intervals between a and l11a.

In the figure, reference numerals 112 and 112' indicate guide rollers that guide the rack member 111 in the vertical direction.

Next, the operation of this embodiment will be explained.

When raising the water gate door, the brake device 40 is operated to connect the driving shaft 3 and the brake casing 4.

That is, a removable bundle 53 is attached, and the bundle 53 is rotated to tighten the brake tightening shaft 41 in the brake casing 4 direction.

Then, the brake pressing fitting 43 is pushed in the same direction, and the brake pressing fitting 43, the friction plate 44, and the brake casing 4 are pushed from the right side of the brake device 40 to the left side in FIG.
, the friction plate 50, the pawl gear 48, the friction plate 51, and the brake catch fitting 49 are engaged and integrated by frictional force.

Thereafter, the manual bundle 2 is rotated in the water gate winding direction shown in FIGS. 1 and 2, and the driving shaft 3 is rotated in conjunction with the bevel gear 6.7.

As the driving shaft rotates 30 times, the brake casing 4 rotates in the direction of winding up the water gate shown in FIG.
9. Rotate the transmission shaft 14 and the interlocking shaft 23 via 20,
The gears 105 and 106 of the driven part 100 are transmitted and rotated, and the driven shaft 101 is rotated in conjunction.

The gear 110 rotates as the driven shaft 1010 rotates, the rack member 111 moves upward guided by the guide rollers 112, 112', the water gate is rolled up, and the water gate is opened.

When the driving shaft 3 rotates clockwise in FIG. 3 during winding up the water gate door, the plate member 31 and the brake casing 4 rotate at the same speed and in the same direction, so the one-way rotation clutch device 30 does not operate.

Note that even if the manual bundle 20 rotations are temporarily stopped during winding, the pawl gear 48 is locked to the ratchet pawl 52.
The sluice gate never descends.

That is, the manual bundle 2 does not rotate, of course.

In an emergency such as during a flood, by rotating the bundle 53 to loosen the tightening force of the brake tightening shaft 41, the frictional force exerted by the brake device 40 is released, and the brake device 40 is released.
deactivate.

Therefore, the brake casing 4 is separated from the driving shaft 3,
The driving shaft 3 does not rotate, and the water gate suddenly descends due to its own weight.

Of course, the manual bundle 2 does not rotate at this time either.

At the same time, the rotational force of the transmission shaft 140 is transmitted to the centrifugal brake shaft 61 via the gear 16 and the gear 62, and the brake shoe 6
6 slides on the sliding surface 67 to generate braking force.

This adjusts the speed of the sluice gate's sudden descent.

Although the brake casing 4 idles in the downward direction, the ratchet teeth 35 do not engage with the ratchet pawls 33, 33', so the one-way rotation clutch device 30 does not operate.

During a steep descent, if the water gate cannot be lowered under its own weight due to obstacles such as floating objects, rotate the nozzle 2 in the downward direction.

Then, the driving shaft 3 rotates via the bevel gear 6°7, and the ratchet pawl 33,
33' engages with the ratchet teeth 35, and the brake casing 4 rotates in the downward direction.

Therefore, gear 16 and subsequent gears operate, and the water gate door is pushed down.

When the obstacle is removed, the condition is again the same as the steep descent operation, and the ratchet pawls 33, 33' and ratchet teeth 35
The engagement is released, the driving shaft 3 does not rotate, and the water gate suddenly descends under its own weight.

Of course, the manual bundle 2 does not rotate at this time either.

The present invention is a lifting device for a water gate having the above-mentioned configuration, in which the water gate is raised when the brake device is activated and the manual handle is rotated, and the water gate is raised and lowered when the brake device is deactivated. The sluice gate can be lowered rapidly by its own weight without any operation of a noddle, etc., and the raising and lowering operation of the sluice gate is made very simple and can be carried out without any danger.

Therefore, according to the device of the present invention, the lifting and lowering operations can be dramatically shortened compared to conventional manual devices.

In addition, since the device of the present invention does not require fuel such as electricity or gasoline during operation, it achieves significant labor and resource savings compared to conventional power-driven devices, and also prevents power outages and failures of the prime mover during steep descent operations. There is no need to consider it.

Furthermore, even if the water gate stops midway during a sudden descent due to an obstacle or water pressure on the water gate, the one-way rotation clutch device will operate and the bundle can be pushed down by manually rotating the bundle in the downward direction. Moreover, it is extremely safe because the manual bundle will not rotate unexpectedly under any operating conditions.

[Brief explanation of drawings]

FIG. 1 is a front view showing one embodiment of the present invention, and FIG. 2 is a front view showing one embodiment of the present invention.
A cross-sectional plan view of the device shown in the figure, Figure 3 is from ■-■ in Figure 2.
FIG. 4 is a longitudinal sectional view taken along the line IV--IV in FIG. 2, and FIG. 5 is a longitudinal sectional view taken along the line ■--■ in FIG. 1...Moving unit, 1a...Machine frame, 2...
...Manual bundle, 3...Driving shaft, 4...
... Brake casing, 14 ... Transmission shaft, 23 ... Interlocking shaft, 30 ... One-way rotation clutch device, 40 ... Brake device, 48
....Claw tooth bundle, 52.....Ratchet claw,
100... Driven part, 101... Driven shaft, 111... Rack member.

Claims (1)

[Claims] 1. A driving shaft that rotates in conjunction with the manual bundle, a brake casing rotatably attached to the driving shaft and slidable in the axial direction of the driving shaft, and between the brake casing and the driving shaft. a one-way rotation clutch device that is interposed in the drive shaft and transmits the rotational force of the drive shaft to the brake casing only when the drive shaft rotates in the direction of pushing down the water gate door; a brake device that slides a brake casing into engagement with the driving shaft only in a direction in which the driving shaft raises the water gate door when activated, and separates the brake casing from the driving shaft when not activated; and a brake device that causes the driving shaft to rotate. A ratchet mechanism for preventing natural fall when ascending, comprising a pawl gear that is movable and slidable along the driving shaft and a ratchet pawl provided on the machine frame; 1. A lifting device for a water gate, comprising a driven shaft connected via a gear train and constantly engaged with a rank member provided at one end of the water gate to move the water gate up and down.