KR101946615B1 - Floodgate lifter - Google Patents

Abstract

The present invention relates to an elevating apparatus for elevating a float elevation by a lifting shaft, A power unit for supplying power to move the lifting shaft up and down; A lifting device installed between the lifting shaft and the power unit to convert the rotational motion of the power unit into linear motion and to move the water gate upward or downward; And a hydrographic reduction device connected to the elevation device for rotation and connected to the elevation device to convert the rotation of the lift device into a linear motion to attenuate the impact of the hydrograph generated when the hydrograph is closed, When the power of the power unit is cut off and the gate is closed due to the load, the hydraulic pressure is damped by the hydraulic device and the hydraulic pressure is adjusted to adjust the closing speed.

Description

{Floodgate lifter}

The present invention relates to an elevator for a handrail, and more particularly to a handrail elevator for controlling a descending speed of a lifting and lowering hand for opening and closing a waterway to prevent a collision, and more particularly, The present invention relates to an elevator for a hydrometer which is capable of adjusting the closing speed by controlling the hydraulic pressure while damping due to a hydraulic device.

Generally, the water gate is installed in the reservoir, coastal area, agricultural water channel, and is used for fresh water, flow control, prevention of back flow, etc. The water gate is made of heavy metal material and the elevator for the water gate is installed do.

[0003] There are various methods of operating the elevator for a handrail according to its operation method and structure. For example, there is a method of using a pinion and a rack to rotate a pinion by a plurality of gears interlocked with each other in a power unit to lift a gate through a rack.

As shown in Fig. 1, the driving motor 110 having the driving shaft 111 and the driving shaft 111 provided in the driving motor 110 are rotated vertically A controller 130 for controlling the operation of the elevator 120 by providing an elevator 120 for opening and closing the elevator 101 while lifting and lowering the elevator 101 by providing a restraining force for restricting rotation of the driving shaft 111 of the driving motor 110 The proposed hydrological gate opening and closing device.

In the water gate opening and closing apparatus shown here, when the driving motor 110 rotates, the driving shaft 111 rotates, the driving gear g1 coupled to the driving shaft 111 rotates, and the transmission gear g2 rotates, The rack 123 is moved up and down as the rack gear 122 rotates as the driven gear g3 rotates so that the water gate 101 connected to the end of the rack 123 can be opened and closed.

2, the controller 130 pushes down the pedal switch 131 to push the plunger 133 of the hydraulic cylinder 134 against the link 132 formed into the lever, and the hydraulic cylinder 134 Is supplied to the pad 137 via the hydraulic line 138 to be connected to the gear train and presses the disc 136 inserted between the both pads 137 to the both sides, The rotational force transmitted from the driving motor 110 is attenuated.

However, since this control method requires control by directly operating the pedal switch 131 with a manual force, there is a problem that additional attraction is required. Since the disc 136 and the pad 137 are consumed due to friction, There is a problem.

In order to solve such a problem, Japanese Patent Laid-Open No. 10-1283205 discloses another embodiment of the control device 130.

3, the controller 300 controls the flow of the fluid filled in the hydraulic pump 330 to the circulation line (not shown) inside the hydraulic pump 330 while rotating the pump shaft 320 connected to the driving motor 110 350 and the fluid tank 310. The circulating fluid raises the internal pressure of the hydraulic pump 330 so that the rotational speed of the pump shaft 320 is reduced and the rotation of the drive shaft 111 is attenuated, Movement speed is reduced.

Further, the flow control valve 370 is provided to arbitrarily control the flow rate circulated in the control device 300, so that the flow rate to the hydraulic pump 330 is controlled, It becomes possible to control.

However, in the above-described method, when the driving shaft 111 rotates fast and the hydraulic pressure inside the hydraulic pump 330 is strong, the inside of the hydraulic pump 330 can not withstand the hydraulic pressure and leakage occurs between the inner surface of the pump casing and the vane, And the speed of the watercourse can not be slowed down. Therefore, the speed control can not be performed. Therefore, there is a problem that the impact of the descent of the watercourse effectively can not be mitigated.

KR 10-1283205

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the problems of the conventional elevator for a handrail, and an object thereof is to provide a handrail elevator capable of reducing a descending speed when the handrail is closed.

Another object of the present invention is to provide a handlebar elevator which can be automatically controlled without requiring a special attraction force when damping the rotational force to control the speed of the water gate.

Another object of the present invention is to provide an elevator for a watercraft which can be used for a long period of time without consuming components of the watercraft reduction device in a short period of time.

It is another object of the present invention to provide an elevator for a watercraft which prevents the controller from malfunctioning even when a large force is applied to the controller due to rapid movement of the watercraft.

In order to accomplish the above object, the present invention provides a water treatment system comprising: a water gate which is lifted by a lifting shaft and controls a flow of a fluid; A power unit for supplying power to move the lifting shaft up and down; A lifting device installed between the lifting shaft and the power unit to convert the rotational motion of the power unit into a linear motion to move the water gate upward or downward; And a hydrographic reduction device connected to the elevation device for rotation to rotate and to convert the rotation of the lift device into linear motion to attenuate the impact caused by the hydrograph generated when the hydrograph is closed Thereby providing an elevator for a watercraft.

Further, the hydrological decelerator may further include a conversion unit connected to the pinion of the lift device and converting the rotary motion of the pinion, which is rotated by the rack of the lift device, into linear motion when the lifting shaft descends; And a damping unit that attenuates the downward movement of the lifting shaft by damping the linear motion converted by the converting unit.

The conversion unit may include: a cylinder having an oil filled therein; A screw shaft installed in the cylinder in the longitudinal direction and rotating in association with the elevating device; A piston which is located on an inner circumferential surface of the screw shaft and linearly moves in a direction of increasing the hydraulic pressure in the cylinder when the screw shaft rotates forward; And a guide bar for restricting the rotation of the piston and guiding the piston to linear motion when the screw shaft rotates.

The damping unit is provided in the cylinder to discharge the oil in the cylinder with a predetermined pressure to the outside when the piston linearly moves and oil pressure is generated inside the cylinder, And an attenuation port for attenuating the attenuation port.

The flow control valve may further include a flow control valve connected to the attenuation port and adjusting the flow rate of the hydraulic fluid discharged from the damping port to control the damping force of the hydrodynamic speed reducer when the hydraulic pressure in the cylinder increases.

According to the elevator for a handrail of the present invention, it is possible to prevent a strong collision of the gate with the ground by damping the rotation of the lift when the gate is closed by interlocking the gate and the speed reducer for operating the gate. The stability to operation increases.

Further, according to the present invention, since the hydrometechnical reduction device is automatically operated without any operation, the operation of the elevator for the hydromassage becomes simple, so that no additional attraction is required.

Further, since the hydraulic gate reduction device according to the present invention is a hydraulic cylinder, the components can be used for a long period of time, thereby eliminating the economical problems due to the replacement of parts.

Further, the present invention can control the closing speed of the water gate by arbitrarily adjusting the damping force by the water gate decelerator, thereby increasing the versatility in various situations.

In addition, according to the present invention, when the hydrodynamic speed reducer receives a strong hydraulic pressure, the hydraulic fluid is prevented from leaking, so that the hydrodynamic decelerator does not malfunction even if a large hydraulic pressure is applied to the hydrodynamic reducer due to rapid rotation of the hydraulic pad.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing an entire structure of a conventional water gate opening / closing apparatus.
BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a water gate opening / closing apparatus.
3 is a perspective view showing still another embodiment of the conventional control unit.
4 is a front view of the elevator for a hydrometer according to the present invention.
5 is a sectional view showing an internal configuration of the elevator for a handrail of the present invention.
6 is a sectional view showing a gear train of the elevator for a handrail of the present invention.
7 is a cross-sectional view of a hydrometric reducing device of the elevator for a hydrometer according to the present invention.
8 is a sectional view showing a state in which a hydraulic control valve is coupled to a hydrometric reducing device of the elevator for a hydrometer according to the present invention.
FIG. 9 is a sectional view showing a state in which the hydraulic pressure of the hydraulic gate reduction device is increased. FIG.
10 is a sectional view showing a state in which the hydraulic pressure of the hydrometric decelerator is reduced.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an elevator for a handrail according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4, the hydrostatic door 10, the power unit 20, the elevating device 30, the hydro-accelerator 40, .

As shown in FIG. 4, the water gate 10 is located below the elevator 1 for the handwheel 1, and has a lifting axis 3 on the upper side. And the lifting shaft 11 is lifted and lowered as the lifting shaft 11 moves up and down by driving of the power unit 20 described later. 6, when the lifting shaft 11 is moved up and down, the rear surface of the portion where the rack 34 is formed, as shown in Fig. 6, And a roller R for supporting the roller.

As shown in FIG. 5, the power unit 20 supplies power to enable the elevator 1 to be driven. When the rotational force of the power unit 20 causes the lifting shaft 11 to move up and down So that the gate 10 can be raised and lowered. In addition, the power unit 20 can arbitrarily adjust the rotational direction and the rotational force. If the power unit 20 is provided with a clutch (not shown), the power of the power unit 20 can be cut off or connected, Can be selectively transmitted.

The elevating device 30 is for transmitting the power of the power unit 20 to the lifting shaft 11 and is provided inside the gear box GB as shown in FIG. A gear 32, a pinion 33, a rack 34, a coupling gear 35, and a cylinder gear 36.

The drive gear 31 is the gear to which the power of the power unit 20 is first transmitted and is coupled to the power shaft S1 connected to the power unit 20 as shown in Fig. The power shaft S1 is rotated and the driving gear 31 coupled to the power shaft S1 rotates as the rotational speed of the power unit 20. [

The driven gear 32 is engaged and engaged with the drive gear 31 at the longitudinal end of the spindle S2 as shown in Fig. 6, and the rotation of the drive gear 31 due to the rotation of the power unit 20 So that it rotates in a direction opposite to the rotating direction of the power unit 20 due to the teeth.

6, the pinion 33 is coupled to one surface of the spindle S2 so as to be spaced apart from the driven gear 32, the spindle S2 is rotated by the rotation of the driven gear 32, (33) is coupled to the spindle (S2), it rotates so as to coincide with the rotational direction of the driven gear (32).

The rack 34 serves to convert the rotational motion of the power unit 20 into linear motion so that the lifting shaft 11 can move up and down. As shown in FIG. 6, And the pinion 33 is engaged with the pinion 33 so that the lifting shaft 11 can be moved up and down by the rotation of the pinion 33 by the power unit 20, And the water gate 10 are coupled with each other, the water gate 10 can be raised and lowered.

The coupling gear 35 is a gear located at the other end of the driven gear 32 in the spindle S2 and is coupled to the side of the pinion 33 by bolts 51, 20 is transmitted to the pinion 33, the pinion 33 is coupled to the pinion 33 by the bolt 51, so that the pinion 33 rotates at the same speed as the pinion 33.

6, the cylinder gear 36 engages with the engaging gear 35 so that the rotation of the power unit 20 can be transmitted. Further, when the water gate is closed by the load, The pinion 33 engaged with the rack 34 is rotated by the descent of the pinion 33 and therefore the engagement gear 35 coupled to the pinion 33 is rotated to cause the cylinder gear 36 to rotate. Further, by the rotation of the cylinder gear 36, the hydrographic reduction device 40 to be described later is operated.

The hydrological decelerator 40 attenuates the descent of the water gate 10 when the water gate 10 is closed by a load and is connected to the cylinder gear 36 to transmit the rotation of the elevator 30, (41) and a damping portion (42).

The converting unit 41 is a part for converting the rotational motion of the elevating device 30 into a linear motion and is constituted by a cylinder 41a, a screw shaft 41b, a piston 41c and a guide bar 41d.

As shown in FIG. 7, the cylinder 41a is a part forming the body of the conversion part 41. The cylinder 41a is filled with oil O, and the piston 41c, which will be described later, The internal hydraulic pressure is increased by pushing.

The screw shaft 41b is coupled to the cylinder gear 36 and is rotated by the elevating device 30. The screw shaft 41b is located inside the cylinder 41a as shown in FIG. And is coupled with the cylinder gear 36 when the rotation of the elevating device 30 is transmitted to the cylinder gear 36 so that it rotates at the same speed. A screw thread is formed on the outer circumferential surface of the screw shaft 41b, so that the piston 41c described later can be linearly moved.

The piston 41c pushes the oil O inside the cylinder 41a to increase the hydraulic pressure of the hydraulic gate lifting device 40 and is located inside the cylinder 41a as shown in Fig. The piston 41c is not rotated by the guide bar 41d to be described later when the screw shaft 41b is rotated by the cylinder gear 36 so that the screw shaft 41b is rotated by the screw shaft 41b, 41b are pushed to one side along the thread of the piston 41c so that the piston 41c moves linearly and pushes the oil O inside the cylinder 41a. Therefore, the oil pressure inside the cylinder 41a rises.

As shown in FIG. 7, the guide bar 41d is coupled to the cylinder 41a such that the longitudinal direction thereof is parallel to the cylinder 41a. The guide bar 41d is formed so as to be linearly movable without passing through the piston 41c.

7, in order to prevent the oil O from leaking to the side of the cylinder gear 36, the conversion unit 41 is provided with the V-packing V and the V- The V-packing is located on the outer peripheral surface of the piston 41c on the side of the cylinder gear 36 so that the piston 41c pushes out the oil O , The oil (O) is prevented from leaking to the rear of the piston. The packing retainer PR is joined to the rear of the piston 41c by the piston 41c and the bolt 53 so that the oil pressure generated when the piston 41c pushes the oil O pushes the V- Is prevented from being pushed toward the cylinder gear 36 and the oil O leaked from the V-packing V is prevented from leaking to the cylinder gear 36 side.

The internal airtight space of the cylinder 41a on the side of the cylinder gear 36 side by the V-packing V and the packing retainer PR causes the internal pressure of the cylinder 41a to rise in the cylinder 41a when the piston 41c moves, It is possible to prevent the pressure from being generated by piercing the air hole H on one side as shown in Fig.

7, the damping portion 42 is formed with a damping hole 42a as a portion for discharging the oil O when the hydraulic pressure of the converting portion 41 rises, 7, when the piston 41c pushes the oil O by the rotation of the cylinder gear 36 and the screw shaft 41b, as shown in FIG. 7, The attenuation port 42a is formed to be narrower than the internal space of the cylinder 41a so that the oil O can be discharged while the oil pressure is maintained constant.

The elevator 1 may further include a flow rate control valve 43 for controlling the hydraulic pressure of the oil O discharged from the hydrographic speed reducer 40. The flow rate control valve 43 is connected to the flow rate control valve 43, The hydraulic pressure of the oil O discharged from the hydrodynamic decelerator 40 to the damping portion 42 can be adjusted so that the hydrodynamic pressure of the hydraulic fluid O ) Can adjust the closing speed.

The oil tank OT may further include an oil tank OT so that the discharged oil O can be stored after the oil O is discharged. The oil O discharged to the damping port 43a by the piston 41c is returned by the piston 41c and is then returned to the inside of the cylinder 41a by the piston 41c, To the cylinder 41a so as to be filled in the cylinder 41a.

The operation of the elevator for a handrail according to the present invention constructed as above is as follows.

First, when the power unit 20 is operated, the rotational force of the power unit 20 is transmitted to the drive shaft S1 to rotate the drive gear 31, and the driven gear 32 engaged with the drive gear 31 And the spindle S2 engaged with the driven gear 32 rotates, so that the pinion 33 rotates. As a result, the rack 34 engaged with the pinion 33 also moves up and down in accordance with the rotation of the power unit 20, so that the lifting shaft 11 on which the rack 34 is formed moves up and down, So that the water gate 10 coupled to the shaft 11 can move up and down.

When the water gate 10 is closed, the lifting shaft 11 coupled to the water gate 10 is lowered to rotate the pinion 33, and the coupling gear 35 coupled with the pinion 33 is rotated By this rotation, the cylinder gear 36 engaged with the engagement gear 35 is rotated. 9, the screw shaft 41b, which is coupled with the cylinder gear 36 and the bolt 52 by the rotation of the cylinder gear 36, rotates and is screwed to the screw shaft 41b The piston 41c is linearly moved in the direction A shown in Figure 9 by the thread formed on the outer periphery of the screw shaft 41b so that the piston 41c pushes the oil O inside the cylinder 41a So that the internal hydraulic pressure of the cylinder 41a rises.

The oil O in the cylinder 41a is discharged to the attenuation port 42a as shown in Fig. 9 as the oil pressure rises and the piston 41c is moved linearly until the water gate 10 is closed As a result, the hydraulic pressure inside the cylinder 41a is constantly maintained to inhibit the piston 41c from being pushed, and the rotation of the screw shaft 41b is also blocked, thereby reducing the speed at which the water gate 10 is closed. The impact when the water gate 10 collides with the ground can be reduced.

9, the damping rod 42a may further include a hydraulic pressure regulating valve 43 to adjust the hydraulic pressure when the oil O is discharged through the damping rod 42a, 41a can be arbitrarily adjusted. Accordingly, since the linear motion speed of the piston 41c can be adjusted, the closing speed of the water gate 10 can be adjusted.

When the water gate 10 is opened again, as shown in Fig. 10, the elevating device 30 is rotated in the reverse direction, so that, as opposed to when the water gate 10 is closed, the piston 41c is moved in the direction B The oil O returned to the inside of the cylinder 41a due to the return of the piston 41c is returned to the inside of the cylinder 41a and the circulation of the oil O discharged from the cylinder 41a When the oil tank OT is connected to the oil pressure regulating valve 43, the discharged oil O can be returned to the inside of the cylinder 41a.

While the embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. It will be apparent to those skilled in the art that various changes, substitutions, and alterations can be made therein without departing from the spirit of the invention.

1: elevator for elevators 10:
11: Lifting shaft 20: Power unit
30: lifting device 33: pinion
34: Rack 40: Hydraulic decelerator
41: conversion section 41a: cylinder
41b: screw shaft 41c: piston
41d: guide bar 42: attenuator
42a: attenuator 43: flow control valve

Claims (5)

delete delete A water gate 10 which is lifted by the lifting shaft 11 and interrupts the flow of the fluid;
A power unit 20 for supplying power to move the lifting shaft 11 up and down;
A lifting device (not shown) installed between the lifting shaft 11 and the power unit 20 and capable of moving the water gate 10 upward or downward by converting rotational motion of the power unit 20 into linear motion 30); And
The rotation of the elevating device 30 is converted into a rectilinear motion and is attenuated so that the impact caused by the water gate 10 generated when the water gate 10 is closed And a mitigating hydrologic reduction device (40)
The hydrometric reduction device (40)
The pinion 33 of the elevating device 30 is rotated so that the rotation of the pinion 33 rotated by the rack 34 of the elevating device 30 when the lifting shaft 11 is lowered A conversion unit 41 for converting the linear motion into a linear motion; And
(42) for attenuating the descent of the lifting shaft (11) by attenuating the linear motion converted by the converting unit (41)
The converting unit 41,
A cylinder 41a filled with oil O therein;
A screw shaft 41b installed longitudinally inside the cylinder 41a and rotating in conjunction with the elevating device 30;
A piston 41c which is located on the inner circumferential surface of the screw shaft 41b and moves linearly in a direction of increasing the hydraulic pressure inside the cylinder 41a when the screw shaft 41b is rotated forward; And
And a guide bar 41d for restricting the rotation of the piston 41c and guiding the piston 41c to linearly move when the screw shaft 41b rotates. lift. The method of claim 3,
The attenuator (42)
When the hydraulic pressure is generated in the cylinder 41a due to the linear movement of the piston 41c, the oil 41 is discharged to the cylinder 41a so as to discharge the oil O inside the cylinder 41a to the outside in a state of constant pressure. And an attenuation hole (42a) for attenuating a linear motion of the piston (41c). The method of claim 4,
A flow rate control unit that is connected to the attenuation port and adjusts a flow rate of the hydraulic fluid discharged from the damping port when the hydraulic pressure in the cylinder increases, Further comprising a valve (43).

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