JP2555419B2 - Vibration control device and method for hydraulic elevator - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a vibration damping device for a hydraulic elevator, and in particular, reduces an increase in a step between a landing and a car floor at the time of landing and improves riding comfort. And a vibration damping device for a hydraulic elevator suitable for

[Conventional technology]

In conventional damping equipment for hydraulic elevators,
As described in Japanese Patent No. 61-176170, in order to reduce fluffy vibrations (low cycle vibrations) during traveling, a slider for damping is used with a constant force by using a spring force or the like. Was pressing on.

In the above-mentioned prior art, when the loading load in the car during landing changes and the step between the car floor and the landing floor increases, the effect of preventing or reducing this is that the pressure applied to the slider in advance. The frictional force that occurs in the car and the effect on the shock at the time of starting the car and the vibration during running are also determined by the given pressure, the relative position between the hall and the car, the loading load and the vibration of the car. Since the amount is not detected and the pressing force is not changed, there is a problem in reducing and improving the floating and sinking of the car at the time of landing, the shock at the time of starting the car, and the vibration of the car.

[Problems to be Solved by the Invention]

The problem with the conventional hydraulic elevator vibration control device is that the pressing force of the slider cannot be changed in order to reduce the amount of floating / sinking of the car when it is on the floor, shock when starting the car, and vibration during running. was there.

An object of the present invention is to provide a vibration damping device or method for a hydraulic elevator that controls the pressing force of a slider on a guide rail and is safe, easy to use, and comfortable to ride.

[Means for solving the problem]

To achieve the above object, a vibration control device for a hydraulic elevator according to the present invention suppresses vibrations of the car by being pressed by the roller guide and a roller guide that moves up and down together with the car along a guide rail. In a vibration control device for a hydraulic elevator including a slider, a control mechanism for changing the pressing force of the slider according to a change in a control signal is provided, and the control mechanism is configured to load a load when starting a car. It is characterized in that the pressing force of the slider is changed in accordance with the change of (1) to reduce the shock at the start of the car.

When the car is started, the vibration damping device gradually reduces the pressing force of the slider after the driving force and the load are balanced, thereby reducing the shock at the time of starting the car. desirable.

In order to achieve the above-mentioned object, a damping method for a hydraulic elevator according to the present invention controls a pressing force of a slider pressed against a guide rail to suppress vibration of a car. In the shaking method, the pressing force of the slider is changed according to the change of the control signal, and the control signal is changed according to the change of the loading load of the car to prevent the shock at the start of the car. It is characterized by reducing.

Further, in a damping method for a hydraulic elevator that controls the pressing force of a slider pressed against a guide rail to suppress the vibration of a car, the pressing force of the slider is changed according to a change in a control signal. Then, when the car is stopped, the pressing force of the slider is increased to reduce the floating / sinking amount of the car due to the increase / decrease in the load, and when the car is started, the driving force and the load are balanced. After that, the pressing force of the slider may be gradually changed to reduce the shock at the time of starting the car.

[Operation] According to the present invention, the vibration control device for the hydraulic elevator is provided with the control mechanism for changing the pressing force of the slider according to the change in the control signal, and the control mechanism loads the load when the car is started. Since the pressing force of the slider is changed according to the change of the load, the shock at the start of the car is reduced.

Further, the pushing force of the slider is changed according to the change of the control signal, and when the car is stopped, the pushing force of the slider is increased to reduce the floating / sinking amount of the car due to the increase / decrease of the load. Therefore, when the car is stopped, the step between the floor of the car and the floor of the building is reduced.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1, a building 1 has a hoistway 2 and a machine room 3, and a cylinder 5 into which a plunger 4 is fitted is vertically installed in the hoistway 2.

The machine room 3 is provided with a hydraulic mechanism such as a pump 7 having an oil tank 6, a motor 8 and a controller 9.
The pump 7 connected to the cylinder 5 is connected to the cylinder 5 by a pipe 10, and the pump 7 and the motor 8 are controlled by the controller 9.

A rope 12 is wound around a grooved wheel 11 provided on the plunger 4, one end of the rope 12 is fixed to the plunger 4 via a spring 13, and the other end is attached to a car 15 via a spring 14. is there.

A position detector 16, a scale device 17, a vibrometer 18, a roller guide 19, a slider 20, an electromagnetic device 21, a pressing spring 22 and the like are mounted on the car 15 and mounted on a guide rail 23 fixed to the hoistway 2. Along the line, it is guided by the roller guide 19 and is suspended by the rope 12 to move up and down.

Next, a related configuration of the slider and the electromagnetic mechanism will be described with reference to FIG.

As shown in FIG. 2, the related structure is a sliding member composed of one flat sliding surface having a rectangular cross section and a rod fixed to the opposite surface of the sliding surface and having a small disc locking plate. Pendulum 20
Between the electromagnetic mechanism 21 inserted through the rod, the U-shaped support member that is screwed to the roller guide 19 and supports the rod inserted therethrough, and the locking plate that is inserted through the rod and is provided inside the support member. The slider 20 is held by the spring 22, and the flat surface of the slider 20 is normally pressed against the guide rail 23 by the bias of the spring 22. When the electromagnetic mechanism 21 is excited, the slider is exposed to the magnetic field. The tip of the rod of 20 is pulled in the direction of the arrow, and the sliding surface is separated from the guide rail 23.

Therefore, in this embodiment, the roller guide 19 that moves up and down along with the car 15 along the guide rail 23 and the guide rail
In a control device for a hydraulic elevator equipped with a slider 20 that is pressed by 23 to suppress the vibration of the car 15, a control mechanism that changes the pressing force of the slider 20 according to changes in the control signal is provided. It is equipped with an electromagnetic mechanism 21 that changes the pressing force of the slider 20 by an electromagnetic force, and increases the pressing force of the slider 20 when the car is stopped to increase or decrease the load. It is equipped with a control mechanism that reduces the amount of floating and sinking of the car 15 that accompanies it, and when the car 15 is started, the pressing force of the slider is variable according to the change in the load, and the shock when the car 15 is started. A control mechanism for reducing Furthermore, the pressing force of the slider 20 is made variable according to the change in the vibration amount of the car 15 during traveling, and the control mechanism for reducing the vibration of the car 15 during traveling is provided. A control mechanism that gradually reduces the pressing force of the slider 20 after the starting force and the load are balanced to reduce the shock at the time of starting the car 15 is provided.

Then, in the vibration control method of the hydraulic elevator in which the pressing force of the slider 20 pressed by the guide rail 23 is controlled to control the vibration of the car 15, the slider is changed according to the change of the control signal.
The pressing force of the slider 20 is variable, and the pressing force of the slider 20 is variable by electromagnetic force.When the car is stopped, the pressing force of the slider is increased and the stacking load is increased or decreased. The amount of floating and sinking of the car shall be reduced.

Then, the pressing force of the slider 20 is made variable according to the change in the load of the car 15 to reduce the shock at the time of starting the car.

Furthermore, at the time of starting the car 15, there is also a method of gradually reducing the pressing force of the slider 20 after the starting force and the load are balanced to reduce the shock at the time of starting the car 15.

 Next, the operation of the control mechanism of this embodiment will be described.

The position detector 16 provided on the car 15 reacts with the position detector 24 mounted on the guide rail 23 to operate, and the electromagnetic mechanism 21 is operated through the control of the controller 9 to operate the guide rail. The pressing force of the slider 20 corresponding to 23 is increased or decreased.

A weighing device 17 provided on the car 15 is attached to the end of the rope 12 and is operated by an actuator 25 that interlocks with the bending amount of the spring 14, and the electromagnetic mechanism 21 is operated via the control of the control device 9. The pressing force of the slider 20 against the guide rail 23 is increased or decreased.

The vibrometer 18 provided in the car 15 detects the amount of vibration of the car 15 and operates the electromagnetic mechanism 21 through the control of the control device 9 to increase or decrease the pressure of the slider 20 against the guide rail 23. .

In the hydraulic elevator with the above configuration, when the car 15 is stopped at any landing 26 in response to a car call while traveling,
The position detectors 16 and 24 react with each other to send an electric signal to the control device 9 to operate the electromagnetic mechanism 21 by the action of the control device 9 to increase the pressing force of the slider 20 against the guide rail 23 to increase the guide rail. The frictional force between the slider 23 and the slider 20 is increased.

When starting from a stopped state, a car such as a door closing signal 15
The signal related to the starting of the vehicle and the load detected in the car 15 by the weighing device 17 and the actuator 25 are sent to the control device 9, and the guide rail 23 and the guide rail 23 are operated so that the control device 9 operates smoothly. The electromagnetic mechanism 21 is controlled to control the frictional force of the slider 20.

In addition, the vibration amount of the car 15 during traveling is measured by the vibrating meter 18 and the signal is sent to the control device 9, which is added to the pressing force of the compression spring 22 that has been appropriately compressed in advance to suppress the car 15. The pressing force to be calculated is calculated by the control device 9, and the electromagnetic mechanism 21 is controlled so as to reduce the vibration of the car 15 during traveling, and the pressing force of the guide rail 23 and the slider 20 is changed.

According to this embodiment, there is an effect that the pressing force of the slider against the guide rail when the car is stopped can be increased and the pressing force at the time of starting the car and during traveling can be changed as necessary.

〔The invention's effect〕

According to the present invention, by controlling the pressing force of the slider by the control signals of the position detector of the vibration control device of the hydraulic elevator, the scale device, the vibrometer, etc., the floating / sinking amount of the car at the time of landing, Shock at start and vibration during running are reduced,
There is an effect that the safety, ease of use and riding comfort of the hydraulic elevator are improved.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing an essential part of FIG. 15 …… Car, 19 …… Roller guide, 20 …… Slider, 21
…… Electromagnetic mechanism, 23 …… Guide rail.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takahisa Onose 1070 Ige, Katsuta-shi, Ibaraki Mito Plant, Hiritsu Manufacturing Co., Ltd. (56) Reference JP-A-61-226485 (JP, A) JP-A-48 -14047 (JP, A) JP-A-62-74897 (JP, A)

Claims (4)

(57) [Claims] 1. A vibration control device for a hydraulic elevator, comprising: a roller guide that moves up and down along with a car along a guide rail; and a slider that is pressed by the guide rail to suppress the vibration of the car. A control mechanism for changing the pressing force of the slider according to the change of the control signal, the control mechanism changing the pressing force of the slider according to the change of the load when the car is started, A vibration damping device for a hydraulic elevator, characterized in that it reduces shock at the time of starting the car. 2. When the car is started, a control mechanism is provided to gradually reduce the pressing force of the slider after the driving force and the load are balanced, thereby reducing the shock at the time of starting the car. The vibration damping device for the hydraulic elevator according to claim 1. 3. A vibration damping method for a hydraulic elevator for controlling vibration of a car by controlling a pressing force of a slider pressed against a guide rail, the pressing of the slider according to a change of a control signal. A vibration damping method for a hydraulic elevator, characterized in that pressure is changed and a control signal is changed according to a change in a load of a car to reduce a shock at the time of starting the car. 4. A vibration damping method for a hydraulic elevator for controlling vibration of a car by controlling pressing force of a slider pressed against a guide rail, wherein the pressing of the slider is controlled according to a change in a control signal. The pressure is changed to increase the pushing force of the slider when the car is stopped, and to reduce the floating / sinking amount of the car due to the increase / decrease of the loading load. Is gradually balanced, the pressing force of the slider is gradually changed to reduce the shock at the time of starting the car.