JPH01247377A - Device for controlling hydraulic elevator - Google Patents

Abstract

PURPOSE:To reduce the number of floor correcting operations by providing a first floor correction detecting device for detecting the sinkage of a cage and a second floor correction detecting device which becomes effective by the OR condition of an output means which is operated at the time of opening a door or during the travel ing of a cage, while differentiating their detecting positions. CONSTITUTION:If a cage sinks while on standby for some reason or other and as an UP side floor correction detecting switch 3 is separated from an operating body, a contact 3a is closed whereas, since a contact 12 is opened at the time of closed door, an UP side floor correcting operation command relay 6 is not energized. In this condition, if a door open command is outputted according to a hall call on the same floor, the contact 12 is closed immediately after the door open command, the UP side floor correcting operation command relay 6 is energized, and an elevator starts floor correction, correcting the sinkage of a cage before the full opening of the door. Next, if the cage further sinks while on standby with a standby-time UP side floor correction detecting switch 11 being separated from the operating body, a contact 11a is closed and the relay 6 is energized irrespective of door opening/closing to immediately start floor correction. Thereby, the number of floor correcting operations can be reduced.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a control device for a hydraulic elevator.

(Prior art) In hydraulic elevators, the floor of the car sinks due to oil leakage from jacks, etc., and volume contraction due to a drop in the temperature of the hydraulic oil, causing a shift in the stopping position of the car. . Therefore, an operation was required to correct the deviation. However, one method of correction position is originally due to the expansion of oil due to passengers getting on and off.
Even if the car floor rises or sinks due to contraction, it is generally kept as small as possible in order to improve the accuracy of the stopping position. For this reason, floor correction operations are frequently performed even when the elevator is on standby, causing wasteful operation and shortening the life of the equipment.

FIG. 3 is a block diagram of a conventional floor correction detection device, and FIG. 4 is a floor correction operation command circuit diagram.

First, in the configuration of Figures 3 and 4, 1 indicates a basket,
2 is a DOWN side floor correction detection Sv that detects the floating of the car, and 3 is an UP side floor correction detection Sv that detects the sinking of the car. 4 is a power supply for the floor correction command circuit, 2a is the b contact of the 00wN side floor correction detection SW, and 3a is the b contact of the UP side floor correction detection 5IIl.

7 is a contact b of a normal operation relay (not shown) which is energized until the elevator starts decelerating as it moves toward another floor; 8a is a contact b of a UP operation relay which is energized during upward travel; 9a is the DO excited during descending travel (not shown)
This is the b contact of the WN operation relay.

5 is a DOWN side floor correction operation command relay, 58 is its b contact, and 6 is an UP side floor correction operation command relay, 68 is its b contact, forming an interlock circuit.

Next, to explain the above operation, first, when the car floats up, the DOWN side floor correction detection S%i2
When the car is detached from the actuating body, the b contact 2a is closed. Conversely, if the car sinks, the UP side floor correction detection SW3 is disengaged from the 5ll1 actuating body, and the b contact 3a is closed.

Here, the DOWN side floor supplementary side floor correction detection S-2 or the UP side floor correction detection SW3 is set at approximately ±15 m to 25 m from the floor level so that passengers can get on and off smoothly without feeling the difference in level.
It is installed so that it operates at around +.

Describing the case of the car sinking below, if the car sinks due to some reason during standby, the UP side floor correction detection SW
3 is removed from the actuating body, its contact 3a closes, and the contact 7 of the normal operation relay, which is closed during standby from the power supply 4 in FIG. B contact 5 of correction operation command relay 5
The up-side floor correction operation command relay 6 is energized via a.

Next, when the UP side floor correction operation command relay 6 is energized, in the operation circuit of FIG. Then, operate the pump, LIP valve, etc. until the up side floor correction detection SW3 comes into contact with the operating body.

Performing floor correction.

Here, reference numeral 10 denotes an UP operation command device which, when called during normal operation and responds, directly connects the UP operation relay 8 to the power supply 4 according to the operation command, and during floor correction, the a contact 6b of the UP side floor correction operation command relay 6. The UP operation relay 8 is connected to the power supply via the UP operation relay 8.

(Problem to be solved by the invention) In the hydraulic elevator obtained from the above, since the floor correction position is in a narrow range with respect to the floor level, the cage may be damaged due to oil contraction due to a drop in oil temperature or oil leakage. The amount of settlement increases with time, and the car floor must be re-bedded in a short period of time.

The purpose of the present invention is to provide a hydraulic elevator that saves energy by reducing the number of re-floor corrections and slows down the deterioration of equipment by detecting the floor correction position while a passenger is getting on and off and the floor alignment position while waiting. The purpose of this invention is to provide a control device for

[Structure of the invention]

(Means for Solving the Problems) The present invention includes a first floor correction detection device that detects sinking of a car, and an output means that operates when an elevator door is opened or when the car is running. A second floor correction detection device is provided which is made effective according to these OR conditions, and a car floor correction operation means is provided in which the detection positions of the two floor correction detection devices are arranged at different positions. .

(Function) During standby, the detection position of the first floor correction detection device is far below the floor level, and while passengers are getting on and off, the detection position of the second floor correction detection device is below the floor level. By setting it to the lower side, while on standby,
Since the second floor correction detection device is ineffective against car subsidence that occurs in a short period of time, and does not perform floor correction,
It is possible to reduce floor correction operations, and when operating in response to a call from another floor, it is possible to start traveling from a sunken position, making it possible to reduce wasteful operation.

(Example) Embodiments based on the present invention will be described with reference to the drawings.

FIG. 2 is a block diagram of the floor correction device, and FIG. 1 is a floor correction operation command circuit diagram. 1 indicates a car, and 2 is a DOWN side floor correction detection SW that detects the floating of the car when passengers get on and off.
3 is an UP side floor correction detection S3 that detects the sinking of the car, and 11 is a standby UP side floor correction detection SW that detects the sinking of the car during standby.

Next, 4 is a power supply for the control circuit, 7 is a b contact of a normal operation relay that is energized until the car travels to another floor (not shown) and starts decelerating, and 3a is the UP side floor correction detection SW.
In addition, 9a is the b contact of the DoldN operation relay (not shown) which is energized during DOWN running, and 5a is the b contact of the DOWN side floor correction operation command relay 5 in Fig. 4, which corrects the floating of the floor. Among the contacts, 6 is an up side floor correction operation command relay. In addition, lla is the standby UP side floor correction detection S
This is the b contact of W.

Next, 12 is a contact B of a door closing relay that is released when the door of a landing or a car (not shown) is opened, and 13 is a contact A of a driving relay that is energized while the car (not shown) is running UP or DOWN. .

Next, the operation will be explained based on the above configuration.

First, when the car is at a normal stop, the UP side floor correction detection SW3
and the standby floor correction detection 5VII are in contact with the operating body of the hoistway, and each contact 3a and lla is open,
This 4UP side floor correction operation command relay 6 is never energized. Next, if the car sinks during standby for some reason and the LIP side floor correction detection Sw3 moves away from the operating body, this contact 3a will close, but if the door is closed, the b contact 12 of the door closing relay will close. If the circuit is opened and there is no hall call,
If the A contact of the own floor door opening relay is connected, and the car is stopped and the A contact of the operation relay is open, i.e., in a standby state, any of these contacts will receive the vP side floor correction operation command. Since relay 6 is disconnected from electric g4, there is no actual floor correction.

Next, in this state, when a hall call from another floor occurs, the b contact 7 of the normal operation relay opens, and υP
Disconnect the side floor correction operation command circuit from the power supply and go directly to the hall call floor.

Next, when a hall call for the own floor occurs in the above state, if the car has already stopped in a non-directional manner, a door opening command is immediately output (not shown) and the door opens, but immediately after this door is opened, , the b contact 12 of the door close relay closes. For this reason, the power supply 4 is connected to the b contact 3a of the UP side floor correction detection SW3.
The up-side floor correction operation command relay 6 is energized via the up-side floor correction operation command relay 6. Therefore, the elevator immediately starts floor correction, and when the doors are fully opened and passengers are about to get on and off, the sinking of the car floor can be corrected, and boarding and alighting will not be hindered.

Next, when the car sinks further during standby and the standby UP side floor correction detection 5llll moves away from the operating body, its b contact 11a closes, and the UP side floor correction operation command relay 6 closes regardless of whether the door is opened or closed. is excited and floor correction starts immediately.

Next, when correction starts in this state, the contact 6b of the UP side floor correction operation command relay 6 energizes the UP operation relay 8 shown in FIG. By closing the a contact point 13, floor correction is performed until the UP side floor correction detection SW3 comes into contact with the operating body.

Here, 98 is the B contact of the DOWN operation relay (not shown), and 5a is the B contact of the DOWN side floor correction operation command relay 5 shown in FIG. 4, which has an UP and DOWN interlock circuit configuration. .

In the present invention, a case has been described in which the floor correction operation is performed during the door opening operation, but although not particularly shown, it is also possible to give priority to the floor correction operation and open the door after the floor correction operation is completed. I can do it.

〔Effect of the invention〕

As described above, if the present invention is used and the mounting positions of the first UP-side floor correction detection SW and the second UP-side floor correction detection SW are set appropriately, even if the car sinks for some reason while it is on standby, As a result, the number of floor correction operations can be reduced, and wasteful operation due to this can also be reduced, resulting in an energy-saving effect.

[Brief explanation of the drawing]

FIG. 1 is a floor correction operation command circuit diagram according to an embodiment of the present invention;
Fig. 2 is a block diagram of a floor correction detection device based on an embodiment of the present invention, Fig. 3 is a block diagram of a conventional floor correction detection device, Fig. 4 is a conventional floor correction operation command circuit diagram, and Fig. 5 is a block diagram of a conventional floor correction detection device. FIG. 2 is an operating circuit diagram shared between the conventional system and the present invention. 3...up side floor correction detection SV. 11... Up side floor correction detection SW during standby, 6... UP
Side floor correction operation command relay. Agent Patent Attorney Yudo Ken Chika Ken Daikomaru Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] In a hydraulic elevator that operates by sending and discharging pressure oil to a hydraulic cylinder, there is provided a first floor correction detection device for correcting car sinking due to oil leakage, etc., and when the door is open or the car is running. 1. A control device for a hydraulic elevator, characterized in that the control device for a hydraulic elevator is designed to save energy in floor correction operation, comprising a second floor correction detection device which has an operating output means and is made effective according to these OR conditions.