JPS5821062A - Automatic oiling device for chain - Google Patents

Abstract

PURPOSE:To realize automatic supply of the minimum necessary lubricant to a chain by providing a timing device which issues a starting command to a pump by means of a timer counting only working hours and also another timing device which issues a stoppage instruction. CONSTITUTION:A starting switch 1 is connected between controlled powder source buses B1, B2 through a main relay 2 in series. Also, a normally opened contact point 2a2 of the main relay 2 is provided in parallel with the starting switch 1 and connected in series between said buses B1, B2, a motor 4M of a timer 4 with timer hour T1 as the first timing device. Further, a series circuit of a normally closed contact point 5b2 of a timer 5 and an operating circuit 4c of a timer 4 is connected in parallel with a series circuit of the contact point 2a2 and the motor 4M. On the other hand, a normally opened contact point 4a of the timer 4 is connected in parallel with the motor 4M a timer 5 with a timer hour T2 acting as the second time adjusting device in series.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic chain lubrication system for escalators, etc., and more particularly to an automatic chain lubrication system that controls the lubrication time to achieve optimal lubrication.

As is well known, escalators etc. require a series of drive chains %:4IP! However, the wear of these drive chains is
In order to prevent this and maintain the initial performance ta, it is necessary to always perform optimal lubrication. Traditionally, the method of refueling has been to automatically refuel escalators once a day for a predetermined period of time when they are started, but recently escalators installed in station buildings, etc. Some are operated only during certain hours, and some are detected by a charging switch or the like and are automatically operated only when there are passengers on the escalator. In this case, since a plurality of startups and stops are repeated in a day, refueling is performed at the same time as each startup, resulting in excessive refueling and damage such as oil dripping.

Therefore, in order to solve the problem of the above-mentioned refueling method tailored to the start-up, a timer has recently been installed that counts the number of times the escalator is started and issues a start-up command to the pump after the number of escalators has elapsed. By installing a timer that issues a start command to the pump after a predetermined time has elapsed since the escalator was started, and setting @ at this time to about 2/3 of the escalator's daily operating time, A method of refueling only one tank has been proposed in 11J11.

For those that are operated regularly, the number of activations on day -1 and the driving time of -l are irregular (because the escalator is activated and the escalator is activated and a predetermined period of time has elapsed, the above-mentioned timer device issues a start command to the pump. In this case, refueling is performed several times a day, or conversely, if the escalator always stops before a predetermined period of time has elapsed, no refueling is performed at all.On the other hand, the operating time of an escalator on a day varies greatly depending on the application. Therefore, refueling once a day may result in excessive refueling.Also, for outdoor escalators, etc. that are subject to the effects of rain, it is necessary to increase the refueling interval to Wins.
If the operating time is long, it will be necessary to refuel more than once a day, which is not possible with the above-mentioned timer.

The present invention was made in order to solve the problems of the prior art as described above, and its purpose is to automatically supply the minimum necessary lubricant to the chain at all times to extend the life of the chain. An object of the present invention is to provide an automatic chain lubrication device which can provide improved stability and improve maintainability.

In order to achieve the above object, the automatic lubrication device of the present invention basically includes a chain driven by a drive machine.
A timer (I81) that issues a start command to the pump after a predetermined time has elapsed using a timer that has a function of counting only the operating time, and an I81 timer that issues a stop command to the pump.
ll2 timer device.
゛Also, in accordance with Jk4I, a timer with an electric reset device tjli that does not self-reset in the event of a power outage is used as the first time limit at to prevent the timer of the WIl from self-resetting in the event of a power outage. .

Hereinafter, the present invention will be explained based on an example of a solid block shown in the drawings.rm#4f
6. IJl Figures (a) (b) 41 This Rfl14C! This figure shows an example of an electric circuit configuration of an automatic chain lubrication device. In Fig. 181 (1), S is a drive machine for driving the chain of the escalator (not shown), and T4-1: main contact 1 of the relay, which will be described later from the power supply system (not shown).
Power is supplied via 11.

On the other hand, Ii Ill>) R: gir B yt , B
z High 1m busbar, l is an automatic return type key switch t as a starting switch or a photoelectric switch for passenger detection, and the control power supply bus B is directly connected to the main relay 1 via the main relay 1.
Connect between J and BJ. In addition, a normally open contact sag of the main relay 2 is provided in parallel with the starting switch 1, and a timer 4 having a timer 1 hour is provided as a timer for the main relay 2.
The motor 4M is connected in series to the control power source 41B7. B
Connect between J.

Furthermore, in parallel with the series-path between contact 1a2 and motor 4M,
i! Normally closed contact t;bl of timer l described above and timer 4
Connect the series circuit ms of the operating circuit 4C. On the other hand, 4m is the normally open contact of the above-mentioned timer 4, and T is the second timer.
A timer 5 having a one-hour timer is connected in parallel to the motor 4M in series. Further, in parallel with this timer 5, a series am between the normally closed contact jbJ of the timer 5 and a control relay σ for the oil supply pump is connected. Here, the control relay is configured to control a drive circuit (not shown) during its operation so that the oil supply pump supplies oil to the chain.

Next, when the start switch l is turned on in the #l configuration device, the main relay j% is energized and its main contact 2a1 is turned on.
closes, starts the drive machine S and starts the escalator,
Ru.

On the other hand, since the power is applied to the operation circuit 4C of the timer 4 and the clutch is connected, the power is applied to the motor 4M of the timer 4 by turning on the start switch 1%, thereby starting the timer 4. (In addition, main relay 2
When the escalator is stopped due to demagnetization, the current of the motor 4M of the timer 4 is cut off, so that one time count is interrupted. ) Then, only the operating time of the escalator is counted and the time TI set in advance in 1 timer 4 is counted.
When the timer 1 reaches 4, contact 4m of timer 1 closes and timer
At the same time, the control relay 6 for the refueling pump is activated to start refueling. Then, the preset refueling time T
, the contact 5b1°Bbl of the timer 5 opens, the control relay 6 returns to normal, and the fuel pump stops. On the other hand, the power to the operation circuit 4C of the timer 4 is cut off and the clutch is disengaged, so the operation of the timer 4 returns to the initial state and starts the timer cycle again.In this way, the chain driven by the drive machine 1 In a device that automatically supplies oil using a pump, only the operating time of the drive machine 1 is time-counted, and the operation is performed on the condition that the counting time has reached a preset operating time T, and its output is calculated as described above. a first timer 4 which outputs the output as a pump start command; and a second timer which outputs its output as a stop command for the pump on the condition that a preset refueling time T has been reached after the pump has started. Even if there is a difference in the automatic time conditions of one chain, it is possible to always refuel after a certain work time. Therefore, optimal lubrication without wasting oil can be achieved, which not only has an extremely effective effect on the lifespan of chains, etc., but also prevents over-lubrication and small oil-filling problems.

Next, regarding the second embodiment of the present invention, Il! I will clarify. In the electric circuit shown in Fig. 111 above, if the main electricity of an escalator or the like is cut off or there is a power outage, the power to the operation path 4C of the timer 4 is cut off, so the timer 4 is in the middle of counting time. However, the operation returns to its initial state, making it impossible to refuel escalators, etc. within a certain operating time. Therefore, in order to enable more reliable refueling during a fixed operating time, it is required that the operation of the timer 4 does not return to its initial state even if the power is cut off. The electric circuit configuration shown in Figure 2 (#) (b) takes this into account. Na*, I! In Figure 2 (a) and (b), the same parts as in Figure 111 are given the same reference numerals. In other words, the difference between Figure 2 and Figure li1 is that the timer r is operated as a 1!10 timer @jlyc. This is because an electric reset type is adopted in which reset is performed by applying a necessary voltage, and the excitation is controlled by the normally open contact 5a of the timer 5.

η) In circuit I, when start switch I is turned on, main relay 1 is energized and the main contact of main relay 2 is activated. ! “la;
182 is closed, the drive machine s6 is started, and the escalator is started. On the other hand, since the power is not turned on to the operation circuit yC of the timer r, the clutch is in a connected state, and the
By turning on the power, the power is turned on to the motor 2M of timer r, and time counting starts. This results in
As in the above embodiment, only the operating time of the escalator is counted, and when the time TI set in timer 1 is reached, contact 2m of timer r closes and timer l is activated. The control relay operates and starts refueling. Then, the preset refueling time T
, the contact ib of the timer 5 opens, the control relay 6 returns, and the fuel pump stops.

On the other hand, contact 1m closes and voltage is applied to the operation circuit 2C of timer r, disconnecting the clap.
The operation returns to the initial state and starts counting time again.

If the configuration is as follows, the mismatch in the circuit shown in Figure 1 when the escalator's power supply is cut off or there is a power outage, etc.
Since the timer r does not return to operation, it is completely eliminated, and more reliable refueling can be performed.

Incidentally, in the description of each of the above embodiments, a timer having an inner S circuit in which the operation circuit 7 motor electric circuit 11 & gIil 18 are separately connected is used for the timer 4 and timer r, but if a circuit having the same function is used, the above inner S circuit is used. The same effect can be performed without using a timer with .

The present invention can be similarly applied to things other than escalators.

In addition, the present invention can be implemented with various modifications without changing the gist thereof.

As explained above, according to the present invention, the minimum necessary amount of lubricating oil is automatically supplied to the chain at all times, thereby extending the life of the chain, stabilizing it, and improving maintainability. High chain automatic lubrication system can be provided.

[Brief explanation of the drawing]

Ir1 Diagram (1) (111) A diagram showing the basic electric circuit configuration of an embodiment of the automatic chain feeder according to the present invention,
Figure 2 (Xun (b) is an electric circuit configuration diagram showing another embodiment of the present invention. □ 1... Starting switch? % 2... Main relay % 1...
Drive machine, 4... Timer, 5-. Timer% 6.-
Control relay, r...timer. l@ゎ *56・2・-213 JPO Commissioner Shima 1) Haruki Tono1, Indication of the case Patent Application No. 118187/1987 1 2. Name of the invention Automatic chain oiling device 3, Amendment person case and Related patent applicant (307) Tokyo Shibaura Electric Co., Ltd. 4, agent
(st" 1 person) 6. Specification subject to amendment 7, Contents of amendment (1) In the 18th line of page 2 of specification iF, it says "... damage such as dripping...".・Defects such as sauce...
・Correct it as follows. (2) In the specification, page 3, line 5, page 1li, line 1, and page 7, line 1182, it says "...escalator...""...escalator..." Correct it as follows. (3) In the 14th line of page 5 of the specification, the phrase ``through...'' should be corrected to read ``through... in series.'' (4) From line 15 to line 16 on page 6 of the specification and from line 12 to line 13 on page 10, it says "...escalator...". Correct it as "Escalator...". (5) ζ, page 9, line 9 of the specification: ``Necessary for...'' should be corrected to read ``Necessary for...''. (6) On page 9, line 12 of the specification, “...
It says, "Start, switch...". Correct it to read, "...Place, start switch...".

Claims (1)

[Claims] (1) In systems that automatically lubricate a chain driven by a drive machine using a pump, only the operating time of the drive machine is counted, and the wrinkle count time indicates when the preset operating time has been reached. A timer device *i that operates according to the conditions and outputs its output as a start command for the pump, and a timer device that outputs a command to stop the pump on the condition that the pump has worked overtime and has reached a preset refueling time. 1120 timer to output as J.
kq # Automatic lubrication system for moldy chains (2) 1110
The automatic chain lubrication device according to claim 1, wherein the time device is configured to not self-reset in the event of a power outage.