JP2007016815A - Oiling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oiling device in which the number of components can be reduced, and control for oiling is simple. <P>SOLUTION: A controller 10 contains an interval timer 7 counting an elapse of days from the last oiling day, and outputting a count signal, a noon timer 8 operating in a predetermined time containing noon and time near noon every day and outputting an actuating signal, and an operation part 9 having a second discriminating means 9b for discriminating whether the actuating signal of the noon timer 8 is input after discriminated by a first discriminating means 9a that the count signal of the interval timer 7 is equivalent to the preset predetermined period. When discriminated by the second discriminating means 9b that the actuating signal of the noon timer 8 is input, the controller 10 outputs the drive signal to drive a pump 2 to discharge lubricating oil. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an oil supply device that supplies lubricating oil in an oil tank to a predetermined oil supply location via a nozzle.

  In general, the viscosity of the lubricating oil used for supplying oil to a drive part of a machine part tends to increase as the temperature decreases, and conversely decreases as the temperature increases. For this reason. When the lubricating oil passes through the nozzle of the oiling device, a situation occurs in which the amount of oiling changes due to the change in viscosity. In particular, when the temperature is low, such as in winter, the desired amount of oil cannot be ensured, and rust is generated in the drive parts of the machine parts that are to be refueled. There is a risk of damage to parts and the like.

  Therefore, conventionally, an oil tank in which lubricating oil is stored, a pump that discharges the lubricating oil stored in the oil tank, and a fixed that supplies the lubricating oil discharged from the pump to a predetermined oil supply location. Refrigerating time data for each temperature stored in advance in the ROM based on the temperature detected by the temperature detecting means, which is provided with a diaphragm, that is, a nozzle, provided with temperature detecting means for detecting the ambient temperature. The technique provided with the control circuit which selects applicable oil supply time with reference to is proposed (refer patent document 1).

In addition, conventionally, a detector for detecting the temperature in the oil tank and a timer for changing the time limit via the detector are provided, and the operation time of the oil pump is automatically controlled via the timer to supply a fixed amount of oil. Technology has also been proposed (see Patent Document 2).
JP-A-11-180668 Japanese Utility Model Publication No. 47-12687

  All of the above-mentioned conventional techniques require a temperature detection means, so the number of components increases, and the oil supply time is controlled according to the temperature. However, there was a problem that the production cost became high.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide an oil supply apparatus that can reduce the number of components and that can be easily controlled for oil supply.

  In order to achieve this object, the present invention provides an oil tank in which lubricating oil is stored, a pump that discharges the lubricating oil stored in the oil tank, and a lubricating oil discharged from the pump at a predetermined oil supply location. In an oil supply device comprising a nozzle for oil supply and a control device for outputting a drive signal for driving the pump, the control device counts the number of days elapsed from the previous oil supply date and outputs a count signal. And a noon timer that operates within a predetermined time including a time around noon and around noon every day and outputs an operation signal, and the count signal of the interval timer corresponds to a preset predetermined period. A first discriminating unit for discriminating whether the count signal is equal to the predetermined period or not by the first discriminating unit. And a second discriminating unit that discriminates whether or not the operation signal of the noon timer is input, and when the second determination unit determines that the operation signal of the noon timer is input, A drive signal for driving the pump is output.

  The present invention configured in this manner supplies oil from a pump to a predetermined oil supply location via a nozzle within a predetermined time including a time around noon and around noon where the viscosity of the lubricating oil tends to increase empirically. Stabilization of the amount of lubricating oil passing therethrough can be realized, and satisfactory oil supply can be performed. Even in the winter when the environmental temperature tends to be low, the temperature tends to be relatively high within a predetermined time including the time around noon and around noon, so the viscosity of the lubricating oil during refueling is kept high to some extent. It is also suitable for refueling in such winter.

  In addition, since the temperature detecting means is not required, the number of components can be reduced, and the control device drives the pump in accordance with two signals of an interval timer count signal and a noon timer operation signal. Since a control signal is output, control for refueling is simple.

  The present invention empirically supplies oil automatically within a predetermined time including a time around noon and around noon where the viscosity of the lubricating oil can be maintained to be high to some extent, so that a stable amount of lubricating oil can be provided at a predetermined oil supply location. In addition, the number of components can be reduced because conventional temperature detection means is not required, and control for refueling is simple. Cost can be reduced.

  Hereinafter, the best mode for carrying out an oil supply apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an embodiment of a fueling device according to the present invention. As shown in FIG. 1, the present embodiment includes an oil supply unit 3 including an oil tank 1 in which lubricating oil is stored and a pump 2 that discharges the lubricating oil stored in the oil tank 1. Further, a nozzle 4 for supplying lubricating oil discharged from the pump 2 to a predetermined oil supply location such as a drive part of a machine part, for example, a chain of a passenger conveyor, is provided, and the nozzle 4 and the pump 2 are connected by a pipe 5. is there.

  Moreover, the control apparatus 10 which outputs the drive signal which drives the pump 2, and the power supply 6 which drives this control apparatus 10 are provided.

  The control device 10 described above counts the number of days that have elapsed since the previous refueling date, operates within a predetermined time including an interval timer 7 that outputs a count signal, and a time around noon and around noon, and outputs an operation signal. And a noon timer 8 that performs. Further, the first determination means 9a for determining whether the count signal of the interval timer 7 corresponds to a predetermined period set in advance, that is, the period until the next refueling date, and the count signal is determined by the first determination means 9a. After determining that it corresponds to the above-mentioned predetermined period, it includes a calculation unit 9 having second determination means 9b for determining whether or not an operation signal of the noon timer 8 is input. As will be described later, the control device 10 outputs a drive signal for driving the pump 2 when it is determined by the second determination means 9b of the calculation unit 9 that the operation signal of the noon timer 8 has been input.

  FIG. 2 shows an example of the temperature change of one day in winter. FIG. 2 shows the relationship between time and temperature in the machine room of a passenger conveyor installed at a predetermined location. FIG. 3 shows a plurality of measurement days including winter. It is a figure which shows the relationship with the temperature of noon in the machine room of the passenger conveyor installed in the predetermined place.

  As shown in FIG. 2, for example, in a machine room of a passenger conveyor installed at a predetermined location, the temperature is high at a predetermined time T including noon of one day, that is, a time at 12:00 and around 12:00. Become. Moreover, as shown in FIG. 3, the present inventors have confirmed that the midday temperature in the machine room of the above-mentioned passenger conveyor is 5 ° C. or higher even in winter. That is, within the predetermined time T including the time around noon and around noon, the temperature in the machine room described above is relatively high in one day, and the supply of the lubricating oil is not so hindered even in winter. . That is, it has been confirmed by the present inventors that the viscosity of the supplied lubricating oil can be kept high to some extent.

  FIG. 4 is a flowchart showing a processing procedure in the control device provided in the present embodiment. In the present embodiment, for example, oil is supplied to a chain of a passenger conveyor installed at a predetermined place in a machine room. A period from the day when the refueling is performed to the chain of the passenger conveyor to the day when the next refueling is performed is set in advance as a predetermined period in, for example, the first determination unit 9a of the calculation unit 9 of the control device 10.

  For example, when the power supply 6 is turned on after refueling the passenger conveyor chain, the present embodiment starts operation. That is, as shown in step S1 of FIG. 4, the interval timer 7 of the control device 10 operates. The interval timer 7 sequentially counts the number of days that have elapsed since the day of refueling as described above, and outputs a count signal to the calculation unit 9.

  Accordingly, as shown in step S2, the first determination unit 9a of the calculation unit 9 determines whether or not the input count signal corresponds to a predetermined period set in advance. When the time corresponding to the predetermined period has not been reached, the process returns to step S1.

  After determining in step S2 that the input count signal has reached the predetermined period, whether the operation signal of the noon timer 8 has been input by the second determination means 9b of the calculation unit 9 as shown in step S3. Is determined.

  Here, when the predetermined time including noon and the time around noon is not reached, the operation signal from the noon timer 8 is not input to the calculation unit 9. When a predetermined time including noon and a time around noon is reached, an operation signal from the noon timer 8 is input to the calculation unit 9, and the process proceeds to step S4.

  In step S4, a drive signal is output from the control device 10 to the pump 2 shown in FIG. 1 for a preset time, for example. Accordingly, the pump 2 is driven for the set time, and the lubricating oil in the oil tank 1 is guided from the pump 2 through the pipe 5 to the nozzle 4 and supplied to the corresponding passenger conveyor chain through the nozzle 4. The When the set time described above has elapsed, the output of the drive signal from the control device 10 to the pump 2 stops.

  According to the present embodiment configured as described above, when it is time to refuel, as illustrated in FIGS. 2 and 3 and the like, a predetermined time including noon and a time around noon where the viscosity of the lubricating oil can be kept high to some extent. In a time period, the predetermined oil supply location is supplied from the pump 2 through the nozzle 4, so that the amount of lubricating oil passing through the nozzle 4 can be stabilized and good oil supply can be performed. Even in the winter when the environmental temperature tends to be low, the temperature tends to be relatively high within a day within a predetermined time including the time around noon and around noon. The viscosity of this lubricating oil can be kept high to some extent, and it is also suitable for such oil supply in winter.

  In addition, since the temperature detecting means is not required, the number of components can be reduced, and the control device 10 has two count signals of an interval timer 7 incorporated in the software and an operation signal of the noon timer 8. Since a control signal for driving the pump 2 is output according to the signal, the control for refueling is simple.

  In the above embodiment, the chain of the passenger conveyor is cited as an example of the drive unit of the machined parts to be refueled, but the refueling target part of the present invention is not limited to the chain of the passenger conveyor. Various parts can be lubricated.

It is a block diagram which shows the structure of one Embodiment of the oil supply apparatus which concerns on this invention. It was mentioned as an example of the temperature change of the day in winter, and is a figure which shows the relationship between the time and temperature in the machine room of the passenger conveyor installed in the predetermined place. It is a figure which shows the relationship between the several noon day including winter and the temperature of the noon in the machine room of the passenger conveyor installed in the predetermined place. It is a flowchart which shows the process sequence in the control apparatus with which this embodiment is equipped.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Oil tank 2 Pump 3 Oil supply part 4 Nozzle 5 Piping 6 Power supply 7 Interval timer 8 Noon timer 9 Calculation part 9a 1st discrimination | determination means 9b 2nd discrimination | determination means 10 Control apparatus

Claims (1)

Oil tank for storing lubricating oil, pump for discharging the lubricating oil stored in the oil tank, nozzle for supplying lubricating oil discharged from the pump to a predetermined oil supply location, and driving for driving the pump In a fueling device including a control device that outputs a signal,
The control device is
An interval timer that counts the number of days that have elapsed since the previous refueling date and outputs a count signal;
And a noon timer that operates within a predetermined time including a time around noon and around noon and outputs an operation signal,
First determining means for determining whether the count signal of the interval timer corresponds to a predetermined period set in advance, and determining that the count signal corresponds to the predetermined period by the first determining means And a second determining means for determining whether or not the operation signal of the noon timer has been input,
An oil supply apparatus that outputs a drive signal for driving the pump when the second determination means determines that the operation signal of the noon timer is input.

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