JP4068027B2 - Automatic lubrication device for man conveyor - Google Patents

Description

  The present invention relates to an automatic oil supply device for a man conveyor that can supply a highly viscous lubricating oil capable of reducing the frequency of oil supply to a chain portion.

  In an automatic oil supply device that supplies lubricating oil to a chain portion of a man conveyor at regular intervals, conventionally, a low-viscosity lubricating oil has been used as the lubricating oil. When this low-viscosity lubricating oil is used, the lubricating oil tends to drop from the chain, which is the lubricating portion, and frequent oil supply is required. For this reason, the lubricating oil is automatically supplied when the operation time of the man conveyor has passed about 48 hours. As a countermeasure, it has been considered to use a highly viscous lubricating oil that can reduce the frequency of refueling to realize a long-term refueling interval that automatically refuels after about 500 hours of operation time, for example. By the way, as shown in FIG. 4, when the oil viscosity is about 60 ° C., the high-viscosity engine oil (10W40) has substantially the same viscosity as the low-viscosity bearing oil (VG10) at a temperature around 10 ° C. It is known that there are characteristics. In addition, as a conventional technique, a constant amount of lubricating oil is always supplied to the drive unit regardless of a change in the viscosity of the lubricating oil by adjusting and changing the lubricating oil supply time according to the temperature detected by the temperature detecting means. However, this was not what used the high viscosity lubricating oil (for example, refer patent document 1).

JP-A-11-180668

  When conventional low-viscosity lubricating oil is used, there is a problem that the lubricating oil tends to fall from the chain that is the lubricating portion, and frequent oil supply is required. In addition, when a highly viscous lubricating oil is used, the conventional oiling device has a problem that the pump pressure is insufficient and a sufficient amount of lubricating oil cannot be supplied. Also, even when the temperature is high, there is a problem that if the temperature is low, the oil temperature becomes low, the viscosity becomes high, the piping becomes clogged, and a sufficient amount of lubricating oil cannot be supplied. Measures such as increasing the pressure of the pump were necessary.

  The present invention has been made to solve the above-described problems. The purpose of this invention is to warm up the high-viscosity lubricating oil with the heat of the drive motor of the man conveyor before refueling. An automatic refueling device for a man conveyor that is to be prevented is provided.

An automatic refueling device for a man conveyor according to the present invention automatically supplies lubricating oil to a chain portion of the man conveyor at regular intervals, and includes a drive motor for driving the man conveyor and side surfaces excluding the upper surface of the drive motor. mounted so as to be positioned, and the lubricating oil tank lubricant is accommodated in a high viscosity, is connected to the lubricating oil tank, oil attached to the heat conducting manner so as to be positioned on the side surface except for the upper surface of the drive motor Man conveyor operation starts with piping, an oil supply pump that supplies high-viscosity lubricating oil in the oil tank to the chain through the oil supply piping, and an oiling timer that controls the start and stop of operation of the oil pump. and, when the integrated operating time since the last refueling have elapsed hundreds of hours, refueling timer drive motor a predetermined time has elapsed from the start of activation, lubricants motor Click and warmed by the high viscosity lubricating oil heating of the drive motor of the feeding line, starts the fuel supply by the fuel supply pump When a viscosity of the lubricating oil comparable low viscosity, estimated time until the step chain is at least one round When it has elapsed, the oil supply by the oil supply pump is stopped.

The present invention relates to a drive motor for driving a man conveyor, a lubricating oil tank which is attached so as to be positioned on a side surface excluding the upper surface of the driving motor , and which contains a high viscosity lubricating oil, and is connected to the lubricating oil tank. , An oil supply pipe that is mounted in heat transfer so as to be located on the side surface excluding the upper surface of the drive motor, an oil supply pump that supplies high-viscosity lubricating oil in the lubricating oil tank to the chain portion through the oil supply pipe, and this oil supply pump The refueling timer that controls the start and stop of operation of the car conveyor starts, and if the accumulated operation time from the previous refueling has exceeded several hundred hours, the refueling timer starts the start of the drive motor and the predetermined time has elapsed since the lubricating oil of high viscosity of the lubricating oil tank and the oil supply pipe is warmed by heat generation of the drive motor, the oil supply port When a viscosity of the lubricating oil comparable low viscosity When the planned time until the step chain has completed at least one cycle has elapsed, the lubrication pump stops lubrication, so the high-viscosity lubricant is warmed by the heat of the man conveyor drive motor before refueling. By doing so, clogging of the piping can be prevented. Therefore, a long-term refueling interval of about 500 hours can be realized from the conventional refueling interval of about 48 hours. Further, since the lubricating oil tank and the oil supply pipe are not provided on the upper surface of the drive motor, but particularly on the side surface, they are not stepped on by workers during maintenance and inspection, and the life of the automatic oil supply device can be extended.

Embodiment 1 FIG.
1 is a system configuration diagram showing an automatic refueling device for a man conveyor according to Embodiment 1 of the present invention, FIG. 2 is a partially enlarged perspective view showing an automatic refueling device for a man conveyor according to Embodiment 1 of the present invention, and FIG. It is a flowchart explaining operation | movement of the automatic oil supply apparatus of the man conveyor in Embodiment 1 of this invention.
In the figure, the man conveyor moves between the truss 1, the inner plate 2 provided on both sides of the truss 1, the moving handrail 3 moving along the guide rail on the inner plate, and the inner plate 2. A step chain (not shown), a step chain 4 provided in the truss 1 and connecting a plurality of steps, a chain sprocket 5 for driving the step chain, a drive motor 6 for driving the chain sprocket, and the like. Has been. When the operation time of the man conveyor has passed about 500 hours, high-viscosity lubricating oil is automatically supplied to the step chain 4 and the like wound around the chain sprocket 5 by an automatic oil supply device. That is, the automatic oiling apparatus is attached by the attachment band 7 so as to be positioned on the side surface excluding the upper surface of the drive motor 6, and is connected to the lubricating oil tank 8 in which high-viscosity lubricating oil is accommodated. The oil supply pipe 9 is attached in a serpentine manner in a heat-conducting manner so as to be located on the side surface except the upper surface of 6, and is provided at the tip of this oil supply pipe to supply high-viscosity lubricating oil to the step chain 4, the drive chain, etc. An oil supply nozzle 11 for supplying high-viscosity lubricating oil in the lubricating oil tank 8 through an oil supply pipe 9, and an oil supply timer 12 for controlling the start and stop of the operation of the oil supply pump. . The refueling timer 12 is operated for a predetermined time, for example, 30 to 60 minutes after the start of the drive motor 6 of the man conveyor, and starts refueling by the refueling pump 11 after the drive motor 6 has a certain amount of heat. The oil supply pump 11 is stopped after a predetermined time until the step chain 4 makes at least one round, for example, about 70 seconds. Also, the high-viscosity lubricating oil in the lubricating oil tank 8 and the oil supply pipe 9 is warmed by the heat generated by the drive motor 6, so that just before the refueling, as shown in FIG. It becomes possible to make it the viscosity of. Also, the reason why the lubricating oil tank 8 and the oil supply pipe 9 are not provided on the upper surface of the drive motor 6 but particularly on the side surface is to avoid the upper surface that is easily stepped on by workers during maintenance and inspection, thereby increasing the long life of the automatic oil supply device. It is a plan to make it.

Next, operation | movement of the automatic oil supply apparatus of a man conveyor is demonstrated.
First, when the operation of the man conveyor is started, in step S1, it is determined as an accumulated time whether or not about 500 hours, which is a constant operation time, has elapsed since the previous refueling. If the accumulated operation time from the previous refueling has passed 500 hours, it is determined whether or not a predetermined time, for example, 30 to 60 minutes has elapsed since the man conveyor was started in step S2. If 30 to 60 minutes have passed since the start of the man conveyor, the drive motor 6 has a certain amount of heat, and the high-viscosity lubricating oil in the lubricating oil tank 8 and the oil supply pipe 9 is absorbed by the driving motor 6. It is warmed by heat generation and has the same viscosity as a conventional low-viscosity lubricating oil. If it does so, operation of oil supply pump 11 will be started by Step S3, and oil supply will be started. Next, it is determined whether or not refueling is continued for about 70 seconds, for example, from the start of refueling in step S4 until the step chain 4 makes a complete circuit. If refueling is continued for 70 seconds, it is determined that high-viscosity lubricating oil has spread all over the longest step chain 4, and the operation of the oil pump 11 is stopped in step S5 to stop refueling.

  In the above description of the first embodiment, a case where high-viscosity lubricating oil is supplied to the step chain 4 wound around the chain sprocket 5 is described as an example. Needless to say, high-viscosity lubricating oil is also automatically supplied to the drive chain and the moving handrail drive chain that connect 6 to the chain sprocket 5.

It is a schematic side view which shows the whole structure of the man conveyor which uses the automatic oiling apparatus in Embodiment 1 of this invention. It is a partial expansion perspective view which shows the automatic oil supply apparatus of the man conveyor in Embodiment 1 of this invention. It is a flowchart explaining operation | movement of the automatic oil supply apparatus of the man conveyor in Embodiment 1 of this invention. It is a characteristic view which shows the relationship between the oil viscosity of lubricating oil, and temperature.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Truss 2 Inner board 3 Moving handrail 4 Step chain 5 Chain sprocket 6 Drive motor 7 Mounting band 8 Lubricating oil tank 9 Oil supply piping 10 Oil supply nozzle 11 Oil supply pump 12 Oil supply timer

Claims (4)

In the automatic lubrication device for the man conveyor that automatically lubricates the chain of the man conveyor at regular intervals, it is attached to the drive motor that drives the man conveyor and the side surfaces other than the top surface of the drive motor. A lubricating oil tank containing high-viscosity lubricating oil; a lubricating oil pipe connected to the lubricating oil tank and mounted on the side surface excluding the upper surface of the drive motor ; and in the lubricating oil tank A high-viscosity lubricating oil is supplied to the chain through the oil supply pipe and an oiling timer that controls the start and stop of operation of the oil pump . Once integrated operating time has not elapsed for hundreds of hours, the oil supply timer drive motor a predetermined time has elapsed from the start of activation, the lubricating oil tank and the oil supply pipe Lubricating oil viscosity warmed by heat generation of the drive motor, starts the fuel supply by the fuel supply pump When a viscosity of the lubricating oil comparable low viscosity, lubrication by oil pump after the lapse scheduled time to the step chain is at least one round An automatic refueling device for a man conveyor characterized by stopping the operation. In the automatic lubrication device for the man conveyor that automatically lubricates the chain of the man conveyor at regular intervals, it is attached to the drive motor that drives the man conveyor and the side surfaces other than the top surface of the drive motor. A lubricating oil tank containing high-viscosity lubricating oil, a lubricating oil pipe connected to the lubricating oil tank and mounted on the side surface excluding the top surface of the drive motor , and a An oil supply nozzle provided at the tip for supplying high-viscosity lubricating oil to the chain part, an oil pump for supplying high-viscosity lubricating oil in the lubricating oil tank to the chain part through the oil supply piping, and starting the operation of the oil pump and a refueling timer to control the operation stop, and start the operation of the passenger conveyor, when the accumulated operation time from the previous refueling has passed hundreds of hours, the oil supply data Mer, once the drive motor has a predetermined time has elapsed from the start of activation, the lubricating oil of high viscosity of the lubricating oil tank and the oil supply pipe is warmed by heat generation of the drive motor, a viscosity of the lubricating oil comparable low viscosity oil An automatic refueling device for a man conveyor which starts refueling by a pump and stops refueling by a refueling pump when a scheduled time until at least one round of the step chain elapses.   3. The automatic lubricating device for a man conveyor according to claim 1, wherein the lubricating oil tank is attached with an attachment band so as to be positioned on a side surface excluding the upper surface of the drive motor. The automatic oil supply device for a man conveyor according to any one of claims 1 to 3, wherein the oil supply pipe is attached in a serpentine manner so as to be located on a side surface excluding the upper surface of the drive motor.

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