JPH05256395A - Lubricating device - Google Patents

Abstract

PURPOSE:To provide a lubricating device which consumes less power and is capable of proper lubrication even when an operation shorter than lubricating interval is made repeatedly. CONSTITUTION:A timer means 21 counts lubrication interval only while a main machine 1 is operated. A first control means 22 turns on a switch 11 to feed oil after counting of lubrication interval is completed while the main machine 1 is operated. A count means 24 counts times of the off-condition of the main machine 1 while the lubrication interval is counted, and stores a count value in an non-volatile memory 13. The count means 24 clears the count value when the lubricating action is started. A second control means 23 outputs a signal to turn on the switch 11 to make lubrication when the main machine is operated after the count value is judged to be 3. Even when a short interval operation is made repeatedly, oil film shortage on areas to be lubricated of the main machine can be prevented and also power consumption can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating device for supplying lubricating oil to main machines such as construction machines, vehicles and industrial machines.

[0002]

2. Description of the Related Art Conventionally, as a lubricating device of this type, a lubrication means, a pulse generator, a counter for counting and storing pulses from the pulse generator, and a counting operation of the counter are used to operate the main engine. Alternatively, there is one that is provided with a control means for controlling to start or stop according to the stop so that the actual operation accumulated time of the actual main machine is divided at every refueling interval time to perform refueling (Japanese Patent Publication No. 62-62). -4675
7).

[0003]

However, in the above-mentioned conventional lubrication apparatus, the lubrication interval is set only in consideration of the actual operating time of the main engine, and no consideration is given to the lubrication target during the stop time of the main engine. Therefore, when the operation is performed intermittently or when the suspension period is long, there is a problem that lubrication is not performed for a long time and the oil film of the lubricated portion of the main engine may be cut off.

Therefore, an object of the present invention is to provide appropriate lubrication even when the operation pattern of the main engine is intermittent operation, or when the main engine is turned on for a short time and then turned off for a long time. Another object of the present invention is to provide a lubricating device that does not cause a problem such as oil film running out of the lubricated part.

[0005]

In order to achieve the above object, the invention according to claim 1 is to provide an oil supply means for supplying oil to the main engine, and a detection means for detecting whether or not the main engine is in an operating state.
Based on the output of the detection means, the timing is not obtained only while the main engine is operating, and after the main engine starts operating,
Alternatively, after the refueling operation of the refueling means is finished, the timekeeping means determines that the main engine is in operation based on the output of the timekeeping means for timing the refueling interval time and the detecting means. Each time you finish measuring the interval time,
The first control means for operating the refueling means to refuel and the number of cases where the main engine stops the operation after the timekeeping means starts the time counting are stored, and the count value is stored in the memory. When the refueling means performs refueling even once, the count value that clears the count value and the count value of the counting means are compared with a reference value, and when the count value becomes the reference value, the count value becomes the reference value. The second control means for activating the refueling means based on the output of the detecting means at the next start of operation of the main engine in the case of the above.

Further, in the lubrication apparatus of the present invention, the lubrication means for refueling the main engine, the detection means for detecting whether or not the main engine is in an operating state, and the refueling interval time regardless of the operation stop of the main engine. Based on the timing means for timing and the output of the detection means, in a state where it is determined that the main engine is in operation, each time the timing means completes the timing of the refueling interval time, the refueling means is activated. , The number of cases in which the main engine stops operating when the time counting means finishes the time of the refueling interval based on the first control means for refueling, the output of the detection means and the output of the time counting means. Counting is performed by storing the count value in a memory and clearing the count value when refueling is performed by the refueling means even once even in the middle, and comparing the count value of the counting means with a reference value to obtain the above count. When the count value becomes the reference value based on the output of the detection means, the second control means for activating the refueling means is started at the next start of operation of the main engine. It has a feature.

[0007]

According to the lubrication apparatus of the first aspect, the refueling interval time is measured by the time measuring means after the main engine starts operation or after the refueling operation of the refueling means ends. Then, when the time measuring means finishes the time measurement of the refueling interval time during operation of the main engine, the first control means operates the refueling means to perform refueling. Therefore, when the main engine is continuously operated for a long period of time, refueling is performed at predetermined refueling interval times.

On the other hand, the counting means counts the number of cases where the main engine is stopped after the timing means starts counting the time until the refueling interval time elapses, and the count value counted by the counting means is stored in the memory. If the refueling means is operated even once while accumulating the count value counted by the counting means, the count value is cleared. Then, the second control means compares the count value of the counting means with a predetermined reference value, and when the count value becomes the reference value, at the start of operation of the next main engine when the count value becomes the reference value. The second control means actuates the oil supply means.

In this way, when the main engine repeats the operation for a short time which does not reach the refueling interval time, when the number of the operation for a short time reaches a predetermined reference value, the operation is automatically performed at the next operation. Since the oil is supplied, it is possible to supply the lubricating oil even when the main engine is stopped, and it is possible to prevent the oil film from running out in the lubricated portion of the main engine. Further, in this lubricating device, since the counting operation of the counting means is performed only when the main machine is in operation, it is possible to prevent consumption of a power source such as a battery.

According to the lubricating device of the second aspect, the timing means counts the refueling interval time regardless of the operation stop of the main engine. Then, based on the output of the detection means, the first control means actuates the oil supply means to perform oil supply every time the main engine is operating and the time measurement means completes the time measurement of the oil supply interval time. Thus, refueling is performed every refueling interval time while the main engine is operating.

On the other hand, the counting means counts the number of cases where the operation of the main engine is stopped when the time counting means finishes the time of the refueling interval time and stores it in the memory. If the refueling means operates even once while the counting means is counting, the count value is cleared. The second control means compares the count value of the counting means with a reference value, and when the count value of the counting means becomes the reference value, when the count value becomes the reference value, the next time the main engine is started, The oil supply means is operated based on the output of the detection means. In this way, the second control means does not coincide with the timing of the operation of the main engine and the end of the timing of the timing means, and even if there is a case where the operation of the main engine is stopped at the end of the timing of the timing means, or the main engine continues for a long time. Even if the operation of the main engine is stopped, it is possible to refuel the lubricated parts of the main engine.Therefore, even when the operation pattern of the main engine is short-time operation, long-term suspension, or long-term suspension, etc. It is possible to prevent the oil film from running out in the lubrication part.

[0012]

1 is a block diagram showing a lubricating device according to an embodiment of the present invention. Reference numeral 1 is a main engine having a bearing 2 which is a lubricated portion, 3 is a distribution valve for distributing a predetermined amount of lubricating oil to the bearing 2,
5 is a pump for supplying lubricating oil to the distribution valve 3, 6 is a pump 5
Is a motor for driving, and 7 is a lubricating oil tank. The motor 6, the pump 5, and the distribution valve 3 form an oil supply means. Reference numeral 8 is a battery mounted on the main engine 1, 10 is a controller that outputs an operation command signal to a switch 11 that controls driving of the motor 6, and controls the switch 11, and 12 is a micro that outputs a refueling command signal to the controller 10. The computer (microcomputer) 13 is a non-volatile memory. 15
Is an engine key that is an operation switch of the main engine 1,
It also serves as the detection means of this lubricating device.

The microcomputer 12 is provided with a clocking means 21, a first control means 22, a second control means 23 and a counting means 24 which are constituted by software described later. The timekeeping means 21 receives a signal from the operation switch 15 and, after the main engine 11 starts operation, or outputs a refueling command signal for turning off the switch 11 from the controller 10, after a predetermined refueling interval. Time is measured. The time measuring means 21 measures the refueling interval time based on the signal from the operation switch 15 only when the main engine 11 is operating. Therefore, the lubricating device consumes less battery 8. The first control means 22
Determines that the main engine 1 is operating based on the output from the operation switch 15, and the time measuring means 21
Every time a signal indicating that the measurement of the refueling interval time has been completed is received, a signal for turning on the switch 11 is output to the controller 10 to refuel. The counting means 24
Counts the number of times when the main engine 1 stops operating after the timekeeping means 21 starts timing, stores the count value in the non-volatile memory 13, and counts when refueling is performed even once during the counting. Clear the value. The second control means 23 compares the count value of the count means 24 with a predetermined reference value, for example 3, and the count value is 3
When the main engine 1 is operated next when the operation of the main engine 1 is stopped when the count value becomes 3, the controller 10 sends the refueling command signal based on the signal from the operation switch 15. Then, the controller 10 outputs an operation command signal to the switch 11 to drive the motor 6 to refuel. When the operation for a short time without passing the refueling interval time continues three times in this way, refueling is performed at the next operation of the main engine 1. Therefore, if the operation is continued for a short time, refueling is performed even if the refueling interval time has not been reached. That is, since the oil is supplied in consideration of the operation stop time of the main engine, there is no risk of the oil film running out in the lubricated portion of the main engine 1.

FIG. 2 is a time chart for explaining the above-mentioned operation. The high level portion in the upper stage shows that the main engine 1 is operating, and the high level portion in the middle stage integrates the refueling interval time. The high level portion in the lower row indicates that the fueling operation is being performed. When the operation of the main engine 1 is stopped during the refueling operation, the refueling operation is immediately stopped and the motor 6 is rotated in the reverse direction to perform the depressurizing operation to prepare for the next refueling operation.

3 and 4 show the microcomputer 1 of the lubricating device.
It is a flow chart which shows operation of No. 2. The main flow shown in FIG. 3 will be described. First, the count value N of the counting means 24 is set to an initial value 0 (S1). And
It is assumed that the main engine 1 is operated several times, and the power of the main engine 1 is repeatedly turned on and off. Then, next, when the power is turned on, it is confirmed whether or not the count value N of the counting means 24 is 3 (S3). When the count value N is 3, the refueling operation is performed at the time of the next operation of the main engine 1 as shown in P4 of FIG. 2, and when the refueling operation is completed, the count value N is cleared (S4, S5). .. N in step S3
If it is determined that is not 3, step S6
Proceed to step S to integrate the operating time by the time measuring means (S
7). Then, it is determined whether the time measuring means 21 has reached the refueling interval time (S8). When it is determined that the refueling interval time has come (S8), refueling is performed (S9). Then, the count value N of the counting means 24 is set to 0 (S10).

Next, an intermediate flow when the main engine 1 shown in FIG. 4 is turned off will be described. This flow is a flow of counting the number of times the main engine 1 is turned off while the refueling interval time is being measured. Run switch 10 to main engine 1
(S11), the operation of the motor 6 is stopped via the controller 10 and the refueling operation is stopped (S12). Then, the motor 6 is rotated in the reverse direction to perform the depressurizing operation for the next oil supply (S13). That is,
When the operation switch 10 is turned off, the depressurizing operation is immediately performed and the operation is stopped (see P5 in FIG. 2). Then, the count value of the counting means 24 is counted up, and the count value is stored in the nonvolatile memory 13 (S14). Then, the power supply to the microcomputer 12 is cut off (S15). The power of only the clock of the microcomputer 12 may be cut off without cutting off the power of the entire microcomputer 12.

FIG. 5 shows a block diagram of the second embodiment. The same components as those of the first embodiment shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. Only different portions will be described below.
Only the software of the microcomputer 12 is the first in this lubricator.
This is different from the embodiment. The microcomputer 12 includes a time measuring means 31, a first controlling means 32, a second controlling means 33 and a counting means 3 which are configured by software.
4 and. The time measuring means 31 measures a predetermined refueling interval time regardless of the stop of the operation of the main engine 1. Based on the output from the operation switch 15, the first control means turns on the operation switch 11 via the controller 10 every time the main engine 1 is in operation and finishes measuring the refueling interval time. The motor 6 is driven. The counting means, based on the output from the operation switch 15 and the output of the time measuring means 31, determines the number of cases where the operation of the main engine 1 is stopped when the time measuring means 31 finishes measuring the refueling interval time. While counting and storing the count value in the non-volatile memory 13, if refueling is performed by the refueling means 3, 6, 5 during the counting,
The count value stored in the nonvolatile memory 13 is cleared and set to 0. The second control means 33 and the count value of the counting means 34 and a predetermined reference value, for example, 3
When the count value becomes 3, the count value becomes 0 based on the output of the operation switch 15 when the operation of the main engine is started next when the count value becomes 3. When the next operation of the main engine 1 starts,
An operation command signal for turning on the switch 11 is output via the controller 10. FIG. 6 corresponds to FIG. 2 of the first embodiment, and as can be seen from this figure, the operation of integrating the refueling interval time is basically performed even when the operation of the main engine is stopped. However, if the refueling operation is not performed three times at the end of the refueling interval time (Q3, Q4, Q
6), the clocking operation is stopped to prevent the battery 8 from being consumed. Then, the refueling operation is performed at the next start of operation of the main engine 1 (see Q6 in FIG. 6), and the timing operation is restarted from the end of the refueling operation.

FIG. 7 shows the software of the microcomputer 12 shown in FIG. First, the power is turned on (S1), the refueling interval time is measured by the time measuring means 31 (S2), and it is determined whether or not the refueling interval time has elapsed (S3). Then, when the refueling interval time has elapsed, it is determined whether or not the main engine 1 is in operation (S4). When the main engine 1 is in operation, the first control means 32 outputs the operation command signal to the controller 10 To switch on the switch 11 for refueling (S5), and the counting means 3
The count value N of 4 is set to 0, and the process returns to step S2.

On the other hand, if it is determined in step S4 that the main engine 1 is not in operation when the timing means has finished measuring the refueling interval time, the counting means 34 increments the count value (S7), The 2 control means determines whether or not the count value N exceeds 3 (S
8). When the count value N exceeds 3, the process returns to step S4, and when the main engine 1 is in operation, refueling is performed. On the other hand, if N is smaller than 3 in step S8, the process returns to step S2.

As described above, in this embodiment, when the operation of the main engine 1 is stopped at the end of the time measurement of the refueling interval time, as shown by Q3, Q4 and Q5 in FIG. If so, as shown in Q6, refueling is performed during the next operation of the main engine 1. In addition, as shown in Q2 of FIG.
When the operation of the main engine 1 is stopped during the refueling operation, the main engine 1 is operated until the refueling is completed, and thereafter, the integration of the refueling interval time is started.

As described above, according to the present invention, when the operation of the main engine is stopped several times in succession when the time measurement of the refueling time interval is completed, when the main engine 1 is operated next time. Since refueling is performed, refueling can be performed in consideration of the state even when the operation of the main engine 1 is stopped or when the operation of the main engine 1 is repeated, and the oil film of the lubricated portion of the main engine 1 is prevented from running out. be able to.

[0022]

According to the first aspect of the present invention, the refueling interval time is measured only when the main engine is operating, and the refueling interval time is measured after the main engine operation is started or the refueling means is refueled. It is performed after the operation is completed, and moreover, the number of times when the main engine stops operating after the start of timing is counted, the count value is stored in the memory, and refueling is performed by the refueling means even once even during the operation. When it is done, the count value is cleared, and when the count value becomes the reference value, fuel is replenished at the start of the next operation, so
In addition to having the advantage that the power consumption is low, it is possible to refuel in consideration of repeated short-time operation that does not reach the refueling interval time. Even if there is, it is possible to prevent the occurrence of oil film breakage.

According to the second aspect of the present invention, the number of cases in which the refueling interval time is counted regardless of the operation stop of the main engine, and the main engine is stopped when the refueling interval time of the main engine is finished. When the count value exceeds the reference value, refueling is performed to start the operation of the next main engine when the count value reaches the reference value, so the refueling interval time cannot be reached for a short time. Can be lubricated properly even when the operation is repeated, and the oil can be lubricated in consideration of the operation stop time, preventing the oil film from running out of the lubricated part of the main engine and properly lubricating. Can be done.

[Brief description of drawings]

FIG. 1 is a block diagram of a lubricating device according to a first embodiment of the present invention.

FIG. 2 is a time chart showing the operating state of the main engine, the cumulative operation state of the refueling interval time, and the refueling operation.

FIG. 3 is a flowchart showing a main flow of the first embodiment.

FIG. 4 is a flowchart showing an operation of the lubricating device when the main engine is turned off.

FIG. 5 is a block diagram of a lubricating device according to a second embodiment of the present invention.

FIG. 6 is a time chart showing an operating state of a main engine of the second embodiment, a cumulative operation state of a refueling interval time, and a refueling operation.

FIG. 7 is a flowchart showing a lubricating operation of the second embodiment.

[Explanation of symbols]

1 ... Main engine, 2 ... Bearing, 3 ... Distribution valve, 5 ... Pump, 6 ... Motor,
8 ... Battery, 10 ... Controller,
11 ... Switch, 12 ... Microcomputer,
13 ... Non-volatile memory, 15 ... Operation switch,
21, 31 ... Clocking means, 22, 32 ... First control means, 23, 33 ... Second control means, 24, 34 ...
Counting means.

Claims (2)

[Claims] 1. A refueling means (3, 5, 6) for refueling a main engine (1)
And a detection means (15) for detecting whether or not the main engine (1) is in an operating state, and based on the output of the detection means (15), timing is not obtained only while the main engine (1) is in operation. And, after the main engine (1) starts to operate, or after the refueling operation of the refueling means (3, 5, 6) ends, a timekeeping means (21) for measuring the refueling interval time, and Every time the time measuring means (21) finishes measuring the refueling interval time in a state where it is determined that the main engine (1) is operating based on the output of the detecting means (15), the refueling means is
First control means for refueling by activating (3, 5, 6)
(22) and the number of cases where the main unit (1) stops operating after the time counting means (21) starts counting the time, and the count value is stored in the memory (13). But refueling means (3,
(5, 6) compares the count value of the counting means (24) that clears the count value when refueling is performed with the reference value, and when the count value becomes the reference value, the count When the operation of the main engine (1) is started next when the value becomes the reference value, the refueling means is based on the output of the detecting means (15).
And a second control means (23) for operating (3, 5, 6). 2. Refueling means (3, 5, 6) for refueling the main engine (1)
A detecting means (15) for detecting whether or not the main engine (1) is in an operating state, a time measuring means (31) for measuring a refueling interval time regardless of the operation stop of the main engine (1), Based on the output of the detection means (15), each time the time counting means (31) finishes measuring the refueling interval time in a state where it is determined that the main engine (1) is operating, the refueling means (3 , 5, 6) are actuated to supply oil, and based on the outputs of the first control means (32), the detection means (15) and the time measurement means (31), the time measurement means (31) When the main engine (1) is stopped when the interval time has been measured, the number is counted and stored in the memory (13), and the refueling means (3, 5, Based on the count value of the counting means (34) and the counting means (34) that clears the count value when refueling is performed by 6). Compared to the value, when the count value becomes the reference value, the detecting means
Based on the output of (15), the second control means (33) for operating the refueling means (3, 5, 6) at the start of operation of the next main engine (1) when the count value becomes the reference value. ) And a lubrication device.