JP3046956B2 - Oil lubrication system with filter clogging prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil lubricating device with a device for dealing with filter clogging.

[0002]

2. Description of the Related Art Rotating parts of a rotary machine, particularly rolling bearings, are lubricated for maintaining smooth rotation. Lubricants include grease, oil and the like. Grease is unsuitable for lubricating high-speed rotating parts because of its life problem. Such parts are lubricated with low viscosity oil. The oil is required to be free of impurities and is supplied continuously or periodically to the rotating part in an appropriate amount so as not to be excessive. The form of supply of the oil includes, for example, a continuous supply method, a dropping method, an air oil method, and an oil injection method.

Conventionally, an oil lubricating apparatus as shown in FIG. 3 of the accompanying drawings has been used for such a purpose. In this apparatus, a removable lid member 53 is provided in a container in which a bottom member 52 is attached to a cylindrical body 51, and a storage space 54 for storing lubricating oil is provided inside the container. The bottom member 52 is formed with an oil supply chamber 55 forming a recess, and the oil supply chamber 55 and the storage space 54 are separated by a filter 56. The oil supply chamber 55 is connected to an oil supply pipe 57 that guides lubricating oil to a rotating part.

In the known device shown in FIG. 3, the lubricating oil flows into the storage space 54 with the lid member 53 removed. The lubricating oil in the storage space 54 is purified through the filter 56 by the amount used through the oil supply pipe 57, and then reaches the oil supply chamber 55 for use.

[0005]

However, due to the long-term use of the device, the filter 56 is clogged. The fact that the filter is clogged means that the lubricating oil does not reach the rotating part. The rotating part of a machine to which this type of device is applied rotates at high speed, and is damaged by high-speed rotation without lubricating oil. In order to deal with this early stage of the damage, a bearing monitoring device may be provided, but it is necessary to prevent it before the damage. Also, not all bearings are provided with the expensive monitoring device.

SUMMARY OF THE INVENTION In view of the above circumstances, according to the present invention, even if the filter becomes clogged, it is possible to detect the clogging of the filter at an early stage before damage starts at a rotating part, and to quickly cope with the problem. It is intended to provide a device.

[0007]

In the oil lubricating apparatus according to the present invention, an internal space of a container for storing lubricating oil is formed by an upper storage space communicating with a filter and a lower oil supply chamber. .

In such an oil lubricating device, the above object is achieved by the following first invention and second invention.

<First Invention> In the present invention, the oil supply chamber can be connected to an oil supply pipe for guiding lubricating oil to a rotating part. A monitoring pipe extending to at least a level higher than the oil level of the lubricating oil in the storage space communicates with the oil supply chamber. The monitor tube is made of a transparent material which is open at the upper end side and at least allows the oil level in the monitor tube to be seen through the fluctuation range of the oil level. Has become.

[0010] In the first invention device having such a configuration, when the filter is clogged, the lubricating oil stored in the storage space no longer reaches the oil supply chamber. Therefore, only the lubricating oil remaining in the oil supply chamber is sent out toward the rotating part. Then, the lubricating oil in the monitoring pipe communicating with the oil supply chamber is also sent to the rotating part via the oil supply chamber. That is, since the lubricating oil in the storage space does not decrease, the oil level (level) does not decrease.
The oil level in the monitoring pipe gradually decreases, and a level difference occurs between the two oil levels.

In the first invention, since the level difference of the oil level can be visually observed from the outside, when this level difference is found, it is determined that the filter is clogged, and the filter is immediately replaced and the filter is rotated. Can stop rotation and reduce speed.

Further, in the first invention, the rotating part can be sufficiently lubricated with the lubricating oil remaining in the oil supply chamber and the monitoring pipe unless the level difference is too large, so that normal rotation is maintained and damage is caused. Nothing. Therefore, a countermeasure can be taken in the meantime.

[0013] In the first aspect of the present invention, the monitoring pipe may be provided in the container, and the container may be made of a transparent material at least in a range in which a change in the oil level of the monitoring pipe can be monitored. Further, the monitoring tube can be arranged outside the container.

<Second invention> In the first invention, the container and the monitoring tube are made of a see-through material at least in a range where the oil level can be visually checked. However, according to the second invention, a float is arranged on the oil surface. In addition, there is no need to use a transparent material.

According to the second invention, a guide space extending parallel to and close to the monitoring pipe is formed in the storage space.
Floats are respectively arranged in the monitoring pipe and the guide space,
In the storage space or outside the storage space, a detection device that detects a position difference between the floats in the height direction and emits a signal when a detection value is equal to or more than a predetermined value is provided, and the detection device warns based on the signal. Connected to a warning device that emits

In the device of the second aspect of the invention, if the filter is clogged, a difference in height between the monitoring tube and the float in the guide space occurs. This can be detected by a detection device and notified by a warning device. Therefore,
Automatically detects clogging of filters without bothering you.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG.
An embodiment of the present invention will be described. FIG. 1A is a longitudinal sectional view showing the apparatus of this embodiment in a state where the filter is clogged, and FIG. 1B is a longitudinal sectional view showing a state where the filter is clogged.

In the drawing, the container has a bottom member 2 of a cylindrical body 1 and a lid member 3 is detachably provided at an upper opening of the cylindrical body 1 to supply lubricating oil into the container. Is possible.

The bottom member 3 has a relatively large thickness, a concave portion 4 is formed at the center, and a filter 5 is replaceably mounted on the upper edge. Therefore, the space in the container includes a storage space 6 formed by a large space above the filter 5 and a refueling chamber 7 located below the storage space 6 and communicating with the storage space 6 via the filter 5. It is divided into The lower part of the oil supply chamber 7 is a connection port 7A for connecting an oil supply pipe (not shown) for guiding lubricating oil to a rotating part such as a rolling bearing.

A monitoring tube 8 extending vertically along the inner wall surface of the tubular body 1 is provided in the tubular body 1. The monitoring pipe 8 is open at the upper end 8A, is held by the bottom member 2 at the lower part 8B, and communicates with the oil supply chamber 7 at the lower part 8A through the communication hole 9.

In the present embodiment, the monitoring pipe 8 is made of a see-through material from which the level of the lubricating oil in the monitoring pipe 8 can be visually checked. At least the range in which the oil level in the monitoring tube 8 fluctuates is made of the see-through material. In addition, the cylindrical body 1 is also made of a transparent material at least in a range where the oil level fluctuation of the monitoring pipe can be monitored.

In use, in the present embodiment, first, the lid member 3 is removed, a predetermined amount of lubricating oil is supplied into the storage space 6 from the upper opening of the tubular body 1, and then the lid member 3 is removed.
Is attached.

In the apparatus of this embodiment, when the filter 5 is operating normally without clogging, the storage space 6 and the monitoring pipe 8 are in communication with each other, and the internal lubricating oil is The planes are at the same level as in FIG. Therefore, as the lubricating oil is supplied from the oil supply chamber 7 to the rotating part, the oil level in the storage space 6 and the oil level in the monitoring pipe 8 are the same and lower together.

Next, as a result of long-term use of the device, the filter 5
When clogging occurs, the storage space 6, the fuel supply chamber 7, and the monitoring pipe 8 are shut off. Therefore, the lubricating oil in the storage chamber 6 no longer reaches the oil supply chamber 7 and the monitoring pipe 8, and the lubricating oil in the oil supply chamber 7 decreases as the oil is supplied to the rotating parts. That is, the lubricating oil in the storage space 6 does not decrease, but only the lubricating oil in the oil supply chamber 7 and the monitoring pipe 8 decreases. As a result, as shown in FIG. 1B, a level difference H is generated between the level of the oil level in the storage space 6 that remains at a fixed position without lowering and the level of the oil level in the monitoring pipe 8 that gradually decreases. It will be. That is, the fact that the observer has visually found the level difference H means that the filter 5 has been clogged. Then, immediately, countermeasures such as replacement of the filter 5, cleaning, and stop of rotation of the rotating part can be taken.

While taking countermeasures from the above-mentioned finding of clogging of the filter, the lubricating oil in the oil supply chamber 7 and the monitoring tube 8 contributes to the lubrication of the rotating part to the rotating part. It does not generate heat and does not cause damage. Therefore, it is desirable to determine the internal volumes of the refueling chamber 7 and the monitoring pipe 8 in consideration of the time required for this response.

The invention is not limited to the examples described above. The monitoring tube 8 can be disposed outside the cylindrical body 1 as shown by a two-dot chain line in FIG. While placing the monitoring tube 8 in a cylindrical body has the advantage of making the entire device compact and simple in external form, placing it outside the cylindrical body makes it easier to see the level of the oil level in the monitoring tube 8. Gain the advantage of doing so. When it is arranged outside the cylindrical body, its upper end is preferably located inside the cylindrical body 1 and opened.

The present invention is not limited to the illustrated example. The tubular body and the monitoring tube may be made of a see-through material within a range in which the level fluctuation of the lubricating oil level in each of them can be visually confirmed, but may be made entirely of a see-through material.
In addition, the supply of the lubricating oil to the storage space of the cylindrical body is not necessarily performed when the lubricating oil is reduced by removing the lid member, but the supply pipe is connected to the cylindrical body, and the supply pipe is connected to the cylindrical body at an appropriate time or continuously. May be replenished.

Further, according to the present invention, by adopting the form as shown in FIG. 2, it is not necessary to use a see-through material, and a clogging warning can be automatically issued. In the apparatus shown in FIG. 2, a float 10 is arranged in the monitoring pipe 8. Also,
In the storage space 6, a guide space 11 through which lubricating oil can freely flow is formed so as to be close to and parallel to the monitoring pipe 8. The guide space 11 can be formed, for example, by forming a circulation hole at an appropriate position in the partition plate 12.
Alternatively, a wire extending in the vertical direction and guiding the float may be used. Further, a float 13 similar to the float in the monitoring pipe 8 is arranged in the guide space 11.

A detection device 14 is provided outside the container 1 in the vicinity of the monitoring tube 8 and the guide space 11, and is connected to a warning device 15. The detection device 14 detects the height position of each of the two floats 10 and 13 and calculates the difference between them.
It issues a signal to the warning device 15.

By doing so, the apparatus of this embodiment is
When the filter 5 is clogged and the oil level in the monitoring pipe 8 drops to a predetermined position, the floats 10 and
13 are detected, and the clogging is warned. In addition, the said detection apparatus may be arrange | positioned in a container.

[0031]

As described above, according to the present invention, the clogging of the filter can be recognized by visually monitoring the level difference of the oil level between the storage space and the monitoring pipe.
Very simple and quick response measures can be taken.
In addition, the lubricating oil remaining in the oil supply chamber and the monitoring pipe can keep the rotating parts sufficiently lubricated from the time the filter clogs to the time when countermeasures are taken, thus avoiding the situation where the bearings etc. generate heat at the rotating parts. it can.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an apparatus according to an embodiment of the present invention,
(A) shows a normal state, and (B) shows a filter clogging.

FIG. 2 is a longitudinal sectional view of a device according to another embodiment of the present invention.

FIG. 3 is a longitudinal sectional view of a conventional device.

[Explanation of symbols]

1, 2, 3 container (1: cylindrical body, 2: bottom member, 3: lid member) 5 filter 6 storage space 7 oil supply chamber 8 monitoring tube 10 float 11 guide space 13 float 14 detection device 15 warning device

Claims (4)

(57) [Claims] 1. An oil lubrication device in which an internal space of a container for storing lubricating oil is formed by an upper storage space and a lower oil supply chamber communicating with each other via a filter, wherein the oil supply chamber is connectable to an oil supply pipe. And a monitor pipe extending at least to a height equal to or higher than the oil level of the lubricating oil in the storage space communicates with the monitor pipe. An oil lubricating device with a filter clogging prevention device, wherein the container is made of a see-through material that can be seen through a variation range of a surface, and at least a portion of the variation range is visible. 2. A filter clog according to claim 1, wherein the monitoring tube is disposed in a container, and the container is made of a transparent material at least as far as the level of the monitoring tube can be monitored. Oil lubrication device with compatible device. 3. The oil lubricating apparatus according to claim 1, wherein the monitoring pipe is provided outside the container. 4. An oil lubrication device in which an internal space of a container for storing lubricating oil is formed by an upper storage space communicating with a filter and a lower oil supply chamber, wherein the oil supply chamber is connectable to an oil supply pipe. And a monitor pipe extending at least to a height equal to or higher than the oil level of the lubricating oil in the storage space communicates therewith, and a guide space extending parallel to and close to the monitor pipe is formed in the storage space. A float is disposed in each of the monitoring pipe and the guide space, and a position difference in the height direction between the floats is detected in the storage space or outside the storage space, and a signal is output when the detected value is equal to or larger than a predetermined value. An oil lubrication device with a filter clogging prevention device, comprising: a detection device that emits an alarm; and the detection device is connected to an alarm device that issues an alarm based on the signal.