JPH11180535A - Oil applicating device for roller chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil applicating device for a roller chain capable of ensuring the prevention of dripping and spattering of lubricating oil and applicating a proper amount of lubricating oil uniformly to the roller chain at specified positions. SOLUTION: A applicating member 9 made of compressed felt is installed on a roller chain 2 on the lower part. A contact part 13 in contact with a roller 5 of the roller chain 2 is installed on the upper part of the applicating member 9. The coating member 9 is stored in a case part 10, and the contact part 13 is exposed. Lubricating oil is force-fed by an oil feed means into the case part 10 through oil feed paths 16a and 16b. Also, an oil receiving part 11 to receive excess lubricating oil oozed from the contact part 13 and flowed down along the outer wall of the case part 10 is installed on the lower part of the case part 10. Then a drain path is installed to drain lubricating oil from an oil receiving part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil applicator for applying lubricating oil to a roller chain which is wound around a plurality of sprockets and rotated endlessly.

[0002]

2. Description of the Related Art As a conveying means such as a conveyor and a power transmission means therefor, there is known an endlessly connected roller chain which is rotated across a plurality of sprockets. The roller chain generally includes a plurality of connecting plates, a plurality of connecting pins for connecting the connecting plates, and a roller supported by the connecting pins. This type of roller chain is indispensable to apply lubricating oil in order to be smoothly driven by meshing with the sprocket.

Conventionally, when applying lubricating oil to a roller chain of this type, the roller chain is rotated, and a brush containing the lubricating oil is slid on the roller chain from above the roller chain in a part of the rotation track. Contacting is performed. According to this, it is possible to apply the lubricating oil to the roller chain while the conveyor or the like is being driven, without having to periodically perform the oil supply operation to the roller chain.

However, since the brush is provided so as to be in sliding contact with the roller chain, the supply of the lubricating oil to the brush is facilitated by the flow of the lubricating oil under its own weight. Oil droplets adhere to the tip of the. For this reason, when applying the lubricating oil as described above, the oil droplets adhering to the brush excessively adhere to the roller chain, and excess lubricating oil drips from the roller chain or the roller chain moves. Scattered, thereby contaminating the surroundings.

In recent years, a so-called oilless chain has been used in which lubricating oil is sealed between a connecting pin and a roller, and oil supply for smooth rotation of the roller and bending of each connecting plate is not required. Is done. In this case, lubricating oil may be applied only to the surface of the roller that comes into contact with the sprocket. However, the brush spreads outward due to contact with the roller chain, and there is a disadvantage that the lubricating oil adheres to portions other than the surface of the roller that do not require application.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and has been made in view of the above circumstances. Accordingly, it is possible to reliably prevent dripping or scattering of lubricating oil, and to uniformly apply a proper amount of lubricating oil to a predetermined portion of a roller chain. It is an object of the present invention to provide a roller chain oil application device that can perform the above-described operations.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to an endless rotating device that spans between a plurality of sprockets, and includes a plurality of connecting pins for connecting a plurality of connecting plates to each connecting plate. An oil applicator for applying lubricating oil to a roller chain consisting of rollers supported by respective connection pins, provided at a position below the roller chain along a predetermined range of a track on which the roller chain is rotated. A block portion made of a compressed felt made of lubricating oil and capable of penetrating and holding the lubricating oil, and a contact portion for storing and supporting the coating member; A case for restricting the seepage of the lubricating oil to the corresponding contact by exposing the lubricating oil, an oil supply passage for supplying the lubricating oil into the case, and a connection to the oil supply passage. An oil supply means for press-fitting the lubricating oil into the application member in the case portion so that the amount of the lubricating oil seeping out from the contact portion can be adjusted, and a lower portion of the case portion provided with an oil supply means. An oil receiving portion for receiving extra lubricating oil flowing out along the outer wall of the case portion and a discharge path for discharging the lubricating oil from the oil receiving portion are provided.

According to the present invention, the abutting portion of the applying member abuts on a predetermined portion of the roller chain, such as a roller, so that the lubricating oil can be applied only to the predetermined portion.
The coating member is made of a block-shaped compression felt, and can be held in a state where the lubricating oil is impregnated by press-fitting the lubricating oil by the oil supply means.
That is, the application member made of compression felt absorbs the lubricating oil to some extent by capillary action, but by applying pressure to the lubricating oil supplied by the oil supply means,
The contact portion on the upper portion of the application member can be surely soaked, and the amount of penetration into the contact portion can be easily adjusted by adjusting the pressure applied to the lubricating oil. Therefore, an appropriate amount of lubricating oil can be impregnated in the coating member. Then, the lubricating oil that has permeated the application member is exuded by the case portion only from the exposed contact portion. This makes it possible to reliably apply the lubricating oil to the roller chain in a portion that comes into contact with the contact portion, and furthermore, a portion that does not come into contact with the contact portion, that is, a portion that does not require application of the lubricating oil. It is possible to prevent the lubricating oil from adhering to the surface.

[0009] The amount of the lubricating oil seeping out from the contact portion is adjusted to an appropriate amount by the oil supply means. For example, when a roller chain is pressed against the contact portion, excessive lubrication oil is applied. It is possible that the oil seeps out of the abutment. Therefore, in the present invention, excess lubricating oil that seeps out of the contact portion is caused to flow down along the outer surface of the side wall of the case portion, and the excess lubricating oil that has flowed down is discharged from the discharge passage via the receiving portion. By doing so, excess lubricating oil that seeps out of the contact portion does not adhere to the roller chain and is discharged from the discharge path, so that it is possible to reliably prevent the lubricating oil from dripping or scattering from the roller chain. .

[0010] In the present invention, it is preferable that the abutting portion is provided in such a length that the abutting portion contacts the roller and the roller makes at least one rotation. Thereby, the lubricating oil that seeps out of the contact portion can be uniformly applied to the peripheral wall of the roller.

[0011] In the present invention, the coating member may include:
It is preferable that the side wall at a position corresponding to the oil supply path has a concave portion that forms a gap between the oil supply path and the oil supply path. As described above, the application member made of compressed felt holds the lubricating oil by impregnating the lubricating oil supplied from the oil supply path. At this time, for example, when the application member is brought into close contact with the oil supply path, the lubricating oil permeates the application member from a relatively narrow range corresponding to the width of the outlet of the oil supply path. Large resistance occurs. Therefore, in the present invention,
By providing the gap, the lubricating oil press-fitted from the oil supply path is once released by the gap. At this time, the lubricating oil is dispersed and soaks into a relatively wide area around the gap, and the resistance is reduced. Thereby, lubricating oil can be smoothly pressed into the application member.

[0012]

An embodiment of the present invention will be described with reference to the drawings. 1 is an explanatory plan view showing the oil application apparatus of the present embodiment, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a sectional view taken along the line III-III in FIG.

The oil application device 1 of the present embodiment shown in FIGS. 1 to 3 applies lubricating oil to a roller chain 2 (see FIGS. 2 and 3). The roller chain 2
Are endlessly rotated between a plurality of sprockets as a conveying means (not shown) or a power transmission means therefor. As shown in FIGS. It includes a plate 3, a plurality of connecting pins 4 for connecting each connecting plate 3, and a roller 5 supported by each connecting pin 4. In this embodiment, the roller chain 2 to which the lubricating oil is applied is the same as that shown in FIG.
As shown in FIG. 2, a grease 8 is sealed between a connection pin 4 and a bush 6 mounted on the connection pin 4 by a seal ring 7, and the rotation of the roller 5 and the connection plate 3
An oil-less chain is known in which lubricating oil is required only on the outer peripheral surface of the roller 5, which is a portion that comes into contact with a sprocket (not shown), without the need for lubrication for smooth bending of the roller.

As shown in FIG. 1, the oil application device 1 of the present embodiment comprises a block-shaped application member 9 and the application member 9.
Case 10 (case portion) for storing
And an outer case 11 (oil receiving portion) for storing
As shown in FIG. 2, the outer case 11 is fixedly supported on a frame 14 such as a conveyor (not shown) via fixing bolts 13 by a support member 12 provided on the bottom of the outer case 11. At this time, the position of the oil application device 1 fixed and supported by the support member 12 is below the roller chain 2. Therefore, the application member 9 is brought into contact with the lower side of the roller chain 2.

As shown in FIG. 2, the coating member 9 is formed of a compression felt having a thickness substantially equal to the width of the roller 5 of the roller chain 2. By making the application member 9 made of compressed felt, it is possible to impregnate and hold the lubricating oil. As shown in FIGS. 2 and 3, a contact portion 13 that contacts the outer surface of the roller 5 of the roller chain 2 is provided on the upper portion of the coating member 9. The corresponding contact portion 13 is provided on the entire outer surface of the roller 5 of the roller chain 2 which rolls while contacting the corresponding contact portion 13.
Roller 5 to apply lubricating oil
Is preferably formed to have a length equal to or greater than the outer peripheral dimension (the distance that the roller 5 makes one rotation). In the present embodiment, the contact portion 13 is provided over about three times the outer peripheral dimension of the roller 5 (the distance over which the roller 5 rotates about three times).

As shown in FIGS. 2 and 3, the inner case 10 houses the coating member 9 with its contact portion 13 exposed. That is, as shown in FIG. 1, the inner case 10 has
a, 14b, 14c, 14d and the bottom plate 15 (FIGS. 2 and 3).
).

Also, as shown in FIG.
Oil supply ports 17a, 17b are formed in a pair of side walls 14a, 14b opposed to each other, through which one ends of supply pipes 16a, 16b, which are oil supply paths, penetrate and are connected. Oil supply means (not shown) for supplying lubricating oil is connected to the other ends of the supply pipes 16a and 16b. The oil supply means press-fits the lubricating oil into the coating member 9 of the inner case 10 via the two supply pipes 16a and 16b, and the pressure for press-fitting the lubricating oil is adjustable. As shown in FIG. 1, the oil supply ports 17a and 17b are provided on both sides of the respective side walls 14a and 14b so as to be separated from each other. The lubricating oil is soaked uniformly from both ends of the member 9.

Further, as shown in FIGS. 1 and 2, both oil supply ports 17 of the coating member 9 housed in the inner case 10 are provided.
recesses 18a, 18b on the respective side faces facing a, 17b.
b is formed. The coating member 9 and the oil supply ports 17a and 17b do not adhere to each other by the recesses 18a and 18b, and a gap x is provided as shown in FIG. Although the concave portions 18a and 18b of the present embodiment are formed to have a substantially hemispherical shape, the shape of the concave portions 18a and 18b is not limited to this.
Any shape may be used as long as a gap x is formed between the holes a and 17b. As another specific example, although not shown, a circular hole having a larger inner diameter than the oil supply ports 17a and 17b may be used, or a through hole penetrating the coating member 9 may be used.

Further, the inner case 10 has a structure shown in FIGS.
As shown in the figure, a support plate 19 extending horizontally at the bottom is provided.
And height-adjusting bolts 20 are screwed through the four corners. The support plate 19 is vertically movable by the rotation of a bolt 20 so that the outer case 11 can be moved.
It is stored in.

As shown in FIG. 1, the outer case 11 has side walls 21a, 21b, 21 surrounding the inner case 10.
2 and 3, and a bottom plate 22 on which the inner case 10 is placed via its support plate 19, as shown in FIGS. The outer case 11 includes the contact portion 1
The excess lubricating oil that has oozed out of the inner case 10
As shown in FIG. 1, a discharge pipe 23 serving as a discharge path for further discharging the lubricating oil to the outside is provided in the outer case 11 as shown in FIG.
Are connected through one side wall 21a.

Next, the operation of the oil application device 1 according to the present embodiment having the above configuration will be described with reference to FIGS. First, lubricating oil is impregnated and held in the application member 9. Since the application member is made of compressed felt, it absorbs the lubricating oil to some extent by capillary action, but by applying pressure to the lubricating oil supplied by the oil supply means, the upper contact portion of the application member 9 is contacted. 13 can always hold an appropriate amount of lubricating oil.

Further, the inner case 1 is supplied from the oil supply means.
0 when lubricating oil is press-fitted into the oil supply port 1
The lubricating oil supplied from 7a and 17b is supplied to the gap x
, The concave portion 1 of the coating member 9 surrounding the gap x
8a and 18b disperse and penetrate into the inner walls. By doing so, for example, the application member 9 is
The lubricating oil supplied from the oil supply ports 17a and 17b can be permeated into the application member 9 without resistance, as compared with a case where the lubricating oil is closely adhered so as to cover the a and 17b.

The lubricating oil that has soaked into the application member 9 is pressed into the oil supply means so that the side walls 14a,
It is lifted by the contact portion 13 exposed from the inner case 10 while being regulated by the bottom plates 15 and 14b, 14c, 14d. In this manner, the lubricating oil can be surely soaked into the contact portion 13 on the upper portion of the application member 9, and further, the lubricating oil can be applied to the contact portion 13 by adjusting the pressure applied to the lubricating oil. The amount of penetration can be easily adjusted.

The roller chain 2 is rotated by contacting the contact portion 13 from which lubricating oil is absorbed and held from below. The contact portion 13 contacts a part of the outer surface of the roller 5 of the roller chain 2. However, the rotation of the roller chain 2 causes the roller 5 to rotate while contacting the contact portion 13, and the entire outer peripheral surface of the roller 5 is rotated. The lubricating oil that seeps out of the contact portion 13 is applied. The height of the contact portion 13 of the application member 9 can be adjusted via the inner case 10 by rotating the bolt 20 provided on the support plate 19 of the inner case 10 described above. I have. Thus, by adjusting the height of the contact portion 13, the contact pressure of the contact portion 13 with the roller 5 can be adjusted appropriately.

In this way, the contact portion 13 of the application member 9 comes into contact with the roller 5 of the roller chain 2 so that lubricating oil can be applied only to the roller 5.

Further, even if excess lubricating oil is oozed out of the abutting portion 13 and overflows from the inner case 10, the extra lubricating oil is received by the outer case 11 and further discharged. 23.
As a result, the excess lubricating oil is
The lubricating oil does not adhere to the roller chain 2
It is possible to reliably prevent the lubricating oil from dripping or scattering due to excessive adhesion to the oil.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view showing an oil application device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a sectional view taken along the line of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Oil coating device, 2 ... Roller chain, 9 ... Coating member, 10 ... Inner case (case part), 11 ... Outer case (oil receiving part), 13 ... Contact part, 16a, 16b ... Supply pipe (oil supply) , 18a, 18b recess, 23 discharge pipe (discharge path), x void.

Claims (3)

[Claims] 1. A roller chain comprising a plurality of connecting plates, a plurality of connecting pins for connecting the connecting plates, and a plurality of connecting pins for connecting the connecting plates, and a roller supported by the connecting pins. An oil application device for applying oil, the oil application device being provided at a lower position of the roller chain along a predetermined range of a track on which the roller chain is rotated, and having an abutting portion that abuts a predetermined portion of the roller chain on an upper side. A block-shaped coating member made of a compressed felt, which is capable of penetrating and holding the lubricating oil, and containing and supporting the coating member to expose the abutting portion, thereby restricting the seepage of the lubricating oil to the corresponding abutting portion. A case section, an oil supply path for supplying lubricating oil into the case section, and an amount of lubricating oil that is connected to the oil supply path and that can be extruded from the contact section. Oil supply means for press-fitting the lubricating oil into the application member in the case portion, and an excess lubricating oil provided at a lower portion of the case portion and oozing out of the contact portion and flowing down along the outer wall of the case portion. An oil application device for a roller chain, comprising: an oil receiving portion for receiving oil; and a discharge path for discharging lubricating oil from the oil receiving portion. 2. An apparatus for applying oil to a roller chain according to claim 1, wherein said contact portion is provided in such a length that said roller comes into contact with a roller of said roller chain and at least makes one rotation. . 3. The roller according to claim 1, wherein the coating member has a concave portion that forms a gap between the coating member and the oil supply passage on a side wall corresponding to the oil supply passage. Chain oil applicator.