JP3474536B2 - Wire rope lubrication device and lubrication system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire rope lubrication device and a lubrication system suitable for lubrication and rust prevention of a wire rope.

[0002]

2. Description of the Related Art Conventionally, cranes, elevators, lifts,
Wire ropes are widely used for driving dams and river gates, and these wire ropes are regularly lubricated for the purpose of preventing corrosion and wear.

As this type of lubricating device, for example, one shown in FIG. 6 is known. The lubricating device shown in the figure is
The wire rope 61 is sandwiched in the cylindrical container 60 composed of the half-divided parts 60a and 60b, and grease is forced to be injected at high pressure by the grease pump until the grease supply chamber 62 in the cylindrical container 60 is full. Has become.

On the upper and lower sides of the grease supply chamber 62, upper sealing members 63a and 63b are combined to form a ring.
Also, the lower sealing members 64a and 64b are provided so that the injected grease does not leak from the cylindrical container 60. The hole diameter of each seal material is equal to or slightly smaller than the outer diameter of the wire rope 61 in order to improve the sealing degree of the seal.

According to this lubricating device, since the grease is supplied to the wire rope at a high pressure, it is possible to lubricate from the surface to the inside.

[0006]

However, in the above-described conventional lubrication apparatus, the sealing material in the tubular container 60 must be replaced each time lubrication of wire ropes having different diameters is required. Become complicated. Further, since the grease application thickness is governed by the hole diameter of the selected sealing material, there is a problem that it is difficult to apply an appropriate amount.

The present invention has been made in consideration of the above-mentioned problems in the conventional lubrication apparatus, and it is possible to perform lubrication on wire ropes having different diameters without exchanging parts, and moreover, coating thickness The present invention provides a wire rope lubrication device and a lubrication system capable of maintaining a proper amount.

[0008]

A wire rope lubrication device of the present invention has a tubular hole for inserting a wire rope in a split type container, and a lubricant is applied to the wire rope sandwiched in the split type container. In a wire rope lubrication device that pressurizes and supplies the lubricant, a lubricant supply chamber that is provided in the split-type container for contacting the pressurized lubricant with the peripheral surface of the wire rope, and a wire rope insertion direction of the lubricant supply chamber It is arranged on both sides and has a truncated conical shape with the cylinder axis as the central axis so that it can adhere to the outer peripheral surface of wire ropes of different diameters.
And an elastic seal having an inner wall surface formed on the elastic seal, and configured to apply the lubricant supplied to the lubricant supply chamber to the wire rope through the wire rope contact portion of the elastic seal. Use as a summary.

Sealing by the elastic seal of the present invention is tolerant of passing a small amount of lubricant, but to the extent that it is desired to be small.

According to the present invention, when the pressurized lubricant is supplied to the lubricant supply chamber, it contacts the outer peripheral surface of the wire rope and lubricates the surface to the inside. The lubricant then tries to leave the lubricant supply chamber along the wire rope,
Since the elastic seal is in close contact with the outer peripheral surface of the wire rope,
Excess lubricant is squeezed when passing through the close contact area,
The lubricant is applied in an appropriate amount and simultaneously applied uniformly.

In the present invention, if the elastic seal is formed of a tubular member and is formed in a truncated cone shape from the central portion in the tubular axial direction toward the end portion, the elastic seal is applied to the outer peripheral surface of the wire rope of different diameters. Can be firmly attached.

In the present invention, if the split type container is provided with a holding means for holding the wire rope on the central axis of the cylindrical hole, the wire rope is always fed to the center of the lubricating device. Can be evenly applied to the outer peripheral surface of the wire rope.

In the present invention, if the wire rope outlet of the split type container is provided with a coating thickness adjusting means for adjusting the coating thickness of the applied lubricant, it is possible to prevent excessive application of the lubricant. As a specific example of the coating thickness adjusting means, a brush that scrapes off the lubricating oil remaining in the valleys of the strands in the wire rope cross section is shown. If this brush is provided, no lubricant remains in the strand valleys of the wire rope, and the entire outer peripheral surface of the wire rope can be uniformly lubricated.

In the present invention, a lubricant storage portion for storing the lubricant scraped off by the brush can be provided in the split container. With this configuration,
It is possible to lubricate the excess lubricant without leaking out of the split container.

The lubrication system of the present invention comprises a wire rope lubrication device having the above-mentioned structure, a lubricant pressurizing and supplying means for pressurizing and supplying the lubricant to the lubricant supply chamber, and the above-mentioned split container as the wire rope. The gist of the present invention is to include a driving unit that moves along. According to this configuration, the wire rope can be lubricated by itself.

If the lubricating system is provided with a pressure detecting means for detecting the pressure in the lubricant supply chamber, and the driving means is driven when the detected pressure reaches a predetermined value, lubrication is performed under a constant pressure. Since the agent can be supplied, uneven lubrication can be prevented.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a wire rope lubrication device according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a basic structure of a wire rope lubrication device (hereinafter referred to as a lubrication device).
(A) is a front view showing the inside with a part thereof cut away, and (b) is a bottom view.

In both figures, a lubrication device 1 is composed of a cylindrical split type container 2 in which a wire rope 3 is provided.
Is formed with a cylindrical hole h. Then, the split-type container 2 is split into two in the cylinder axis direction (see the half-split parts 2a and 2b in the figure) and attached to the wire rope 3.

A lubricant supply chamber 4 composed of an annular groove is provided at substantially the center of the split type container 2. The lubricant is supplied to the body part of the split type container 2 in communication with the lubricant supply chamber 4. Is provided with a grease injection hole 4a for injecting grease.

Elastic seals 5 and 6 made of elastic members are provided on the upper and lower sides of the lubricant supply chamber 4, respectively.

The elastic seals 5 and 6 have the same structure,
Explaining the upper elastic seal 5 as a representative, the elastic seal 5 is formed in a tubular shape, and a T-shaped protrusion 5a is provided around the outside of the central portion thereof. The protrusion 5a is engaged with and integrated with a metal mounting ring 7 having a C-shaped cross section.
The attachment ring 7 is held in the engagement groove 2d of the collar portion 2c that is formed in a ring shape from the inner surface of the split container 2.

The elastic seal 5 may be made of, for example, urethane resin, silicone resin, natural rubber, synthetic rubber or the like, which is excellent in wear resistance and oil resistance, and is molded into a tubular shape. It should be noted that this elastic seal 5 is also configured so that it can be divided into two in the cylinder axis direction.

On the other hand, the upper part of the mounting ring 7 is pressed by annular pressing metal fittings 8 arranged at equal intervals in the circumferential direction of the split type container 2 to prevent it from coming off. A compression coil spring 9 is housed in the holding metal fitting 8 at equal intervals on the circumference, and the tip end portion 9a of the compression coil spring 9 presses the upper end portion 5b of the elastic seal toward the wire rope 3 side. ing. The mounting ring 7 is also configured so that it can be divided into two in the cylinder axis direction, and is fixed to the inner surface of the split container 2 by using a screw 8a.

Further, the elastic seal 5 is formed in a truncated conical shape from its central portion toward its end. Therefore, in the state where the elastic seal 5 is fixed to the flange portion 2c via the mounting ring 7, the inner surface of the central portion of the elastic seal 5 is slightly separated from the outer peripheral surface of the wire rope 3 to form a gap d. Since both ends have a diameter slightly smaller than the outer diameter of the wire rope 3, both ends 5b and 5c come into close contact with the wire rope 3.

On the other hand, when a large-diameter wire rope is to be lubricated, the split vertical joints at the ends 5b and 5c of the elastic seal 5 are slightly opened, and the inner surface of the central portion of the elastic seal 5 is the wire rope 3. It comes into direct contact with the outer peripheral surface.

Further, similarly to the above, the elastic seal 6 arranged below the lubricant supply chamber 4 has its projection 6a integrated with the mounting ring 7 and held in the engaging groove 2d of the flange 2c. The retainer 8 prevents the retainer from coming off. Further, the tip end portion 9a of the compression coil spring 9 housed in the holding metal fitting 8 presses the upper end portion 6b of the elastic seal 6 toward the wire rope 3 side.

The elastic seals 5 and 6 each have a sealing function, and in particular, the upper end 5b of the elastic seal 5 is
It also functions as a "trowel" for evenly applying grease to the wire rope 3.

A seal 10 for preventing the leakage of grease is provided below the elastic seal 6. This seal 10 is provided with a collar 2c via a mounting ring 7.
And the upper end 10a of the seal member 10 is pressed by the compression coil spring 9 toward the wire rope 3 side. However, this seal 10 is for surely preventing grease from leaking, is formed to be shorter than the elastic seals 5 and 6, and has no lower end portion.

Next, the operation of the lubricating device 1 having the above structure will be described.

When the pressurized grease is supplied into the lubricant supply chamber 4 through the grease injection hole 4a, the lubricant supply chamber 4 is filled with the grease and comes into contact with the outer peripheral surface of the wire rope 3 and its surface and its inside. Lubricate.

The filled grease further enters from the close contact portion between the lower end 5c of the elastic seal 5 and the wire rope 3 and moves between the elastic seal 5 and the wire rope 3.

The upper end 5b of the grease passing through the elastic seal 5 prevents the grease from being squeezed and excessively applied. At this time, the compression coil spring 9
Applies the pressing force required for the ironing to the upper end 5b.

On the other hand, the filled grease also moves to the elastic seal 6 side, but since the upper end 6b of the elastic seal 6 is pressed by the compression coil spring 9, the elastic seal 5
The amount of grease entering the elastic seal 6 from the contact portion with the wire rope 3 is smaller than that of the above. However, the grease may leak through the valleys of the strands in the wire rope 3. The grease that has passed through the elastic seal 6 through the valley is prevented from leaking by the seal 10 further arranged below the elastic seal 6.
Therefore, the devices and equipment arranged below the lubrication device 1 are not contaminated with grease.

Next, a lubrication system suitable for lubricating, for example, a dam gate opening / closing wire rope in which the wire rope 3 rarely moves will be described.

In the lubrication system shown in FIG.
Reference numeral 0 denotes a gate body of the dam gate, which is supported so as to be able to move up and down with respect to the gate wall 21. Body 22 above the gate
A hoisting device 23 is installed in the hoisting device 23.
The wire rope 24 hung from is hung on a pulley 25 provided at the upper end of the gate, and then fixed at its tip to the skeleton 22. Accordingly, when the wire rope 24 is wound or unwound by driving the hoisting device 23, the gate 20 moves up and down.

A lubricating device 1 is mounted on the suspended wire rope 24, and the lubricating device 1 includes a drive device 26.
It is designed to move up and down.

More specifically, the drive device 26 is mounted on the pulley 25 and is held by the wire rope 24 by a pair of holding fittings 27. A drive drum 28 driven by a motor (not shown) is provided inside the drive device 26.

The operating wire 29 is wound around the drive drum 28, one end of which is connected to the lower end of the lubricating device 1 and the other end of which is connected to the upper end of the lubricating device 1 via the pulley 30. Therefore, when the drive drum 28 is rotated in the forward and reverse directions by the motor, the operation wire 29 circulates clockwise or counterclockwise, and accordingly, the lubricating device 1 descends or rises using the wire rope 24 as a guide.

An encoder is incorporated in the motor, and the position of the lubricating device 1 can be identified by the pulse signal output from the encoder.

Although not shown, the drive unit 2
Limit switches are provided in the vicinity of 6 and the pulley 30, respectively, and when the lubricating device 1 reaches the lower limit or the upper limit, the limit switch operates to forcibly stop the motor.

The grease injection hole 4a of the lubrication device 1 is connected to the grease pump 32 through the flexible conduit 31 so that the grease stored in the tank 33 is supplied to the lubrication device 1 at high pressure. .

The conduit 31 and the grease pump 32 function as a lubricant pressure supply means.

Further, the lubricant supply chamber 4 of the lubricating device 1 is provided with a pressure sensor 34, and the pressure signal detected by this pressure sensor (pressure detecting means) 34 is given to a controller 35, and this controller 35 is provided. Controls the lifting operation of the lubricating device 1.

Next, the operation of the lubricating system having the above structure will be described.

First, the motor of the drive device 26 is driven to raise the lubricating device 1, and the lubricating device 1 is set at the refueling start position near the frame 22 above the gate.

Next, the grease pump 32 is driven to supply the pressurized grease to the lubricant supply chamber 4 of the lubricating device 1. When the pressure detected by the pressure sensor 34 reaches a predetermined value, it is considered that the lubricant supply chamber 4 is completely filled with grease, and the motor of the drive device 26 is driven.
At this time, the grease is lubricated on the surface and inside of the wire rope 3 by supplying the pressurized grease.

The operation wire 29 is driven by driving the motor.
When circulates clockwise, the lubricating device 1 descends from the set position. As a result, the grease supplied into the lubricant supply chamber 4 is sequentially applied to the wire rope 3 through the contact portion between the upper elastic seal 5 and the wire rope 3.

In this way, by lowering the lubricating device 1 from the set position at the upper end of the wire rope 24 to the oil supply end position near the pulley 25, the grease application work on the wire rope 24 is completed.

The lubricating device 1 has the wire rope 24
Since it is configured to be mounted on the wire rope to perform work, there is an advantage that lubrication can be performed even when there is no space for mounting the drive device 26 around the wire rope 24.

FIG. 3 shows a combination of the lubricating device 1 with coating thickness adjusting means and holding means.

In the figure, reference numeral 40 is an outer cylinder connected to the split type container 2, and is designed to combine the split parts 41, 41.

A through hole 41b for passing the wire rope 3 is formed at the center of the outer cylinder bottom plate 41a. An inner cylinder 42 is erected from the peripheral portion of the through hole 41b in the cylinder axis direction, and an elastic ring 43 as a holding means is provided on the inner cylinder upper portion 42a.

The elastic ring 43 is fixed to the inner cylinder upper portion 42a by engaging the protrusion 43a with the engaging groove 42b formed in the inner cylinder upper portion 42a, and the wire coil 3 side is fixed by the compression coil spring 44. Pin 4 biased by
It is located between 4a and the wire rope 3 and functions as a cushioning material, and holds the wire rope 3 on the central axis of the split container 2.

On the other hand, in the upper opening 41c of the outer cylinder 41,
A brush 45 as a coating thickness adjusting means is planted toward the center of the wire rope 3, and as shown in FIG. 4, the tip of the brush 45 can come into contact with the wire rope 3 along its cross-sectional shape. There is. Therefore, it is possible to scrape off the excess grease remaining in the strand valleys S of the wire rope 3 after applying the grease.

The grease scraped off by the brush 45 is the inclined surface 42 formed on the upper part 42a of the inner cylinder.
It falls along c and is stored in the grease storage portion (lubricant storage portion) 46 between the outer cylinder 41 and the inner cylinder 42.

As described above, by adding the coating thickness adjusting device 40, the grease remaining in the valleys of the strands of the wire rope 3 can be scraped off and the grease can be uniformly applied to the surface of the wire rope 3.

FIG. 5 shows another holding means.

In the figure, the holding means 50 are arranged at four positions on the inner wall 41d of the outer cylinder at equal intervals on the circumference, except for the abutting portion of the outer cylinder 41, and are fixed to the outer peripheral surface of the wire rope 3. It is designed to exert a pressing force.

Specifically, the base ends of the links 52 and 53 are pivotally supported by the brackets 51 and 51 fixed to the outer cylinder inner wall 41d at positions separated from each other via the pins 52a and 53a. The tip of 53 is connected by a connecting pin 54. A guide roller 55 for guiding the wire rope 3 is rotatably attached to the connecting pin 54. A tension coil spring 56 is installed on the links 52 and 53, and the pins 52a and 53a are also provided.
Can be moved up and down in the long holes formed in the brackets 51, 51.

Therefore, the roller 55 has a tension coil spring 56.
The urging force of (1) advances (in the direction of arrow B), and when an external force acts, the urging force moves backward (in the direction opposite to the direction of arrow B) against the urging force. Thereby, even if the diameter of the wire rope 3 is different, the wire rope 3 is always
Can be evenly pressed from the periphery thereof and held on the central axis of the lubricating device 1.

In the above embodiment, when the wire rope 3 can be held by the elastic seals 5, 6 and 10,
The holding means shown in FIG. 3 or 5 can be omitted. However, it is preferable to provide the brush 45.

Further, although the elastic seal of the present invention is arranged in one step above and below the grease injection hole in the above embodiment, the invention is not limited to this, and the number of steps is one or more, for example, two steps above and below the grease injection hole. It can also be provided. By providing a plurality of elastic seals in this manner, the amount of grease applied can be further limited to allow thin coating.

The lubricating apparatus of the present invention can be applied not only to lubrication of wire ropes for opening and closing dam gates but also for lubrication of other wire ropes such as cranes, elevators and ropeways.

Further, the lubricating device of the present invention is not limited to the vertical wire rope shown in the above embodiment, and can be applied to lubrication of a wire rope laid horizontally.

[0066]

As is apparent from the above description,
According to the present invention of claim 1, when the pressurized lubricant is supplied to the lubricant supply chamber, the lubricant is supplied from the surface to the inside by contacting the outer peripheral surface of the wire rope, and then along the wire rope. When it comes out of the lubricant supply chamber, it is configured to pass through the elastic seal that is in close contact with the outer surface of the wire rope, so the excess lubricant is squeezed and the lubricant is applied in an appropriate amount and evenly distributed. Applied to.

According to the present invention of claim 2, since the elastic seal is formed of a tubular member and is formed in a truncated conical shape from the central portion in the tubular axial direction toward the end portion, the outer circumference of the wire rope having different diameters is formed. The elastic seal can be firmly attached to the surface.

According to the present invention of claim 3, since the holding means for holding the wire rope on the central axis of the cylindrical hole is provided in the split container, the wire rope is always fed to the center of the lubricating device. Thus, the lubricant can be uniformly applied to the outer peripheral surface of the wire rope.

According to the fourth aspect of the present invention, the wire rope outlet of the split type container is provided with the application thickness adjusting means for adjusting the application thickness of the applied lubricant, so that the excessive application of the lubricant is prevented. can do.

According to the present invention of claim 5, the application thickness adjusting means is constituted by a brush for scraping off the lubricating oil remaining in the valleys of the strands in the cross section of the wire rope.
No excess lubricant remains in the strand valleys of the wire rope, and the entire outer peripheral surface of the wire rope can be uniformly lubricated.

According to the sixth aspect of the present invention, since the lubricant storage portion for storing the lubricant scraped off by the brush is provided in the split container, the surplus lubricant is leaked out of the split container. Can be lubricated without.

According to the present invention of claim 7, the wire rope can be lubricated by itself.

According to the present invention of claim 8, a pressure sensor for detecting the pressure in the lubricant supply chamber is provided in the lubrication system, and the drive means is driven when the detected pressure reaches a predetermined value. Since the lubricant can be supplied under a constant pressure, uneven lubrication can be prevented.

[Brief description of drawings]

FIG. 1 (a) is a front view showing a configuration of a wire rope lubrication device according to the present invention with partial cutouts, and FIG. 1 (b) is a bottom view thereof.

FIG. 2 is an explanatory diagram showing a configuration of a lubrication system according to the present invention.

FIG. 3 is a cross-sectional view showing configurations of a coating thickness adjusting unit and a holding unit according to the present invention.

FIG. 4 is a cross-sectional view illustrating the arrangement of brushes in the wire rope.

FIG. 5 is a vertical cross-sectional view showing the structure of another holding means according to the present invention.

FIG. 6 is a vertical cross-sectional view showing the configuration of a conventional lubricating device.

[Explanation of symbols]

1 Lubricator Two-part container 2a, 2b Half parts 2c Tsuba part 2d engagement groove 3 wire rope 4 Lubricant supply room 5,6 Elastic seal 5b Upper end 5c Lower end 7 Mounting ring 8 Presser bracket 9 Compression coil spring 10 seals

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenji Katagiri 3-20-4 Nishishinbashi, Minato-ku, Tokyo Tokyo Electric Service Co., Ltd. Civil Engineering Department (72) Inventor Hitoshi Kumata 3-20 Nishishinbashi, Minato-ku, Tokyo No. 4 Tokyo Denshi Service Co., Ltd. Civil engineering department (56) Reference JP-A-9-314011 (JP, A) JP-A-53-138748 (JP, A) Actually open 5-10387 (JP, U) Actually open A 61-83677 (JP, U) Actually developed 61-20597 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) D07B 1/00-9/00 B05C 1/00-21 / 00 B66C 13/00 B66B 7/12 F16J 15/32

Claims (8)

(57) [Claims] 1. A wire rope lubrication device having a cylindrical hole for inserting a wire rope in a split container and supplying a lubricant by pressurizing the wire rope sandwiched in the split container. A lubricant supply chamber that is provided in the split-type container and that makes pressurized lubricant contact with the peripheral surface of the wire rope, and wire ropes with different diameters that are arranged on both sides of the lubricant supply chamber in the wire rope insertion direction. Corresponding to, the inner wall formed in a truncated conical shape with the cylinder axis as the central axis so that it can adhere to the outer peripheral surface
A wire rope having an elastic seal having a surface and configured to apply the lubricant supplied to the lubricant supply chamber to the wire rope through the wire rope contact portion of the elastic seal. Lubrication device. 2. The wire rope lubrication device according to claim 1, wherein the elastic seal is made of a tubular member, and is formed in a truncated conical shape from the central portion in the tubular axial direction toward the end portion. 3. The wire rope lubrication device according to claim 1, wherein a holding means for holding the wire rope on the central axis of the cylindrical hole is provided in the split container. 4. The wire rope lubrication according to claim 1, wherein the wire rope outlet of the split container is provided with a coating thickness adjusting means for adjusting the coating thickness of the applied lubricant. apparatus. 5. The wire rope lubricating device according to claim 4 , wherein the coating thickness adjusting means is a brush that scrapes off the lubricating oil remaining in the valleys of the strands in the wire rope cross section. 6. The wire rope lubrication device according to claim 5, further comprising a lubricant storing portion for storing the lubricant scraped off by the brush in the split container. 7. The wire rope lubrication device according to claim 1, a lubricant pressurizing and supplying means for pressurizing and supplying a lubricant into a lubricant supplying chamber, and the split container is a wire. A wire rope lubrication system, comprising: a driving unit that moves along the rope. 8. The wire rope lubrication system according to claim 7, further comprising pressure detection means for detecting the pressure in the lubricant supply chamber, wherein the drive means is driven when the detected pressure reaches a predetermined value.