JP2022015811A - Self-lubricating oil tank comprising oil chambers - Google Patents

Abstract

To provide a self-lubricating oil tank comprising a plurality of oil chambers.SOLUTION: The present invention is a self-lubricating oil tank comprising a plurality of oil chambers, which includes an oil tank, in which an upper oil chamber 23 and at least one lower oil chamber 24 are formed inside the oil tank, the bottom side of the upper oil chamber communicates with the lower oil chamber, and lubricant flows downward from the upper oil chamber and enters the lower oil chamber. Two oiling parts 30 are provided in the oil chamber. The upper oil chamber is placed in a slightly negative pressure state to increase the utilization rate of the lubricant, prevent the lubricant from staying for a long period of time, and improve the reliability of lubrication.SELECTED DRAWING: Figure 3

Description

The present invention relates to a lubrication device for a linear guideway, and more particularly to a disclosure of a novel structural form of a self-lubricating oil tank provided with a plurality of oil chambers.

The linear guideway is widely used in mechanical equipment as a linear guide mechanism. Sufficient lubrication is required to improve the accuracy and smoothness of the linear guideway. As a result, the linear guideway can operate smoothly and does not impair the service life.

A lubrication device having a dustproof effect, which is provided on a rail of a linear guideway and is connected to a slide block provided on the rail, is known.

The lubricator includes a tank, an oil level control plate, a dustproof coating plate and a tank cap. There is an oil tank that stores lubricating oil inside the tank, and two upright inverted U-shaped spaces are formed inside the tank, and each space is parallel to the front and back, and each space is sideways. Communicate through the communication hole. Of each of the spaces, one is an oil tank that stores lubricating oil, and a dust-proof coating plate is installed upright inside the other space, and an oil amount control plate is placed between the spaces. Installed in an upright position, the lubricating oil in the oil tank and the dustproof coating plate are separated by the oil amount control plate, the communication hole penetrates the oil amount control plate sideways, and the communication hole is Located near the center of the oil amount control plate, the lubricating oil in the oil tank flows sideways through the communication hole to the dustproof coating plate, and the oil amount control plate is the height of the communication hole. Now control the flow of lubricating oil. The tank cap is provided on the outside of the dustproof coating plate in an upright state and is connected to the tank.

In the lubricating device, the lubricating oil stored in the oil tank and the dust-proof coating plate are laterally separated by the oil amount control plate, and the lubricating oil is applied from the oil tank to the dust-proof coating through the communication hole. It is made to flow through a plate, the dust-proof coating plate is brought into contact with the rail, and lubricating oil is applied to the rail, and at the same time, dust and foreign matter on the rail surface are removed.

Lubricating oil flows sideways from the oil tank to the dustproof coating plate through the communication holes. When the slide block and the rail are not moving relative to each other, the lubricating oil is transferred from the dustproof coating plate to the rail even if the dustproof coating plate is stopped relative to the rail. As the oil continues to flow, the oil tank continues to replenish the lubricating oil to the dust-proof coating plate, so that unnecessary leakage of the lubricating oil occurs.

As the lubricating oil flows from the oil tank to the dustproof coating plate, the level of the lubricating oil in the oil tank gradually decreases. When the oil amount control plate installed upright separates the oil tank on both sides of the oil amount control plate and the dustproof coating plate sideways, and the lubricating oil level is lower than the communication hole, the relevant oil level is applicable. Since the lubricating oil cannot be obtained from the communication hole of the coating plate having a dustproof effect, it becomes difficult to fully utilize the lubricating oil in the oil tank. Even if the oil tank is replenished with lubricating oil, the lubricating oil level is raised higher than the communication hole, and the mechanism for supplying the lubricating oil to the dustproof coating plate is returned, it is still in the oil tank. Deterioration occurs when the lubricating oil in the portion stays in the oil tank for a long period of time, which affects the reliability of lubrication.

It is a main object of the present invention to provide a self-lubricating oil tank provided with a plurality of oil chambers, which is a new self-lubricating oil tank that enhances the reliability of lubrication.

Based on the above object, the feature of the technique for solving the problem of the present invention is that a self-lubricating oil tank provided with the plurality of oil chambers is provided on the rail of the linear guideway and connected to the slide block of the linear guideway. When the slide block and the rail move relative to each other, the self-lubricating oil tank lubricates the rail. The self-lubricating oil tank includes an oil tank and two lubrication parts. An upper oil chamber and at least one lower oil chamber for storing lubricating oil are formed inside the oil tank, and the lower oil chamber is installed under the upper oil chamber and at least on the bottom side of the upper oil chamber. One passage is installed, and the upper oil chamber communicates with the lower oil chamber by the passage, whereby the lubricating oil inside the upper oil chamber flows down through the passage and enters the lower oil chamber. .. The oil tank is provided with at least two through holes facing the surface of the rail, and each of the through holes communicates with the oil chamber.

Each of the lubricating parts is provided in the lower oil chamber and absorbs lubricating oil. Each of the relevant lubrication parts extends into each of the relevant through holes to form at least one coating portion, and each of the relevant lubrication parts applies lubricating oil to the rail by each of the relevant coating portions.

According to the present invention, the utilization rate of the lubricating oil is increased by putting the upper oil chamber in a slightly negative pressure state, and the lubricating oil is prevented from staying for a long period of time to improve the reliability of lubrication.

It is a three-dimensional drawing which illustrates that two preferable embodiments of this invention are installed in a linear guideway. It is a 3D figure of a preferable embodiment of this invention. It is a three-dimensional exploded view of a preferable embodiment of this invention. It is a front view of the state where the tank cap of a preferable embodiment of this invention is removed, and is shown in the state of having a lubricating oil.

As shown in FIG. 1, the self-lubricating oil tank provided with the plurality of oil chambers of the present invention is provided on the rail 12 of the linear guideway 1 and is connected to the slide block 14 of the linear guideway 1. As a result, when the slide block 14 and the rail 12 move relative to each other, the self-lubricating oil tank 2 lubricates the rail 12.

As shown in FIGS. 1 to 4, in this example, the self-lubricating oil tank 2 includes an oil tank 20 and two oiling parts 30, and the oil tank 20 mainly includes a tank body 21 and a tank cap. 22 is connected and configured. An upper oil chamber 23 and two lower oil chambers 24 for storing the lubricating oil 3 are formed inside the oil tank 20, and each of the lower oil chambers 24 is installed under the upper oil chamber 23. The oil chambers 24 face each other on the side surfaces, and two passages 25 are installed on the bottom side of the upper oil chamber 23, and the upper oil chambers 23 communicate with each of the lower oil chambers 24 up and down by each of the passages 25. As a result, the lubricating oil 3 inside the upper oil chamber 23 flows downward through each of the passages 25 and enters each of the lower oil chambers 24. The oil tank 20 is provided with at least two through holes 26 facing the surface of the rail 12, and each of the through holes 26 communicates with each of the oil chambers 24.

Further, the number of the sewage chambers 24 may be increased or decreased as necessary, but at least one of the sewage chambers 24 is required, and the number of the passages 25 is adjusted to the number of the sewage chambers 24. Although it may be changed, it is necessary to communicate with the upper oil chamber 23 by at least one passage 25 in each of the lower oil chambers 24.

Each of the oiling parts 30 is provided in each of the oil chambers 24 and absorbs the lubricating oil 3. Each of the lubrication parts 30 extends into each of the through holes 26 to form at least one coating portion 32, and each of the lubrication parts 30 is provided with lubricating oil 3 on the rail 12 by each of the coating portions 32. Apply. Each oiling component 30 may be composed of a high-density fiber body.

Two more stopper blocks 27 are further provided inside the upper oil chamber 23, and by making each of the stopper blocks 27 vertically adjacent to each of the passages 25, the lubricating oil 3 is moved from the upper oil chamber 23 to the lower portion. It delays the entry into the oil chamber 24 and the entry of air from each of the lower oil chambers 24 into the upper oil chamber 23. An oil feed component 40 is provided inside the oil feed chamber 23, the oil feed component 40 is adjacent to the inside of the oil feed chamber 23, and the oil feed component 40 is a stopper block 27 and each. It is between the passage 25 and the passage 25. Two in-row portions 42 are provided in the oil feeding component 40, and each of the in-row portions 42 is fitted into each of the passages 25, whereby the lubricating oil 3 of the upper oil chamber 23 is brought into the lower oil chamber 24. Gradually move to. The oil feeding component 40 may be made of a high-density fiber body.

An oil-impregnating structure 50 is further provided inside each of the lower oil chambers 24, and each of the oil-impregnating structures 50 is in contact with the side surface of each of the oil-coated parts 30, so that each of the oil-impregnating structures 50 receives the lubricating oil 3. It absorbs and supplies the lubricating oil 3 to each of the oiling parts 30. The oil-impregnated structure 50 may be composed of a high-density fiber body.

The number of the oil-impregnated structures 50 may be increased or decreased according to the number of the lower oil chambers 24. When the number of the oil-impregnated structures 50 is changed to one according to the number of the lower oil chambers 24, the specific shape of the oil-impregnated structure 50 is changed as necessary, and the oil-impregnated structure 50 is changed to each of the oil-impregnated parts 30. Touch the side of.

The oil tank 20 is provided with two lubrication holes 28 communicating with the upper oil chamber 23, and the upper oil chamber 23 communicates with the outside through each of the lubrication holes 28. Lubricating oil 3 is injected through any of the lubrication holes 28 or each lubrication hole 28. Each of the lubrication holes 28 is provided with a leak prevention plug 29 to close each of the lubrication holes 28. The number of the lubrication holes 28 may be increased or decreased as necessary, but at least one lubrication hole 28 is required, and the number of the leakage prevention plugs 29 is increased or decreased according to the number of the lubrication holes 28.

The lubricating oil 3 flows downward from the upper oil chamber 23 through the passage 25 and moves toward each of the lower oil chambers 24, and each of the lubricating parts 30 and each of the oil-impregnated structures 50 absorbs the lubricating oil 3. do. When the lubricating oil 3 moves toward each of the lower oil chambers 24, air enters the upper oil chamber 23 through the passage 25. When the slide block 14 and the rail 12 are not relatively moving, each of the oiling parts 30 is in a state of being relatively stopped with respect to the rail 12. External air cannot enter the oil chamber 23 without passing through each of the oiling parts 30 and each of the passages 25, and each stopper block 27 and each of the passages 25 are configured to be adjacent to each other vertically. Due to the space, each of the stopper blocks 27 hinders the upward movement of the air trying to enter the upper oil chamber 23, and changes the moving direction of the air. Further, since the speed at which the lubricating oil 3 enters each of the lower oil chambers 24 from the upper oil chamber 23 and the speed at which air enters the upper oil chamber 23 from each of the lower oil chambers 24 are also delayed, the upper oil chamber 23 has. A slight negative pressure is reached, and the lubricating oil 3 in the upper oil chamber 23 is gradually moved to the oiling component 30. As a result, the amount of oil discharged from the oiling component 30 is extremely reduced, and the utilization rate of the lubricating oil 3 when the slide block 14 and the rail 12 are not relatively moving is increased.

Further, in the present embodiment, the lubricating oil 3 in the upper oil chamber 23 is absorbed by the oil feeding component 40, and each inlay portion 42 of the oil feeding component 40 is fitted into each of the passages 25. When the lubricating oil 3 is moved toward each of the lower oil chambers 24 by the oil feed parts 40, the external air must pass through the oil coating parts 30 and the oil feed parts 40 or the upper oil chamber 23. When the lubricating oil 3 and the air flow between the upper oil chamber 23 and the lower oil chamber 24 due to the inability to enter, the lubricating oil 3 and the air are passed through the oil feeding component 40, and the air is passed. Further delays the speed of entering the oil chamber 23. Further, the utilization rate of the lubricating oil 3 when the slide block 14 and the rail 12 are not relatively moving is further increased. Moreover, when the oil feeding component 40 is composed of a high-density fiber body, the lubricating oil 3 and air must pass through a gap between the overlapping fibrous structures of the oil feeding component 40, so that the lubricating oil 3 and The distance through which air flows between the oil chamber 23 and the oil chamber 24 is increased, and the speed at which the air enters the oil chamber 23 and the speed at which the lubricating oil 3 enters each oil chamber 24 are significantly delayed. can.

When the slide block 14 and the rail 12 change from the relative stop state to the relative moving state, the lubricating oil 3 contained in each of the oiling parts 30 is applied to the rail 12 by the coating unit 32, and the coating is applied. The degree of saturation of the lubricating oil 3 contained in the oil component 30 is reduced to a relatively large extent in a short time. At this time, in addition to the oil feeding parts 40 sending the lubricating oil 3 in the upper oil chamber 23 to each of the lower oil chambers 24, each of the oil-impregnated structures 50 is more oily than the oiling parts 30. Since the degree of saturation is high, each of the oil-containing structures 50 can immediately replenish the lubricating oil 3 to each of the parts 30 for lubrication whose degree of saturation has decreased, and the effectiveness and reliability of lubrication can be maintained.

As the lubricating oil 3 flows from the upper oil chamber 23 to each of the lower oil chambers 24, the liquid level of the lubricating oil 3 in the upper oil chamber 23 gradually decreases. Each of the oil chambers 24 is installed under the oil chamber 23, and each passage 25 communicating the oil chamber 23 with the oil chamber 24 is the bottom of the oil chamber 23. On the side. Therefore, there is no problem that the lubricating oil 3 does not flow into each of the lower oil chambers 24 and remains inside the upper oil chamber 23, and before the lubricating oil 3 in the upper oil chamber 23 is used up, the upper oil chamber is first used. Even if the lubricating oil 3 is replenished to 23, the lubricating oil 3 already in the upper oil chamber 23 is in the space at the bottom of the upper oil chamber 23, and the newly added lubricating oil 3 is on the existing lubricating oil 3. Therefore, it is possible to prevent the lubricating oil 3 in the portion inside the upper oil chamber 23 from staying for a long period of time, and improve the reliability of lubrication.

1 Linear guideway 12 Rail 14 Slide block 2 Self-lubricating oil tank 20 Oil tank 21 Tank body 22 Tank cap 23 Upper oil chamber 24 Lower oil chamber 25 Passage 26 Through hole 27 Stopper block 28 Lubrication hole 29 Leakage prevention plug 30 Lubrication Parts 32 Coating part 40 Oil feeding parts 42 Inlay part 50 Oil-impregnated structure 3 Lubricating oil

Claims (6)

A self-lubricating oil tank provided with a plurality of oil chambers, wherein the self-lubricating oil tank is provided on a rail of a linear guideway and connected to a slide block of the linear guideway, whereby the slide block and the rail are attached. When moving relative to each other, the self-lubricating oil tank lubricates the rails.
The self-lubricating oil tank includes an oil tank and two oiling parts.
An upper oil chamber and at least one lower oil chamber for storing lubricating oil are formed inside the oil tank, and the lower oil chamber is installed under the upper oil chamber and at least on the bottom side of the upper oil chamber. One passage is installed, and the upper oil chamber communicates with the lower oil chamber by the passage, whereby the lubricating oil inside the upper oil chamber flows downward through the passage and enters the lower oil chamber. ,
The oil tank is provided with at least two through holes facing the surface of the rail, and each of the through holes communicates with the lower oil chamber.
Each of the lubrication parts is provided in the lower oil chamber to absorb lubricating oil, and each of the lubrication parts extends into each of the through holes to form at least one coating portion, and each of the lubrication parts is formed. Each of the parts is a self-lubricating oil tank characterized in that lubricating oil is applied to the rail by each of the coating portions. At least one stopper block is provided inside the upper oil chamber in accordance with the passage, and by making the stopper block vertically adjacent to the passage, lubricating oil enters the lower oil chamber from the upper oil chamber. The self-lubricating oil tank comprising the plurality of oil chambers according to claim 1, which delays the entry of air from the lower oil chamber into the upper oil chamber. An oil feed component is provided inside the oil feed chamber, the oil feed component is adjacent to the inside of the oil feed chamber, and the oil feed component is located between the stopper block and the passage. At least one in-row portion is provided in the oil feeding component in accordance with the passage, and by fitting the in-row portion into the passage, the lubricating oil in the upper oil chamber is gradually moved to the lower oil chamber. , A self-lubricating oil tank provided with the plurality of oil chambers according to claim 2. At least one oil-impregnating structure is provided inside the lower oil chamber, and by contacting the oil-impregnating structure with the side surface of each of the oil-impregnating parts, the oil-impregnating structure absorbs lubricating oil and becomes each of the oil-impregnating parts. The self-lubricating oil tank provided with the plurality of oil chambers according to claim 1, 2 or 3 for supplying lubricating oil. The oil tank is provided with at least one lubrication hole communicating with the upper oil chamber, the upper oil chamber communicates with the outside through the lubrication hole, and lubricating oil is injected into the upper oil chamber through the lubrication hole. The self-lubricating oil tank provided with the plurality of oil chambers according to claim 1, wherein the lubrication hole is provided with a leak prevention plug and the lubrication hole is closed. The self-lubricating oil tank provided with a plurality of oil chambers according to claim 1, wherein the oil tank is mainly configured by connecting a tank body and a tank cap.

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