JP3072915U - Automatic lubricating bearing and automatic lubricating bearing device using the same - Google Patents

Abstract

(57) [Problem] To provide an automatic lubricating bearing and an automatic lubricating bearing device using the same, which facilitate processing and manufacturing and can store lubricating oil. A first diameter portion (R1) and a second diameter portion (R2) having an inner dimension larger than the first diameter portion (R1) are formed in a shaft hole (11) of a main body (10) of the automatic lubrication bearing (1). The main body 10 is formed so as to open adjacent to one or both edges. A plurality of automatic lubricating bearings can be stacked, whereby a space for storing lubricating oil is created by utilizing a dimensional difference that the inner diameter of the second diameter part R2 is larger than that of the first diameter part R1. I have.

Description

[Detailed description of the invention]

[0001]

[Field to which the invention belongs]

 The present invention relates to an automatic lubricating bearing and an automatic lubricating bearing device using the same, and more particularly to an automatic lubricating bearing which is very convenient in processing and production and can enhance the lubrication effect. is there.

[0002]

[Prior art]

 Conventionally, this type is as follows.

FIG. 7 is a sectional view illustrating an example of a conventional automatic lubricating bearing device. In the figure, an automatic lubricating bearing 91 is provided inside a case-shaped shaft tube 90 by an interference fit method, and the automatic lubricating bearing 91 has a shaft hole having a diameter R1 so as to rotatably support a central shaft 92 of the rotor. Are formed. Since the main body of the self-lubricating bearing 91 has relatively small pores, the lubricating oil is formed so as to naturally ooze out, whereby the rotation of the central shaft 92 becomes even smoother. In order to prolong the service life of the automatic lubricating bearing 91, an oil storage chamber 93 for storing lubricating oil is provided at the bottom of the shaft tube 90, and the inner peripheral wall of the intermediate portion of the shaft hole of the automatic lubricating bearing 91 is provided. Is configured such that a concave notch 94 having a diameter R2 is formed in a concave shape, and the oil storing effect can be partially exerted by the concave notch 94 as well.

FIG. 8 is a cross-sectional view illustrating another embodiment of the conventional automatic lubricating bearing device. An automatic lubricating bearing 91 is provided inside the shaft tube 90, and the automatic lubricating bearing 91 is provided with a shaft hole for rotatably supporting the central shaft 92 of the rotor. A continuous concave portion 95 having a diameter R2 is formed in the inner peripheral wall of the shaft hole having a diameter R1 of the automatic lubricating bearing 91, and the lubricating oil is circulated in the concave portion 95.

[0005]

[Problems to be solved by the invention]

 In the conventional automatic lubricating bearing described above, the main body of the automatic lubricating bearing is generally formed by casting, and a concave portion or the like for distributing the lubricating oil in the shaft hole is provided at an edge of the main body of the automatic lubricating bearing. It is sealed so as not to open. Therefore, it is difficult to integrally form such a concave notch by casting. Therefore, in practice, it is necessary to cast and mold the main body of the automatic lubricating bearing and then form the concave portion by cutting again, which makes the processing very troublesome and at the same time, the main body of the automatic lubricating bearing itself has a relatively large hardness. Therefore, there is a problem that forming by cutting becomes very difficult.

The present invention has been devised in view of such a problem, and a problem to be solved is to provide an automatic lubricating bearing which can be very easily processed and manufactured. Is what you do.

Another problem to be solved by the present invention is that the lubricating oil can be stored, the rotation of the rotating shaft can be made smooth, and the service life of the automatic lubricating bearing can be prolonged. It is an object of the present invention to provide an automatic lubricating bearing device capable of performing the above-described steps.

[0008]

[Means for Solving the Problems]

 In order to solve the above problems, an automatic lubricating bearing according to the present invention and an automatic lubricating bearing device using the same are as follows.

That is, the automatic lubricating bearing of the present invention and the automatic lubricating bearing device using the same have a shaft hole formed at the center of the automatic lubricating bearing main body so as to rotate and support the rotating shaft at a constant center line. The shaft hole has a first diameter portion and a second diameter portion having different inside dimensions passing through the rotation center line of the rotation shaft, the second diameter portion being formed larger than the first diameter portion and extending to one end of the main body. Or it is constituted so that it may open adjacent to the edge of both ends.

The automatic lubricating bearing of the present invention and the automatic lubricating bearing device using the same can also be configured as follows. 1. The first diameter portion is the diameter of the shaft hole. 2. A shaft hole adjacent to one or both edges of the self-lubricating bearing body is provided with an inner chamfer angle, and the inner chamfer angle portion becomes the second diameter portion. 3. One or more recessed portions are recessed in a shaft hole adjacent to one or both edges of the self-lubricating bearing body, and the recessed portion becomes the second diameter portion. 4. The concave notch penetrates the edges of both ends of the automatic lubricating bearing body. 5. The recessed portion is an annular recessed portion which is continuously recessed annularly around the shaft hole. 6. The concave notch is formed by an oblique concave notch that penetrates and opens at the edges of both ends of the automatic lubricating bearing. 7. An auto-refueling bearing body is provided with a positioning projection at one end edge, and a recessed hole corresponding to the projection at the other end edge, so that the auto-fueling bearing body can be stacked and fixed. . 8. A plurality of automatic lubricating bearings are provided, and a shaft hole is formed at the center of each automatic lubricating bearing body so as to rotate and support the rotation shaft at a constant center line, and the shaft hole passes through the rotation center line of the rotation shaft inside. A first diameter portion and a second diameter portion having different inner dimensions, wherein the second diameter portion is formed to be larger than the first diameter portion and is opened adjacent to one or both edges of the main body; A frame that covers the automatic lubricating bearings is provided, and the plurality of automatic lubricating bearings are held by a stop formed on the frame so as not to fall off. 9. One or more diagonal concave portions are formed in the shaft hole of the automatic lubricating bearing body, and the diagonal concave portions are formed so as to penetrate and open at both ends of the automatic lubricating bearing main body. At the edge of one end of the lubrication bearing main body, a projection for positioning is projected, and at the edge of the other end of the main body of the automatic lubrication bearing, a concave hole corresponding to the above-mentioned projection is recessed, and the automatic lubrication bearing is vertically stacked. Can be fixed. 10. Adjacent self-lubricating bearings are assembled so that the openings of the oblique concave notches formed in the main body are connected to each other. 11. At one end of the frame is formed an integrally formed stop, and after inserting a plurality of automatic lubrication bearings into the frame, the other stop formed by projecting the frame inward is provided. The oil bearing is held so as not to fall off. 12. A shaft hole having a first diameter portion is provided at a center of a main body of each of the automatic lubricating bearings so as to rotate and support the rotating shaft, and a shaft hole of at least one automatic lubricating bearing is provided. Is provided with a second diameter portion having an inner dimension larger than the first diameter portion, and the automatic lubrication bearing having the second diameter portion is sandwiched between the automatic lubrication bearings having the first diameter portion. A frame covering the plurality of automatic lubricating bearings is formed as described above, and the plurality of automatic lubricating bearings are held by a stopper provided on the frame so as not to fall off.

[0011]

[Example of the present invention]

 An embodiment of the present invention will be described below with reference to the drawings.

[0012]

FIG. 1 is a sectional view of an automatic lubricating bearing according to a first embodiment of the present invention. The automatic lubricating bearing 1 can be manufactured by various methods and materials. The main body 10 of the self-lubricating bearing 1 is formed in a regular circular annular piece, the outer peripheral surface of which has a circumference having the same outer diameter in the axial direction, and has a shaft hole at the center thereof so as to support the rotation shaft with a constant center axis. When the distance between the inner peripheral walls of the shaft hole 11, that is, the inner dimensions are measured at a plurality of different positions passing through the center line, the inner peripheral wall can measure the same numerical value. Of course, the shaft hole 11 is optimally made of a perfect circle. Thus, the first diameter portion R1 is the diameter of the shaft hole. An inner chamfer angle 12 is provided in the shaft hole 11 adjacent to one or both edges of the main body 10 of the self-lubricating bearing 1. Since the inner chamfer angle 12 is formed so as to open adjacent to the edge of the main body 10, at each position of the inner chamfer angle 12, two or more types of numerical values are measured as internal dimensions passing through the center line of the rotating shaft. The diameter of the portion adjacent to the edge of the main body 10 is larger than the inside diameter of the shaft hole.

[0013]

Second Embodiment FIG. 2 is a cross-sectional view of an automatic lubricating bearing according to a second embodiment of the present invention. A main body 20 of the automatic lubricating bearing 2 is formed substantially in the same manner as the automatic lubricating bearing of the first embodiment, and has the same structure. When the distance (internal dimension) between the inner peripheral walls of the shaft hole 21 is measured at a plurality of points passing through the center point, the inner peripheral wall has the same numerical value. Is the first diameter portion R1 from which the measurement can be made. The shaft hole 21 adjacent to one or both edges of the main body 20 of the automatic lubricating bearing 2 is provided with one or more concave notches 22 having an appropriate depth and shape. It is also possible to form an annular concave notch by continuously annularly recessing around the shaft hole (not shown). The concave notch 22 is formed so as to open adjacent to the edge of the main body 20. At the position of the concave notch 22, a second radial portion R2 capable of measuring two or more types of numerical values is formed. The diameter of the portion adjacent to the edge of the main body 20 is formed to be larger than the inside of the shaft hole.

[0014]

Third Embodiment FIG. 3 is a cross-sectional view of an automatic lubricating bearing according to a third embodiment of the present invention. And is formed in a concave notch 23 which is opened on both sides of the main body. At this time, a first diameter portion R1 is formed inside the shaft hole 21, and the concave portion 23 becomes a second diameter portion R2 larger than the first diameter portion.

[0015]

Fourth Embodiment FIG. 4 is a cross-sectional view of an automatic lubricating bearing according to a fourth embodiment of the present invention. An oblique concave notch 32 is formed in the shaft hole 31. A first diameter portion R <b> 1 and a second diameter portion R <b> 2 are formed in the main body 30 of the automatic lubricating bearing 3 by the oblique concave notch 32 and the shaft hole 31. At this time, when a plurality of automatic lubricating bearings 3 are stacked, the openings of the oblique concave notches 32 of the adjacent automatic lubricating bearings 3 are formed so as to be joined together and connected. The continuous oblique concave portion 32 forms a groove having a guiding effect such as a screw groove, so that the lubricating oil can flow more efficiently. Further, in order to fix the slanted concave portion 32 in a fixed positional relationship so as to have a guiding action like the above-mentioned screw groove, a protruding localization is provided at an edge of one end of the main body 30 of the automatic lubricating bearing 3. A protrusion 33 is provided on the other end, and a concave hole 34 is formed at the edge of the other end at a position corresponding to the protrusion 33. As described above, when the automatic lubrication bearings 3 are stacked, the oblique concave notches 32 can be fixed at positions corresponding to each other.

[0016]

Fifth Embodiment FIG. 5 is a cross-sectional view showing a fifth embodiment used in a state where a plurality of the above-described automatic lubricating bearings are assembled. The figure shows an automatic lubricating bearing device in which the automatic lubricating bearings 1 shown in FIG. 1 are stacked, and a plurality of automatic lubricating bearings 1 are covered with a frame 4 in a stacked state. The frame 4 is made of a material such as metal or plastic. Stops 41 are provided at both ends of the frame 4 so that the automatic lubricating bearing 1 can be held in the frame 4 by the stops 41. The stopper 41 can be formed integrally with one end of the frame 4, and the stopper 41 located at the other end of the frame 4 is provided so as to be bendable and can be protruded inward. 1 can be held so as not to fall off. Thus, by inserting the rotating shaft 5 into the shaft hole 11 formed by combining the plurality of automatic lubricating bearings 1, the rotating shaft 5 is rotatably supported by the automatic lubricating bearing device. At this time, a plurality of oil storage spaces are formed between the automatic oil bearing 1 and the rotating shaft 5 as shown in the figure. That is, since the shaft hole having the first diameter portion R1 and the second diameter portion R2 having different internal dimensions is formed in the automatic lubricating bearing 1, the difference between the two diameter portions makes it possible to store the oil between the surfaces of the rotary shaft 5. Is formed. By discharging the lubricating oil from the oil storage space when the rotating shaft 5 rotates, a smooth rotating effect can be provided by the rotating shaft 5 and the service life of the automatic lubricating bearing 1 can be extended. .

As can be seen from the above-described embodiment of the automatic lubricating bearing device, by inserting the above-described various different types of automatic lubricating bearings in a laminated state inside the frame 4, the concave recesses 22 and the oblique concave portions are formed. Regardless of whether or not the notches 32 are aligned, the rotating shaft can be smoothly rotated and the service life of the automatic lubricating bearing can be extended.

[0018]

Embodiment 6 FIG. 6 is a cross-sectional view showing another embodiment used in a state where a plurality of the self-lubricating bearings of the present invention are assembled. In the figure, automatic lubricating bearings 6A and 6B are stacked to form an automatic lubricating bearing device. The automatic lubricating bearing 6A has a first diameter portion R1, whereas the automatic lubricating bearing 6B has a first diameter. The rotating shaft 5 is rotatably supported by a shaft hole of an automatic lubricating bearing 6A having a first diameter portion R1. A space for storing lubricating oil is formed in a space adjacent to the automatic lubrication bearing 6B having the second diameter portion R2 and the automatic lubrication bearing 6A having the first diameter portion R1. Thus, the automatic lubricating bearing device can smoothly rotate the rotary shaft 5 and extend the service life of the automatic lubricating bearing.

[0019]

[Effect of the invention]

 The automatic lubricating bearing and the automatic lubricating bearing device using the same according to the present invention are configured as described above, and the first diameter portion and the second diameter portion provided in the shaft hole of the automatic lubrication bearing are the second diameter portion. Is formed so as to be larger than the first diameter portion and the second diameter portion is formed so that the diameter of the portion opened adjacent to the edge of the automatic lubricating bearing is larger than the inside diameter. When the main body of the lubricating bearing is formed, it can be formed by integral molding, thereby eliminating the need for an extra processing step and making it easy to manufacture. When an automatic lubricating bearing is used, the space created by the difference between the first and second diameters of the automatic lubricating bearing can be used as the lubricating oil storage space, thereby allowing the rotating shaft to rotate more smoothly. And the service life of the self-lubricating bearing can be extended.

The present invention may be embodied in other ways without departing from its spirit and essential characteristics. Accordingly, the preferred embodiments described herein are illustrative and not limiting.

[Brief description of the drawings]

FIG. 1 is a sectional view of an automatic lubricating bearing according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the self-lubricating bearing according to Embodiment 2 of the present invention.

FIG. 3 is a sectional view of an automatic lubricating bearing according to a third embodiment of the present invention.

FIG. 4 is a sectional view of an automatic lubricating bearing according to a fourth embodiment of the present invention.

FIG. 5 is a cross-sectional view of a fifth embodiment in which the embodiment of the present invention is used in an assembled state.

FIG. 6 is a sectional view of a sixth embodiment in which the embodiment of the present invention is assembled.

FIG. 7 is a sectional view showing one embodiment of a conventional bearing.

FIG. 8 is a sectional view showing another embodiment of the conventional bearing.

[Explanation of symbols]

 1, 2, 3, 6A, 6B Automatic lubricating bearing 10, 20, 30 Main body 11, 21, 31 Shaft hole 12 Chamfer angle 22, 23, 32 Concave notch 33 Positioning protrusion 34 Concave hole 4 Frame 41 Stopper 5 Rotation Shaft R1 First diameter part R2 Second diameter part

Claims (13)

[Utility model registration claims] 1. A shaft hole is formed at the center of a self-lubricating bearing body so as to rotatably support a rotating shaft at an invariable center line, and the shaft hole has a different inside dimension passing through the rotating center line of the rotating shaft therein. An automatic lubricating bearing having a diameter portion and a second diameter portion, wherein the second diameter portion is formed larger than the first diameter portion and is opened adjacent to one or both edges of the main body. 2. The self-lubricating bearing according to claim 1, wherein the first diameter portion is a diameter of a shaft hole. 3. A shaft hole adjacent to one or both edges of the self-lubricating bearing main body is provided with an inner chamfer angle, and the inner chamfer angle portion is formed to be the second diameter portion. The self-lubricating bearing according to claim 1, wherein: 4. A shaft hole adjacent to one or both edges of the self-lubricating bearing main body is formed with one or more concave portions, and the concave portions are formed so as to have the second diameter portion. The self-lubricating bearing according to claim 1, wherein: 5. The automatic lubricating bearing according to claim 4, wherein the concave notch is provided to penetrate and open at both ends of the main body of the automatic lubricating bearing. 6. The self-lubricating bearing according to claim 4, wherein said recessed portion is an annular recessed portion which is continuously recessed annularly around a shaft hole. 7. The automatic lubricating bearing according to claim 5, wherein the concave notch is obliquely concavely penetrating through the edges of both ends of the automatic lubricating bearing body. 8. An automatic lubricating bearing main body has a positioning projection projected from one edge thereof and a concave hole corresponding to the projection so that the automatic lubricating bearing can be stacked and fixed at the other edge. 8. The automatic lubricating bearing according to claim 7, wherein the lubrication is recessed. 9. A bearing having a plurality of self-lubricating shaft holes, wherein a bearing is formed at the center of the main body of each self-lubricating bearing so as to rotate and support the rotating shaft at an invariable center line. The inner diameter passing through the rotation center line has a first diameter portion and a second diameter portion different from each other, the second diameter portion is formed larger than the first diameter portion, and the edge of one or both ends of the automatic lubricating bearing body. A frame is provided that is adjacent to and opens to cover the plurality of automatic lubricating bearings, and the plurality of automatic lubricating bearings are held by stoppers formed on the frame so as not to fall off. Automatic lubricating bearing device characterized by the following. 10. An automatic lubricating bearing, wherein each shaft hole is formed with one or more slanted concave portions penetrating both ends of the bearing main body, and a localization projection protrudes from an edge of one end of the automatic lubricating bearing main body. The automatic lubricating bearing according to claim 9, wherein a concave hole corresponding to the protrusion is formed at an edge of the other end so that the automatic lubricating bearing can be vertically stacked and fixed. apparatus. 11. The automatic lubricating bearing device according to claim 10, wherein the openings of the oblique concave notches of adjacent automatic lubricating bearings are combined so as to be connected to each other. 12. An integrally formed stopper is formed at one end of the frame, and the other stopper is formed by inserting a plurality of self-lubricating bearings into the frame and then projecting the frame inward. The automatic lubricating bearing device according to claim 9, further comprising: 13. A self-lubricating bearing having a plurality of automatic lubricating bearings, wherein at least one automatic lubricating bearing is provided at the center of each of the automatic lubricating bearing bodies, the shaft hole having a first diameter portion for rotatably supporting a rotating shaft. The shaft hole is provided with a second diameter portion having an inner dimension larger than the first diameter portion, and the automatic lubrication bearing having the second diameter portion is located between the automatic lubrication bearings having the first diameter portion. A frame for covering the plurality of automatic lubricating bearings is formed so as to be sandwiched, and a stopper is provided on the frame for holding the plurality of automatic lubricating bearings so as not to fall off. Automatic lubricating bearing device.