JP3098749U - Washer with oil storage - Google Patents

Abstract

A plurality of oil storage units are provided around a shaft hole of a washer, the oil storage units are installed on an inner surface of the washer, and lubricating oil that has flowed down along the surface of the rotating shaft by the oil storage unit is disposed on an end surface of a sleeve bearing. The present invention provides a washer having an oil storage portion in which lubricating oil is accumulated between an inner surface of a washer and an end surface of a sleeve bearing to form an oil storage layer.
An oil storage washer (10) includes a shaft hole (11) and a plurality of oil storage parts (12), and the oil storage part is installed on the inner surface of the oil storage washer and arranged around the shaft hole (11). Have been.
[Selection] Figure 2

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a washer having an oil storage section, and is particularly applied to an end face of a sleeve bearing to store lubricating oil by the oil storage section, thereby improving the rotation efficiency of a rotary shaft fitted inside the sleeve bearing. The present invention relates to a washer having a possible oil storage section.
[0002]
[Prior art]
Conventionally, this type is as follows.
[0003]
The conventional washer design is to install the washers at both ends of the oil-impregnated bearing to avoid direct contact of the fan wheel and other fan components with the oil-impregnated bearing, thereby reducing the friction created between them. Therefore, some conventional washers have only a single function of preventing friction between the oil-impregnated bearing and other members of the fan.
[0004]
Also, as a conventional washer structure, a thrust washer is provided on the shaft at a position away from both ends of the sleeve bearing, and a thrust washer which is a shaft locking part, and the rotor shaft is rotated by magnetic attraction during normal rotation. In the case of an abnormality such as when external force is applied to the rotor 11 in the shaft direction, the movement of each thrust washer is prevented by the end face of the sleeve bearing, whereby the shaft is returned to its original position. Position, and a thrust washer is provided at a position distant from both end faces of the sleeve bearing, so that noise caused by the end of the sleeve bearing can be prevented. (See, for example, Patent Document 1).
[0005]
[Patent Document 1]
Japanese Unexamined Patent Publication No. 60-148366
[Problems to be solved by the invention]
In the structure of the conventional washer as described above, since the conventional washer is formed so as to be rotated by the interlocking of the rotating shaft, constant friction still occurs between the conventional washer and the end surface of the oil-impregnated bearing. As a result, there is a problem that the friction between the conventional washer and the end face of the oil-impregnated bearing must be reduced.
[0007]
In addition, in general oil-impregnated bearings, as the operating time increases, the lubricating oil inside the oil naturally flows off gradually, or the lubricating oil runs off due to the rotation of the rotating shaft inside the oil-impregnated bearing, causing the oil-impregnated oil to flow out. Since the lubricating oil inside the bearing is also reduced, the rotation efficiency of the rotating shaft fitted inside the oil-impregnated bearing is relatively deteriorated. Regarding the loss of the lubricating oil inside the oil-impregnated bearing, since the loss at the end face of the oil-impregnated bearing is the most severe, there is a problem that it is necessary to add a member on the end face of the oil-impregnated bearing to reduce the decrease in lubricating oil. there were.
[0008]
Furthermore, in order to reduce the flow of the lubricating oil on the end surface of the oil-impregnated bearing, a circulation system is generally adopted.The lubricating method described above allows the lubricating oil outside the oil-impregnated bearing to be guided to the inside through the guide groove. It is formed. However, lubricating oil that has flowed into the oil-impregnated bearing must be stored for a while at the end face of the oil-impregnated bearing, thereby reducing the friction between the washer and the end face of the oil-impregnated bearing while reducing the oil flow. it can. For example, it is inevitable that the oil reservoir formed between the washer and the end surface of the oil-impregnated bearing will reduce the friction between each other, and furthermore, the frictional area between the washer and the end surface of the oil-impregnated bearing will be reduced due to the reduced contact area. It is inevitable that the number will decrease.
[0009]
Also, in the structure of the conventional washer as described above, the lubricating oil inside the sleeve bearing naturally flows off gradually as the operating time increases, or the sleeve bearing lubricates due to rotation of the shaft inside the sleeve bearing. When the oil is lost, the lubricating oil inside the sleeve bearing is also reduced, so that the rotational efficiency of the shaft fitted inside the sleeve bearing is relatively deteriorated.
[0010]
The present invention was devised in view of such a problem, and a purpose thereof is to provide a plurality of oil storage units around a shaft hole of a washer, and the oil storage unit is provided on an inner surface of the washer. Since the lubricating oil that has been installed and has flowed down along the surface of the rotating shaft by the oil storage part can collect on the end face of the sleeve bearing, the lubricating oil collects between the inner surface of the washer and the end face of the sleeve bearing, and the oil reservoir It is an object of the present invention to provide a washer having an oil storage portion in which a is formed.
[0011]
A first object of the present invention is to provide a plurality of oil storage units around the shaft hole, the oil storage units being installed on the inner surface of the oil storage washer, and a space between the inner surface of the oil storage washer and the end surface of the sleeve bearing. It is an object of the present invention to provide a washer having an oil storage portion capable of reducing friction between a sleeve bearing and members inside a motor by reducing an area of contact.
[0012]
A second object of the present invention is to provide a plurality of oil storage units around the shaft hole, the oil storage units are installed on the inner surface of the oil storage washer, and the lubricating oil that has flowed off along the surface of the rotating shaft is used as the oil storage unit. The lubricating oil is collected between the inner surface of the oil storage washer and the end surface of the sleeve bearing by forming the oil reservoir between the inner surface of the oil storage washer and the end surface of the sleeve bearing. It is an object to provide a washer having an oil storage unit.
[0013]
[Means for Solving the Problems]
To achieve the above object, a washer having an oil storage unit according to the present invention is as follows. That is,
An oil storage washer installed at one end of a sleeve bearing and having an oil storage portion having an outer surface and an inner surface formed therein, wherein the oil storage washer includes a shaft hole and at least one oil storage portion. The shaft hole is formed so as to penetrate between the outer surface and the inner surface of the oil storage washer, and the shaft hole is used for fitting the rotating shaft. At least one oil storage part is installed on the inner surface of the oil storage washer, and the oil storage part is arranged around the shaft hole. When the rotating shaft is rotated, the lubricating oil inside the sleeve bearing is formed to flow into and accumulate in the oil storage portion of the oil storage washer, thereby reducing friction between the sleeve bearing and the motor member.
[0014]
The washer having the oil storage unit according to the present invention is provided with an oil seal, and an oil storage washer may be installed between the end face of the sleeve bearing and the oil seal. The oil storage washer also includes an auxiliary washer, and the auxiliary washer can also reduce friction between the oil storage washer and a member of the motor. Further, the oil storage washer may be formed of a pair of washers, and when both are stacked correspondingly, the oil storage part of the oil storage washer may be formed to correspond to the oil storage part of the other oil storage washer. Further, the oil storage portion of the oil storage washer may be formed by a concave hole. Further, the oil storage part of the oil storage washer may be formed of an annular groove. Also, the oil storage part of the oil storage washer may be formed of a groove. Further, the groove may be formed as a rectangular groove. Further, the groove may be formed as an arc-shaped groove. Further, the groove may be a curved groove. Further, the groove may be formed so as to surround the periphery of the shaft hole, and may be formed to extend to the periphery of the shaft hole.
[0015]
[Embodiment of the invention]
An embodiment of the present invention will be described below with reference to the drawings.
[0016]
Embodiment 1
FIG. 1 is an exploded perspective view of a washer having an oil storage portion and a motor member according to a first embodiment of the present invention, FIG. 2 is a perspective view of a washer having an oil storage portion of the first embodiment of the present invention, and FIG. FIG. 4 is a cross-sectional view of an assembled state of a washer having an oil storage unit according to the first embodiment of the present invention, and FIG.
[0017]
Referring to FIGS. 1 and 2, an oil storage washer 10 having an oil storage part according to a first embodiment of the present invention is formed as a round piece having a constant thickness. The oil storage washer 10 is installed on an end face of the sleeve bearing 20, and another oil seal 22 is installed on the sleeve bearing 20, and the oil storage washer 10 is placed between the end face of the sleeve bearing 20 and the oil seal 22. The rotating shaft 30 penetrates through the oil seal 22, the oil storage washer 10 and the sleeve bearing 20 according to the order, and the bearing device of the motor 1 is assembled.
[0018]
Referring again to FIG. 2, the oil storage washer 10 includes a shaft hole 11 and a plurality of oil storage units 12, and the shaft hole 11 is formed to penetrate the outer surface and the inner surface of the oil storage washer 10. The oil storage portion 12 is formed of a concave hole, is installed on the inner surface of the oil storage washer 10, and is installed around the shaft hole 11.
[0019]
Referring to FIGS. 3 and 4, the outer surface of the oil storage washer 10 is defined as a surface adjacent to the oil seal 22, and the inner surface of the oil storage washer 10 is defined as a surface adjacent to the end face of the sleeve bearing 20. The oil storage portion 12 is arranged around the shaft hole 11, and the lubricating oil that has flowed down along the surface of the rotating shaft 30 by the oil storage portion 12 can be formed so as to collect on the end surface of the sleeve bearing 20. Lubricating oil is accumulated between the inner surface of the sleeve 10 and the end face of the sleeve bearing 20 to form an oil storage layer. The sleeve bearing 20 is provided with another circulation path 21 so that the lubricating oil accumulated in the oil storage section 12 is circulated.
[0020]
Referring again to FIG. 4, the oil storage washer 10 is placed between the end face of the sleeve bearing 20 and the oil seal 22. When the rotating shaft 30 rotates, the lubricating oil inside the sleeve bearing 20 flows out along the surface of the rotating shaft 30. At this time, a part of the lubricating oil that has flowed off flows between the inner surface of the oil storage washer 10 and the end surface of the sleeve bearing 20 and is formed so as to collect in the oil storage part 12 of the oil storage washer 10. Oil buoyancy is generated between the end face of the sleeve bearing 20 and the accumulation of the lubricating oil. In addition, the installation of the oil storage section 12 reduces the area of contact between the inner surface of the oil storage washer 10 and the end surface of the sleeve bearing 20. Lubricating oil accumulates between the inner surface of the oil storage washer 10 and the end face of the sleeve bearing 20, and the area of contact can be reduced. Rotation efficiency can be increased.
[0021]
Examples 2, 3, 4, 5
FIG. 5 is a perspective view of a washer having an oil storage unit according to the second embodiment of the present invention, FIG. 6 is a perspective view of a washer having an oil storage unit of the third embodiment of the present invention, and FIG. FIG. 8 is a perspective view of a washer having an oil storage unit according to a fifth embodiment of the present invention.
[0022]
5, 6, 7, and 8, the structure of the washer having the oil storage portion according to the second, third, fourth, and fifth embodiments of the present invention is installed to correspond to the first embodiment. In the second, third, fourth, and fifth embodiments of the present invention, the same structures as those of the first embodiment are denoted by the same reference numerals to facilitate understanding of the difference. Since the technical contents of some of the second, third, fourth and fifth embodiments are described in the description of the first embodiment, they will not be described again in detail for reference.
[0023]
Referring again to FIG. 5, the oil storage washer 10 ′ having the oil storage part according to the second embodiment of the present invention includes a shaft hole 11 ′ and an oil storage part 12 ′, and the shaft hole 11 ′ is connected to the outer surface of the oil storage washer 10 ′. It is formed so as to penetrate the inner surface. The oil storage portion 12 'is formed of an annular groove. The annular groove is installed on the inner surface of the oil storage washer 10' and is installed so as to surround the shaft hole 11 '.
[0024]
Referring again to FIGS. 6, 7, and 8, the oil storage washer 10 "having the oil storage portion according to the third, fourth, and fifth embodiments of the present invention includes a shaft hole 11" and a plurality of oil storage portions 12 ". 11 "is formed so as to penetrate the outer surface and the inner surface of the oil storage washer 10". The oil storage portion 12 'is formed of a groove, and the groove is provided on the inner surface of the oil storage washer 10 ", and the groove is formed as a shaft hole. It is formed so as to surround the periphery of 11 "and extends to the periphery of the shaft hole 11". The grooves can consist of rectangular grooves (see FIG. 6), or can consist of arc-shaped grooves (see FIG. 7), or can consist of curved grooves (see FIG. 8).
[0025]
Embodiments 6 and 7
FIG. 9 is a sectional view of the assembled state of the local part by the washer having the oil storage part according to the sixth embodiment of the present invention, and FIG. 10 is the assembled state of the local part by the washer having the oil storage part of the seventh embodiment of the present invention. It is sectional drawing.
[0026]
Referring to FIGS. 9 and 10, the structure of the washer having the oil storage portion according to the sixth and seventh embodiments of the present invention is installed so as to correspond to the first embodiment. In the sixth and seventh embodiments of the present invention, the same structures as those in the first embodiment are denoted by the same reference numerals. Since the technical contents of a part of the sixth and seventh embodiments are described in the description of the first embodiment, they will not be described again in detail for reference.
[0027]
Referring again to FIG. 9, the auxiliary storage washer 13 is included in the oil storage washer 10 having the oil storage unit according to the sixth embodiment of the present invention. The oil storage washer 10 and the auxiliary washer 13 are placed between the end face of the sleeve bearing 20 and the oil seal 22. The friction between the oil storage washer 10 and members of the motor 1 can be reduced by the auxiliary washer 13. At this time, the lost lubricating oil flows between the oil storage washer 10 and the auxiliary washer 13 and is formed so as to collect in the oil storage part 12 of the oil storage washer 10. Oil buoyancy is generated between the oil storage washer 10 and the auxiliary washer 13 and between the oil storage washer 10 and members of the motor 1 due to accumulation of lubricating oil.
[0028]
Referring again to FIG. 10, the oil storage washer 10 having the oil storage unit according to the seventh embodiment of the present invention includes a pair of oil storage washers 10, and when both are stacked so as to correspond to each other, the oil storage unit 12 of the oil storage washer 10 becomes the other. The oil storage washer 10 is formed so as to correspond to the oil storage part 12. At this time, the lost lubricating oil flows between the oil storage washers 10 and is formed so as to collect in the oil storage portion 12 of the oil storage washers 10. Therefore, between the oil storage washers 10 and the end face of the sleeve bearing 20, and further, the oil storage washers 10. Oil buoyancy is generated between the motor and members of the motor 1 due to accumulation of lubricating oil.
[0029]
[Effect of the invention]
According to the washer having the oil storage part of the present invention, a plurality of oil storage parts are installed around the shaft hole, the oil storage part is installed on the inner surface of the oil storage washer, and the inner surface of the oil storage washer and the end face of the sleeve bearing. Has the advantage that the friction between the sleeve bearing and the components inside the motor can be reduced.
[0030]
According to the washer having the oil storage portion of the present invention, a plurality of oil storage portions are installed around the shaft hole, and the oil storage portion is installed on the inner surface of the oil storage washer, and the lubricating oil that has flowed down along the surface of the rotating shaft. Is lubricated by the oil storage section and accumulated on the end face of the sleeve bearing, so that lubricating oil is accumulated between the inner surface of the oil storage washer and the end face of the sleeve bearing to form an oil storage layer, thereby increasing the degree of lubrication. There is an advantage that can be.
[0031]
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 an exploded perspective view of a washer and a motor member having an oil storage unit according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the washer having an oil storage unit according to the first embodiment of the present invention.
FIG. 3 is a sectional view of the first embodiment of the present invention in an assembled state with a washer having an oil storage unit.
FIG. 4 is a partially enlarged view of a washer having an oil storage unit according to the first embodiment of the present invention.
FIG. 5 is a perspective view of a washer having an oil storage unit according to a second embodiment of the present invention.
FIG. 6 is a perspective view of a washer having an oil storage unit according to a third embodiment of the present invention.
FIG. 7 is a perspective view of a washer having an oil reservoir according to a fourth embodiment of the present invention.
FIG. 8 is a perspective view of a washer having an oil storage unit according to a fifth embodiment of the present invention.
FIG. 9 is a cross-sectional view showing a state where a local part is assembled by a washer having an oil storage part according to a sixth embodiment of the present invention;
FIG. 10 is a cross-sectional view illustrating a state where a local part is assembled by a washer having an oil storage part according to a seventh embodiment of the present invention;
[Explanation of symbols]
Reference Signs List 1 motor 10 oil storage washer 10 'oil storage washer 10 "oil storage washer 11 shaft hole 11' shaft hole 11" shaft hole 12 oil storage unit 12 'oil storage unit 12 "oil storage unit 13 auxiliary washer 20 sleeve bearing 21 circulation path 22 oil seal 30 rotary shaft

Claims (11)

An oil storage washer (10) installed at one end of a sleeve bearing (20) and having an oil storage portion having an outer surface and an inner surface formed therein. The oil storage washer (10) has a shaft hole (11) and at least one oil storage washer. The oil hole (11) is included, the shaft hole (11) is formed so as to penetrate between the outer surface and the inner surface of the oil storage washer (10), and the shaft hole (11) is connected to the rotating shaft (30). And at least one oil storage section (12) is installed on the inner surface of the oil storage washer (10), and the oil storage section (12) is installed around the shaft hole (11); When the rotating shaft (30) is rotated, the lubricating oil inside the sleeve bearing (20) is formed so as to flow into and accumulate in the oil storage section (12) of the oil storage washer (10). And Mo Washer with oil storage portion, characterized in that it is possible to reduce the friction between the members of chromatography (1). The oil storage unit according to claim 1, wherein an oil seal (22) is further provided, and an oil storage washer (10) is installed between an end surface of the sleeve bearing (20) and the oil seal (22). Having washer. The oil storage washer (10) further includes an auxiliary washer (13), and the auxiliary washer (13) can reduce friction between the oil storage washer (10) and members of the motor (1). A washer having the oil storage section according to claim 1. The oil storage washer (10) comprises a pair of washers, and when both are stacked so as to correspond, the oil storage part (12) of the oil storage washer (10) corresponds to the oil storage part (12) of the other oil storage washer (10). The washer having an oil storage portion according to claim 1, wherein the washer is formed so as to perform the following operations. The washer having an oil storage section according to claim 1, wherein the oil storage section (12) of the oil storage washer (10) comprises a concave hole. The washer having an oil storage section according to claim 1, wherein the oil storage section (12 ') of the oil storage washer (10') comprises an annular groove. The washer (10 ") according to claim 1, wherein the oil storage portion (12") of the oil storage washer (10 ") comprises a groove. The washer according to claim 7, wherein the groove comprises a rectangular groove. The washer according to claim 7, wherein the groove is an arc-shaped groove. The washer according to claim 7, wherein the groove comprises a curved groove. The oil reservoir according to claim 7, wherein the groove is formed so as to surround the periphery of the shaft hole (11 ") and extends to the periphery of the shaft hole (11"). Washers.

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