CN109555785B - Ball bearing and collar - Google Patents
Ball bearing and collar Download PDFInfo
- Publication number
- CN109555785B CN109555785B CN201811203113.6A CN201811203113A CN109555785B CN 109555785 B CN109555785 B CN 109555785B CN 201811203113 A CN201811203113 A CN 201811203113A CN 109555785 B CN109555785 B CN 109555785B
- Authority
- CN
- China
- Prior art keywords
- air gap
- ball bearing
- outer ring
- ball
- collar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/762—Sealings of ball or roller bearings by means of a fluid
Abstract
The invention discloses a ball bearing and a lantern ring, wherein two lantern rings are arranged on two sides of a ball part along the axis direction, the ball part is formed by a ball outer ring part and a ball inner ring part which sandwich a plurality of balls, the lantern ring is formed by a lantern ring inner ring part and a lantern ring outer ring part, an air gap channel is formed between the lantern ring inner ring part and the lantern ring outer ring part, the ball inner ring part and the lantern ring inner ring part are both sleeved on a rotating shaft, the lantern ring outer ring part is connected with the ball outer ring part, the lantern ring outer ring part is provided with an outer ring air passage, the outer ring air passage is communicated with an air gap channel, and the position of the air gap channel, which. Therefore, the air pressure formed by injecting air from the outer annular air passage to the air gap channel can block lubricating oil gas outside the air gap channel and the first turning structure, so that the lubricating oil gas is prevented from leaking.
Description
Technical Field
The present invention relates to a ball bearing and a retainer ring, and more particularly to a gas seal retainer ring used in a ball bearing.
Background
The basic structure of the ball bearing is to sandwich a plurality of balls between an outer ring and an inner ring, the inner ring is sleeved on the rotating shaft, the outer ring is connected with an external structure, wherein one of the two groups of components of the inner ring and the rotating shaft and the outer ring and the external structure is a rotating component, and the other group is a non-rotating component, so that the combination can enable the rotating shaft to rotate in the external structure.
The purpose of the balls is to reduce friction between the rotating and non-rotating parts, which is wear and heat generation, and to reduce friction between the balls and the rotating or non-rotating parts, lubricating oil or oil gas is generally injected to improve the friction problem.
Even if the lubricant is injected, the lubricant is easily changed into lubricant oil gas in the operation process of the ball bearing component, however, an air gap is formed between the rotating component and the non-rotating component, especially the air gaps on the two outer sides of the ball bearing component, so that the lubricant oil gas in the ball bearing component is dissipated out of the ball bearing component, which not only wastes the lubricant oil, but also causes pollution, and not only the ball bearing component is damaged due to the loss of the lubricant oil, but also the machine where the ball bearing component is polluted by the lubricant oil gas is in failure.
It is therefore a primary objective of the claimed invention to provide a ball bearing and a sleeve ring that utilize the principle of air pressure to seal the air gap, and the related structure of the air gap channel is improved to solve the above problems.
Disclosure of Invention
The present invention provides a ball bearing and a sleeve ring, which can prevent the lubricant oil inside the ball bearing from leaking to the outside of the ball bearing, reduce the pollution and waste, and prolong the operation life of the ball bearing and the ball bearing machine.
To achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides a ball bearing, which is sleeved on a shaft core, and includes an outer ring, at least one ball, and an inner ring.
The outer ring includes two lantern ring outer ring portions and ball outer ring portion, two lantern ring outer ring portions are located ball outer ring portion respectively and follow the relative both sides of axle center direction, and lantern ring outer ring portion has at least one outer loop air flue.
The inner ring comprises two ring inner ring portions and a ball inner ring portion, and the two ring inner ring portions are located on two opposite sides of the ball inner ring portion in the axis direction.
The ball is arranged in the inner space of the ball bearing, and the inner ring part of the ball corresponds to the outer ring part of the ball and clamps the ball.
The two lantern ring inner ring portions correspond to the two lantern ring outer ring portions respectively, an air gap channel is arranged between the corresponding lantern ring inner ring portion and the lantern ring outer ring portion, the air gap channel is communicated with the inner space of the ball bearing and the outer space of the ball bearing, and the position where the air gap channel is connected with the inner space of the ball bearing is of a first turning structure.
Wherein, the outer ring air flue is communicated with the outer space of the outer ring and the air gap channel.
To achieve at least one of the advantages or other advantages, another embodiment of the present invention provides a ball bearing, wherein the ball bearing further includes two rings and ball portions, each of the ball portions includes a ball inner ring portion, a ball outer ring portion, and at least one ball, the rings include corresponding ring inner ring portions and ring outer ring portions, the rings are sleeved on two opposite sides of the ball portions along an axial direction, and the ring outer ring portions are connected to the ball outer ring portions.
Furthermore, the outer ring air passage further comprises an air inlet flow passage and an accelerating flow passage, the air inlet flow passage is communicated with the accelerating flow passage and the outer space of the outer ring, the accelerating flow passage is communicated with the air inlet flow passage and the air gap passage, and the cross-sectional area of the air inlet flow passage is larger than that of the accelerating flow passage.
The outer ring portion of the lantern ring can be provided with a plurality of outer ring air passages and further provided with a nozzle structure, the nozzle structure can surround the axis, one side of the nozzle structure is communicated with the air gap passage, and the other side of the nozzle structure is communicated with the outer ring air passages.
The air gap passage may further include a first air gap and a second air gap, one end of the first air gap is engaged with the inner space of the ball bearing, and the other end of the first air gap is engaged with one end of the second air gap. The other end of the second air gap is communicated with the outer space of the ball bearing. One end of the first air gap, which is connected with the inner space of the ball bearing, is a first turning structure, the joint of the first air gap and the second air gap is a second turning structure, and the outer ring air passage is communicated with the first air gap.
Further, a lantern ring cavity is arranged between the lantern ring inner ring portion and the lantern ring outer ring portion, one side of the lantern ring cavity is connected to the inner space of the ball bearing in a connected mode, and the other side of the lantern ring cavity is connected to the air gap channel in a connected mode. The joint of the lantern ring cavity and the air gap channel is of a first turning structure, the outer ring part of the lantern ring is further provided with an oil collecting cavity, and the oil collecting cavity surrounds the axis and is adjacent to the first turning structure.
To achieve at least one of the advantages described above or other advantages, a further embodiment of the present invention provides a collar for use in a ball bearing, the collar including a collar outer ring portion and a collar inner ring portion.
The collar outer ring portion has at least one outer ring air passage.
An air gap channel is arranged between the inner ring portion of the lantern ring and the outer ring portion of the lantern ring, the air gap channel is communicated with the inner space of the ball bearing and the outer space of the ball bearing, the position where the air gap channel is connected with the inner space of the ball bearing is of a first turning structure, and the outer air channel of the outer ring is communicated with the outer space of the outer ring portion of the lantern ring and the air gap channel.
The outer ring portion of the collar may have a plurality of outer annular air passages further including an inlet flow passage and an acceleration flow passage, and further have a nozzle structure. The air inlet channel is communicated with the accelerating channel and the outer space of the outer ring part of the lantern ring, the accelerating channel is communicated with the air inlet channel and the air gap channel, and the cross section area of the air inlet channel is larger than that of the accelerating channel. The nozzle structure surrounds the axis, one side of the nozzle structure is communicated with the air gap channel, and the other side of the nozzle structure is communicated with the outer annular air passages.
Further, the air gap passage may further include a first air gap and a second air gap, one end of the first air gap is connected to the inner space of the ball bearing, the other end of the first air gap is connected to one end of the second air gap, and the other end of the second air gap is connected to the outer space of the ball bearing. One end of the first air gap, which is connected with the inner space of the ball bearing, is a first turning structure, the joint of the first air gap and the second air gap is a second turning structure, and the outer ring air passage is communicated with the first air gap.
In addition, a collar cavity can be further arranged between the collar inner ring part and the collar outer ring part, one side of the collar cavity is connected to the air gap channel, and the other side of the collar cavity is connected to the inner space of the ball bearing. The joint of the lantern ring cavity and the air gap channel is a first turning structure, the outer ring part of the lantern ring can be provided with an oil collecting cavity, and the oil collecting cavity surrounds the axis and is adjacent to the first turning structure.
Therefore, by using the ball bearing and the lantern ring provided by the invention, the flow direction of the lubricating oil gas entering the air gap channel is changed by using the first turning structure, and the air flow is applied by using the outer ring air channel to enter the air gap channel, so that the lubricating oil gas in the ball bearing can be prevented from leaking to the outside of the ball bearing, the pollution and the waste are reduced, and the service life of the ball bearing and the operation life of a machine in which the ball bearing is arranged are prolonged.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic cross-sectional view of a first example of a ball bearing according to the present invention;
FIG. 2 is a perspective view of a second embodiment of the ball bearing of the present invention;
FIG. 3 is an exploded view of a second embodiment of the ball bearing of the present invention;
FIG. 4 is a schematic cross-sectional view of a second embodiment of the ball bearing of the present invention;
FIG. 5 is an enlarged view of the outer annular airway and the turning structure of FIG. 4 according to the present invention;
FIG. 6 is a cross-sectional schematic view of the collar of the present invention;
FIG. 7 is an enlarged, fragmentary schematic view of an embodiment of an oil dam; and
fig. 8 is an enlarged view of still another embodiment of the first convertible structure of the present invention.
Detailed Description
Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the positional or orientational relationships indicated in the drawings to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or component being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Referring to fig. 1, fig. 1 is a schematic cross-sectional view of a first example of a ball bearing 10 according to the present invention. To achieve at least one of the advantages or other advantages, an embodiment of the present invention provides a ball bearing 10, the ball bearing 10 is sleeved on a shaft 12, and the ball bearing 10 includes an outer ring 14, at least one ball 16, and an inner ring 18. In the illustration, there are two sets of balls 16, one set on each of the left and right sides. Since fig. 1 is a cross-sectional view of the ball bearing 10 fitted around the shaft center 12, the upper and lower parts of the shaft center 12 are symmetrical ball bearing 10 members.
The outer ring 14 includes two outer ring portions 30 and two outer ball ring portions 20, the two outer ring portions 30 are respectively located at two opposite sides of the outer ball ring portions 20 along the axial center 12 direction, and since there are two sets of balls 16 in the figure, the two outer ring portions 30 are respectively located at two opposite sides of the two sets of outer ball ring portions 20 along the axial center 12 direction. The collar outer ring portion 30 has at least one outer ring air passage 3002, four outer ring air passages 3002 being visible in the sectional view.
The inner ring 18 includes two inner ring portions 32 and two inner ball ring portions 22, the two inner ring portions 32 and the two inner ball ring portions 22 are sleeved on the shaft center 12 and rotate along with the rotation of the shaft center 12, the two inner ring portions 32 are respectively located at two opposite sides of the inner ball ring portions 22 along the direction of the shaft center 12, and the two inner ring portions 32 are respectively located at two opposite sides of the two inner ball ring portions 22 along the direction of the shaft center 12 because there are two sets of balls 16 in the figure.
The balls 16 are provided in the inner space of the ball bearing 10, and the ball inner ring portion 22 is formed to correspond to the ball outer ring portion 20 and to sandwich the balls 16. In the illustrated example, there are two sets of balls 16, the upper and lower balls 16 visible on the left side being the same set of balls 16, and the upper and lower balls 16 visible on the right side being the other set of balls 16.
The two collar inner ring portions 32 correspond to the two collar outer ring portions 30, respectively, and an air gap passage 40 is provided between the corresponding collar inner ring portion 32 and the collar outer ring portion 30. The air-gap channel 40 connects the inner space of the ball bearing 10 with the outer space of the ball bearing 10, the inner space of the ball bearing 10 is the space where the balls 16 are located, and the space where the lubricant air is distributed, wherein the position where the air-gap channel 40 connects the inner space of the ball bearing 10 is the first turning structure 42.
In addition, the outer annular air passage 3002 is communicated with the outer space of the outer ring 14 and the air gap passage 40, and after the outer space of the outer ring 14 is inflated to enter the outer annular air passage 3002, high-pressure air is introduced into the air gap passage 40, so that an air seal effect is formed in the air gap passage 40, and lubricating oil gas in the ball bearing 10 is prevented from leaking through the air gap passage 40.
Referring to fig. 2 and fig. 3, fig. 2 is a perspective view of a ball bearing 10 according to a second embodiment of the present invention. Fig. 3 is an exploded view of a second example of the ball bearing 10 of the present invention. In the first example, the two collar outer ring portions 30 and all the ball outer ring portions 20 may be regarded as one integrally formed component, the two collar inner ring portions 32 and all the ball inner ring portions 22 may be regarded as one integrally formed component, the collar outer ring portion 30 and the ball outer ring portions 20 of the second example may be different components, and the collar inner ring portion 32 and the ball inner ring portions 22 may be different embodiments.
To achieve at least one of the above advantages or other advantages, another embodiment of the present invention provides a ball bearing 10, the ball bearing 10 is sleeved on a shaft 12, the ball bearing 10 is sleeved on a right side of the shaft 12, the ball bearing 10 further includes two rings 50 and two sets of ball portions 52, and the two sets of ball portions 52 are also shown in the figure. The ball portion 52 includes the ball inner ring portion 22, the ball outer ring portion 20, and the at least one ball 16, and the collar 50 includes the corresponding collar inner ring portion 32 and collar outer ring portion 30. The two collars 50 are fitted to the opposite outer sides of the ball portions 52 in the direction of the shaft center 12, and since there are two sets of ball portions 52 in the drawing, the two collars 50 are respectively located on the opposite outer sides of the two sets of ball portions 52 in the direction of the shaft center 12.
After assembly, the side of the outer ring 30 is connected to the side of the outer ring 20, the outer ring 30 can be connected to the outer ring 20 by means of threads, snaps, or casing connection components 39 …, and the legend is formed by sleeving the outer ring 30 and the outer ring 20 by means of a set of casing connection components 39, so as to connect the outer ring 30 and the outer ring 20.
In addition, the outer outlets of the outer annular ducts 3002 are visible, from which the high-pressure gas is fed to the air gap channels 40.
Referring to fig. 4 in conjunction with fig. 2 and fig. 3, fig. 4 is a schematic cross-sectional view of a ball bearing 10 according to a second embodiment of the present invention. As can be seen from the cross-sectional view, the two collars 50 sandwich the two sets of ball portions 52, so as to prevent the lubricant in the ball portions 52 from escaping out of the ball portions 52 by the air-tight principle.
In the illustrated embodiment, the ball bearing 10 is sleeved on the shaft 12, and the ball bearing 10 includes two rings 50 and two ball portions 52, also shown as two sets of ball portions 52. Each ball portion 52 includes a ball inner ring portion 22, a ball outer ring portion 20, and the at least one ball 16, and the collar 50 includes a corresponding collar inner ring portion 32 and collar outer ring portion 30.
An air gap channel 40 is formed between the inner ring portion 32 of the lantern ring and the outer ring portion 30 of the lantern ring, the outer ring air channel 3002 is communicated with the air gap channel 40, high-pressure air can be introduced into the air gap channel 40 from the outer space of the lantern ring 50, after the high-pressure air is introduced into the air gap channel 40, the high-pressure air is matched with the first turning structure 42, the lubricating oil gas can be effectively prevented from being discharged into the air gap channel 40, and further the lubricating oil gas is prevented from being scattered out of the ball bearing 10. The enlarged view a1 is used to detail the outer annular air passage 3002, the air gap passage 40, the first inflection structure 42, and the second inflection structure 44 in fig. 5.
Referring to fig. 5 in conjunction with fig. 4, fig. 5 is an enlarged schematic view of the outer annular air duct 3002 and the turning structure in fig. 4 according to the present invention.
Further, looking at the outer annular duct 3002 in the enlarged view a1, the outer annular duct 3002 further includes an inlet flow channel 60 and an acceleration flow channel 62, the inlet flow channel 60 communicates the acceleration flow channel 62 with the external space of the collar 50, the acceleration flow channel 62 communicates the inlet flow channel 60 with the air gap channel 40, and high-pressure gas is injected into the inlet flow channel 60 from the outside and then enters the acceleration flow channel 62. The cross-sectional area of the inlet flow channel 60 is larger than that of the accelerating flow channel 62, so that the air flow entering the accelerating flow channel 62 is accelerated and pressurized.
The collar outer ring portion 30 may have a plurality of outer annular gas passages 3002 and further has a nozzle structure 70, which nozzle structure 70 may be an annular channel surrounding the hub 12. The nozzle structure 70 has one side connected to the air gap passage 40 and the other side connected to the accelerating flow passage 62 of the plurality of outer annular air ducts 3002, only the sectional structure of the nozzle structure 70 is shown, in fact, the nozzle structure 70 may be a hole-shaped or disk-shaped structure, or a structure surrounding the shaft core 12 like an annular channel, which can exert the effect of generating high-pressure air to seal the air gap passage 40, and especially the structure surrounding the shaft core 12 can make the air gap passage 40 be completely sealed without dead angle.
The air gap channel 40 may further include a first air gap 4002 and a second air gap 4004, and the hinge structure may further include a first hinge structure 42 and a second hinge structure 44. One end of the first air gap 4002 is connected to the inner space of the ball bearing 10, the other end of the first air gap 4002 is connected to one end of the second air gap 4004, and the other end of the second air gap 4004 is connected to the outer space of the ball bearing 10.
The first turning structure 42 is at one end of the first air gap 4002 connected to the inner space of the ball bearing 10, the second turning structure 44 is at the connection position of the first air gap 4002 and the second air gap 4004, and the outer air channel 3002 can be connected to the first air gap 4002. Because of the design of the first turning structure 42, the high-pressure gas can effectively seal the air gap channel 40, and the lubricating oil gas is isolated outside the first air gap 4002 and the first turning structure 42, and after the design of the second turning structure 44, the assembly of the inner ring part 32 of the lantern ring and the outer ring part 30 of the lantern ring is facilitated, and the leakage of the lubricating oil gas can be effectively isolated due to multi-layer protection.
Looking further at the adjacent structure of the first inflection structure 42, a collar cavity 72 may be further defined between the collar inner ring portion 32 and the collar outer ring portion 30, wherein the collar cavity 72 is an annular channel cavity structure surrounding the core 12 and having a cup-shaped cross-sectional shape. One side opening of the collar cavity 72 is connected to the inner space of the ball bearing 10, the other side convergent opening of the collar cavity 72 is connected to the air gap channel 40, and the joint of the collar cavity 72 and the air gap channel 40 is the first turning structure 42. The outer ring portion 30 of the collar has an oil collecting chamber 74, the oil collecting chamber 74 is also an annular channel structure surrounding the shaft center 12, the oil collecting chamber 74 is also adjacent to the first turning structure 42, and the excess lubricating oil which is mixed with the oil gas and can be condensed into liquid state can be easily accumulated and contained in the oil collecting chamber 74.
Referring to fig. 6, fig. 6 is a cross-sectional view of the collar 50 of the present invention. To achieve at least one of the advantages or other advantages, a further embodiment of the present invention provides a collar 50 for use in a ball bearing 10 to seal off lubricating oil and gas inside the ball bearing 10 from leaking outside, the collar 50 including a collar outer ring portion 30 and a collar inner ring portion 32.
The collar outer ring part 30 has at least one outer ring air channel 3002, 2 outer ring air channels 3002 being visible in the cross section, wherein the outer ring air channels 3002 communicate with the air gap channel 40 and the outer space of the collar outer ring part 30.
An air gap channel 40 is arranged between the collar inner ring part 32 and the collar outer ring part 30, the air gap channel 40 communicates the inner space of the ball bearing 10 with the outer space of the ball bearing 10, and the position where the air gap channel 40 joins the inner space of the ball bearing 10 is a first turning structure 42.
The collar outer ring portion 30 may have a plurality of outer annular gas passages 3002 and further have a nozzle structure 70, the outer annular gas passages 3002 further including an inlet gas flow passage 60 and an acceleration flow passage 62. The inlet flow channel 60 communicates the accelerating flow channel 62 with the outer space of the collar outer ring 30, the accelerating flow channel 62 communicates the inlet flow channel 60 with the air gap channel 40, and the flow channel cross-sectional area of the inlet flow channel 60 is larger than that of the accelerating flow channel 62. The nozzle structure 70 may be an annular groove structure surrounding the shaft core 12, one side of the nozzle structure 70 is connected to the air gap channel 40, the other side of the nozzle structure 70 is connected to the acceleration channels 62 of the plurality of outer annular air channels 3002, and the high-pressure air ejected from the nozzle structure 70 may seal the air gap channel 40.
Further, the air gap channel 40 may further include a first air gap 4002 and a second air gap 4004, and the hinge structure may further include a first hinge structure 42 and a second hinge structure 44. One end of the first air gap 4002 is connected to the inner space of the ball bearing 10, the other end of the first air gap 4002 is connected to one end of the second air gap 4004, and the other end of the second air gap 4004 is connected to the outer space of the ball bearing 10. The first turning structure 42 is disposed at one end of the first air gap 4002 connected to the inner space of the ball bearing 10, the second turning structure 44 is disposed at the connection position of the first air gap 4002 and the second air gap 4004, and the outer air channel 3002 is connected to the first air gap 4002. Because of the design of the first turning structure 42, the high-pressure gas sprayed from the nozzle structure 70 can effectively seal the air gap channel 40, and the lubricating oil gas is blocked outside the first air gap 4002 and the first turning structure 42, and after the design of the second turning structure 44, the assembly of the inner ring part 32 and the outer ring part 30 of the lantern ring is facilitated, and the leakage of the lubricating oil gas can be effectively blocked due to multi-layer protection.
In addition, a collar cavity 72 may further be provided between the collar inner ring portion 32 and the collar outer ring portion 30, one side opening of the collar cavity 72 is engaged with the air gap channel 40, the other side opening of the collar cavity 72 is engaged with the inner space of the ball bearing 10, and the engagement between the collar cavity 72 and the air gap channel 40 is the first turning structure 42. The collar outer ring portion 30 may further have a sump cavity 74, the sump cavity 74 surrounding the hub 12 and adjacent the first convolution 42.
Further, the oil collection chamber 74 may be provided with an additional oil drain 76 under gravity to the exterior of the collar 50 to drain or otherwise collect excess liquid lubricant that has condensed in the oil collection chamber 74.
Referring to fig. 7, fig. 7 is a partially enlarged view of an embodiment of the oil baffle wall 78. Fig. 7 is an enlarged view a2 of fig. 6 illustrating another embodiment, wherein to achieve at least one of the advantages or other advantages, an oil dam 78 is provided according to another embodiment of the present invention, the oil dam 78 is disposed at the top end of the first turning structure 42 and is also annularly disposed around the shaft core 12. When the excess liquid lubricant is stored in the oil collection chamber 74, the oil baffle wall 78 prevents the liquid lubricant from flowing back into the collar chamber 72 and also allows the lubricant to form a swirling oil-gas flow in the oil collection chamber 74.
Referring to fig. 8, fig. 8 is an enlarged view of a further embodiment of the first turning structure 42 according to the present invention. Fig. 8 illustrates a further embodiment of the first inflection structure 42 in an enlarged view corresponding to the location of fig. 4, enlarged view a 1. In addition to the aspects of the foregoing embodiments, the first turning structure 42 of the embodiment shown in fig. 8 can also effectively seal the lubricant oil from the collar cavity 72.
After the high-pressure gas is injected into the air gap channel 40 from the outer annular gas channel 3002 through the nozzle structure 70, an air pressure shield is effectively formed at the interface between the air gap channel 40 and the first turning structure 42, so that the lubricating oil gas cannot be discharged into the air gap channel 40 through the first turning structure 42, and the problem of discharging the lubricating oil gas is also solved.
Various configurations of the first inflection structure 42 are possible, such as V-shaped, U-shaped, trapezoidal …, etc., but it is within the scope of the present invention to utilize the first inflection structure 42 to safely and effectively seal the lubricant inside the ball bearing 10 or in the collar cavity 72.
In summary, according to the ball bearing 10 and the collar 50 provided by the present invention, the first turning structure 42 is used to change the flow direction of the lubricant oil entering the air gap channel 40, and the outer air channel 3002 is used to apply the air flow entering the air gap channel 40, so as to prevent the lubricant oil inside the ball bearing 10 from leaking to the outside of the ball bearing 10, reduce pollution and waste, and prolong the operation life of the ball bearing 10 and the machinery in which the ball bearing 10 is located.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A ball bearing, cup joint axle center, its characterized in that, ball bearing includes:
the outer ring comprises two lantern ring outer ring parts and a ball outer ring part, the two lantern ring outer ring parts are respectively positioned on two opposite sides of the ball outer ring part along the axis direction, and the lantern ring outer ring part is provided with at least one outer ring air passage;
at least one ball arranged in the inner space of the ball bearing; and
the inner ring comprises two lantern ring inner ring parts and a ball inner ring part, the two lantern ring inner ring parts are respectively positioned on two opposite sides of the ball inner ring part along the axis direction, the ball inner ring part corresponds to the ball outer ring part and clamps the at least one ball, the two lantern ring inner ring parts respectively correspond to the two lantern ring outer ring parts, an air gap channel is arranged between the corresponding lantern ring inner ring part and the lantern ring outer ring part, the air gap channel is communicated with the inner space of the ball bearing and the outer space of the ball bearing, and the position of the air gap channel, which is connected with the inner space of the ball bearing, is a first turning structure;
wherein the outer ring air passage is communicated with the outer space of the outer ring and the air gap passage.
2. The ball bearing of claim 1 wherein said collar outer ring portion is connected to said ball outer ring portion.
3. The ball bearing of claim 2, wherein the outer ring air passage further comprises an inlet flow passage and an acceleration flow passage, the inlet flow passage communicates the acceleration flow passage with an outer space of the outer ring, the acceleration flow passage communicates the inlet flow passage with the air gap passage, and a flow passage sectional area of the inlet flow passage is larger than a flow passage sectional area of the acceleration flow passage.
4. The ball bearing of claim 2, wherein the outer ring portion of the collar has a plurality of outer annular air passages and a nozzle structure surrounding the shaft, one side of the nozzle structure communicating with the air gap passage and the other side of the nozzle structure communicating with the plurality of outer annular air passages.
5. The ball bearing of claim 2, wherein the air gap channel further comprises a first air gap and a second air gap, one end of the first air gap is connected to the inner space of the ball bearing, the other end of the first air gap is connected to one end of the second air gap, the other end of the second air gap is connected to the outer space of the ball bearing, one end of the first air gap connected to the inner space of the ball bearing is the first turning structure, the connection between the first air gap and the second air gap is the second turning structure, and the outer air channel is connected to the first air gap.
6. The ball bearing of claim 2, wherein a collar cavity is further defined between the collar inner ring portion and the collar outer ring portion, one side of the collar cavity is connected to an inner space of the ball bearing, the other side of the collar cavity is connected to the air gap channel, a connection between the collar cavity and the air gap channel is the first inflection structure, and the collar outer ring portion further has a oil collection cavity surrounding the axis and adjacent to the first inflection structure.
7. A collar for use in a ball bearing, the collar comprising:
a collar outer ring portion having at least one outer ring air passage; and
the inner ring portion of the lantern ring, the lantern ring inner ring portion with have the air gap passageway between the outer ring portion of the lantern ring, the air gap passageway intercommunication ball bearing's inner space and ball bearing's exterior space, the position that the air gap passageway links up ball bearing inner space is first inflection structure, wherein outer ring air flue communicate in the outer space of the lantern ring outer ring portion with the air gap passageway.
8. The collar of claim 7, wherein the collar outer ring portion has a plurality of outer annular air passages and a nozzle structure, the outer annular air passages further include an inlet flow passage and an acceleration flow passage, the inlet flow passage communicates the acceleration flow passage with an outer space of the collar outer ring portion, the acceleration flow passage communicates the inlet flow passage with the air gap channel, a cross-sectional area of the inlet flow passage is larger than a cross-sectional area of the acceleration flow passage, the nozzle structure surrounds a shaft center, one side of the nozzle structure communicates with the air gap channel, and the other side of the nozzle structure communicates with the plurality of outer annular air passages.
9. The ferrule as defined in claim 7, wherein the air gap passage further comprises a first air gap and a second air gap, one end of the first air gap is connected to the inner space of the ball bearing, the other end of the first air gap is connected to one end of the second air gap, the other end of the second air gap is connected to the outer space of the ball bearing, the first end of the first air gap connected to the inner space of the ball bearing is the first turning structure, the connection between the first air gap and the second air gap is the second turning structure, and the outer air channel is connected to the first air gap.
10. A ferrule as in claim 7, further comprising a ferrule cavity between the ferrule inner ring portion and the ferrule outer ring portion, one side of the ferrule cavity engaging the air gap channel, the other side of the ferrule cavity engaging an interior space of the ball bearing, the engagement of the ferrule cavity and the air gap channel being the first inflection structure, the ferrule outer ring portion further comprising a oil collection cavity surrounding the axis and adjacent to the first inflection structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203113.6A CN109555785B (en) | 2018-10-16 | 2018-10-16 | Ball bearing and collar |
| PCT/CN2019/111326 WO2020078356A1 (en) | 2018-10-16 | 2019-10-15 | Ball bearing and lantern rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203113.6A CN109555785B (en) | 2018-10-16 | 2018-10-16 | Ball bearing and collar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109555785A CN109555785A (en) | 2019-04-02 |
| CN109555785B true CN109555785B (en) | 2020-07-07 |
Family
ID=65864903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811203113.6A Active CN109555785B (en) | 2018-10-16 | 2018-10-16 | Ball bearing and collar |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109555785B (en) |
| WO (1) | WO2020078356A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555785B (en) * | 2018-10-16 | 2020-07-07 | 汤秉辉 | Ball bearing and collar |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006022865A (en) * | 2004-07-07 | 2006-01-26 | Koyo Seiko Co Ltd | Lubricant supply device for bearing |
| CN101008422A (en) * | 2007-01-05 | 2007-08-01 | 陈善飞 | Lubricating and sealing device of thrust ball bearing |
| CN102537051A (en) * | 2006-06-08 | 2012-07-04 | 日本精工株式会社 | Drawn cup needle roller bearing having a seal ring and its manufacture method |
| CN103056397A (en) * | 2012-12-31 | 2013-04-24 | 哈尔滨工业大学 | Large-diameter ultra-precise air static pressure rotating shafting |
| CN103644204A (en) * | 2013-12-23 | 2014-03-19 | 天长缸盖有限公司 | Air seal self-adaption temperature regulation bearing |
| JP2015034563A (en) * | 2013-08-07 | 2015-02-19 | 株式会社ジェイテクト | Bearing device |
| CN105179477A (en) * | 2015-09-12 | 2015-12-23 | 北京科技大学 | Rotation-modulation axial spherical pure electromagnetic bearing |
| CN107084195A (en) * | 2017-05-24 | 2017-08-22 | 北京石油化工学院 | A kind of pure electromagnetism magnetic bearing of the common position inner rotor radial sphere of prosecution |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10165027C5 (en) * | 2000-10-27 | 2019-10-02 | Nsk Ltd. | Rolling bearing and spindle device for machine tool |
| CN101268292B (en) * | 2005-08-31 | 2012-06-13 | 阿尔法拉瓦尔股份有限公司 | Bearing device |
| JP2014025525A (en) * | 2012-07-26 | 2014-02-06 | Jtekt Corp | Oil air lubrication type rolling bearing device |
| CN105465183B (en) * | 2015-12-30 | 2019-04-09 | 西安交通大学 | A kind of outer guidance high speed roller bearing lubricating arrangement |
| CN107345539A (en) * | 2017-07-18 | 2017-11-14 | 广州市昊志机电股份有限公司 | Oil-air lubrication spacer component |
| CN109555785B (en) * | 2018-10-16 | 2020-07-07 | 汤秉辉 | Ball bearing and collar |
-
2018
- 2018-10-16 CN CN201811203113.6A patent/CN109555785B/en active Active
-
2019
- 2019-10-15 WO PCT/CN2019/111326 patent/WO2020078356A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006022865A (en) * | 2004-07-07 | 2006-01-26 | Koyo Seiko Co Ltd | Lubricant supply device for bearing |
| CN102537051A (en) * | 2006-06-08 | 2012-07-04 | 日本精工株式会社 | Drawn cup needle roller bearing having a seal ring and its manufacture method |
| CN101008422A (en) * | 2007-01-05 | 2007-08-01 | 陈善飞 | Lubricating and sealing device of thrust ball bearing |
| CN103056397A (en) * | 2012-12-31 | 2013-04-24 | 哈尔滨工业大学 | Large-diameter ultra-precise air static pressure rotating shafting |
| JP2015034563A (en) * | 2013-08-07 | 2015-02-19 | 株式会社ジェイテクト | Bearing device |
| CN103644204A (en) * | 2013-12-23 | 2014-03-19 | 天长缸盖有限公司 | Air seal self-adaption temperature regulation bearing |
| CN105179477A (en) * | 2015-09-12 | 2015-12-23 | 北京科技大学 | Rotation-modulation axial spherical pure electromagnetic bearing |
| CN107084195A (en) * | 2017-05-24 | 2017-08-22 | 北京石油化工学院 | A kind of pure electromagnetism magnetic bearing of the common position inner rotor radial sphere of prosecution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109555785A (en) | 2019-04-02 |
| WO2020078356A1 (en) | 2020-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101156008B (en) | Shaft sealing and vacuum pump with the shaft sealing | |
| CN102466026B (en) | Shaft device | |
| WO2012053366A1 (en) | Roller bearing | |
| US4664605A (en) | Oil sealing deflector | |
| US20030030223A1 (en) | Liquid seal | |
| US20020128140A1 (en) | Free Jet centrifuge rotor | |
| CN100392270C (en) | Bearing box and seal assembly therein | |
| RU2203751C2 (en) | Sealing assembly for oil film lubricated roll of rolling mill (variants) | |
| US8789656B2 (en) | Shaft bearing lubricant aerator, system, and method | |
| CN109555785B (en) | Ball bearing and collar | |
| CN101512172A (en) | Power transmission structure | |
| US4426088A (en) | Centrifugal fluid seal with drain holes and fluid diverting means | |
| CN105020272B (en) | A kind of locomotive oil blocking cover and locomotive traction motor oil seal system oil resistance method | |
| US6659227B2 (en) | Oil leak prevention structure for vacuum pump | |
| CN112984091A (en) | Axle center oil supply structure of bearing between aircraft engine axles | |
| US20210025403A1 (en) | Rotating machine and turbocharger | |
| US9163558B1 (en) | Complex path design of the flinger and insert | |
| US20080089632A1 (en) | Tapered roller bearing device | |
| US20020182097A1 (en) | Oil leak Prevention Structure for vacuum pump | |
| US11421773B1 (en) | Vehicle drivetrain lubrication system | |
| US6896412B2 (en) | Bearing assembly including rolling elements | |
| JP2018533689A (en) | Shaft seal | |
| CN209510713U (en) | Labyrinth seal system | |
| US11885401B2 (en) | Transmission | |
| CN208337305U (en) | A kind of water pump vertical machine bearing note displacement configuration and vertical machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |