WO2020078356A1 - 滚珠轴承以及套环 - Google Patents

滚珠轴承以及套环 Download PDF

Info

Publication number
WO2020078356A1
WO2020078356A1 PCT/CN2019/111326 CN2019111326W WO2020078356A1 WO 2020078356 A1 WO2020078356 A1 WO 2020078356A1 CN 2019111326 W CN2019111326 W CN 2019111326W WO 2020078356 A1 WO2020078356 A1 WO 2020078356A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer ring
air gap
collar
ball bearing
ball
Prior art date
Application number
PCT/CN2019/111326
Other languages
English (en)
French (fr)
Inventor
汤秉辉
Original Assignee
汤秉辉
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 汤秉辉 filed Critical 汤秉辉
Publication of WO2020078356A1 publication Critical patent/WO2020078356A1/zh

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

Definitions

  • the invention relates to a ball bearing and a collar, in particular to an air-sealed collar used in the ball bearing.
  • Ball bearing components are often used in machines with rotating shafts. They are inexpensive and widely used.
  • the basic structure is to sandwich multiple balls between the outer ring and the inner ring.
  • the inner ring is sleeved on the rotating shaft ,
  • the outer ring will be connected to the outer structure, of which the inner ring and the rotating shaft and the outer ring and the outer structure of the two groups of components, one group is a rotating component, the other group is relatively non-rotating component, so this combination can make the rotating shaft Rotate in the external structure.
  • the purpose of the ball is to reduce the friction between the rotating part and the non-rotating part. Friction will consume and generate heat. In order to reduce the friction between the ball and the rotating part or the non-rotating part, lubricating oil or lubricating gas is generally injected to improve the friction. problem.
  • the main purpose of the present invention is to provide a ball bearing and a collar, which uses the principle of air pressure to close the air gap, and the related structure to improve the air gap channel to solve the above problems.
  • the purpose of the present invention is to provide a ball bearing and a collar, which can prevent the lubricant gas inside the ball bearing from leaking to the outside of the ball bearing, reduce pollution and waste, and increase the operating life of the ball bearing and the machine where the ball bearing is located.
  • an embodiment of the present invention provides a ball bearing, which is sleeved on an axis, and the ball bearing includes an outer ring, at least one ball, and an inner ring.
  • the outer ring includes two collar outer ring portions and a ball outer ring portion, the two collar outer ring portions are located on opposite sides of the ball outer ring portion along the axis direction, and the collar outer ring portion has at least one outer ring airway.
  • the inner ring includes two sleeve inner ring portions and a ball inner ring portion, and the two sleeve inner ring portions are located on opposite sides of the ball inner ring portion along the axis direction.
  • the balls are arranged in the inner space of the ball bearing, and the inner ring portion of the ball corresponds to the outer ring portion of the ball and sandwiches the ball.
  • the two collar inner ring portions correspond to the two collar outer ring portions, respectively, and there is an air gap channel between the corresponding collar inner ring portion and the collar outer ring portion, and the air gap channel communicates with the ball
  • the internal space of the bearing and the external space of the ball bearing, and the position where the air gap channel connects the internal space of the ball bearing is the first turning structure.
  • the outer ring airway communicates with the outer space of the outer ring and the air gap channel.
  • yet another embodiment of the present invention provides a ball bearing, the ball bearing further includes two sets of rings and a ball portion, the ball portion includes a ball inner ring portion, a ball outer ring portion, And at least one ball, the collar includes a corresponding collar inner ring portion and a collar outer ring portion, the two collars are sleeved on opposite sides of the ball portion along the axis direction, wherein the collar outer ring portion is connected to Ball outer ring.
  • the outer ring air passage further includes an intake flow passage and an acceleration flow passage, the intake flow passage connects the acceleration flow passage and the outer space of the outer ring, the acceleration flow passage connects the intake flow passage and the air gap passage, and the cross section area of the intake flow passage It is larger than the cross-sectional area of the flow path of the acceleration flow path.
  • the outer ring portion of the collar may have multiple outer ring air passages and further have a nozzle structure, the nozzle structure may surround the axis, one side of the nozzle structure communicates with the air gap channel, and the other side of the nozzle structure communicates with the multiple outer Ring airway.
  • the air gap channel may further include a first air gap and a second air gap, one end of the first air gap is connected to the internal space of the ball bearing, and 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 communicates with the external space of the ball bearing.
  • One end of the first air gap connecting the inner space of the ball bearing is the first turning structure
  • the junction of the first air gap and the second air gap is the second turning structure
  • the outer ring air passage communicates with the first air gap.
  • a collar cavity is further provided between the collar inner ring portion and the collar outer ring portion, one side of the collar cavity is connected to the inner space of the ball bearing, and the other side of the collar cavity is connected to the air gap channel.
  • the junction between the collar cavity and the air gap channel is the first turning structure, and the outer ring portion of the collar further has an oil collecting cavity, which surrounds the axis and is adjacent to the first turning structure.
  • yet another embodiment of the present invention provides a collar for use in a ball bearing.
  • the collar includes a collar outer ring portion and a collar inner ring portion.
  • the outer ring portion of the collar has at least one outer ring airway.
  • the air gap channel connects the internal space of the ball bearing and the external space of the ball bearing.
  • the position where the air gap channel connects the internal space of the ball bearing is the first turning structure.
  • the outer ring air channel is connected to the outer space of the outer ring part of the collar and the air gap channel.
  • the outer ring portion of the collar may have multiple outer ring air passages and further have a nozzle structure.
  • the outer ring air passage further includes an intake flow passage and an acceleration flow passage.
  • the intake runner connects the acceleration runner and the outer space of the outer ring of the collar.
  • the acceleration runner connects the intake runner and the air gap channel.
  • the cross-sectional area of the runner is larger than the cross-sectional area of the runner.
  • the nozzle structure surrounds the axis, 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 ring air channels.
  • the air gap channel may further include a first air gap and a second air gap.
  • One end of the first air gap is connected to the internal space of the ball bearing, and the other end of the first air gap is connected to one end of the second air gap.
  • the other end of the two air gaps communicates with the external space of the ball bearing.
  • One end of the first air gap connecting the inner space of the ball bearing is the first turning structure, the junction of the first air gap and the second air gap is the second turning structure, and the outer ring air passage communicates with the first air gap.
  • a collar cavity may be further provided between the collar inner ring portion and the collar outer ring portion, 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 junction between the collar cavity and the air gap channel is the first turning structure.
  • the outer ring portion of the collar may further have an oil collecting cavity, which surrounds the axis and is adjacent to the first turning structure.
  • the first turning structure is used to change the flow direction of the lubricating gas into the air gap channel, and the outer ring air channel is used to apply air flow into the air gap channel, thereby preventing the ball bearing
  • the internal lubricating gas leaks to the outside of the ball bearing, reducing pollution and waste, and increasing the operating life of the ball bearing and the machine where the ball bearing is located.
  • FIG. 1 is a schematic cross-sectional view of the first example of the ball bearing of the present invention
  • FIG. 2 is a schematic perspective view of the appearance of a second example of the ball bearing of the present invention.
  • FIG. 3 is an exploded schematic view of the second example of the ball bearing of the present invention.
  • FIG. 4 is a schematic cross-sectional view of a second example of the ball bearing of the present invention.
  • FIG. 5 is an enlarged schematic view of the outer ring airway and turning structure of FIG. 4 of the present invention.
  • FIG. 6 is a schematic cross-sectional view of the collar of the present invention.
  • FIG 8 is an enlarged view of yet another embodiment of the first turning structure of the present invention.
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • installation should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • FIG. 1 is a schematic cross-sectional view of a first example of a ball bearing 10 of the present invention.
  • an embodiment of the present invention provides a ball bearing 10, the ball bearing 10 is sleeved on the shaft 12, the ball bearing 10 includes an outer ring 14, at least one ball 16, and Inner ring 18. In the legend there are two sets of balls 16 placed on the left and right. Since FIG. 1 is a cross-sectional view of the ball bearing 10 sleeved on the shaft 12, the upper and lower parts of the shaft 12 are symmetrical parts of the ball bearing 10.
  • the outer ring 14 includes two collar outer ring portions 30 and a ball outer ring portion 20.
  • the two collar outer ring portions 30 are located on opposite sides of the ball outer ring portion 20 in the direction of the axis 12 respectively.
  • Two sets of balls 16 so the two collar outer ring portions 30 are respectively located on opposite sides of the two sets of ball outer ring portions 20 along the direction of the axis 12.
  • the collar outer ring portion 30 has at least one outer ring airway 3002, and four outer ring airways 3002 can be seen in the cross-sectional view in the figure.
  • the inner ring 18 includes two collar inner ring portions 32 and ball inner ring portions 22, and the two collar inner ring portions 32 and ball inner ring portions 22 are sleeved on the shaft 12 and rotate with the rotation of the shaft 12 ,
  • the two collar inner ring portions 32 are located on opposite sides of the ball inner ring portion 22 in the direction of the axis 12, because there are two sets of balls 16 in the figure, the two collar inner ring portions 32 are located in two sets of balls
  • the inner ring portion 22 is on opposite sides in the direction of the axis 12.
  • the ball 16 is provided in the internal space of the ball bearing 10, and the ball inner ring portion 22 corresponds to the ball outer ring portion 20 and sandwiches the ball 16.
  • there are two groups of balls 16 the upper and lower balls 16 visible on the left are the same group of balls 16, and the upper and lower balls 16 visible on the right are the other group of balls 16.
  • the two collar inner ring portions 32 correspond to the two collar outer ring portions 30 respectively, and there are air gap channels 40 between the corresponding collar inner ring portions 32 and the collar outer ring portions 30.
  • the air gap channel 40 communicates the internal space of the ball bearing 10 and the external space of the ball bearing 10.
  • the internal space of the ball bearing 10 is the space where the balls 16 are located and is also the space where the lubricating gas is distributed. Among them, the air gap channel 40 connects the ball bearing 10
  • the position of the internal space is the first turning structure 42.
  • the outer ring air channel 3002 communicates with the outer space of the outer ring 14 and the air gap channel 40. After the outer space of the outer ring 14 is pumped into the outer ring air channel 3002, high-pressure gas is introduced into the air gap channel 40.
  • the air gap channel 40 forms an air seal effect to prevent the lubricant gas inside the ball bearing 10 from leaking out through the air gap channel 40.
  • FIG. 2 is a schematic perspective view of a second example of the ball bearing 10 of the present invention.
  • FIG. 3 is an exploded schematic view of the second example of the ball bearing 10 of the present invention.
  • the two collar outer ring portions 30 and all the ball outer ring portions 20 can be regarded as one piece formed in one piece, and the two collar inner ring portions 32 and all the ball inner ring portions 22 can also be regarded as It is an integrally formed part.
  • the collar outer ring portion 30 and the ball outer ring portion 20 are different components.
  • the collar inner ring portion 32 and the ball inner ring portion 22 are also examples of different components.
  • yet another embodiment of the present invention provides a ball bearing 10 that is sleeved on the shaft 12.
  • the ball bearing 10 is sleeved on the shaft 12
  • the ball bearing 10 further includes two collars 50 and a ball portion 52.
  • the 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 a collar outer ring portion 30.
  • the two collars 50 are sleeved on the two outer sides of the ball portion 52 along the axis 12. Since there are two sets of ball portions 52 in the figure, the two collars 50 are located on the two sets of ball portions 52 along the axis 12 respectively The opposite sides of the direction.
  • the side surface of the outer ring portion 30 of the collar is connected to the side surface of the outer ring portion 20 of the ball.
  • the outer ring portion 30 of the collar can be connected to the outer ring portion 20 of the ball by means of threads, snaps, or outer sleeve connecting components 39 ...
  • the illustration uses a set of outer sleeve connecting components 39 to be sleeved outside the collar outer ring portion 30 and the ball outer ring portion 20 to thereby connect the collar outer ring portion 30 and the ball outer ring portion 20.
  • FIG. 4 is a schematic cross-sectional view of a second example of the ball bearing 10 of the present invention. It can be more clearly understood from the cross-sectional view that the two collars 50 enclose the two sets of ball parts 52, and the purpose is to prevent the lubricant gas in the ball parts 52 from escaping out of the ball parts 52 by the principle of air sealing.
  • the ball bearing 10 is sleeved on the shaft center 12, and the ball bearing 10 includes two collars 50 and a ball portion 52. There are also two sets of ball portions 52 in the figure. 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 a collar 50 includes a corresponding collar inner ring portion 32 and a collar outer ring portion 30.
  • An air gap channel 40 is formed between the inner ring portion 32 of the collar and the outer ring portion 30 of the collar, the outer ring air channel 3002 communicates with the air gap channel 40, and high pressure gas can be introduced into the air gap channel 40 from the outer space of the collar 50 when the high pressure gas After the air gap channel 40 is introduced, the high-pressure gas cooperates with the first turning structure 42 to effectively prevent the lubricating gas from leaking into the air gap channel 40, thereby preventing the lubricating gas from escaping out of the ball bearing 10.
  • the enlarged view A1 in the figure will be used to detail the outer ring airway 3002, the air gap channel 40, the first turning structure 42, and the second turning structure 44 in FIG.
  • FIG. 5 is an enlarged schematic view of the outer ring airway 3002 and the turning structure of FIG. 4 of the present invention.
  • the outer ring air passage 3002 further includes an intake flow passage 60 and an acceleration flow passage 62.
  • the intake flow passage 60 connects the acceleration flow passage 62 with the outer space of the collar 50, and the acceleration flow passage 62 connects the intake flow passage 60 and the air gap passage 40, and the high-pressure gas enters the intake flow passage 60 from the outside, and then enters the acceleration flow passage 62.
  • the cross-sectional area of the flow path of the intake flow path 60 is larger than the cross-sectional area of the flow path of the acceleration flow path 62. Therefore, after the air flow enters the acceleration flow path 62, it will be accelerated and pressurized.
  • the collar outer ring portion 30 may have a plurality of outer ring air passages 3002 and further have a nozzle structure 70, which may be an annular channel around the axis 12.
  • One side of the nozzle structure 70 communicates with the air gap channel 40, and the other side of the nozzle structure 70 communicates with the accelerating flow channel 62 of the plurality of outer ring air channels 3002.
  • the structure 70 may be a hole-shaped or disc-shaped structure, or it may be a structure that surrounds the axis 12 like a ring-shaped channel, all of which can exert the effect of generating a high-pressure gas seal air gap channel 40, especially around the axis With the structure of 12, all the air gap channels 40 can be air-sealed without dead angles.
  • the air gap channel 40 may further include a first air gap 4002 and a second air gap 4004, and the turning structure may further include a first turning structure 42 and a second turning 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
  • the other end of the second air gap 4004 is connected to the outside of the ball bearing 10 space.
  • first turning structure 42 One end of the first air gap 4002 connecting the inner space of the ball bearing 10 is the first turning structure 42, the junction of the first air gap 4002 and the second air gap 4004 is the second turning structure 44, and the outer ring air passage 3002 can be connected to the first One air gap 4002.
  • the high-pressure gas can effectively seal the air gap channel 40, and the lubricating oil is blocked outside the first air gap 4002 and the first turning structure 42, plus the second turning structure 44
  • it not only facilitates the assembly of the inner ring portion 32 of the collar and the outer ring portion 30 of the collar, but also more effectively blocks the leakage of lubricating gas due to multiple layers of protection.
  • a collar cavity 72 can be further provided between the collar inner ring portion 32 and the collar outer ring portion 30.
  • the collar cavity 72 is a cup-shaped cross-section around the axis 12. Ring channel cavity structure.
  • the opening on one side of the collar cavity 72 is connected to the internal space of the ball bearing 10, and the converging opening on the other side of the collar cavity 72 is connected to the air gap channel 40.
  • the connection between the collar cavity 72 and the air gap channel 40 is the first Turning structure 42.
  • the outer ring portion 30 of the collar further has an oil collecting cavity 74, which is also an annular channel structure surrounding the axis 12, and the oil collecting cavity 74 is also adjacent to the first turning structure 42, which is redundant in the mixed oil and gas and may condense Lubricating oil in a liquid state can be easily stored in the oil collecting chamber 74.
  • FIG. 6 is a schematic cross-sectional view of the collar 50 of the present invention.
  • a collar 50 which is used in the ball bearing 10 and the lubricating gas used in the air-sealed ball bearing 10 does not leak out.
  • the collar 50 includes a collar outer ring portion 30 and a collar inner ring portion 32.
  • the collar outer ring portion 30 has at least one outer ring air channel 3002.
  • Two outer ring air channels 3002 can be seen in the cross section in the figure, wherein the outer ring air channel 3002 communicates with the outer space of the collar outer ring portion 30 and the air gap channel 40.
  • the air gap channel 40 communicates the internal space of the ball bearing 10 with the external space of the ball bearing 10, and the air gap channel 40 connects the internal space of the ball bearing 10 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ 42 ⁇ The position of the first turning structure 42.
  • the collar outer ring portion 30 may have multiple outer ring air passages 3002 and further have a nozzle structure 70.
  • the outer ring air passage 3002 further includes an intake flow passage 60 and an acceleration flow passage 62.
  • the intake runner 60 connects the acceleration runner 62 and the outer space of the outer ring portion 30 of the collar.
  • the accelerator runner 62 connects the intake runner 60 and the air gap channel 40.
  • the cross-sectional area of the runner is larger than the accelerator runner 62 Cross-sectional area of the runner.
  • the nozzle structure 70 may be an annular groove structure around the axis 12.
  • One side of the nozzle structure 70 communicates with the air gap channel 40, and the other side of the nozzle structure 70 communicates with the accelerating flow of the plurality of outer ring air channels 3002 In channel 62, the high-pressure gas ejected from the nozzle structure 70 can seal the air gap channel 40.
  • the air gap channel 40 may further include a first air gap 4002 and a second air gap 4004, and the turning structure may further include a first turning structure 42 and a second turning 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
  • the other end of the second air gap 4004 is connected to the outside of the ball bearing 10 space.
  • One end of the first air gap 4002 connecting the inner space of the ball bearing 10 is the first turning structure 42
  • the junction of the first air gap 4002 and the second air gap 4004 is the second turning structure 44
  • the outer ring air passage 3002 communicates with the first Air gap 4002.
  • the high-pressure gas ejected from the nozzle structure 70 can effectively seal the air gap channel 40, and the lubricating oil is blocked outside the first air gap 4002 and the first turning structure 42, plus
  • the design of the second turning structure 44 not only facilitates the assembly of the collar inner ring portion 32 and the collar outer ring portion 30, but also effectively prevents the leakage of lubricating gas due to multiple layers of protection.
  • a collar cavity 72 may be further provided between the collar inner ring portion 32 and the collar outer ring portion 30, one opening of the collar cavity 72 is connected to the air gap channel 40, and the other side of the collar cavity 72 is open
  • the first turning structure 42 is connected to the inner space of the ball bearing 10 and the joint between the collar cavity 72 and the air gap channel 40.
  • the outer ring portion 30 of the collar may further have an oil collecting cavity 74 which surrounds the axis 12 and is adjacent to the first turning structure 42.
  • an oil drain hole 76 can be added to the oil collecting chamber 74 under the gravity to pass to the outside of the collar 50, so as to discharge or otherwise collect excess liquid lubricating oil condensed in the oil collecting chamber 74.
  • FIG. 7 is a partially enlarged schematic view of the embodiment of the oil retaining wall 78.
  • 7 is an enlarged view A2 of FIG. 6 to illustrate another embodiment.
  • another embodiment of the present invention proposes an oil retaining wall 78, which is provided at The top end of the first turning structure 42 also loops around the axis 12.
  • the oil retaining wall 78 can prevent the liquid lubricating oil from flowing back into the collar cavity 72, and can also cause the lubricating gas to form a swirling oil flow in the oil collecting cavity 74.
  • FIG. 8 is an enlarged view of yet another embodiment of the first turning structure 42 of the present invention.
  • FIG. 8 illustrates another embodiment of the first turning structure 42 with an enlarged view equivalent to the enlarged view A1 of FIG. 4.
  • the first turning structure 42 in the example of FIG. 8 can also effectively seal the lubricating gas in the collar cavity 72.
  • 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 gas cannot escape through the first turning structure 42
  • the air gap channel 40 thus eliminates the problem of lubricant gas leakage.
  • the structural form of the first turning structure 42 can also have various forms, whether it is a V shape, a U shape, a trapezoid ... and other structural shapes, but they all use the first turning structure 42 within the scope of the rights claimed by the present invention.
  • the lubricating oil can be air-sealed in the ball bearing 10 or the sleeve cavity 72 in a safe and effective manner.
  • the first turning structure 42 is used to change the flow direction of the lubricating gas into the air gap channel 40, and the outer ring air channel 3002 is used to apply air flow into the air gap.
  • the passage 40 can prevent the lubricating gas inside the ball bearing 10 from leaking to the outside of the ball bearing 10, reduce pollution and waste, and increase the operating life of the machine where the ball bearing 10 and the ball bearing 10 are located.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

一种滚珠轴承（10）以及套环（50），两个套环（50）沿轴心方向设置于滚珠部（52）的两侧，滚珠部（52）是由滚珠外环部（20）与滚珠内环部（22）包夹多个滚珠（16）所构成，套环（50）是由套环内环部（32）与套环外环部（30）构成，并于套环内环部（32）与套环外环部（30）间形成气隙通道（40），滚珠内环部（22）与套环内环部（32）都是套接在转轴上，套环外环部（30）连接滚珠外环部（20），套环外环部（30）具有外环气道（3002），外环气道（3002）连通气隙信道（40），气隙信道（40）衔接滚珠轴承内部空间的位置是第一转折结构（42）。藉此，自外环气道（3002）注气至气隙通道（40），形成的气压可以将润滑油气阻滞于气隙通道（40）与第一转折结构（42）的外部，以避免润滑油气泄漏。

Description

滚珠轴承以及套环 技术领域
本发明涉及一种滚珠轴承以及套环，尤其涉及一种利用于滚珠轴承中的气封式套环。
背景技术
滚珠轴承部件常利用于有转轴的机械中，成本低廉而为较被广为利用的一种轴承，基本的结构是于外环与内环间包夹多个滚珠，内环套接在转轴上，外环会跟外部的结构连接，其中内环与转轴以及外环与外部结构的两组部件中，一组为转动部件，另一组相对为非转动部件，因此，如此的组合可以使转轴转动于所述外部结构中。
滚珠的目的就是减少转动部件与非转动部件间的摩擦，磨擦会耗损与生热，为了再减少滚珠与转动部件或非转动部件间的摩擦，一般会注入润滑油或润滑油气，以改善摩擦的问题。
即使注入的是润滑油，在滚珠轴承部件运转的过程也容易使润滑油变成润滑油气，然而，转动部件与非转动部件间一定有气隙，特别是滚珠轴承部件两外侧的气隙，会使滚珠轴承部件内部的润滑油气逸散出滚珠轴承部件之外，这样不但浪费了润滑油，也会造成污染，不仅可能因失去润滑油而使滚珠轴承部件损坏，也可能因为润滑油气污染的滚珠轴承部件所在的机械，而使机械发生故障。
因此，本发明的主要目的在于提供一种滚珠轴承以及套环，利用气压封闭气隙的原理，加上改善气隙信道的相关结构，以解决上述问题。
发明内容
本发明之目的在提供一种滚珠轴承以及套环，能防止滚珠轴承内部的润滑油气渗漏至滚珠轴承外部，减少污染与浪费，增长滚珠轴承与滚珠轴承所在机械的操作寿命。
为达所述优点至少其中之一或其他优点，本发明的一实施例提出一种滚 珠轴承，套接轴心，滚珠轴承包括外环、至少一个滚珠、以及内环。
外环包括二个套环外环部以及滚珠外环部，所述二个套环外环部分别位于滚珠外环部沿轴心方向的相对两侧，套环外环部具有至少一个外环气道。
内环包括二个套环内环部以及滚珠内环部，所述二个套环内环部分别位于滚珠内环部沿轴心方向的相对两侧。
滚珠设于滚珠轴承的内部空间，滚珠内环部与滚珠外环部对应并包夹滚珠。
所述二个套环内环部分别与所述二个套环外环部对应，且于相对应的套环内环部与套环外环部之间具有气隙信道，气隙信道连通滚珠轴承的内部空间与滚珠轴承的外部空间，气隙通道衔接滚珠轴承内部空间的位置是第一转折结构。
其中，外环气道连通于外环的外部空间与气隙通道。
为达所述优点至少其中之一或其他优点，本发明的又一实施例提出一种滚珠轴承，滚珠轴承更包括二套环与滚珠部，滚珠部包括滚珠内环部、滚珠外环部、及至少一个滚珠，套环包括相对应的套环内环部及套环外环部，所述二套环套接于滚珠部沿轴心方向的相对两侧，其中套环外环部连接于滚珠外环部。
进一步，外环气道更包括进气流道及加速流道，进气流道连通加速流道与外环的外部空间，加速流道连通进气流道与气隙通道，进气流道的流道截面积是大于加速流道的流道截面积。
套环外环部可以具有多个外环气道以及进一步具有喷嘴结构，喷嘴结构可以环绕轴心，喷嘴结构的一侧连通于气隙通道，喷嘴结构的另一侧连通于所述多个外环气道。
气隙通道可以更包括第一气隙及第二气隙，第一气隙的一端衔接于滚珠轴承的内部空间，第一气隙的另一端并衔接于第二气隙的一端，。第二气隙的另一端连通于滚珠轴承的外部空间。第一气隙衔接滚珠轴承内部空间的一端是第一转折结构，第一气隙与第二气隙的衔接处是第二转折结构，外环气道连通于第一气隙。
进一步，套环内环部与套环外环部之间更具有套环腔，套环腔的一侧衔接于滚珠轴承的内部空间，套环腔的另一侧衔接于气隙通道。套环腔与气隙通道的衔接处是第一转折结构，套环外环部更具有集油腔，集油腔环绕轴心 并与第一转折结构相邻。
为达所述优点至少其中之一或其他优点，本发明的又一实施例提出一种套环，利用于滚珠轴承中，套环包括套环外环部以及套环内环部。
套环外环部具有至少一个外环气道。
套环内环部与套环外环部之间具有气隙信道，气隙信道连通滚珠轴承的内部空间与滚珠轴承的外部空间，气隙通道衔接滚珠轴承内部空间的位置是第一转折结构，其中外环气道连通于套环外环部之外部空间与气隙通道。
套环外环部可以具有多个外环气道以及进一步具有喷嘴结构，外环气道更包括进气流道及加速流道。进气流道连通加速流道与套环外环部的外部空间，加速流道连通进气流道与气隙通道，进气流道的流道截面积是大于加速流道的流道截面积。喷嘴结构环绕轴心，喷嘴结构的一侧连通于气隙通道，喷嘴结构的另一侧连通于所述多个外环气道。
进一步，气隙通道可以更包括第一气隙及第二气隙，第一气隙的一端衔接于滚珠轴承的内部空间，第一气隙的另一端并衔接于第二气隙的一端，第二气隙的另一端连通于滚珠轴承的外部空间。第一气隙衔接滚珠轴承内部空间的一端是第一转折结构，第一气隙与第二气隙的衔接处是第二转折结构，外环气道连通于第一气隙。
此外，套环内环部与套环外环部之间更可以进一步具有套环腔，套环腔的一侧衔接于气隙通道，套环腔的另一侧衔接滚珠轴承的内部空间。套环腔与气隙通道的衔接处是第一转折结构，套环外环部更可以具有集油腔，集油腔环绕轴心并与第一转折结构相邻。
因此，利用本发明所提供一种滚珠轴承以及套环，利用第一转折结构改变润滑油气进入气隙通道的流动方向，并利用外环气道施加气流进入气隙通道中，藉以能防止滚珠轴承内部的润滑油气渗漏至滚珠轴承外部，减少污染与浪费，增长滚珠轴承与滚珠轴承所在机械的操作寿命。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其他目的、特征和优点能够更明显易懂，以下特举较佳实施例，并配合附图,详细说明如下。
附图说明
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本发明滚珠轴承第一例的剖面示意图；
图2是本发明滚珠轴承第二例的外观透视示意图；
图3是本发明滚珠轴承第二例的爆炸示意图；
图4是本发明滚珠轴承第二例的剖面示意图；
图5是本发明图4中外环气道与转折结构的放大示意图；
图6是本发明套环的剖面示意图；
图7是挡油墙实施例的局部放大示意图；以及
图8是本发明第一转折结构再一实施例的放大图。
具体实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用于描述本发明的示例性实施例的目的。但是本发明可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本发明的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或组件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直 接相连，也可以通过中间媒介间接相连，可以是两个组件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
请参阅图1，图1是本发明滚珠轴承10第一例的剖面示意图。为达所述优点至少其中之一或其他优点，本发明的一实施例提出一种滚珠轴承10，滚珠轴承10套接于轴心12，滚珠轴承10包括外环14、至少一个滚珠16、以及内环18。图例中有分置于左、右侧的两组滚珠16。因为图1为套接轴心12的滚珠轴承10剖面图，所以轴心12上方与下方为对称的滚珠轴承10部件。
外环14包括二个套环外环部30以及滚珠外环部20，所述二个套环外环部30分别位于滚珠外环部20沿轴心12方向的相对两侧，因图中有两组滚珠16，所以二个套环外环部30分别位于两组滚珠外环部20沿轴心12方向的相对两侧。套环外环部30具有至少一个外环气道3002，图中剖面图已可见四个外环气道3002。
内环18包括二个套环内环部32以及滚珠内环部22，二个套环内环部32以及滚珠内环部22接套接在轴心12上随着轴心12转动而跟着转动，二个套环内环部32并分别位于滚珠内环部22沿轴心12方向的相对两侧，因图中有两组滚珠16，所以二个套环内环部32分别位于两组滚珠内环部22沿轴心12方向的相对两侧。
滚珠16设于滚珠轴承10的内部空间，滚珠内环部22与滚珠外环部20对应并包夹滚珠16。图例中有两组滚珠16，左侧可见的上、下两颗滚珠16为同一组滚珠16，右侧可见的上、下两颗滚珠16为另一组滚珠16。
所述二个套环内环部32分别与所述二个套环外环部30对应，且于相对应的套环内环部32与套环外环部30之间具有气隙通道40。气隙通道40连通滚珠轴承10的内部空间与滚珠轴承10的外部空间，滚珠轴承10的内部 空间即为滚珠16所在的空间，也是润滑油气遍布的空间，其中，气隙通道40衔接滚珠轴承10内部空间的位置是第一转折结构42。
此外，外环气道3002连通于外环14的外部空间与气隙通道40，可由外环14的外部空间打气进入外环气道3002后，再将高压气体导入气隙通道40，藉此于气隙通道40形成气封效果，避免滚珠轴承10内部的润滑油气，通过气隙通道40泄漏出。
请参阅图2以及图3，图2是本发明滚珠轴承10第二例的外观透视示意图。图3是本发明滚珠轴承10第二例的爆炸示意图。前述第一例可以将二个套环外环部30以及全部的滚珠外环部20视为一体成形的一个零件，将二个套环内环部32以及全部的滚珠内环部22也视为一体成形的一个零件，而第二例的套环外环部30与滚珠外环部20是不同组件，套环内环部32以及滚珠内环部22也是不同组件的实施例。
为达所述优点至少其中之一或其他优点，本发明的又一实施例提出一种滚珠轴承10，滚珠轴承10套接在轴心12上，图中滚珠轴承10套接在轴心12的右侧，滚珠轴承10更包括二个套环50与滚珠部52，图中也为两组滚珠部52。滚珠部52包括滚珠内环部22、滚珠外环部20、及所述至少一个滚珠16，套环50包括相对应的套环内环部32及套环外环部30。所述二个套环50套接于滚珠部52沿轴心12方向的相对两外侧，因图中有两组滚珠部52，所以二个套环50分别位于两组滚珠部52沿轴心12方向的相对两外侧。
其中于组装后，套环外环部30的侧面连接于滚珠外环部20的侧面，套环外环部30可利用螺纹、卡扣、或外套连接组件39…等方式与滚珠外环部20连接，图例即利用一组外套连接组件39套在套环外环部30与滚珠外环部20的外部，藉此来连接套环外环部30与滚珠外环部20。
此外，图中可见多个外环气道3002的外部出口，高压的气体即自此处灌入直达前述的气隙通道40中。
配合图2、图3请进一步参阅图4，图4是本发明滚珠轴承10第二例的剖面示意图。由剖面图更可以清晰了解，二个套环50包夹两组滚珠部52，目的就是以气封的原理防止滚珠部52中的润滑油气逸散出滚珠部52之外。
图例中滚珠轴承10套接在轴心12上，滚珠轴承10包括二个套环50与滚珠部52，图中也为两组滚珠部52。每一个滚珠部52包括滚珠内环部22、滚珠外环部20、及所述至少一个滚珠16，套环50包括相对应的套环内环部 32及套环外环部30。
套环内环部32与套环外环部30间形成气隙通道40，外环气道3002连通气隙通道40，可自套环50外部空间将高压气体导入气隙通道40，当高压气体导入气隙通道40后，高压气体与第一转折结构42配合可以有效阻挡润滑油气泄入气隙通道40中，进而避免润滑油气逸散出滚珠轴承10之外。图中放大图A1将用于详细陈述外环气道3002、气隙通道40、第一转折结构42、与第二转折结构44于图5中。
配合图4请进一步参阅图5，图5是本发明图4中外环气道3002与转折结构的放大示意图。
进一步在放大图A1中观察外环气道3002，外环气道3002更包括进气流道60及加速流道62，进气流道60连通加速流道62与套环50的外部空间，加速流道62连通进气流道60与气隙通道40，高压气体自外部打入进气流道60后，再进入加速流道62。进气流道60的流道截面积是大于加速流道62的流道截面积，因此，气流进入加速流道62后还会被增速增压。
套环外环部30可以具有多个外环气道3002以及进一步具有喷嘴结构70，喷嘴结构70可以是环绕轴心12的环状沟道。喷嘴结构70的一侧连通于气隙通道40，喷嘴结构70的另一侧连通于所述多个外环气道3002的加速流道62，图示仅见喷嘴结构70的剖面结构，事实上喷嘴结构70可以是个孔状或盘孔状结构，也可以是环绕着轴心12如环状沟道一般的结构，皆能发挥产生高压气体气封气隙通道40的功效，特别是环绕着轴心12的结构，则能使气隙通道40全部都被气封而无死角。
气隙通道40可以更包括第一气隙4002及第二气隙4004，转折结构可以更包含第一转折结构42及第二转折结构44。第一气隙4002的一端衔接于滚珠轴承10的内部空间，第一气隙4002的另一端并衔接于第二气隙4004的一端，第二气隙4004的另一端连通于滚珠轴承10的外部空间。
第一气隙4002衔接滚珠轴承10内部空间的一端是第一转折结构42，第一气隙4002与第二气隙4004的衔接处是第二转折结构44，外环气道3002可以连通于第一气隙4002。因为第一转折结构42的设计，使得高压气体可以有效的气封气隙通道40，而将润滑油气阻绝在第一气隙4002以及第一转折结构42之外，加上第二转折结构44的设计后，不仅方便套环内环部32与套环外环部30的装配，更能因多层防护而更有效的阻绝润滑油气外漏。
进一步观察第一转折结构42的邻近结构，套环内环部32与套环外环部30之间更可以具有套环腔72，套环腔72是一个环绕轴心12且截面形状为杯状的环状沟道空腔结构。套环腔72的一侧开口衔接于滚珠轴承10的内部空间，套环腔72的另一侧收敛的开口衔接于气隙通道40，套环腔72与气隙通道40的衔接处是第一转折结构42。套环外环部30更具有集油腔74，集油腔74也是环绕轴心12的环状沟道结构，集油腔74也与第一转折结构42相邻，混和油气中多余且会凝成液态的润滑油，会容易积存收容在集油腔74中。
请再参阅图6，图6是本发明套环50的剖面示意图。为达所述优点至少其中之一或其他优点，本发明的又一实施例提出一种套环50，利用于滚珠轴承10中，用于气封滚珠轴承10内部的润滑油气不会外漏，套环50包括套环外环部30以及套环内环部32。
套环外环部30具有至少一个外环气道3002，图中剖面可见2个外环气道3002，其中外环气道3002连通于套环外环部30之外部空间与气隙通道40。
套环内环部32与套环外环部30之间具有气隙信道40，气隙信道40连通滚珠轴承10的内部空间与滚珠轴承10的外部空间，气隙通道40衔接滚珠轴承10内部空间的位置是第一转折结构42。
套环外环部30可以具有多个外环气道3002以及进一步具有喷嘴结构70，外环气道3002更包括进气流道60及加速流道62。进气流道60连通加速流道62与套环外环部30的外部空间，加速流道62连通进气流道60与气隙通道40，进气流道60的流道截面积是大于加速流道62的流道截面积。喷嘴结构70可以环绕轴心12而为环状沟槽结构，喷嘴结构70的一侧连通于气隙通道40，喷嘴结构70的另一侧连通于所述多个外环气道3002的加速流道62，自喷嘴结构70喷出的高压气体可以气封气隙通道40。
进一步，气隙通道40可以更包括第一气隙4002及第二气隙4004，转折结构可以更包括第一转折结构42与第二转折结构44。第一气隙4002的一端衔接于滚珠轴承10的内部空间，第一气隙4002的另一端并衔接于第二气隙4004的一端，第二气隙4004的另一端连通于滚珠轴承10的外部空间。第一气隙4002衔接滚珠轴承10内部空间的一端是第一转折结构42，第一气隙4002与第二气隙4004的衔接处是第二转折结构44，外环气道3002连通于 第一气隙4002。因为第一转折结构42的设计，使喷嘴结构70喷出的高压气体可以有效的气封气隙通道40，而将润滑油气阻绝在第一气隙4002以及第一转折结构42之外，加上第二转折结构44的设计后，不仅方便套环内环部32与套环外环部30的装配，更能因多层防护而有效的阻绝润滑油气外漏。
此外，套环内环部32与套环外环部30之间更可以进一步具有套环腔72，套环腔72的一侧开口衔接于气隙通道40，套环腔72的另一侧开口衔接滚珠轴承10的内部空间，套环腔72与气隙通道40的衔接处是第一转折结构42。套环外环部30更可以具有集油腔74，集油腔74环绕轴心12并与第一转折结构42相邻。
进一步，在重力下方的集油腔74可以增设一条排油孔76通到套环50外部，以将集油腔74中凝聚多余的液态润滑油排出或另外收集。
请参阅图7，图7是挡油墙78实施例的局部放大示意图。图7是利用图6的放大图A2来说明另一个实施态样，为达所述优点至少其中之一或其他优点，本发明的又一实施例提出挡油墙78，挡油墙78设置在第一转折结构42的顶端，也呈环状的绕着轴心12。当润滑油气多余的液态润滑油积存在集油腔74中时，挡油墙78可以避免液态润滑油流回套环腔72中，也可以使润滑油气在集油腔74形成回旋的油气流。
请参阅图8，图8是本发明第一转折结构42再一实施例的放大图。图8以等同图4放大图A1位置的放大图来说明第一转折结构42的再一实施例。第一转折结构42除了前述实施例的态样之外，图8例的第一转折结构42也能有效发挥将润滑油气气封在套环腔72的功效。
高压气体自外环气道3002通过喷嘴结构70注入气隙通道40后，有效的于气隙通道40与第一转折结构42接口处形成气压盾，使润滑油气无法通过第一转折结构42泄入气隙通道40中，因此也就免除润滑油气泄出的问题。
关于第一转折结构42的结构型态还可以有多种态样，无论是V型、U型、梯形…等结构形状，但都在本发明所主张的权利范围中，利用第一转折结构42则能安全有效的将润滑油气气封于滚珠轴承10内部或套环腔72中。
综上所述，利用本发明所提供一种滚珠轴承10以及套环50，利用第一转折结构42改变润滑油气进入气隙通道40的流动方向，并利用外环气道3002施加气流进入气隙通道40中，藉以能防止滚珠轴承10内部的润滑油气渗漏至滚珠轴承10外部，减少污染与浪费，增长滚珠轴承10与滚珠轴承10 所在机械的操作寿命。
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明,任何熟悉本专业的技术人员,在不脱离本发明技术方案范围内，当可利用上述揭示的方法及技术内容作出些许的更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。

Claims (10)

  1. 一种滚珠轴承，套接轴心，其特征在于，所述滚珠轴承包括：
    外环，包括二个套环外环部以及滚珠外环部，所述二个套环外环部分别位于所述滚珠外环部沿轴心方向的相对两侧，所述套环外环部具有至少一个外环气道；
    至少一个滚珠，设于滚珠轴承的内部空间；以及
    内环，包括二个套环内环部以及滚珠内环部，所述二个套环内环部分别位于所述滚珠内环部沿轴心方向的相对两侧，所述滚珠内环部与所述滚珠外环部对应并包夹所述至少一个滚珠，所述二个套环内环部分别与所述二个套环外环部对应，且于相对应的所述套环内环部与所述套环外环部之间具有气隙通道，所述气隙通道连通滚珠轴承的内部空间与滚珠轴承的外部空间，所述气隙通道衔接滚珠轴承内部空间的位置是第一转折结构；
    其中，所述外环气道连通于所述外环的外部空间与所述气隙通道。
  2. 如权利要求1所述的滚珠轴承，其特征在于，所述滚珠轴承更包括二套环与滚珠部，所述滚珠部包括所述滚珠内环部、所述滚珠外环部、及所述至少一个滚珠，所述套环包括相对应的所述套环内环部及所述套环外环部，所述二套环套接于所述滚珠部沿轴心方向的相对两侧，其中所述套环外环部连接于所述滚珠外环部。
  3. 如权利要求2所述的滚珠轴承，其特征在于，所述外环气道更包括进气流道及加速流道，所述进气流道连通所述加速流道与所述外环的外部空间，所述加速流道连通所述进气流道与所述气隙通道，所述进气流道的流道截面积是大于加速流道的流道截面积。
  4. 如权利要求2所述的滚珠轴承，其特征在于，所述套环外环部具有多个外环气道及喷嘴结构，所述喷嘴结构环绕轴心，所述喷嘴结构的一侧连通于所述气隙通道，所述喷嘴结构的另一侧连通于所述多个外环气道。
  5. 如权利要求2所述的滚珠轴承，其特征在于，所述气隙通道更包括第一气隙及第二气隙，所述第一气隙的一端衔接于滚珠轴承的内 部空间，所述第一气隙的另一端并衔接于所述第二气隙的一端，所述第二气隙的另一端连通于滚珠轴承的外部空间，所述第一气隙衔接滚珠轴承内部空间的一端是所述第一转折结构，所述第一气隙与第二气隙的衔接处是第二转折结构，所述外环气道连通于所述第一气隙。
  6. 如权利要求2所述的滚珠轴承，其特征在于，所述套环内环部与所述套环外环部之间更具有套环腔，所述套环腔的一侧衔接于滚珠轴承的内部空间，所述套环腔的另一侧衔接于所述气隙通道，所述套环腔与所述气隙通道的衔接处是所述第一转折结构，所述套环外环部更具有集油腔，所述集油腔环绕轴心并与所述第一转折结构相邻。
  7. 一种套环，利用于滚珠轴承中，其特征在于，所述套环包括：
    套环外环部，具有至少一个外环气道；以及
    套环内环部，所述套环内环部与所述套环外环部之间具有气隙通道，所述气隙通道连通滚珠轴承的内部空间与滚珠轴承的外部空间，所述气隙通道衔接滚珠轴承内部空间的位置是第一转折结构，其中所述外环气道连通于所述套环外环部之外部空间与所述气隙通道。
  8. 如权利要求7所述的套环，其特征在于，所述套环外环部具有多个外环气道及喷嘴结构，所述外环气道更包括进气流道及加速流道，所述进气流道连通所述加速流道与所述套环外环部的外部空间，所述加速流道连通所述进气流道与所述气隙通道，所述进气流道的流道截面积是大于加速流道的流道截面积，所述喷嘴结构环绕轴心，所述喷嘴结构的一侧连通于所述气隙通道，所述喷嘴结构的另一侧连通于所述多个外环气道。
  9. 如权利要求7所述的套环，其特征在于，所述气隙通道更包括第一气隙及第二气隙，所述第一气隙的一端衔接于滚珠轴承的内部空间，所述第一气隙的另一端并衔接于所述第二气隙的一端，所述第二气隙的另一端连通于滚珠轴承的外部空间，所述第一气隙衔接滚珠轴承内部空间的一端是所述第一转折结构，所述第一气隙与第二气隙的衔接处是第二转折结构，所述外环气道连通于所述第一气隙。
  10. 如权利要求7所述的套环，其特征在于，所述套环内环部与所述套环外环部之间更具有套环腔，所述套环腔的一侧衔接于所述气 隙通道，所述套环腔的另一侧衔接滚珠轴承的内部空间，所述套环腔与所述气隙通道的衔接处是所述第一转折结构，所述套环外环部更具有集油腔，所述集油腔环绕轴心并与所述第一转折结构相邻。
PCT/CN2019/111326 2018-10-16 2019-10-15 滚珠轴承以及套环 WO2020078356A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811203113.6 2018-10-16
CN201811203113.6A CN109555785B (zh) 2018-10-16 2018-10-16 滚珠轴承以及套环

Publications (1)

Publication Number Publication Date
WO2020078356A1 true WO2020078356A1 (zh) 2020-04-23

Family

ID=65864903

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/111326 WO2020078356A1 (zh) 2018-10-16 2019-10-15 滚珠轴承以及套环

Country Status (2)

Country Link
CN (1) CN109555785B (zh)
WO (1) WO2020078356A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109555785B (zh) * 2018-10-16 2020-07-07 汤秉辉 滚珠轴承以及套环

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020097939A1 (en) * 2000-10-27 2002-07-25 Nsk Ltd. Rolling bearing and spindle apparatus for machine tool
CN101268292A (zh) * 2005-08-31 2008-09-17 阿尔法拉瓦尔股份有限公司 轴承装置
JP2014025525A (ja) * 2012-07-26 2014-02-06 Jtekt Corp オイルエア潤滑式転がり軸受装置
CN105465183A (zh) * 2015-12-30 2016-04-06 西安交通大学 一种外引导高速滚动轴承润滑装置
CN107345539A (zh) * 2017-07-18 2017-11-14 广州市昊志机电股份有限公司 油气润滑隔套组件
CN109555785A (zh) * 2018-10-16 2019-04-02 汤秉辉 滚珠轴承以及套环

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4569747B2 (ja) * 2004-07-07 2010-10-27 株式会社ジェイテクト 軸受用潤滑剤供給装置
CN102537051B (zh) * 2006-06-08 2014-11-26 日本精工株式会社 具有密封圈的冲压外圈滚针轴承及其制造方法
CN101008422A (zh) * 2007-01-05 2007-08-01 陈善飞 推力球轴承的润滑和密封装置
CN103056397B (zh) * 2012-12-31 2014-12-17 哈尔滨工业大学 一种大直径超精密气体静压回转轴系
JP2015034563A (ja) * 2013-08-07 2015-02-19 株式会社ジェイテクト 軸受装置
CN103644204B (zh) * 2013-12-23 2016-01-20 天长缸盖有限公司 一种气体密封自适应温度调节轴承
CN105179477B (zh) * 2015-09-12 2017-07-28 北京科技大学 一种旋转调制轴向球面纯电磁磁轴承
CN107084195B (zh) * 2017-05-24 2019-04-12 北京石油化工学院 一种检控共位内转子径向球面纯电磁磁轴承

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020097939A1 (en) * 2000-10-27 2002-07-25 Nsk Ltd. Rolling bearing and spindle apparatus for machine tool
CN101268292A (zh) * 2005-08-31 2008-09-17 阿尔法拉瓦尔股份有限公司 轴承装置
JP2014025525A (ja) * 2012-07-26 2014-02-06 Jtekt Corp オイルエア潤滑式転がり軸受装置
CN105465183A (zh) * 2015-12-30 2016-04-06 西安交通大学 一种外引导高速滚动轴承润滑装置
CN107345539A (zh) * 2017-07-18 2017-11-14 广州市昊志机电股份有限公司 油气润滑隔套组件
CN109555785A (zh) * 2018-10-16 2019-04-02 汤秉辉 滚珠轴承以及套环

Also Published As

Publication number Publication date
CN109555785A (zh) 2019-04-02
CN109555785B (zh) 2020-07-07

Similar Documents

Publication Publication Date Title
TWI603020B (zh) 流體機械潤滑系統總成
US10316691B2 (en) Bearing structure and turbocharger
JPS61121740A (ja) ガスタ−ビン用高速発電機
US10520026B2 (en) Bearing structure and turbocharger
US10408260B2 (en) Bearing structure and turbocharger
WO2020078356A1 (zh) 滚珠轴承以及套环
US10669891B2 (en) Bearing structure and turbocharger
WO2017145581A1 (ja) インペラ背面冷却構造及び過給機
CN108547953A (zh) 一种用于密炼机的密封装置
CN106438449A (zh) 用于离心泵的密封组件及离心泵
US8286969B2 (en) Floating fluid film seals
CN111022897A (zh) 螺纹联接结构和环下供油装置
KR102646179B1 (ko) 베어링 하우징을 밀봉하기 위한 장치, 및 이러한 장치를 갖는 배기가스 터보차저
US20210025403A1 (en) Rotating machine and turbocharger
KR101849363B1 (ko) 오일 실
WO2020063454A1 (zh) 一种传动箱箱体与传动轴的连接结构
CN106949190A (zh) 浮动环式阻尼密封装置
CN208702641U (zh) 吸气消音器及压缩机
CN207212625U (zh) 一种压缩机回油系统
CN208885970U (zh) 一种离心风机用复合密封
CN212055749U (zh) 一种高线速度下的油封结构
CN218564389U (zh) 一种高压离心风机机壳与主轴密封结构
CN114704481A (zh) 一种防高压区漏油的离心风机
CN219472395U (zh) 一种防漏油联轴器护罩和联轴器
US20220316527A1 (en) Recirculation of lubricant in a turbomachine rolling-element bearing

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19873960

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19873960

Country of ref document: EP

Kind code of ref document: A1