WO2021036657A1 - Palier à grande vitesse susceptible d'une pulvérisation auto-activée d'une lubrification de brouillard d'huile, procédé de lubrification et application - Google Patents

Palier à grande vitesse susceptible d'une pulvérisation auto-activée d'une lubrification de brouillard d'huile, procédé de lubrification et application Download PDF

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Publication number
WO2021036657A1
WO2021036657A1 PCT/CN2020/105456 CN2020105456W WO2021036657A1 WO 2021036657 A1 WO2021036657 A1 WO 2021036657A1 CN 2020105456 W CN2020105456 W CN 2020105456W WO 2021036657 A1 WO2021036657 A1 WO 2021036657A1
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WIPO (PCT)
Prior art keywords
oil
inner ring
speed
ring body
lubrication
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PCT/CN2020/105456
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English (en)
Chinese (zh)
Inventor
张志刚
Original Assignee
张志刚
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Publication date
Priority claimed from CN201910813303.8A external-priority patent/CN110566573A/zh
Priority claimed from CN201921429180.XU external-priority patent/CN210461382U/zh
Application filed by 张志刚 filed Critical 张志刚
Publication of WO2021036657A1 publication Critical patent/WO2021036657A1/fr

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    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • 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
    • F16C33/58—Raceways; Race rings
    • 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
    • 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
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members

Definitions

  • the invention relates to the technical field of bearings, in particular to a self-excited oil mist spray lubrication high-speed bearing, a lubrication method and application.
  • high-speed rolling bearing lubrication method is related to the bearing speed, load, allowable temperature rise, and bearing type, and can be selected according to the value of d m n (d m is the pitch circle diameter of the bearing rolling body; n is the working speed).
  • High speed rolling bearing grease lubrication can only be used where the value of d m n ⁇ 1.3 ⁇ 10 6, and when the value of d m n ⁇ 1.3 ⁇ 6 10, the high-speed rolling bearings can only use oil lubrication.
  • the existing thin oil lubrication methods for high-speed rolling bearings include oil mist lubrication (d m n value ⁇ 1.8 ⁇ 10 6 ), oil-air lubrication (d m n value ⁇ 2.0 ⁇ 10 6 ), and under-ring lubrication (d m n value ⁇ 3.0 ⁇ 10 6 ), jet lubrication (d m n value ⁇ 3.0 ⁇ 10 6 ); the above four thin oil lubrication methods have many problems such as complex structure, high energy consumption of compressed air, high fuel consumption, and large pollution. Their applications The range is also greatly limited; other available bearing types are also greatly restricted in application, such as magnetic bearings are too expensive to purchase, low carrying capacity, and too sensitive to temperature; compressed air consumption of air bearings, carrying capacity low.
  • the belt-driven double-row ball rotor bearing is a kind of bearing with a unique lubrication principle that uses thin oil lubrication to run in a higher speed area.
  • the bearing lubricant is initially installed as grease, and subsequently added Lubricating oil, there is a typical explanation for this: after the grease is used for a period of time, the base oil contained in it will be lost, and some base oil needs to be replenished regularly to maintain the performance of the original grease.
  • the existing double-row ball rotor bearings have the following problems: First, due to the limitations of structure, space location, transmission mode and rotor dynamics, it is difficult for the existing double-row ball rotor bearings to achieve a rotation speed of more than 110,000 rpm directly driven by a motor.
  • the present invention proposes a self-excited oil mist spray lubrication high-speed bearing, a lubrication method and application.
  • a self-excited oil mist spray lubrication high-speed bearing comprising an outer ring sleeve and an inner ring body, both ends of the outer ring sleeve are connected with the inner ring body through a non-contact type sealing assembly, and the outer ring sleeve
  • the oil storage space and the cage are located between the two sealing components.
  • the cage is provided with at least one ring of rolling elements.
  • the oil storage space and the cage are provided with rolling elements.
  • One side of the body corresponds.
  • a lubrication hole is provided on the sleeve wall of the outer ring sleeve, and the lubrication hole is communicated with the oil storage space.
  • the cage is provided with a half-open pocket for positioning the rolling body, the side of the cage with the pocket is an open side, and the open side faces the oil storage space.
  • the inner wall of the outer ring sleeve is provided with an outer raceway
  • the outer wall of the inner ring body is provided with an inner raceway
  • the rolling bodies are respectively matched with the outer raceway and the inner raceway.
  • the sealing assembly includes an inner flat gasket, an outer flat gasket and a special-shaped sealing element.
  • the special-shaped sealing element is located between the inner flat gasket and the outer flat gasket.
  • An O-shaped sealing ring is arranged between the special-shaped sealing element and the outer ring sleeve.
  • a retaining ring is arranged at the outer end, and the retaining ring is clamped between the outer ring sleeve and the inner ring body through a circlip.
  • the sealing assembly includes a gap sealing body, the gap sealing body is clamped between the outer ring sleeve and the inner ring body by a circlip, an O-shaped sealing ring is arranged between the gap sealing body and the outer ring sleeve, and the gap sealing body is opposite to the inner ring body.
  • the inner ring body is a hollow separate sleeve body or forms an integral solid shaft body together with the rotating shaft;
  • the rolling body is a sphere, a cylinder, a tapered cylinder, or a spherical roller.
  • the oil storage space is a horizontal concave ring groove, and the horizontal concave ring groove is arranged on the inner wall of the outer ring.
  • the oil storage space is an upwardly open inclined ring groove, and the inclined ring groove is arranged on the inner wall of the outer ring.
  • the inner wall of the outer ring sleeve is provided with at least one inclined ring groove, and the lubricating hole is located at the upper part of the topmost inclined ring groove.
  • a self-excited oil mist spray lubrication method for high-speed bearings includes the following steps:
  • step S3 In step S2, when the inner ring body rotates at a high speed, a vortex sealing effect is generated at the slits adjacent to the outer surface of the inner ring body and the sealing assembly to seal the oil.
  • step S1 the lubricating oil periodically enters between the outer ring sleeve and the inner ring body. It must be satisfied that sufficient lubricating oil is kept in the oil storage space when the bearing is stationary, and the lubricating oil does not pass between the seal assembly and the inner ring body. Overflow in the gap between the bearings to maintain the self-excited jet lubrication effect when the bearing is running at high speed.
  • the inner ring body is a hollow and separate sleeve body
  • the inner ring body is placed on both sides of the motor rotor of the motor and fixedly connected with the rotating shaft.
  • the inner ring body is fixedly connected to the rotating shaft.
  • the surface of the hole is matched and fixedly connected with the outer surface of the rotating shaft, the inner ring body, the rotating shaft and the motor rotor rotate synchronously; when the inner ring body is an integral part of the solid shaft body, the inner ring body is placed on both sides of the motor rotor.
  • the ring body and the rotating shaft are an inseparable integral part.
  • the inner hole surface of the motor rotor is matched and fixedly connected with the outer surface of the rotating shaft, and the inner ring body, the rotating shaft and the motor rotor rotate synchronously.
  • the present invention proposes a series of new high-speed bearing structures using thin oil lubrication and the basic method of combining with the motor rotor.
  • the d m n corresponds to all existing thin oil lubrication methods.
  • the invention has the advantages of simple bearing structure, high-speed and ultra-high-speed running life of the bearing, simple lubrication system, low lubricating oil consumption, minimal pollution, no need for compressed air, etc.; by rationally designing the internal structure of the bearing, it can solve the high speed of horizontal working conditions. Thin oil lubrication can also solve high-speed thin oil lubrication in vertical and inclined working conditions.
  • the present invention uses self-excited oil mist pressurized lubrication angular thrust bearing to solve the problem of the existing deep groove ball bearing's weak axial load capacity while ensuring the lubrication effect, so that the bearing can work at a high speed.
  • FIG. 1 is a schematic diagram of the structure of the present invention in Embodiment 1.
  • FIG. 1 is a schematic diagram of the structure of the present invention in Embodiment 1.
  • FIG. 2 is a schematic diagram of the structure of the sealing assembly of the present invention in Embodiment 2.
  • FIG. 2 is a schematic diagram of the structure of the sealing assembly of the present invention in Embodiment 2.
  • FIG. 3 is a schematic diagram of the structure of the sealing assembly of the present invention in Embodiment 3.
  • FIG. 3 is a schematic diagram of the structure of the sealing assembly of the present invention in Embodiment 3.
  • FIG. 4 is a schematic diagram of the structure of the present invention in embodiment 4.
  • FIG. 4 is a schematic diagram of the structure of the present invention in embodiment 4.
  • FIG. 5 is a schematic diagram of the structure of the present invention in Embodiment 5.
  • FIG. 5 is a schematic diagram of the structure of the present invention in Embodiment 5.
  • FIG. 6 is a schematic diagram of the structure of the present invention in Embodiment 6.
  • FIG. 6 is a schematic diagram of the structure of the present invention in Embodiment 6.
  • FIG. 7 is a schematic diagram of the structure of the present invention in Embodiment 7.
  • FIG. 7 is a schematic diagram of the structure of the present invention in Embodiment 7.
  • FIG. 8 is a schematic diagram of the structure of the present invention in Embodiment 8.
  • FIG. 8 is a schematic diagram of the structure of the present invention in Embodiment 8.
  • FIG. 9 is a schematic diagram of the structure of the present invention in Embodiment 9.
  • FIG. 10 is a schematic diagram of the structure of the present invention in Embodiment 10.
  • FIG. 10 is a schematic diagram of the structure of the present invention in Embodiment 10.
  • FIG. 11 is a schematic diagram of the structure of the present invention in Embodiment 11.
  • FIG. 11 is a schematic diagram of the structure of the present invention in Embodiment 11.
  • FIG. 12 is a schematic diagram of the structure of the present invention in Embodiment 12.
  • Embodiment 13 is a schematic diagram of the structure of the present invention in Embodiment 13.
  • Embodiment 14 is a schematic diagram of the structure of the present invention in Embodiment 14.
  • Embodiment 1 as shown in Figure 1, a self-excited oil mist spray lubrication high-speed bearing, including an outer ring sleeve 8 and an inner ring body 4, the inner ring body 4 is located inside the outer ring sleeve 8, the inner ring body 4 and the outer ring sleeve 8 Coaxial line setting.
  • the inner surface of the outer ring sleeve 8 is provided with an outer raceway 19, and the outer surface of the inner ring body 4 is provided with an inner raceway 20.
  • the outer ring sleeve 8 and the inner ring body 4 are connected by a non-contact seal assembly 3 to prevent oil from overflowing.
  • An oil storage space 10 is provided on the inner wall of the outer ring sleeve 8.
  • the oil storage space 10 is a horizontal concave ring groove 24, horizontal
  • the concave ring groove 24 communicates with the lubrication hole 1 provided on the outer ring sleeve 8.
  • the outer surface of the inner ring body 4 is provided with a cage 6.
  • the cage 6 is evenly provided with semi-open pockets along the circumference.
  • the side provided with the pockets is the open side 9, which faces the horizontal concave ring groove 24, and the open side 9 is an open structure that is conducive to directly receiving the lubricating oil spray.
  • a rolling element 2 is provided in the pocket, and the rolling element 2 is a sphere.
  • the inner ring body 4 is a hollow separate sleeve body; the inner ring body 4 and the outer ring sleeve 8 are arranged horizontally, and the outer wall of the inner ring body 4 is provided with an annular protrusion 5 corresponding to the horizontal concave ring groove 24, and the protrusion 5
  • the shape of the surface setting is beneficial to enhance the impact force of the air surface layer.
  • the outer diameter d2 of the annular protrusion 5 is not less than the general diameter d1 of the inner ring body 4, and the size of d2 does not affect the free entry and exit of the inner ring body 4 inside the outer ring sleeve 8.
  • the two ends of the inner ring body 4 respectively extend out of the outer ring sleeve 8, and the two ends of the outer ring sleeve 8 are respectively connected with the inner ring body 4 through a gap of the sealing assembly 3, that is, the outer surface of the sealing assembly 3 and the inner ring body 4 is left
  • the slit 11 ensures that the inner ring body can rotate freely, and the horizontal concave ring groove 24 and the retainer 6 are located between the two sealing components 3. It enters the bearing from the lubrication hole 1 provided on the upper part of the outer ring sleeve, flows through the outer surface of the inner ring body 4 and is stored in the horizontal concave ring groove 24.
  • the outer surface of the inner ring body 4 is air-bound
  • the layer also rotates at a high speed, and continuously throws out the high-energy airflow to impact the oil stored in the horizontal concave ring groove 24, forming a spray effect of high-energy oil particles flying around, and a part of the high-energy oil particles are injected to the open side of the cage 9,
  • the rolling element 2 and the inner and outer raceways forcefully lubricate the friction pairs composed of the cage 6 and the rolling elements 2, the outer raceway 19 and the inner raceway 20, and maintain the inner ring body 4 to rotate at a high speed.
  • Embodiment 2 is a self-excited oil mist spray lubrication high-speed bearing.
  • the sealing assembly 3 includes an inner flat gasket 3-1, an outer flat gasket 3-4, and a special-shaped seal 3-2.
  • a slit 11 is provided between the flat pad 3-1, the outer flat pad 3-4, and the special-shaped seal 3-2 and the inner ring body, which does not affect the rotation of the outer body.
  • the special-shaped sealing element 3-2 is located between the inner flat gasket 3-1 and the outer flat gasket 3-4, and an O-shaped sealing ring 3-3 is arranged between the special-shaped sealing element 3-2 and the outer ring sleeve 8 to ensure the outer ring sleeve and the seal The tightness between components 3.
  • the outer end of the outer flat gasket 3-4 is provided with a retaining ring 3-6, and the retaining ring 3-6 is clamped between the outer ring sleeve 8 and the inner ring body 4 through a circlip 3-5.
  • a groove-like structure is formed at a position close to the surface of the inner ring body 4, which effectively prevents the oil from overflowing from the slit 11 between the sealing assembly 3 and the inner ring body 4.
  • the other structure is the same as the first embodiment.
  • the sealing assembly 3 includes a gap sealing body 3-7, that is, a slit is provided between the sealing body and the inner ring body 4 11, and does not affect the rotation of the outer body.
  • the gap sealing body 3-7 is clamped between the outer ring sleeve 8 and the inner ring body 4 by a circlip 3-5, and an O-shaped sealing ring 3-3 is arranged between the gap sealing body 3-7 and the outer ring sleeve 8 to improve the gap seal The tightness between the body 4 and the outer ring sleeve 8.
  • An oil groove 3-8 is provided on the surface of the gap sealing body 3-7 and the inner ring body 4, and the arrangement of the oil groove can effectively prevent the oil from overflowing from the slit 11 between the sealing body and the inner ring body 4.
  • the other structure is the same as the first embodiment.
  • Embodiment 4 as shown in Fig. 4, is a self-excited oil mist spray lubrication high-speed bearing.
  • the inner ring body of the bearing and the rotating shaft 12 together form an integral solid shaft body, and the outer ring sleeve 8 is arranged horizontally.
  • the oil storage space 10 is a horizontal concave ring groove 24, the solid shaft is provided with an inner race 20, and the outer race is provided with an outer race 19, the cage 6 is installed on the solid shaft, and the cage 6 is provided with a pocket
  • One side of the hole is an open side 9, the open side 9 faces the horizontal concave ring groove 24, and the open side 9 is an open structure that is conducive to directly receiving the lubricating oil spray.
  • Rolling bodies 2 are provided in the pockets.
  • the rolling elements 2 are matched with the inner and outer raceways respectively.
  • the two ends of the solid shaft body can respectively extend out of the outer ring 8 to be connected with other related units; or the tail of one end can be integrally sealed inside the outer ring 8.
  • the horizontal concave ring groove 24 and the holder 6 are located between the two sealing components 3.
  • the other structure is the same as that of Embodiment 2 or 3.
  • Embodiment 5 as shown in Figure 5, a self-excited oil mist spray lubrication high-speed bearing, the bearing is an angular contact bearing, including an outer ring sleeve 8 and an inner ring body 4, the inner ring body 4 is connected to the rotating shaft 12 Together they form an indivisible whole solid shaft.
  • the solid shaft body is located inside the outer ring sleeve 8, and the solid shaft body and the outer ring sleeve 8 are arranged coaxially and horizontally.
  • the inner surface of the outer ring sleeve 8 is provided with an outer raceway 19, and the outer surface of the solid shaft body is provided with an inner raceway 20, and the rolling elements 2 are matched with the outer raceway 19 and the inner raceway 20 respectively.
  • the axial pretension force 22 acts on the end surface 23 of the outer ring sleeve 8 so that the outer raceway 19 and the inner raceway 20 maintain a certain pretension force on the rolling element 2.
  • the outer ring sleeve 8 and the solid shaft body are connected by a non-contact seal assembly 3 to prevent oil from overflowing.
  • An oil storage space 10 is provided on the inner wall of the outer ring sleeve 8.
  • the oil storage space 10 is a horizontal concave ring groove 24 with a horizontal concave
  • the ring groove 24 communicates with the lubrication hole 1 provided on the outer ring sleeve 8.
  • the solid shaft body is provided with a cage 6 on the outer surface of the body.
  • the cage 6 is evenly provided with semi-open pockets along the circumference, and the cage 6 is provided with pockets.
  • One side of the hole is an open side 9, the open side 9 faces the horizontal concave ring groove 24, and the open side 9 is an open structure that is conducive to directly receiving the lubricating oil spray.
  • a rolling element 2 is provided in the pocket, and the rolling element 2 is a sphere. Both ends of the solid shaft body can respectively extend out of the outer ring 8 to be connected to other related units; or the tail of one end can be integrally sealed inside the outer ring 8.
  • the horizontal concave ring groove 24 and the holder 6 are located between the two sealing components 3.
  • the lubricating oil enters the bearing from the lubrication hole 1 provided on the upper part of the outer ring sleeve 8, flows through the outer surface of the solid shaft and is stored in the horizontal concave ring groove 24.
  • the air on the outer surface of the solid shaft is also attached to the bearing. It rotates together at high speed and continuously throws out the high-energy airflow to impact the oil stored in the horizontal concave ring groove 24, forming a spray effect of high-energy oil particles flying around, and a part of the high-energy oil particles are injected to the open side of the cage 9.
  • Rolling elements 2 and the inner and outer raceways, the friction pairs composed of the cage 6 and the rolling elements 2, the outer raceway 19 and the inner raceway 20 are forcedly lubricated to maintain the solid shaft rotating at a high speed.
  • the other structure is the same as that of Embodiment 2 or 3.
  • Embodiment 6, as shown in Fig. 6, is an application of a self-excited oil mist spray lubrication high-speed bearing in a motor.
  • the bearings described in embodiment 4 are arranged on both sides of the motor rotor 16.
  • the bearings are deep groove ball bearings and the rotating shaft 12 and the two inner ring bodies 4 separately arranged on both sides of the motor rotor 16 form an indivisible integral solid shaft body, the solid shaft body and the outer ring sleeve 8 are arranged horizontally, and the oil storage space 10 is a horizontal concave ring groove 24, solid
  • An inner raceway 20 is provided on the outer surface of the shaft body, and an outer raceway 19 is provided on the inner surface of the outer ring sleeve 8.
  • the cage 6 is mounted on a solid shaft.
  • the side of the cage 6 with pockets is the open side 9, the open side 9 faces the horizontal concave ring groove 24, and the open side 9 is the opening that is conducive to directly receiving the lubricating oil spray.
  • Type structure There are rolling elements 2 in the pockets, the rolling elements 2 are spheres, and the rolling elements 2 are matched with the inner and outer raceways respectively.
  • the inner hole of the motor rotor 16 is matched and fixedly connected with the outer surface of the solid shaft body, and the solid shaft body and the motor rotor 16 rotate synchronously.
  • the outer ring sleeves 8 at both ends of the motor rotor need to be installed with a certain degree of coaxiality to prevent the solid shaft from rubbing against adjacent components and hindering the rotation of the rotor.
  • the lubricating oil enters the bearing from the lubricating hole 1 arranged on the upper part of the outer ring sleeve 8, flows through the outer surface of the inner ring body 4 and then is stored in the horizontal concave ring groove 24.
  • the lubricating oil motor rotor 16 is driven by the electromagnetic force of the motor to drive the rotating shaft 12 Rotating at high speed with the inner ring body 4 on both sides, the air surface layer on the outer surface of the inner ring body 4 also rotates at a high speed, and continuously throws out high-energy airflow to impact the oil stored in the horizontal concave ring groove 24, forming high-energy oil particles
  • the spray effect of flying around, a part of the high-energy oil particles are sprayed to the open side of the cage 9, the rolling elements 2, and the inner and outer raceways.
  • the cage 6 and the rolling elements 2, the outer raceway 19, and the inner raceway 20 are combined.
  • the friction pair is forced to be lubricated to maintain the inner ring body 4 to rotate at a high speed.
  • Embodiment 7 as shown in Fig. 7, a self-excited oil mist spray lubrication high-speed bearing, the bearing outer ring 8 is inclined or vertically arranged, and the oil storage space 10 is a plurality of upwardly inclined inclined ring grooves 15 which are inclined
  • the upward inclination angle of the ring groove 15 is 5° ⁇ 85°, and it is better that the oil is not easy to overflow.
  • the oil storage space 10 can also be used under horizontal working conditions.
  • At least one inclined ring groove 15 is provided on the inner wall of the outer ring sleeve 8, and the lubricating hole 1 is located at the upper part of the inclined ring groove 15 at the topmost end.
  • the lubricating oil When the lubricating oil is refueled through the lubrication hole 1, the lubricating oil should flow downward along the inner wall of the outer ring sleeve 8, gradually filling all the inclined ring grooves 15.
  • the inner ring body 4 and the rotating shaft 12 together form an inseparable integral solid Shaft body, the outer surface of the solid shaft body is provided with an inner raceway 20, the outer ring sleeve is provided with an outer raceway 19, the cage 6 is installed on the outer surface of the solid shaft body, and the side of the cage 6 with pockets is the open side 9 ,
  • the open side 9 faces the inclined ring groove 15, and the open side 9 is an open structure that is conducive to directly receiving the lubricating oil spray.
  • Rolling bodies 2 are provided in the pockets.
  • the rolling elements 2 are matched with the inner and outer raceways respectively.
  • the inclined ring groove 15 and the holder 6 are located between the two sealing components. Both ends of the solid shaft body can respectively extend out of the outer ring 8 to be connected to other related units; or the tail of one end can be integrally sealed inside the outer ring 8.
  • the air surface layer on the outer surface of the solid shaft also rotates at a high speed, and continuously throws out high-energy airflow to impact the oil stored in the inclined ring groove 15, forming a spray effect of high-energy oil particles flying around.
  • the other structure is the same as that of Embodiment 2 or 3.
  • Embodiment 8 as shown in Fig. 8, an application of a self-excited oil mist spray lubrication high-speed bearing in a motor.
  • the bearings described in embodiment 7 are arranged on both sides of the motor rotor 16.
  • the bearings are deep groove ball bearings and the rotating shaft 12 and the two inner ring bodies 4 separated on both sides of the motor rotor 16 form an indivisible integral solid shaft body, the solid shaft body and the outer ring sleeve 8 are inclined or vertically arranged, and the oil storage space 10 is an upwardly inclined inclined ring
  • the groove 15 and the inclined ring groove 15 are inclined upward at an angle of 5° ⁇ 85°, so that the oil is not easy to overflow.
  • the oil storage space 10 can also be used under horizontal working conditions.
  • the lubrication hole 1 is arranged at the top of all the inclined ring grooves 15.
  • the oil should be directed along the inner wall of the outer ring sleeve 8. Downstream, gradually fill up all the inclined ring grooves 15.
  • An inner raceway 20 is provided on the outer surface of the solid shaft body, and an outer raceway 19 is provided on the inner surface of the outer ring sleeve 8.
  • the cage 6 is mounted on a solid shaft.
  • the side of the cage 6 with pockets is the open side 9, the open side 9 faces the horizontal concave ring groove 24, and the open side 9 is the opening that is conducive to directly receiving the lubricating oil spray.
  • Type structure There are rolling elements 2 in the pockets, the rolling elements 2 are spheres, and the rolling elements 2 are matched with the inner and outer raceways respectively.
  • the inner hole of the motor rotor 16 is matched and fixedly connected with the outer surface of the solid shaft body, and the solid shaft body and the motor rotor 16 rotate synchronously.
  • the outer ring sleeves 8 at both ends of the motor rotor need to be installed with a certain degree of coaxiality to prevent the solid shaft from rubbing against adjacent components and hindering the rotation of the rotor.
  • the rolling elements 2 of each bearing are arranged under all the inclined ring grooves 15 in the bearing.
  • the motor rotor 16 is driven by the electromagnetic force of the motor to drive the rotating shaft 12 and the inner ring body 4 on both sides to rotate at a high speed.
  • the air surface layer on the outer surface of the inner ring body 4 also rotates at a high speed, and continuously throws out high-energy airflow to impact the tilt ring
  • the oil stored in the groove 15 forms a spray effect of high-energy oil particles flying around. Part of the high-energy oil particles are injected to the open side 9 of the cage, the rolling elements 2, the outer race 19 and the inner race 20, for forced lubrication to maintain the inner
  • the ring body 4 rotates at high speed.
  • the high-speed rotation of the internal parts of the bearing and the high-speed air surface layer continuously give sufficient kinetic energy to the lubricating oil particles to maintain the high-speed movement of most lubricating oil particles inside the bearing.
  • the centrifugal force acts when the bearing stops rotating. A considerable part of the lubricating oil still remains in the inclined ring groove 15.
  • Embodiment 9, as shown in Fig. 9, is a self-excited oil mist spray lubricated high-speed bearing.
  • the bearing is an angular contact bearing and includes an outer ring sleeve 8 and an inner ring body 4.
  • the inner ring body 4 is a hollow single sleeve body.
  • the inner ring body 4 is located inside the outer ring sleeve 8, and the inner ring body 4 and the outer ring sleeve 8 are arranged coaxially and horizontally. Both ends of the inner ring body 4 extend out of the outer ring sleeve 8.
  • the inner surface of the outer ring sleeve 8 is provided with an outer race 19
  • the outer surface of the inner ring body 4 is provided with an inner raceway 20, and the rolling bodies 2 are matched with the outer raceway 19 and the inner raceway 20 respectively.
  • the inner ring body 4 bears on the shaft shoulder 21, and the axial pre-tightening force 22 acts on the end surface 23 of the outer ring sleeve 8 so that the outer race 19 and the inner race 20 maintain a certain pre-tightening force on the rolling elements 2.
  • the outer ring sleeve 8 and the inner ring body 4 are connected by a non-contact seal assembly 3 to prevent oil from overflowing.
  • An oil storage space 10 is provided on the inner wall of the outer ring sleeve 8.
  • the oil storage space 10 is a horizontal concave ring groove 24, horizontal
  • the concave ring groove 24 communicates with the lubrication hole 1 provided on the outer ring sleeve 8.
  • the outer surface of the inner ring body 4 is provided with a cage 6.
  • the cage 6 is evenly provided with semi-open pockets along the circumference.
  • the side provided with the pockets is the open side 9, which faces the horizontal concave ring groove 24, and the open side 9 is an open structure that is conducive to directly receiving the lubricating oil spray.
  • a rolling element 2 is provided in the pocket, and the rolling element 2 is a sphere.
  • the inner ring body 4 is a hollow separate sleeve body; the inner ring body 4 and the outer ring sleeve 8 are arranged horizontally.
  • the two ends of the outer ring sleeve 8 are respectively connected with the inner ring body 4 through the gap of the sealing assembly 3, that is, there are slits 11 on the outer surface of the sealing assembly 3 and the inner ring 4 to ensure the free rotation of the inner ring body, and the horizontal concave ring groove 24 and the holder 6 are located between the two sealing components 3.
  • the lubricating oil enters the bearing from the lubrication hole 1 provided on the upper part of the outer ring sleeve 8, flows through the outer surface of the inner ring body 4, and is stored in the horizontal concave ring groove 24.
  • the other structure is the same as that of Embodiment 2 or 3.
  • Embodiment 10 as shown in FIG. 10, is an application of a self-excited oil mist spray lubrication high-speed bearing in a motor.
  • the bearings described in Embodiment 9 are arranged on both sides of the motor rotor 16, and the bearings are angular contact bearings.
  • the inner ring body 4 is a hollow separate sleeve body; the inner ring body 4 is separately placed on both sides of the motor rotor 16 of the motor and is fixedly connected to the rotating shaft 12, and the inner hole surface of the motor rotor 16 matches the outer surface of the rotating shaft 12 Combined with a fixed connection, the inner ring body 4, the rotating shaft 12 and the motor rotor 16 rotate synchronously; the inner ring body 4 and the outer ring sleeve 8 are arranged horizontally, the oil storage space 10 is a horizontal concave ring groove 24, and the outer surface of the inner ring body 4 is provided There is an inner raceway 20, the inner surface of the outer ring sleeve 8 is provided with an outer raceway 19, and the rolling elements 2 are matched with the outer raceway 19 and the inner raceway 20 respectively.
  • the inner ring body 4 bears on the shaft shoulder 21, and the axial pre-tightening force 22 acts on the end surface 23 of the outer ring sleeve 8 so that the outer race 19 and the inner race 20 maintain a certain pre-tightening force on the rolling elements 2.
  • the cage 6 is installed on the inner ring body 4, the side with pockets on the cage 6 is the open side 9, the open side 9 faces the horizontal concave ring groove 24, and the open side 9 is conducive to directly receiving the lubricating oil spray Open structure.
  • the outer ring sleeves 8 at both ends of the motor rotor need to be installed with a certain degree of coaxiality to prevent the inner ring body 4 from rubbing against adjacent components and hindering the rotation of the rotor.
  • the axial stress generated by the front bearing 27 on the rotating shaft 12 and the axial stress generated by the rear bearing 27a on the rotating shaft 12 have opposite directions and cancel each other.
  • the lubricating oil enters the bearing from the lubricating hole 1 arranged on the upper part of the outer ring sleeve 8, flows through the outer surface of the inner ring body 4 and then is stored in the horizontal concave ring groove 24.
  • the lubricating oil motor rotor 16 is driven by the electromagnetic force of the motor to drive the rotating shaft 12 Rotating at high speed with the inner ring body 4 on both sides, the air surface layer on the outer surface of the inner ring body 4 also rotates at a high speed, and continuously throws out high-energy airflow to impact the oil stored in the horizontal concave ring groove 24, forming high-energy oil particles
  • the spray effect of flying around, a part of the high-energy oil particles are sprayed to the open side of the cage 9, the rolling elements 2, and the inner and outer raceways.
  • the cage 6 and the rolling elements 2, the outer raceway 19, and the inner raceway 20 are combined.
  • the friction pair is forced to be lubricated to maintain the inner ring body 4 to rotate at
  • Embodiment 11 is an application of a self-excited oil mist spray lubrication high-speed bearing in a motor.
  • the bearings described in Embodiment 9 are arranged on both sides of the motor rotor 16, and the bearings are angular contact bearings.
  • the rotating shaft 12 and the two inner ring bodies 4 separated on both sides of the motor rotor 16 form an indivisible integral solid shaft body.
  • the inner hole surface of the motor rotor 16 matches and is fixedly connected with the outer surface of the solid shaft body.
  • the motor rotor 16 rotates synchronously; the solid shaft body and the outer ring 8 are arranged horizontally, the oil storage space 10 is a horizontal concave ring groove 24, the solid shaft body is provided with an inner race 20 on the outer surface, and the outer ring 8 is provided with an outer race on the inner surface 19.
  • the rolling elements 2 are matched with the outer raceway 19 and the inner raceway 20 respectively.
  • the axial pretension force 22 acts on the end surface 23 of the outer ring sleeve 8 so that the outer raceway 19 and the inner raceway 20 maintain a certain pretension force on the rolling element 2.
  • the cage 6 is mounted on a solid shaft.
  • the side of the cage 6 with pockets is the open side 9, the open side 9 faces the horizontal concave ring groove 24, and the open side 9 is the opening that is conducive to directly receiving the lubricating oil spray.
  • Type structure There are rolling elements 2 in the pockets, the rolling elements 2 are spheres, and the rolling elements 2 are matched with the inner and outer raceways respectively.
  • the outer ring sleeves 8 at both ends of the motor rotor need to be installed with a certain degree of coaxiality to prevent the solid shaft from rubbing against adjacent components and hindering the rotation of the rotor.
  • the axial stress generated by the front bearing 27 on the rotating shaft 12 and the axial stress generated by the rear bearing 27a on the rotating shaft 12 have opposite directions and cancel each other.
  • the lubricating oil enters the bearing from the lubricating hole 1 provided on the upper part of the outer ring sleeve 8, flows through the outer surface of the solid shaft and is stored in the horizontal concave ring groove 24.
  • the lubricating oil motor rotor 16 is driven by the electromagnetic force of the motor to drive the solid shaft to rotate at a high speed.
  • the air surface layer on the outer surface of the solid shaft also rotates at a high speed, and constantly throws out the high-energy airflow to impact the oil stored in the horizontal concave ring groove 24, forming a spray effect of high-energy oil particles flying around, and a part of the high-energy oil particles Spray to the open side of the cage 9, the rolling elements 2, and the inner and outer raceways, to force the lubrication of the friction pairs composed of the cage 6 and the rolling elements 2, the outer raceway 19, and the inner raceway 20 to maintain the solid shaft at high speed Spin.
  • Embodiment 12 as shown in Figure 12, a self-excited oil mist spray lubrication high-speed bearing, the bearing is an angular contact bearing, the outer ring sleeve 8 is inclined or vertically arranged, and the oil storage space 10 is a plurality of upwardly inclined inclined
  • the upward inclination angle of the ring groove 15 and the inclined ring groove 15 is 5° ⁇ 85°, so that the oil is not easy to overflow.
  • the oil storage space 10 can also be used under horizontal working conditions.
  • At least one inclined ring groove 15 is provided on the inner wall of the outer ring sleeve 8, and the lubricating hole 1 is located at the upper part of the inclined ring groove 15 at the topmost end.
  • the inner ring body 4 is a hollow separate sleeve body, and the outer surface of the inner ring body 4 is provided with There is an inner raceway 20, an outer raceway 19 is provided in the outer ring sleeve, and the rolling elements 2 are matched with the outer raceway 19 and the inner raceway 20 respectively.
  • the two ends of the inner ring body 4 respectively extend out of the outer ring sleeve 8.
  • the inner ring body 4 rests on the shoulder 21, and the axial pre-tightening force 22 acts on the end surface 23 of the outer ring sleeve 8 to make the outer race 19 and the inner race 20 Keep a certain pretension on the rolling element 2.
  • the cage 6 is installed on the outer surface of the inner ring body 4, the side with pockets on the cage 6 is the open side 9, the open side 9 faces the inclined ring groove 15, and the open side 9 is conducive to directly receiving the lubricating oil spray Open structure.
  • Rolling bodies 2 are provided in the pockets. The rolling elements 2 are matched with the inner and outer raceways respectively.
  • the inclined ring groove 15 and the holder 6 are located between the two sealing components.
  • the air surface layer on the outer surface of the inner ring body 4 also rotates at a high speed, and continuously throws out high-energy airflow to impact the oil stored in the inclined ring groove 15, forming high-energy oil particles everywhere.
  • the jet effect of flying some high-energy oil particles are injected to the open side 9, the rolling elements 2, the outer race 19 and the inner race 20, for forced lubrication, to maintain the high-speed rotation of the inner ring body 4, and the high-speed rotation of the internal parts of the bearing.
  • the high-speed air surface layer continuously imparts sufficient kinetic energy to the lubricating oil particles to maintain the high-speed movement of most lubricating oil particles inside the bearing.
  • the centrifugal force causes a considerable part of the lubricating oil to remain in the inclined ring groove 15 .
  • the other structure is the same as that of the seventh embodiment.
  • Embodiment 13 is an application of a self-excited oil mist spray lubrication high-speed bearing in a motor.
  • the bearing described in embodiment 12 is provided on both sides of the motor rotor 16.
  • the bearing is an angular contact bearing, and the inner
  • the ring body 4 is a hollow single sleeve body; the inner ring body 4 is placed on both sides of the motor rotor 16 of the motor and is fixedly connected to the rotating shaft 12, and the inner hole surface of the motor rotor 16 matches and is fixedly connected to the outer surface of the rotating shaft 12 ,
  • the inner ring body 4, the rotating shaft 12 and the motor rotor 16 rotate synchronously; the inner ring body 4 and the outer ring sleeve 8 are inclined or vertically arranged, the oil storage space 10 is an upwardly inclined inclined ring groove 15, and the inclined ring groove 15 is inclined upwardly The angle is 5° ⁇ 85°, so the oil is not easy to overflow.
  • the oil storage space 10 can also be used under horizontal working conditions.
  • the lubrication hole 1 is arranged at the top of all the inclined ring grooves 15. When the lubricating oil is added through the lubricating hole 1, the oil should be directed along the inner wall of the outer ring sleeve 8. Downstream, gradually fill up all the inclined ring grooves 15.
  • the outer surface of the inner ring body 4 is provided with an inner raceway 20, and the inner surface of the outer ring sleeve 8 is provided with an outer raceway 19.
  • the cage 6 is mounted on a solid shaft.
  • the side of the cage 6 with pockets is the open side 9, the open side 9 faces the horizontal concave ring groove 24, and the open side 9 is the opening that is conducive to directly receiving the lubricating oil spray.
  • Type structure There are rolling elements 2 in the pockets, the rolling elements 2 are spheres, and the rolling elements 2 are matched with the inner and outer raceways respectively.
  • the outer ring sleeves 8 at both ends of the motor rotor need to be installed with a certain degree of coaxiality to prevent the solid shaft from rubbing against adjacent components and hindering the rotation of the rotor.
  • the rolling elements 2 of each bearing are arranged under all the inclined ring grooves 15 in the bearing.
  • the axial stress generated by the front bearing 27 on the rotating shaft 12 and the axial stress generated by the rear bearing 27a on the rotating shaft 12 have opposite directions and cancel each other.
  • the motor rotor 16 is driven by the electromagnetic force of the motor to drive the rotating shaft 12 and the inner ring body 4 on both sides to rotate at a high speed.
  • the air surface layer on the outer surface of the inner ring body 4 also rotates at a high speed, and continuously throws out high-energy airflow to impact the tilt ring
  • the oil stored in the groove 15 forms a spray effect of high-energy oil particles flying around. Part of the high-energy oil particles are injected to the open side 9 of the cage, the rolling elements 2, the outer race 19 and the inner race 20, for forced lubrication to maintain the inner
  • the ring body 4 rotates at high speed.
  • the high-speed rotation of the internal parts of the bearing and the high-speed air surface layer continuously give sufficient kinetic energy to the lubricating oil particles to maintain the high-speed movement of most lubricating oil particles inside the bearing.
  • the centrifugal force acts when the bearing stops rotating. A considerable part of the lubricating oil still remains in the inclined ring groove 15.
  • Embodiment 14 is an application of a self-excited oil mist spray lubrication high-speed bearing in a motor.
  • the bearings described in embodiment 12 are arranged on both sides of the motor rotor 16, and the bearings are angular contact bearings.
  • the rotating shaft 12 and the two inner ring bodies 4 separated on both sides of the motor rotor 16 form an indivisible integral solid shaft body.
  • the inner hole surface of the motor rotor 16 matches and is fixedly connected with the outer surface of the solid shaft body.
  • the motor rotor 16 rotates synchronously; the solid shaft body and the outer ring 8 are inclined or vertically arranged, the oil storage space 10 is an upwardly inclined inclined ring groove 15, and the inclined ring groove 15 is inclined upward at an angle of 5° ⁇ 85°. It is advisable that the liquid is not easy to overflow.
  • the oil storage space 10 can also be used under horizontal working conditions.
  • the lubrication hole 1 is arranged at the top of all the inclined ring grooves 15. When the lubricating oil is added through the lubricating hole 1, the oil should be directed along the inner wall of the outer ring sleeve 8.
  • An inner raceway 20 is provided on the outer surface of the solid shaft body, and an outer raceway 19 is provided on the inner surface of the outer ring sleeve 8.
  • the cage 6 is mounted on a solid shaft.
  • the side of the cage 6 with pockets is the open side 9, the open side 9 faces the horizontal concave ring groove 24, and the open side 9 is the opening that is conducive to directly receiving the lubricating oil spray.
  • Type structure There are rolling elements 2 in the pockets, the rolling elements 2 are spheres, and the rolling elements 2 are matched with the inner and outer raceways respectively.
  • the outer ring sleeves 8 at both ends of the motor rotor need to be installed with a certain degree of coaxiality to prevent the solid shaft from rubbing against adjacent components and hindering the rotation of the rotor.
  • the rolling elements 2 of each bearing are arranged under all the inclined ring grooves 15 in the bearing.
  • the axial stress generated by the front bearing 27 on the solid shaft and the axial stress generated by the rear bearing 27a on the solid shaft are in opposite directions and cancel each other.
  • the motor rotor 16 is driven by the electromagnetic force of the motor to drive the solid shaft body to rotate at a high speed.
  • the air surface layer on the outer surface of the solid shaft body also rotates at a high speed, and continuously throws out high-energy airflow to impact the oil stored in the inclined ring groove 15 to form high energy
  • the spray effect of oil particles flying around, some of the high-energy oil particles are injected to the open side of the cage 9, the rolling elements 2, the outer race 19 and the inner race 20, for forced lubrication to maintain the high-speed rotation of the solid shaft, and the internal parts of the bearing
  • the high-speed rotation and high-speed air surface layer continuously gives sufficient kinetic energy to the lubricating oil particles to maintain the high-speed movement of most of the lubricating oil particles inside the bearing.
  • the centrifugal force causes a considerable part of the lubricating oil to remain in the tilting ring.
  • Lubricating oil periodically enters between the outer ring 8 and the inner ring body 4 from the lubrication hole 1 provided on the outer ring 8 and is stored in the oil storage space 10;
  • step S3 In step S2, when the inner ring body 4 rotates at a high speed, the sealing assembly 3 and the outer surface of the inner ring body 4 produce a vortex sealing effect at the slit 11 adjacent to the outer surface of the inner ring body 4 to seal the oil.
  • step S1 the lubricating oil periodically enters between the outer ring sleeve 8 and the inner ring body 4, and it must be satisfied that sufficient lubricating oil is kept in the oil storage space 10 when the bearing is in a static state, and the lubricating oil does not flow from the seal assembly 3 and The slit 11 between the inner ring bodies 4 overflows, so as to maintain the self-excited jet lubrication effect when the bearing is running at high speed.

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

Abstract

L'invention concerne un palier à grande vitesse susceptible d'une pulvérisation auto-activée d'une lubrification de brouillard d'huile, un procédé de lubrification et une application pour des moteurs. Le palier à grande vitesse comprend un manchon annulaire externe (8) et un élément annulaire interne (4). Deux extrémités du manchon annulaire externe (8) sont reliées à l'élément annulaire interne (4) par l'intermédiaire de composants d'étanchéité de type sans contact (3). Un espace de stockage d'huile (10) et un cadre de retenue (6) sont prévus entre le manchon annulaire externe (8) et l'élément annulaire interne (4). L'espace de stockage d'huile (10) et le cadre de retenue (6) sont situés entre deux composants d'étanchéité (3). Un élément roulant (2) est prévu sur le cadre de retenue (6). L'espace de stockage d'huile (10) correspond à un côté du cadre de retenue (2) doté de l'élément roulant (2). Le palier présente comme avantages une simplicité structurelle, une longue durée de vie dans des opérations à grande vitesse et à ultra-grande vitesse, une conception simple d'un système de lubrification, une faible consommation de lubrifiant, l'élimination du besoin d'air comprimé et autres. La disposition du palier sur deux côtés d'un rotor de moteur améliore la vitesse de rotation du moteur, sans utiliser de système de lubrification complexe ni consommer une grande quantité de lubrifiant.
PCT/CN2020/105456 2019-08-30 2020-07-29 Palier à grande vitesse susceptible d'une pulvérisation auto-activée d'une lubrification de brouillard d'huile, procédé de lubrification et application WO2021036657A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201910813303.8A CN110566573A (zh) 2019-08-30 2019-08-30 自激式油雾喷射润滑高速轴承、润滑方法及应用
CN201910813303.8 2019-08-30
CN201921429180.X 2019-08-30
CN201921429180.XU CN210461382U (zh) 2019-08-30 2019-08-30 一种自激式油雾喷射润滑高速轴承

Publications (1)

Publication Number Publication Date
WO2021036657A1 true WO2021036657A1 (fr) 2021-03-04

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PCT/CN2020/105456 WO2021036657A1 (fr) 2019-08-30 2020-07-29 Palier à grande vitesse susceptible d'une pulvérisation auto-activée d'une lubrification de brouillard d'huile, procédé de lubrification et application

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WO (1) WO2021036657A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014105832A (ja) * 2012-11-29 2014-06-09 Jtekt Corp 転がり軸受装置
CN104019136A (zh) * 2013-03-01 2014-09-03 株式会社捷太格特 滚动轴承装置
CN104110440A (zh) * 2013-04-19 2014-10-22 株式会社捷太格特 滚动轴承装置
CN105003543A (zh) * 2014-04-15 2015-10-28 株式会社捷太格特 滚动轴承装置
CN105317845A (zh) * 2014-07-16 2016-02-10 株式会社捷太格特 滚珠轴承
CN110566573A (zh) * 2019-08-30 2019-12-13 张志刚 自激式油雾喷射润滑高速轴承、润滑方法及应用
CN210461382U (zh) * 2019-08-30 2020-05-05 张志刚 一种自激式油雾喷射润滑高速轴承

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014105832A (ja) * 2012-11-29 2014-06-09 Jtekt Corp 転がり軸受装置
CN104019136A (zh) * 2013-03-01 2014-09-03 株式会社捷太格特 滚动轴承装置
CN104110440A (zh) * 2013-04-19 2014-10-22 株式会社捷太格特 滚动轴承装置
CN105003543A (zh) * 2014-04-15 2015-10-28 株式会社捷太格特 滚动轴承装置
CN105317845A (zh) * 2014-07-16 2016-02-10 株式会社捷太格特 滚珠轴承
CN110566573A (zh) * 2019-08-30 2019-12-13 张志刚 自激式油雾喷射润滑高速轴承、润滑方法及应用
CN210461382U (zh) * 2019-08-30 2020-05-05 张志刚 一种自激式油雾喷射润滑高速轴承

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