WO2018120130A1 - Palier lisse - Google Patents

Palier lisse Download PDF

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Publication number
WO2018120130A1
WO2018120130A1 PCT/CN2016/113759 CN2016113759W WO2018120130A1 WO 2018120130 A1 WO2018120130 A1 WO 2018120130A1 CN 2016113759 W CN2016113759 W CN 2016113759W WO 2018120130 A1 WO2018120130 A1 WO 2018120130A1
Authority
WO
WIPO (PCT)
Prior art keywords
axial
groove
support portion
oil
side wall
Prior art date
Application number
PCT/CN2016/113759
Other languages
English (en)
Chinese (zh)
Inventor
李春辉
潘晓聪
Original Assignee
深圳智慧能源技术有限公司
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 深圳智慧能源技术有限公司 filed Critical 深圳智慧能源技术有限公司
Priority to PCT/CN2016/113759 priority Critical patent/WO2018120130A1/fr
Publication of WO2018120130A1 publication Critical patent/WO2018120130A1/fr

Links

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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings

Definitions

  • the present invention relates to a bearing structure, and more particularly to a sliding bearing that can be used at an ultra high speed.
  • a plain bearing is a bearing that operates under sliding friction. Sliding bearings work smoothly, reliably, and without noise, so they are widely used in rotating machinery. Under liquid lubrication conditions, the sliding surface is divided by the lubricating oil without direct contact, and the friction loss and surface wear can be greatly reduced. The oil film between the bearing and the rotating body also has a certain vibration absorbing capability. The industry has been improving the sliding bearings and hopes to reduce the loss of the sliding bearings, oil temperature and resistance to adapt to ultra-high speed applications.
  • the present invention proposes a solution to the problem of a sliding bearing capable of reducing the loss of the sliding bearing, oil temperature and resistance.
  • the present invention provides a sliding bearing having a shaft hole through which a rotating shaft is bored.
  • the sliding bearing has an axial bearing portion for engaging with a thrust plate fixed on the rotating shaft, so that when the rotating shaft rotates in a rotating direction, the axial bearing portion An oil film is formed between the thrust disk and the rotating shaft to support the rotating shaft in the axial direction.
  • the axial support portion is provided with a plurality of oil drain grooves, and each of the oil drain grooves comprises a groove bottom surface, a first side wall surface and a second side wall surface. The first side wall surface is located on a side of the bottom surface of the groove in the rotation direction, and the second side wall surface is located on a side of the groove bottom surface opposite to the rotation direction.
  • the first side wall surface has a bottom edge that is in contact with the bottom surface of the groove and a top edge that is in contact with the axial support portion, and the first side wall surface is in a direction from the bottom edge to the top edge
  • the upper side extends obliquely along a curved surface along the rotating direction.
  • each oil drain groove extends from an inner edge of the axial support portion toward an outer edge of the axial support portion such that the plurality of oil drain grooves are on the axial support portion Radial and evenly spaced in the circumferential direction of the axial support.
  • each drain groove extends from an inner edge of the axial support portion toward an outer edge of the axial support portion, and each drain groove includes a first section near the inner edge The oil groove and the second oil drain groove near the outer edge, the bottom surface of the second oil drain groove gradually increases in a direction toward the outer edge.
  • the sliding bearing is provided with a radial oil inlet hole.
  • the radial oil inlet communicates with an outer peripheral surface of the sliding bearing and the shaft hole such that lubricating oil can enter the shaft hole through the radial oil inlet hole.
  • the inner wall surface of the shaft hole is provided with at least one oil guiding groove, the axial bearing portion is provided with an annular groove at an edge of the shaft hole, the oil guiding groove is in communication with the annular groove, and the plurality of oil draining grooves and Ring groove connection
  • an outer peripheral surface of the axial support portion forms a plane, and the plane is configured to form a drain hole with a fixing member that fixes the sliding bearing, and the drain hole and the drain hole
  • the plurality of drain tanks are in fluid communication such that lubricating oil in the plurality of drain tanks can flow back to the oil return tank through the drain holes.
  • the axial support portion forms a slope portion and a flat portion between adjacent two drain grooves.
  • a circumferential side of the inclined surface portion is in contact with a first side wall surface of one of the adjacent oil drain grooves
  • another circumferential side of the inclined surface portion is in contact with a circumferential side of the planar portion
  • the planar portion is further One side of the one-way side is in contact with the second side wall surface of another adjacent drain groove.
  • the height of the inclined surface portion with respect to the bottom surface of the groove increases in the circumferential direction toward the flat portion, and the height of the inclined surface increases in the radially outward direction.
  • a difference in height between the circumferential sides of the inclined surface portion with respect to the bottom surface of the groove is greater than or equal to 0.04 mm, but less than or equal to 0.1 mm. In a preferred embodiment, the height difference is greater than or equal to 0.05 mm, but less than or equal to 0.06 mm. In a more preferred embodiment, the height difference is 0.06 mm.
  • the sliding bearing has opposite axial end faces, the axial bearing portion is disposed on one of the axial end faces, and the sliding bearing further comprises a second axial end face. a second axial support.
  • the second axial support portion is configured to cooperate with a second thrust plate fixed on the rotating shaft, such that when the rotating shaft rotates in the rotating direction, the second axial bearing portion and the first An oil film is formed between the two thrust plates to support the rotating shaft in the axial direction.
  • the second axial support portion is provided with a plurality of second oil drain grooves, and each of the second oil drain grooves extends from an inner edge of the second axial support portion toward an outer edge of the second axial support portion.
  • Each of the second oil drain grooves includes a groove bottom surface, a first side wall surface, and a second side wall surface.
  • a first side wall surface of the second oil drain groove is located on a side of the bottom surface of the groove along the rotation direction
  • the second a second side wall surface of the oil drain groove is located on a side opposite to the rotation direction of the bottom surface of the groove
  • a first side wall surface of the second oil drain groove has a bottom edge that is in contact with the bottom surface of the groove and The top edge of the two axial support portions meets.
  • the first side wall surface of the second oil drain groove extends obliquely along a curved surface in a direction from the bottom edge of the second oil drain groove toward the top edge along the rotation direction.
  • the sliding bearing has opposite axial end faces, the axial bearing portion is disposed on one of the axial end faces, and the sliding bearing further comprises a second axial end face. a second axial support.
  • the second axial support portion is configured to cooperate with a second thrust plate fixed on the rotating shaft, such that when the rotating shaft rotates in the rotating direction, the second axial bearing portion and the first An oil film is formed between the two thrust plates to support the rotating shaft in the axial direction.
  • the axial support portion has a circular bearing surface
  • the second axial bearing portion has a circular bearing surface
  • the circular bearing faces have different diameters.
  • embodiments of the present invention provide a sliding bearing that can withstand axial and radial forces of rotation of a rotating shaft.
  • the wall surface of the oil drain groove on the axial bearing portion of the sliding bearing is optimized by the curvature, so that the sliding bearing loss is smaller, the oil temperature is lower, and the resistance is smaller, which is particularly suitable for use in bearings with severe requirements or ultra-high speed conditions.
  • FIG. 1 is a schematic view of a rotating assembly using a sliding bearing according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of a sliding bearing of the rotating assembly of FIG. 1.
  • FIG. 3 is a perspective view of another angle of the sliding bearing of the rotating assembly of FIG. 1.
  • FIG. 4 is a plan view of an axial bearing portion of the sliding bearing of FIG. 1.
  • a rotating assembly includes a sliding bearing 10 and a rotating shaft 12 rotatable relative to the sliding bearing 10.
  • the sliding bearing 10 supports the rotating shaft 12 in the axial direction and the radial direction.
  • the sliding bearing 10 has opposite end faces 14, and the shaft hole 16 penetrates the sliding bearing 10 in the axial direction to communicate the both end faces 14.
  • the shaft hole 16 is provided for the shaft 12 to be rotated, and supports the rotation of the shaft 12. Therefore, the portion where the shaft hole 16 is located constitutes a radial support portion.
  • the sliding bearing 10 forms at least one axial support portion on both end faces.
  • the sliding bearing 10 is provided with a first axial bearing portion 18 and a second axial bearing portion 20, respectively, on both end faces.
  • the first thrust disc 22 and the second thrust disc 24 are fixedly connected to the rotating shaft 12.
  • the first axial support portion 18 is configured to cooperate with the first thrust plate 22 such that when the rotary shaft 12 is rotated in a rotational direction, an oil film is formed between the first axial support portion 18 and the first thrust plate 22, thereby The rotating shaft 12 is supported in the axial direction.
  • the second axial bearing portion 20 is configured to cooperate with the second thrust plate 24 such that when the rotating shaft 12 is rotated in the rotating direction, an oil film is formed between the second axial bearing portion 20 and the second thrust plate 24 to The shaft 12 is axially supported.
  • the first axial bearing portion 18 and the second axial bearing portion 20 each have a circular bearing surface projecting from the axial end face, the two bearing surfaces having different diameters, such that the first axis
  • the support portion 18 and the second axial support portion 20 have different supporting forces in two directions in the axial direction.
  • the diameter of the bearing surface of the first axial bearing portion 18 is greater than the diameter of the bearing surface of the second axial bearing portion 20, and thus has a greater supporting force.
  • the diameter of the bearing surface of the first axial bearing portion 18 may be smaller than the diameter of the bearing surface of the second axial bearing portion 20, and thus has a small supporting force.
  • the first axial bearing portion 18 is provided with a plurality of first oil drain grooves 26.
  • Each of the first oil drain grooves 26 extends from the inner edge of the first axial bearing portion 18 toward the outer edge of the first axial bearing portion 18 such that the first oil drain grooves 26 are radially radiated on the first axial bearing portion 18. And evenly spaced in the circumferential direction of the first axial support portion 18.
  • each of the first drain grooves 26 extends in a straight line, i.e., along a radius of the first axial support portion 18.
  • the first drain grooves may also be arranged in other shapes, such as each first drain groove extending along a curve.
  • Each of the first oil drain grooves 26 includes a groove bottom surface 28, a first side wall surface 30 and a second side wall surface 32, or is formed by a groove bottom surface 28, a first side wall surface 30, and a second side wall surface 32.
  • each of the first oil drain grooves 26 extends from the inner edge of the first axial bearing portion 18 toward the outer edge of the first axial bearing portion 18, and each of the first oil drain grooves 26 A first section draining groove 26A adjacent the inner edge and a second section draining groove 26B adjacent the outer edge are included.
  • the groove bottom surface of the second section drain groove 26B is gradually raised in the direction toward the outer edge, and the first section drain groove 26A may be of equal height.
  • the bottom surface of the first section of the drain groove 26A is also raised in a radially outward direction, but is relatively flat with respect to the rise of the bottom surface of the second drain groove 26B.
  • the first side wall surface 30 is located on one side of the groove bottom surface 28 in the direction of rotation, and the second side wall surface 32 is located on the side of the groove bottom surface 28 opposite to the direction of rotation.
  • the first side wall surface 30 and the second side wall surface 32 each have a bottom edge 34 that abuts the groove bottom surface 28 and a top edge 36 that interfaces with the first axial support portion 18.
  • the first side wall surface 30 extends obliquely along a curved surface in a direction from its bottom edge 34 toward its top edge 36 along the direction of rotation.
  • the sliding bearing optimized by the arc of the drain groove has less loss, lower oil temperature and less resistance, and is particularly suitable for use in demanding bearings or ultra-high speed conditions.
  • the second axial bearing portion 20 also has a similar oil drain groove.
  • the second axial bearing portion 20 is provided with a plurality of second oil drain grooves 38.
  • These second oil drain grooves 38 extend radially on the second axial support portion 20 and are evenly spaced in the circumferential direction of the second axial support portion 20.
  • each of the oil drain grooves 38 extends in a straight line, i.e., along a radius of the second axial support portion 20.
  • the drains may also be arranged in other shapes, such as each drain extending along a curve.
  • Each of the second drain grooves 38 also includes a groove bottom surface, a first side wall surface, and a second side wall surface.
  • the first side wall surface of the second drain groove is located on one side of the bottom surface of the groove in the direction of rotation, and the second side wall surface is located on a side of the bottom surface of the groove opposite to the direction of rotation.
  • the first side wall surface and the second side wall surface of the second oil drain groove 38 each have a bottom edge that is in contact with the bottom surface of the groove and a top edge that is in contact with the second axial support portion.
  • the first side wall surface extends obliquely along a curved surface in a direction from the bottom edge toward the top side thereof along the rotational direction.
  • the sliding bearing 10 is provided with a radial oil inlet hole 40.
  • the radial oil inlet bore 40 is disposed between the two axial bearing portions.
  • the radial oil inlet hole 40 communicates with the outer peripheral surface of the sliding bearing 10 and the shaft hole 16 so that the lubricating oil can enter the shaft hole 16 through the radial oil inlet hole 40 to lubricate the radial bearing portion.
  • the inner wall surface of the shaft hole 16 is provided with at least one oil guiding groove 44, and the oil guiding groove 44 communicates with the first oil drain groove 26 on the first axial bearing portion 18, so that the lubricating oil can flow to the first oil drain groove 26 via the oil guiding groove 44.
  • the first axial bearing portion 18 is provided with an annular groove 46 at the edge of the shaft hole 16, and the oil guiding groove 44 communicates with the annular groove 46, and the first oil drain groove 26 is also connected to the annular groove. 46 is connected, so that lubricating oil can flow from the shaft hole 16 to the first axial support portion 18.
  • the sliding bearing 10 is also provided with a second radial oil inlet for transferring the lubricating oil to the second oil drain groove 38 of the second axial support portion 20, a second oil guiding groove for the inner wall surface of the shaft hole 16, and a corresponding first portion.
  • the second annular oil inlet, the second oil guiding groove and the second annular groove have the same structure and function as the radial oil inlet 40, the oil guiding groove 44 and the annular groove 46, and therefore will not be described herein. .
  • the sliding bearing 10 is further provided with a drain hole for returning the lubricating oil on the axial bearing portion to a return oil groove.
  • the outer peripheral surface of the axial support portion forms a flat surface 50.
  • the plane 50 is formed, for example, by removing a portion of a complete circle.
  • the plane 50 is configured to form a drain hole with a fixing member (not shown) of the fixed sliding bearing 10, and the drain hole is in fluid communication with the oil film on the axial support portion, so that the lubricating oil on the axial support portion can Flow back through the drain hole to the oil return tank.
  • first axial support portion 18 There may be a slope between adjacent drains.
  • first axial support portion 18 will be described as an example. It should be understood that a similar bevel may also be provided on the second axial support portion 20.
  • the first axial support portion 18 forms a slope portion 54 and a flat surface portion 56 between the adjacent two first oil drain grooves 26.
  • the inclined surface portion 54 and the flat surface portion 56 have two sides in the circumferential direction.
  • the circumferential side of the inclined surface portion 54 is in contact with the first side wall surface 30 of one of the adjacent first oil drain grooves 26, and the other circumferential side of the inclined surface portion 54 is in contact with the circumferential side of the flat surface portion 56, and the flat portion 56 The other circumferential side is in contact with the second side wall surface 32 of another adjacent first drain groove 26.
  • the height of the inclined surface portion 54 on the axial end surface increases in the circumferential direction toward the flat portion, and the height of the inclined surface portion 54 also increases in the radially outward direction.
  • An outer edge portion 55 is provided on the radially outer side of the inclined surface portion 54, and the outer edge portion 55 is connected to the flat portion 56 and is equal in height, that is, both are coplanar.
  • the inclined surface portion 54 is generally lower than the outer edge portion 55 and the flat surface portion 56, and is flush only at a position in contact with the outer edge portion 55 and the flat surface portion 56.
  • the above-mentioned inclined surface portion can better guide the lubricating oil of the oil guiding groove to the end surface, and is more favorable for covering the entire end surface to form an oil film.
  • the oil film is continuously compressed, and the oil is continuously replenished at a high speed to form a high speed condition.
  • Dynamic balance which is more conducive to lubrication and reduce losses.
  • the difference in height between the circumferential sides of the inclined surface portion with respect to the bottom surface of the groove is greater than or equal to 0.04 mm, but less than or equal to 0.1 mm.
  • the height difference is greater than or equal to 0.05 mm, but less than or equal to 0.06 mm. More preferably, the height difference is 0.06 mm.
  • a similar inclined surface portion may also be disposed on the second axial support portion 20, and details are not described herein.
  • embodiments of the present invention provide a sliding bearing that can withstand axial and radial forces of rotation of a rotating shaft.
  • the wall surface of the oil drain groove on the axial bearing portion of the sliding bearing is optimized by the curvature, so that the sliding bearing has less loss, lower oil temperature and less resistance, and is particularly suitable for use in demanding bearings or ultra-high speed conditions.

Landscapes

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

Abstract

L'invention concerne un palier lisse (10). Le palier lisse (10) est pourvu d'un trou d'arbre (16) à travers lequel passe un arbre rotatif. Le palier lisse (10) est pourvu d'une partie de support axial (18, 20). La partie de support axial (18, 20) correspond à une bague de butée (22, 24) fixée sur l'arbre rotatif (12). Lorsque l'arbre rotatif (12) tourne le long d'une direction de rotation, un film d'huile est formé entre la partie de support axial (18, 20) et la bague de butée (22, 24), de telle sorte que l'arbre rotatif (12) est supporté axialement. La partie de support axial (18, 20) est pourvue de multiples rainures d'évacuation d'huile (26, 38). Chacune des rainures d'évacuation d'huile (26, 38) comprend une surface inférieure de rainure (28), une première surface de paroi latérale (30) et une seconde surface de paroi latérale (32). La première surface de paroi latérale (30) est située sur un côté de la surface inférieure de rainure (28) le long de la direction de rotation. La seconde surface de paroi latérale (32) est située sur un côté de la surface inférieure de rainure (28) opposé à la direction de rotation. La première surface de paroi latérale (30) est pourvue d'un bord inférieur (34) accolé à la surface inférieure de rainure (28) et d'un bord supérieur (36) accolé à la partie de support axial (18, 20). La première surface de paroi latérale (30) s'étend de manière inclinée le long d'une surface incurvée dans la direction de rotation et dans une direction allant du bord inférieur (34) au bord supérieur (36). Le palier lisse de l'invention provoque moins d'usure, génère une température inférieure, a une force de résistance moindre, et est donc particulièrement applicable à des scénarios imposant des exigences rigoureuses pour les paliers ou des scénarios à très haute vitesse.
PCT/CN2016/113759 2016-12-30 2016-12-30 Palier lisse WO2018120130A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/113759 WO2018120130A1 (fr) 2016-12-30 2016-12-30 Palier lisse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/113759 WO2018120130A1 (fr) 2016-12-30 2016-12-30 Palier lisse

Publications (1)

Publication Number Publication Date
WO2018120130A1 true WO2018120130A1 (fr) 2018-07-05

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ID=62706741

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/113759 WO2018120130A1 (fr) 2016-12-30 2016-12-30 Palier lisse

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WO (1) WO2018120130A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020038655A1 (fr) * 2018-08-21 2020-02-27 Zf Friedrichshafen Ag Élément d'appui pour un palier axial hydrodynamique et palier axial hydrodynamique

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1188192A (zh) * 1996-10-11 1998-07-22 亚瑞亚·勃朗勃威力有限公司 轴向滑动轴承
JP2002106551A (ja) * 2001-08-29 2002-04-10 Daido Metal Co Ltd 半割スラスト軸受
CN1802515A (zh) * 2003-07-05 2006-07-12 曼·B及W柴油机公开股份有限公司 推力滑动轴承
CN200982309Y (zh) * 2006-09-15 2007-11-28 华东理工大学 新型磁力泵推力滑动轴承
CN101603566A (zh) * 2008-06-10 2009-12-16 株式会社日立制作所 横轴式旋转机
CN101705963A (zh) * 2009-11-27 2010-05-12 中国北车集团大连机车研究所有限公司 东风系列内燃机车增压器推力轴承
DE102010023475A1 (de) * 2010-06-11 2011-12-15 Daimler Ag Axiallager, Abgasturbolader mit einem Axiallager und Verfahren zur Herstellung eines Axiallagers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1188192A (zh) * 1996-10-11 1998-07-22 亚瑞亚·勃朗勃威力有限公司 轴向滑动轴承
JP2002106551A (ja) * 2001-08-29 2002-04-10 Daido Metal Co Ltd 半割スラスト軸受
CN1802515A (zh) * 2003-07-05 2006-07-12 曼·B及W柴油机公开股份有限公司 推力滑动轴承
CN200982309Y (zh) * 2006-09-15 2007-11-28 华东理工大学 新型磁力泵推力滑动轴承
CN101603566A (zh) * 2008-06-10 2009-12-16 株式会社日立制作所 横轴式旋转机
CN101705963A (zh) * 2009-11-27 2010-05-12 中国北车集团大连机车研究所有限公司 东风系列内燃机车增压器推力轴承
DE102010023475A1 (de) * 2010-06-11 2011-12-15 Daimler Ag Axiallager, Abgasturbolader mit einem Axiallager und Verfahren zur Herstellung eines Axiallagers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020038655A1 (fr) * 2018-08-21 2020-02-27 Zf Friedrichshafen Ag Élément d'appui pour un palier axial hydrodynamique et palier axial hydrodynamique

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