WO2016143741A1 - Élément coulissant, mécanisme coulissant et procédé de fabrication d'un élément coulissant - Google Patents

Élément coulissant, mécanisme coulissant et procédé de fabrication d'un élément coulissant Download PDF

Info

Publication number
WO2016143741A1
WO2016143741A1 PCT/JP2016/056996 JP2016056996W WO2016143741A1 WO 2016143741 A1 WO2016143741 A1 WO 2016143741A1 JP 2016056996 W JP2016056996 W JP 2016056996W WO 2016143741 A1 WO2016143741 A1 WO 2016143741A1
Authority
WO
WIPO (PCT)
Prior art keywords
sliding
sliding surface
roughness curve
slide
rotary table
Prior art date
Application number
PCT/JP2016/056996
Other languages
English (en)
Japanese (ja)
Inventor
高橋　寛明
Original Assignee
住友重機械工業株式会社
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 住友重機械工業株式会社 filed Critical 住友重機械工業株式会社
Priority to JP2017505327A priority Critical patent/JPWO2016143741A1/ja
Priority to DE112016001146.6T priority patent/DE112016001146T5/de
Priority to CN201680006951.7A priority patent/CN107208697A/zh
Publication of WO2016143741A1 publication Critical patent/WO2016143741A1/fr

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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • 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
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • 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
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/14—Special methods of manufacture; Running-in
    • 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • 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
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/54—Surface roughness
    • 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators
    • 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
    • F16C2350/00—Machines or articles related to building
    • F16C2350/26—Excavators
    • 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings

Definitions

  • the present invention relates to a sliding member, a sliding mechanism, and a manufacturing method of the sliding member.
  • Patent Document 1 discloses a sliding bearing applied to joint parts such as an excavator boom, an arm, and a bucket.
  • a pivot pin is rotatably supported by the slide bearing.
  • the plain bearing is formed of a porous sintered metal. This sintered metal is impregnated with a lubricant.
  • Patent Document 2 discloses a sliding pin in which an annular groove is provided on a side surface and a resin lubricant is embedded in the groove. By embedding a resin lubricant in the groove, seizure of the sliding surface can be prevented.
  • Patent Document 1 does not give a detailed description of the structure of the pivot pin. Since the sliding pin described in Patent Document 2 needs to form an annular groove on the side surface, the processing time of the sliding pin becomes long.
  • An object of the present invention is to provide a sliding member capable of suppressing seizure of the sliding surface and suppressing an increase in processing time.
  • Another object of the present invention is to provide a sliding mechanism having this sliding member.
  • Still another object of the present invention is to provide a method for manufacturing the sliding member.
  • a sliding member including a sliding surface that slides with respect to an opposing surface, the sliding surface having recesses that are irregularly distributed two-dimensionally.
  • a sliding member having a negative skewness obtained from the roughness curve of the sliding surface is provided.
  • a first member having a first sliding surface;
  • a second member that includes a second sliding surface facing the first sliding surface, the first sliding surface and the second sliding surface sliding;
  • the second sliding surface has concave portions that are irregularly distributed two-dimensionally, and a sliding mechanism is provided in which the skewness obtained from the roughness curve of the second sliding surface is negative.
  • a method for manufacturing a sliding member which includes a step of making the skewness obtained from the roughness curve of the sliding surface negative by leveling the convex portion of the sliding surface on which the unevenness is formed.
  • the processing time to scrape the convex part of irregularities distributed irregularly two-dimensionally by the first blast treatment Is short. Since the concave portion remains on the side surface after leveling the convex portion formed by the first blast treatment, it is not necessary to newly form a concave portion for oil sump. For this reason, processing time can be shortened compared with the method of forming the recessed part for oil sump after mirror finishing.
  • FIG. 1A is a cross-sectional view of a rotation mechanism including a slide bearing pin and a bush according to an embodiment
  • FIG. 1B is a cross-sectional view taken along one-dot chain line 1B-1B in FIG. 1A
  • FIG. 2 is a flowchart of a method for manufacturing a slide bearing pin for a slide bearing according to an embodiment
  • FIG. 3 is a cross-sectional view of the sliding bearing pin during polishing.
  • FIG. 4A is a graph showing an example of the roughness curve of the sliding surface after the first blasting process (step S2)
  • FIG. 4B shows the sliding surface after the leveling process of the convex part (step S3). It is a graph which shows an example of a roughness curve.
  • FIG. 1A is a cross-sectional view of a rotation mechanism including a slide bearing pin and a bush according to an embodiment
  • FIG. 1B is a cross-sectional view taken along one-dot chain line 1B-1B in FIG. 1
  • FIG. 5A is a graph showing the results of evaluating the relationship between the sliding speed and the coefficient of friction using a journal bearing type sliding test device
  • FIGS. 5B and 5C show the sliding after step S1 (FIG. 2), respectively. It is the figure which sketched the shading pattern obtained by measuring the surface and the sliding surface after step S3 (FIG. 2) with a surface roughness measuring instrument.
  • FIG. 6 is a flowchart of a method for manufacturing a slide bearing pin for a slide bearing according to another embodiment.
  • FIG. 7 is a graph showing the results of evaluating the relationship between the sliding speed and the coefficient of friction using a journal bearing type sliding test apparatus.
  • FIG. 8 is a schematic side view of an excavator to which the slide bearing pin according to the embodiment is applied.
  • FIG. 9 is a schematic view of a mold clamping device of a molding machine according to another embodiment.
  • FIG. 10 is a schematic sectional view of an injection molding machine according to still another embodiment.
  • FIG. 11 is a schematic view of a forging press according to still another embodiment.
  • FIG. 1A shows a sectional view of a rotating mechanism including a sliding bearing pin (sliding member) and a bush according to the embodiment.
  • FIG. 1B is a cross-sectional view taken along one-dot chain line 1B-1B in FIG. 1A.
  • a cross-sectional view taken along one-dot chain line 1A-1A in FIG. 1B corresponds to FIG. 1A.
  • the cross-sectional view shown in FIG. 1A includes the center of rotation, and the cross-sectional view shown in FIG. 1B is perpendicular to the center of rotation.
  • a sliding bearing pin 12 is inserted into the bush 11 and is supported rotatably with respect to the bush 11.
  • the sliding bearing pin 12 includes a sliding surface (side surface) that slides with respect to the inner surface of the bush 11.
  • the bush 11 is fixed to the first member 10.
  • FIG. 1A shows an example in which two bushes 11 having the same shape are attached to the first member 10, the number of the bushes 11 may be one or three or more.
  • the slide bearing pin 12 is supported by the second member 13 at both ends thereof. Further, the sliding bearing pin 12 is fixed to the second member 13 so as not to rotate at one end portion 14 thereof.
  • the first member 10 rotates with respect to the second member 13 with the central axis of the sliding bearing pin 12 as the rotation axis.
  • the first member 10, the second member 13, the bush 11, and the slide bearing pin 12 constitute a rotation mechanism.
  • FIG. 2 shows a flowchart of a processing method of the sliding surface of the slide bearing pin 12 according to the embodiment.
  • step S1 a cylindrical slide bearing pin 12 having a linear grinding mark remaining on the sliding surface is prepared.
  • step S2 the sliding surface of the sliding bearing pin 12 is subjected to a first blasting process to form irregularities that are two-dimensionally irregularly distributed on the sliding surface.
  • the particles used in the first blast treatment are polygonal or spherical hard particles having a particle size of 0.1 mm or more and 1 mm or less.
  • the first blasting process is performed under a condition where the coverage is 100% or more.
  • step S3 the convex portions formed in step S2 are leveled.
  • a method for leveling the convex portions there are polishing, burnishing and the like.
  • FIG. 3 shows a cross-sectional view of the slide bearing pin 12 during polishing.
  • the abrasive cloth 17 contains abrasive particles.
  • a polishing cloth 17 is wound around and contacted with an area of 50% or more of the side surface of the sliding bearing pin 12 in the circumferential direction, and the polishing cloth 17 is applied to the polishing cloth 17 by applying tension in the direction of the arrow. Press against pin 12. In this state, the sliding surface is polished by rotating the sliding bearing pin 12.
  • the contact area between the sliding surface of the sliding bearing pin 12 and the polishing pad 17 is larger than buffing, polishing can be performed efficiently and uniformly.
  • the sliding surface of the sliding bearing pin 12 may be polished using general buffing, or the sliding surface may be polished using other polishing methods.
  • FIG. 4A shows an example of the roughness curve of the sliding surface after the first blasting process (step S2).
  • the probability density of height when centered on the average line of height is almost symmetrical. In other words, the skewness Rsk obtained from the roughness curve is almost zero.
  • FIG. 4B shows an example of the roughness curve of the sliding surface after the convexity leveling process (step S3).
  • the convex portion is leveled and flattened, the concave portion substantially retains the shape after the first blast treatment.
  • the skewness Rsk obtained from the roughness curve is negative.
  • the skewness Rsk is preferably set to ⁇ 1 or less.
  • FIG. 5A shows the result of evaluating the relationship between the sliding speed and the coefficient of friction using a journal bearing type sliding test device.
  • the horizontal axis represents the sliding speed in the unit “cm / s”, and the vertical axis represents the friction coefficient.
  • the surface pressure was about 100 MPa.
  • the square symbol in FIG. 5A indicates the friction coefficient of the sliding surface where the linear grinding marks remain, and the circle symbol indicates the first blasting process (step S2) and the convexity leveling process (step S3). The friction coefficient of the sliding surface performed is shown.
  • FIG. 5B and FIG. 5C show sketches of shading patterns obtained by measuring the sliding surface after step S1 and the sliding surface after step S3 with a surface roughness measuring instrument, respectively.
  • FIG. 5B it can be seen that linear grinding marks remain before the first blasting process (step S2).
  • the recesses are irregularly distributed two-dimensionally.
  • the friction coefficient is relatively small in the high speed region with the sliding speed of about 0.7 cm / s as a boundary, and the friction surface in the low speed region.
  • the coefficient is relatively large. That is, a mixed lubrication region between the fluid lubrication region and the boundary lubrication region exists in the vicinity of the sliding speed of 0.7 cm / s.
  • the friction coefficient is significantly reduced, particularly in the range where the sliding speed is 0.7 cm / s or less.
  • the decrease in the coefficient of friction is due to the fact that the convex portions are leveled, so that an oil film interposed between the sliding surfaces makes it difficult for the sliding surfaces to directly contact each other.
  • the mixed lubrication region between the fluid lubrication region and the boundary lubrication region has shifted to the low speed side (left side of the graph). Since the fluid lubrication region is expanded, not only the friction characteristics but also the wear characteristics are improved.
  • the recesses that are irregularly distributed two-dimensionally on the sliding surface form an oil reservoir. Thereby, the image sticking by oil shortage can be suppressed.
  • the convex portion height Rpk obtained from the roughness curve of the sliding surface after step S3 is set to 0.03 ⁇ m or less, and the concave portion
  • the depth Rvk is preferably 0.1 ⁇ m or more.
  • step S3 convex portions that are two-dimensionally irregularly distributed may be removed. For this reason, polishing time can be shortened compared with the method of mirror-finishing the sliding surface where the linear grinding trace remained. Furthermore, since the recesses that are irregularly distributed two-dimensionally are formed in the first blasting process (step S2), it is not necessary to newly form a recess that becomes an oil reservoir after step S3.
  • step S2 compressive residual stress can be applied to the sliding bearing pin 12 in the first blasting process. For this reason, the fatigue strength of the slide bearing pin 12 can be increased.
  • the particle size of the particles used in the first blast treatment (step S2) is 0.2 mm or more.
  • FIG. 6 shows a flowchart of a method for processing a sliding surface of a sliding bearing pin according to another embodiment.
  • the processing from step S1 to step S3 is the same as the processing from step S1 to step S3 in the flowchart shown in FIG.
  • step S4 the second blast process is performed using particles smaller than the particles used in the first blast process (step S2).
  • step S2 finer irregularities are formed on the upper surface of the convex part leveled in step S3.
  • the convex portion height Rpk obtained from the roughness curve of the sliding surface after step S3 is preferably 0.03 ⁇ m or less.
  • step S4 the convex part height Rpk obtained from the roughness curve of the sliding surface is made larger than the convex part height Rpk before the second blasting process, and It is preferable to make it 0.08 ⁇ m or less.
  • FIG. 7 shows the results of evaluating the relationship between the sliding speed and the coefficient of friction using a journal bearing type sliding test apparatus.
  • the horizontal axis represents the sliding speed in the unit “cm / s”, and the vertical axis represents the friction coefficient.
  • the surface pressure was about 100 MPa.
  • the square symbol indicates the friction coefficient of the sliding surface on which linear grinding marks remain, and the circle symbol indicates the sliding surface that has undergone the first blasting process and the convexity leveling process. Indicates the friction coefficient of the moving surface.
  • the triangle symbol indicates the friction coefficient of the sliding surface that has been subjected to the second blasting process under the condition that the coverage is 100% or more with respect to a mirror surface having an arithmetic average roughness Ra of 0.01 ⁇ m.
  • FIG. 8 shows a schematic side view of an excavator to which the slide bearing pin according to the above embodiment is applied.
  • An upper turning body 21 is mounted on the lower traveling body 20 so as to be turnable.
  • a boom 22, an arm 23, and a bucket 24 are connected to the upper swing body 21.
  • Hydraulic cylinders 25, 26, and 27 drive the boom 22, the arm 23, and the bucket 24, respectively.
  • the hydraulic cylinder 27 and the bucket 24 are connected via a link mechanism 28.
  • the sliding bearing pin 12 according to the above embodiment is used for the joint portion 34 and the joint portion of the link mechanism 28.
  • a plain bearing used for a joint portion of a shovel has a feature that a surface pressure is as high as about 70 MPa and a sliding speed is low.
  • the sliding bearing pin 12 according to the above-described embodiment the Stribeck showing the lubrication state between the inner surface of the bush 11 (FIG. 1A) and the sliding surface (side surface) of the sliding bearing pin 12 (FIG. 1A). The curve shifts to the low speed side.
  • FIG. 9 shows a schematic view of a mold clamping device of a molding machine according to another embodiment.
  • the stationary platen 40 and the toggle support 41 are fixed to the frame at a distance from each other.
  • a plurality of tie bars 42 are installed between the fixed platen 40 and the toggle support 41.
  • the movable platen 43 is guided by the tie bar 42 and supported so as to be able to advance and retreat with respect to the fixed platen 40.
  • the mold mounting surface of the fixed platen 40 and the mold mounting surface of the movable platen 43 are opposed to each other.
  • a fixed mold 45 is mounted on the mold mounting surface of the fixed platen 40, and a movable mold 46 is mounted on the mold mounting surface of the movable platen 43.
  • a toggle mechanism 50 is disposed between the movable platen 43 and the toggle support 41.
  • a driving device 47 is attached to the back surface of the toggle support 41 (the surface facing the side opposite to the movable platen 43).
  • a connecting rod 51 extends from the driving device 47 through the toggle support 41 toward the movable platen 43. The drive device 47 moves the connecting rod 51 in the axial direction.
  • a crosshead 52 is attached to the tip of the connecting rod 51.
  • One end of each of the pair of small toggle levers 53 is attached to the cross head 52 via a slide bearing pin 61.
  • One end of the pair of large toggle levers 54 is attached to the toggle support 41 via a slide bearing pin 62.
  • the other end of the small toggle lever 53 is attached to an intermediate position of the large toggle lever 54 via a slide bearing pin 63.
  • the other end of the large toggle lever 54 is attached to one end of the toggle arm 55 via a slide bearing pin 64.
  • the other end of the toggle arm 55 is attached to the movable platen 43 via a sliding bearing pin 65.
  • the toggle mechanism 50 can be operated by the driving device 47 moving the connecting rod 51 in the axial direction.
  • the processing method of the sliding surface shown in FIG. 2 or 6 can be applied to the processing of the sliding surface (side surface) of the slide bearing pins 61, 62, 63, 64, 65.
  • the sliding surface was cylindrical.
  • the sliding surface processing method shown in FIGS. 2 and 6 can also be applied to a planar sliding surface.
  • the sliding mechanism of the embodiment described below has a flat sliding surface.
  • FIG. 10 shows a schematic diagram of an injection molding machine according to another embodiment.
  • a toggle mechanism 72 is disposed between the fixed platen 70 and the toggle support 71.
  • the toggle support 71 moves up and down with respect to the fixed platen 70 by the toggle mechanism 72.
  • Three tie bars 73 extending upward from the toggle support 71 extend through the fixed platen 70 and further upward.
  • FIG. 10 shows two tie bars 73.
  • a movable platen 75 is fixed to the upper end of the tie bar 73 using a fixing nut 76. When the toggle mechanism 72 is operated to move the toggle support 71 downward, the movable platen 75 approaches the fixed platen 70.
  • the two sliding plates 80a and 80b are fixed on the fixed platen 70.
  • a rotary table 77 is rotatably supported with respect to one tie bar 73 via a rotary bearing 78, and is supported from below by sliding plates 80a and 80b.
  • the two sliding plates 80 a and 80 b are arranged at point-symmetrical positions with respect to the rotation center of the rotary table 77.
  • a rotation drive mechanism 79 rotates the rotary table 77.
  • FIG. 10 shows a state in which the lower mold 82a is positioned directly above the sliding plate 80a.
  • the upper mold 83 is attached to the surface facing the lower side of the movable platen 75.
  • the upper mold 83 is disposed immediately above one sliding plate 80a.
  • one of the lower molds 82a and 82b can be arranged under the upper mold 83 to produce a molded product, and the produced molded product can be taken out from the other.
  • the interval between the fixed platen 70 and the movable platen 75 is narrowed, and a downward load is applied to a part of the rotary table 77, specifically, a position directly above the sliding plate 80a.
  • the sliding plate 80 a supports a load applied to the rotary table 77.
  • the upper surfaces of the sliding plates 80a and 80b and the lower surface of the rotary table 77 constitute a pair of sliding surfaces.
  • the lower surface (sliding surface) of the rotary table 77 and the upper surfaces (sliding surfaces) of the sliding plates 80a and 80b slide.
  • the processing method of the sliding surface shown in FIG. 2 or 6 can be applied to the processing of the upper surfaces of the sliding plates 80a and 80b.
  • FIG. 11 shows a schematic view of a forging press according to still another embodiment.
  • a column 92 extends upward from the four corners of the bed 90, and a crown 91 is fixed to the upper end of the column 92.
  • An eccentric shaft 95 spanned in the horizontal direction is rotatably supported on the crown 91.
  • a drive source 96 rotates the eccentric shaft 95.
  • a slide 98 is connected below the eccentric shaft 95 via a connecting rod 97.
  • the slide gibs 100 are attached to the columns 92, respectively.
  • the slide give 100 includes a guide surface extending in the vertical direction.
  • the slide 98 is guided in the vertical direction with the guided surface facing the guide surface of the slide give 100. By rotating the eccentric shaft 95, the slide 98 can be reciprocated in the vertical direction.
  • the lower die holder 105 is attached on the bed 90.
  • the lower die 106 is held by the lower die holder 105.
  • An upper die holder 107 is attached to the lower surface of the slide 98.
  • the upper die 108 is held by the upper die holder 107.
  • a copper alloy liner material can be used for the guide surface of the slide give 100.
  • the processing method of the sliding surface shown in FIG. 2 or 6 can be applied to processing of the guided surface of the slide 98.
  • a liner material made of, for example, copper alloy is used for the guided surface of the slide 98, and the sliding surface processing method shown in FIG. 2 or 6 is applied to the processing of the guiding surface of the slide give 100. Also good.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

Le problème à résoudre dans le cadre de la présente invention consiste à fournir un élément coulissant susceptible d'empêcher la brûlure d'une face coulissante et l'allongement du temps d'usinage. C'est pourquoi, l'élément coulissant d'après la présente invention comprend une face coulissante qui coulisse sur une face opposée. Cette face coulissante présente des cavités réparties irrégulièrement sur deux dimensions. De plus, une asymétrie obtenue à partir d'une courbe de rugosité de la face coulissante est négative.
PCT/JP2016/056996 2015-03-10 2016-03-07 Élément coulissant, mécanisme coulissant et procédé de fabrication d'un élément coulissant WO2016143741A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2017505327A JPWO2016143741A1 (ja) 2015-03-10 2016-03-07 摺動部材、摺動機構、及び摺動部材の製造方法
DE112016001146.6T DE112016001146T5 (de) 2015-03-10 2016-03-07 Gleitelement, Gleitmechanismus und Verfahren zum Herstellen eines Gleitelements
CN201680006951.7A CN107208697A (zh) 2015-03-10 2016-03-07 滑动部件、滑动机构及滑动部件的制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-046587 2015-03-10
JP2015046587 2015-03-10

Publications (1)

Publication Number Publication Date
WO2016143741A1 true WO2016143741A1 (fr) 2016-09-15

Family

ID=56880144

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/056996 WO2016143741A1 (fr) 2015-03-10 2016-03-07 Élément coulissant, mécanisme coulissant et procédé de fabrication d'un élément coulissant

Country Status (4)

Country Link
JP (1) JPWO2016143741A1 (fr)
CN (1) CN107208697A (fr)
DE (1) DE112016001146T5 (fr)
WO (1) WO2016143741A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2724219B2 (ja) * 1989-09-28 1998-03-09 エヌティエヌ株式会社 転がり軸受
JP2007271013A (ja) * 2006-03-31 2007-10-18 Nidec Sankyo Corp 動圧溝、および動圧溝の形成方法
JP2007284706A (ja) * 2006-04-12 2007-11-01 Toyota Industries Corp 摺動材料
JP2012189223A (ja) * 2012-06-18 2012-10-04 Nissan Motor Co Ltd 低摩擦摺動部材
JP2013096429A (ja) * 2011-10-28 2013-05-20 Taiho Kogyo Co Ltd すべり軸受およびその製造方法
JP2014152373A (ja) * 2013-02-12 2014-08-25 Kayaba Ind Co Ltd 摺動部材
JP5765490B2 (ja) * 2012-10-25 2015-08-19 千住金属工業株式会社 摺動部材及び摺動部材の製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219359B (en) * 1988-05-30 1992-11-04 Ntn Toyo Bearing Co Ltd Roller elements for machine parts such as roller bearings.
JPH102335A (ja) * 1996-06-19 1998-01-06 Ntn Corp 軸受装置
JP4301623B2 (ja) * 1999-03-26 2009-07-22 株式会社東芝 耐摩耗部材
JP2004116707A (ja) * 2002-09-27 2004-04-15 Nippon Piston Ring Co Ltd 組合せ摺動部材
RU2540047C1 (ru) * 2013-07-19 2015-01-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Алтайский государственный технический университет им. И.И. Ползунова" (АлтГТУ) Сферический двухрядный подшипник качения

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2724219B2 (ja) * 1989-09-28 1998-03-09 エヌティエヌ株式会社 転がり軸受
JP2007271013A (ja) * 2006-03-31 2007-10-18 Nidec Sankyo Corp 動圧溝、および動圧溝の形成方法
JP2007284706A (ja) * 2006-04-12 2007-11-01 Toyota Industries Corp 摺動材料
JP2013096429A (ja) * 2011-10-28 2013-05-20 Taiho Kogyo Co Ltd すべり軸受およびその製造方法
JP2012189223A (ja) * 2012-06-18 2012-10-04 Nissan Motor Co Ltd 低摩擦摺動部材
JP5765490B2 (ja) * 2012-10-25 2015-08-19 千住金属工業株式会社 摺動部材及び摺動部材の製造方法
JP2014152373A (ja) * 2013-02-12 2014-08-25 Kayaba Ind Co Ltd 摺動部材

Also Published As

Publication number Publication date
CN107208697A (zh) 2017-09-26
JPWO2016143741A1 (ja) 2017-12-21
DE112016001146T5 (de) 2017-12-21

Similar Documents

Publication Publication Date Title
RU81915U1 (ru) Устройство для финишной обработки зеркала цилиндра двигателя внутреннего сгорания
US10107227B2 (en) Method of forming a cylinder liner
JP6824563B2 (ja) 摺動機構
CN107931605B (zh) 用于摩擦副表面微织构的3d打印制作方法
KR20100102617A (ko) 저 마찰 요소의 제조
CN101541478A (zh) 强化曲轴的方法和装置
KR20160046805A (ko) 슬라이딩 표면, 상기 슬라이딩 표면을 제조하기 위한 공구 및 방법
JP2006161801A (ja) 摺動装置
JP2007002989A (ja) 摺動部材、当該摺動部材を適用したシリンダ、および当該シリンダを適用した内燃機関
Sabri et al. A study on the influence of bond material on honing engine cylinder bores with coated diamond stones
JP4894753B2 (ja) 超仕上砥石及びそれを用いた超仕上加工方法
WO2016143741A1 (fr) Élément coulissant, mécanisme coulissant et procédé de fabrication d'un élément coulissant
RU2398668C2 (ru) Способ ремонта гидрораспределителей
CN106625205B (zh) 伺服机构滚轴传动活塞杆方孔的研磨工装和研磨方法
KR20140066235A (ko) 크랭크샤프트의 표면 품질을 향상시키는 방법
JPS59115157A (ja) 環状被加工物の内周面加工用超仕上加工装置
JP6549851B2 (ja) 摺動部材のテクスチャ加工方法
CN105538126A (zh) 一种超精机摆头机构
KR20140022689A (ko) 연주설비의 주형 보수 방법 및 주형 보수 장치
JP2006123068A (ja) シリンダブロックのホーニング加工装置
CN102548708B (zh) 具有磨石的磨具和使用所述磨具进行磨削的方法
JP3859068B2 (ja) ピストンピンの摺動面の耐焼付性向上方法
JP2011189455A (ja) 摺動部材の製造方法及び摺動部材
JP2005271037A (ja) 微細凹部加工方法及び微細凹部加工装置
JP5344299B2 (ja) 極低速回転用の軸受装置

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: 16761709

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017505327

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 112016001146

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16761709

Country of ref document: EP

Kind code of ref document: A1