US20020029600A1 - Roller cage for a deep rolling work roller - Google Patents

Roller cage for a deep rolling work roller Download PDF

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Publication number
US20020029600A1
US20020029600A1 US09/747,861 US74786100A US2002029600A1 US 20020029600 A1 US20020029600 A1 US 20020029600A1 US 74786100 A US74786100 A US 74786100A US 2002029600 A1 US2002029600 A1 US 2002029600A1
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US
United States
Prior art keywords
roller
cage
work
deep rolling
work roller
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Granted
Application number
US09/747,861
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US6439019B1 (en
Inventor
Alfred Heimann
Hans Zimmerman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hegenscheidt MFD GmbH and Co KG
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Hegenscheidt MFD GmbH and Co KG
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.)
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Assigned to HEGENSCHEIDT-MED GMBH & CO. KG reassignment HEGENSCHEIDT-MED GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZIMMERMAN, HANS, HEIMANN, ALFRED
Publication of US20020029600A1 publication Critical patent/US20020029600A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
    • B21H7/182—Rolling annular grooves
    • B21H7/185—Filet rolling, e.g. of crankshafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/04—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/04—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of solid grinding, polishing or lapping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0263—Lubricating devices using solid lubricants

Definitions

  • the invention concerns a roller cage for a minimum of one work roller of a tool for deep rolling of grooves or radii of crankshaft bearings, where the work roller is loosely guided at a section of its circumference, either by the roller cage or in a concave recess of the roller cage.
  • Deep rolling work rollers typically are loosely guided in roller cages identified by reference number 15 .
  • the roller cages are attached to the external end of the long leg of an L-shaped tool holder.
  • the deep rolling work rollers are described in U.S. Pat. No. 5,806,184.
  • the work rollers are guided in roller cages.
  • Work rollers for the deep rolling of grooves or radii of crankshaft bearings are highly stressed tools. Their wear and tear occurs, for example, by material chipping similar to that experienced in gears or in rolling elements of rolling bearings.
  • the work roller In a deep rolling tool known in the art, the work roller is vertically supported from above by one guide roller each. The total load applied to the work roller is generated by the contacts between the work roller, the guide roller, the crankshaft and the roller cage. Of the two roller cages, each located opposite one work roller, only the one located in the crankshaft drive direction is subject to wear. A generally known practice for reduction of this wear and tear is to offset the work roller by a small amount, relative to a line formed by the crankshaft axis and the guide roller.
  • the object of the invention calls for a reduction of wear for the roller cage.
  • the means used for this purpose should be easy to handle, reliable in operation, and also reasonably priced.
  • the object of the invention is attained in that at least those portions of the roller cage, or those sections of the concave recess at which, or in which, the work roller is guided in the roller cage, consist of a material that dispenses solid lubricant to the work roller.
  • a material that dispenses solid lubricant to the work roller is, for example, graphite.
  • a block of graphite is placed in a void of the roller cage and, during deep rolling, dispenses graphite particles to the work roller to provide lubrication.
  • Materials other than graphite may also be utilized as a solid lubricant, such as MOS 2 .
  • a sintered metal material for the roller cage may be considered.
  • the porosity of the sintered metal material supports the application of a lubricant under external pressure.
  • the lubricant passes through the sintered metal material and exits at places where the roller cage is in contact with the work roller.
  • FIG. 1 a side view of the engaged components of a deep rolling tool
  • FIG. 2 a roller cage containing a lubricant dispensing element.
  • Number 1 in FIG. 1 refers to a circle representing the circumference of a bearing of a crankshaft.
  • the crankshaft 1 rotates in the direction of the arrow 2 .
  • a deep rolling work roller 3 engages a groove (not shown) of the crankshaft 1 .
  • the work roller 3 is supported from above by a supporting roller 4 which, in turn, rotates in the direction of the arrow 5 .
  • the working roller 3 is loosely guided by a roller cage 6 which contacts the work roller 3 in the direction of the arrow 7 .
  • the area of contact between the work roller 3 and the roller cage 6 is shown enlarged in FIG. 2.
  • the roller cage 6 contains a void 11 .
  • a graphite block 8 is inserted in the void 11 , representing the direct contact between the roller cage 6 and the work roller 3 .
  • the relationship of the contact area 9 , between the face of the graphite block 8 and the work roller 3 and the surfaces 10 of the wall of the roller cage 6 laterally supporting the graphite block 8 is designed so that in the course of wear of the roller cage 6 a sufficient amount of graphite can be transferred to the work roller 3 from the graphite block 8 at all times.
  • the specific ratio of the surface areas under consideration is determined experimentally.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Rolling Contact Bearings (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

A roller cage (6) is provided for a minimum of one work roller (3) of a tool for deep rolling of grooves or radii of a crankshaft bearing (1) where the work roller (3) at a section of its circumference is loosely guided by the roller cage (6) or inside a concave void of the roller cage (6). Portions of the roller cage (6) by which the work roller (3) is guided, consist of a material that dispenses solid lubricant to the work roller (3).

Description

    RELATED APPLICATIONS
  • This application claims priority to German Patent Application No. 10045258.2, filed Sep. 12, 2000. [0001]
    • BACKGROUND OF THE INVENTION
  • The invention concerns a roller cage for a minimum of one work roller of a tool for deep rolling of grooves or radii of crankshaft bearings, where the work roller is loosely guided at a section of its circumference, either by the roller cage or in a concave recess of the roller cage. [0002]
  • A prior art deep rolling tool is described in European Patent Application EP 0 839 607 A1. Deep rolling work rollers typically are loosely guided in roller cages identified by reference number [0003] 15. The roller cages are attached to the external end of the long leg of an L-shaped tool holder.
  • The deep rolling work rollers are described in U.S. Pat. No. 5,806,184. The work rollers are guided in roller cages. Work rollers for the deep rolling of grooves or radii of crankshaft bearings are highly stressed tools. Their wear and tear occurs, for example, by material chipping similar to that experienced in gears or in rolling elements of rolling bearings. [0004]
  • In a deep rolling tool known in the art, the work roller is vertically supported from above by one guide roller each. The total load applied to the work roller is generated by the contacts between the work roller, the guide roller, the crankshaft and the roller cage. Of the two roller cages, each located opposite one work roller, only the one located in the crankshaft drive direction is subject to wear. A generally known practice for reduction of this wear and tear is to offset the work roller by a small amount, relative to a line formed by the crankshaft axis and the guide roller. [0005]
  • Work rollers are, however, not only stressed by pressure, but there is also slippage between the work roller, the crankshaft and the guide roller, since their effective radii roll off differently. The roller cage transfers the so generated rolling force directly to the work roller and is, for this reason, severely stressed by the slipping action, and wears fast accordingly. Previously this type of wear has been counteracted by applying oil lubrication or oil-air-lubrication using rolling oil, to the deep rolling tools. For oil lubrication a thin-bodied oil (5 CST) is used feeding very generous amounts. [0006]
    • SUMMARY OF THE INVENTION
  • The object of the invention calls for a reduction of wear for the roller cage. The means used for this purpose should be easy to handle, reliable in operation, and also reasonably priced. [0007]
  • The object of the invention is attained in that at least those portions of the roller cage, or those sections of the concave recess at which, or in which, the work roller is guided in the roller cage, consist of a material that dispenses solid lubricant to the work roller. One suitable material of this type is, for example, graphite. A block of graphite is placed in a void of the roller cage and, during deep rolling, dispenses graphite particles to the work roller to provide lubrication. [0008]
  • Wear and tear of the graphite-holding portion of the roller cage is controlled in a simple manner by dimensioning the remaining portions of the roller cage not containing graphite, small enough to allow at all times a sufficiently large graphite layer to be removed along with their wear. These relationships are determined from case to case experimentally. [0009]
  • Materials other than graphite may also be utilized as a solid lubricant, such as MOS[0010] 2. Also, the application of a sintered metal material for the roller cage may be considered. The porosity of the sintered metal material supports the application of a lubricant under external pressure. The lubricant passes through the sintered metal material and exits at places where the roller cage is in contact with the work roller.
    • BRIEF DESCRIPTION OF THE DRAWING
  • In the following the invention is described in more detail based on one embodiment. In a very simplified and schematic view the following is shown: [0011]
  • FIG. 1 a side view of the engaged components of a deep rolling tool, and [0012]
  • FIG. 2 a roller cage containing a lubricant dispensing element.[0013]
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • [0014] Number 1 in FIG. 1 refers to a circle representing the circumference of a bearing of a crankshaft. The crankshaft 1 rotates in the direction of the arrow 2. A deep rolling work roller 3 engages a groove (not shown) of the crankshaft 1. In the vertical direction the work roller 3 is supported from above by a supporting roller 4 which, in turn, rotates in the direction of the arrow 5. The working roller 3 is loosely guided by a roller cage 6 which contacts the work roller 3 in the direction of the arrow 7. The area of contact between the work roller 3 and the roller cage 6 is shown enlarged in FIG. 2. The roller cage 6 contains a void 11. A graphite block 8 is inserted in the void 11, representing the direct contact between the roller cage 6 and the work roller 3. The relationship of the contact area 9, between the face of the graphite block 8 and the work roller 3 and the surfaces 10 of the wall of the roller cage 6 laterally supporting the graphite block 8, is designed so that in the course of wear of the roller cage 6 a sufficient amount of graphite can be transferred to the work roller 3 from the graphite block 8 at all times. The specific ratio of the surface areas under consideration is determined experimentally.
  • The invention has been described in an illustrative manner, and it is to be understood that the terminology that has been used is intended to be in the nature of words of description rather than of limitation. Obviously, many modifications and variations of the present invention are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described. [0015]

Claims (8)

1. A deep rolling tool for rolling the grooves on crankshaft journals comprising:
a cage having a recess and a pocket proximate said recess;
a work roller received by said recess; and
a solid lubricant material insert disposed in said pocket and adjacent said work roller for lubricating said work roller.
2. The tool according to claim 1, wherein said cage is constructed from metal.
3. The tool according to claim 2, wherein said metal is bronze.
4. The tool according to claim 1, wherein said solid lubricant material insert is graphite.
5. The tool according to claim 1, wherein said cage is a sintered metal.
6. The tool according to claim 5, wherein pressurized lubricant is applied to said cage.
7. The tool according to claim 1, wherein said solid lubricant material insert is a sintered metal.
8. The tool according to claim 7, wherein pressurized lubricant is applied to said solid lubricant material insert.
US09/747,861 2000-09-12 2000-12-22 Roller cage for a deep rolling work roller Expired - Fee Related US6439019B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10045258.2 2000-09-12
DE10045258A DE10045258A1 (en) 2000-09-13 2000-09-13 Roller cage for a deep rolling roller
DE10045258 2000-09-13

Publications (2)

Publication Number Publication Date
US20020029600A1 true US20020029600A1 (en) 2002-03-14
US6439019B1 US6439019B1 (en) 2002-08-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
US09/747,861 Expired - Fee Related US6439019B1 (en) 2000-09-12 2000-12-22 Roller cage for a deep rolling work roller

Country Status (4)

Country Link
US (1) US6439019B1 (en)
AU (1) AU2001293805A1 (en)
DE (1) DE10045258A1 (en)
WO (1) WO2002022284A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014504960A (en) * 2011-02-11 2014-02-27 フェロール ゲーエムベーハー Hydrostatic rolling apparatus for surface treatment and method for treating skin layer
CN117001437A (en) * 2023-09-28 2023-11-07 江苏凯达重工股份有限公司 Machine tool for manufacturing roller

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008007563U1 (en) 2008-06-05 2008-10-02 Hegenscheidt-Mfd Gmbh & Co. Kg Rolling roller head
CN101745775B (en) * 2008-12-02 2012-12-12 俊儒企业有限公司 Method and device for increasing slickness of middle axis surface of ball valve assembly
GB201014390D0 (en) * 2010-08-27 2010-10-13 Accuride Int Ltd Improvements in sliding supports and bearing ball retainers
PL3378595T3 (en) 2017-03-24 2020-01-31 Hegenscheidt-Mfd Gmbh Cage assembly for fixed shaft roller

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE432470B (en) * 1981-06-10 1984-04-02 Skf Ab WINDOWS FOR ROLLING STORES
DE8809823U1 (en) * 1988-08-02 1988-10-06 Wilhelm Hegenscheidt Gmbh, 5140 Erkelenz Rolling tool
EP0353427B1 (en) * 1988-08-02 1992-11-11 Wilhelm Hegenscheidt Gesellschaft mbH Burnishing unit
DE4210060A1 (en) * 1991-04-05 1992-10-08 Klueber Lubrication Cage for ball bearing - has sheet metal housing with pockets fitted with blocks of low friction material
EP0613531A1 (en) * 1992-09-24 1994-09-07 The Torrington Company Cage for roller bearings
NL9401234A (en) * 1994-07-27 1996-03-01 Skf Ind Trading & Dev Roller bearing with a low friction lining.
DE19529379A1 (en) * 1994-11-10 1996-05-15 Schaeffler Waelzlager Kg Cage for roller bearing
US5806184A (en) * 1996-08-21 1998-09-15 Lonero Engineering Company, Inc. Process to manufacture upper work roll products
US5816713A (en) * 1996-09-03 1998-10-06 The Torrington Company Bearing cage with T-shaped pitoling pads
US5826453A (en) * 1996-12-05 1998-10-27 Lambda Research, Inc. Burnishing method and apparatus for providing a layer of compressive residual stress in the surface of a workpiece
JP3699803B2 (en) * 1997-05-09 2005-09-28 光洋精工株式会社 Manufacturing method of bearing and bearing
WO1998051432A1 (en) * 1997-05-16 1998-11-19 Hegenscheidt-Mfd Corporation Support tool for deep rolling crankshaft fillets
US6238744B1 (en) * 1998-02-17 2001-05-29 Ford Motor Company Method for eliminating bearing assembly hoot noise

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014504960A (en) * 2011-02-11 2014-02-27 フェロール ゲーエムベーハー Hydrostatic rolling apparatus for surface treatment and method for treating skin layer
US9321135B2 (en) 2011-02-11 2016-04-26 Ecoroll Ag Werkzeugtechnik Fluidostatic rolling device for surface processing and method for shaping the edge layer
CN117001437A (en) * 2023-09-28 2023-11-07 江苏凯达重工股份有限公司 Machine tool for manufacturing roller

Also Published As

Publication number Publication date
US6439019B1 (en) 2002-08-27
WO2002022284A1 (en) 2002-03-21
DE10045258A1 (en) 2002-04-04
AU2001293805A1 (en) 2002-03-26

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AS Assignment

Owner name: HEGENSCHEIDT-MED GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HEIMANN, ALFRED;ZIMMERMAN, HANS;REEL/FRAME:011395/0445;SIGNING DATES FROM 20001216 TO 20001219

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

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Effective date: 20060827