EP0370179A2 - Outil universel pour extraire les anneaux internes des roulements à billes - Google Patents

Outil universel pour extraire les anneaux internes des roulements à billes Download PDF

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Publication number
EP0370179A2
EP0370179A2 EP89115569A EP89115569A EP0370179A2 EP 0370179 A2 EP0370179 A2 EP 0370179A2 EP 89115569 A EP89115569 A EP 89115569A EP 89115569 A EP89115569 A EP 89115569A EP 0370179 A2 EP0370179 A2 EP 0370179A2
Authority
EP
European Patent Office
Prior art keywords
stripper
ring
screw
hub
universal
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP89115569A
Other languages
German (de)
English (en)
Other versions
EP0370179A3 (fr
Inventor
Pierino Zecchin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0370179A2 publication Critical patent/EP0370179A2/fr
Publication of EP0370179A3 publication Critical patent/EP0370179A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws

Definitions

  • the invention concerns a universal stripper for the inner ring of cylindrical ball bearings.
  • the main inconvenience is represented by the fact that, if the inner ring of the ball-bearing is mounted against a vertical shoulder surface, such as a flange or a spacing ring for instance, the removal of the ball-bearing ring becomes extremely toilsome. In fact, it becomes very difficult to insert the terminal part of the jaws of the stripper between the vertical shoulder surface and the ball-bearing ring, in order to exert on the latter the axial force necessary for the removal.
  • the jaws of the stripper are usually clamped in the sliding track of the balls belonging to the ring that needs to be removed, thus obtaining, as a rule. a better interference.
  • the stripper jaws are held in reciprocal tension by springs which can easily break, thereby causing further complications in the use of the stripper.
  • the purpose of the present invention is to eliminated the above-­mentioned inconveniences.
  • the main purpose of the invention is to make known a universal stripper for the inner rings of cylindrical ball bearings allowing the easy removal of said inner rings from the hubs on which they are mounted, even in those cases wherein said inner rings are supported against vertical shoulder surfaces.
  • Another purpose of the invention is to make known a universal stripper for the inner rings of ball bearings which is easy to manufacture and to use, has a light weight and small dimensions.
  • Not the least purpose of the invention is to make known a universal stripper for the inner rings of ball-bearings whose operation offers the highest reliability.
  • a universal stripper for the inner rings of cylindrical ball bearings which, in accordance with the patent claims, comprises a stripper body which is clamped on the inner ring to be removed and a reaction element which exerts the axial force on the hub and transmits it to the stripper body, and which is characterized in that the stripper body comprises: - a metal structure having essentially a tubolar shape presenting at one end a stripper head which has an inner ring-shaped surface with several diameters, such as to allow said stripper head to rest against the vertical wall of the ring to be removed, said ring-shaped surface presenting a plurality of radial threaded holes, equally distributed along the circumference and holding screws whose tips clamp in the sliding track of the ring and at the other end a bottom with a hole and a thread wherein a screw having its axis coinciding with the axis of the hub is screwed; said screw exerting the axial thrust
  • this tool is universal because of a plurality of stripper heads, each with a different internal diameter so as to fit inner rings of cylindrical ball bearings with corresponding diameters.
  • the stripper according to the invention which is indicated as a whole with 1, comprises a metal structure 2 having a tubular shape, which presents at one of its ends the stripper head 3 and at its other end the thrusting screw 4 which matches the fixed bottom 5 of the metal structure 2.
  • the stripper head 3 consists of a round flange 6 having an inner thread 7, through which it matches the metal structure 2, while at the opposite end it presents, as can be observed in Fig. 3, a plurality of threaded through-holes 8, arranged radially, preferably at 60 degrees from one another, which are suited to receive each a screw 9 which will be clamped on the ring to be removed.
  • the screws 9 are tightened in the holes 8 of flange 6 and they are those elements, which, when, properly maneuvered, make flange 6 integral with the ring which needs to be removed from hub 11 on which it is mounted. Moreover, the screws 9 do not protrude beyond the vertical profile 40 of flange 6, so as to allow the removal of ring 10, even when the latter is pressed against a vertical shoulder.
  • each screw 9 is tapered following a profile 12, at the apex of which a ball 13 is inserted; the task of said ball 13 is to insure the centering of each screw 9 in the sliding track 14 of the bearing balls belonging to ring 10 and, as a consequence, also the centering of flange 6.
  • flange 6 After flange 6 has been made integral with ring 10 by tightening the screws 9 within track 14 of the ring, structure 2 will be matched with flange 6.
  • structure 2 is complete with a thread 15 which matches the inner thread 7 of flange 6; structure 2 is screwed within flange 6 until the thrusting screw 4 pushes with its tip against hub 11 on which a pressing disc 16, has been set.
  • tip 17 of the thrusting screw 4 also presents a taper 18 at the apex of which a ball 19 is inserted.
  • Ball 19 has the task of insuring the co-­ axiality of the direction of thrust of screw 4 in relation to the axis 20 of hub 11.
  • the pressing disc 16 is inserted; this disc has in its center a seat 21 within which ball 19 will rest, thereby insuring the co-­axiality between the direction of thrust and axis 20 of hub 11.
  • stripper 1 is ready to perform the removal of ring from hub 11, which occurs by screwing the thrusting screw 4 by acting on hexagon 22.
  • the removal of ring 10 occurs because the screwing of screw 4 creates a thrust along axis 20 of hub 11 in the direction 23; said thrust consequently causes on structure 2 as a reaction a traction force along the same axis in the direction 24. Said traction force of structure 2 is trasmitted through flange 6 to the inner ring 10 which is to be removed.
  • the removal is completed when, by continuing the screwing action of the thrusting screw 4, the inner ring 10 has reached its final position and is level with the pressing disc 16, which also has the task of supporting the inner ring 10, when the latter begings to come off hub 1.
  • the stripper according to the invention is particularly suited for the removal of the inner rings of cylindrical ball bearings which are mounted on the wheel-hubs of automative vehicles and cars in particular. It is however understood that the stripper according to the invention can advantageously be used also in industrial applications of various types, such as, for instance, for the removal of the inner rings of cylindrical ball bearings mounted on the shafts of electric motors, of turbines and similar.
  • the profile of the stripper head it can also be used to an advantage for the removal of various mechanical elements.
  • the stripper according to the invention may undergo changes and modifications having the purpose of improving its performance or of increasing its versatily of application; said changes and modifications will, however, not exceed the scope of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Mounting Of Bearings Or Others (AREA)
EP19890115569 1988-08-29 1989-08-23 Outil universel pour extraire les anneaux internes des roulements à billes Withdrawn EP0370179A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8563288 1988-08-29
IT8885632A IT1226680B (it) 1988-08-29 1988-08-29 Estrattore universale per ghiere interne di cuscinetti cilindrici a sfere

Publications (2)

Publication Number Publication Date
EP0370179A2 true EP0370179A2 (fr) 1990-05-30
EP0370179A3 EP0370179A3 (fr) 1991-03-20

Family

ID=11329313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890115569 Withdrawn EP0370179A3 (fr) 1988-08-29 1989-08-23 Outil universel pour extraire les anneaux internes des roulements à billes

Country Status (3)

Country Link
EP (1) EP0370179A3 (fr)
FI (1) FI893960A (fr)
IT (1) IT1226680B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2371511A (en) * 2000-12-16 2002-07-31 James Stewart Inner bearing race remover
GB2384032A (en) * 2001-10-27 2003-07-16 James Stewart Outer bearing race remover
DE102013218750A1 (de) 2013-09-18 2015-03-19 Behr Gmbh & Co. Kg Befestigungseinheit für einen Wärmetauscher eines Kraftfahrzeuges
CN109955184A (zh) * 2017-12-26 2019-07-02 中冶宝钢技术服务有限公司 一种碳套辊轴承在线拆卸工装
CN112025612A (zh) * 2019-06-04 2020-12-04 中国航发商用航空发动机有限责任公司 一种轴承内环分解工具

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1346023A (en) * 1919-06-24 1920-07-06 Heinrich Frank Joseph Bearing-puller
US1355028A (en) * 1919-07-26 1920-10-05 Arthur L Blessing Cone or gear pulling tool
US1595658A (en) * 1922-02-20 1926-08-10 Frank J Heinrich Bearing puller
GB273191A (en) * 1927-01-22 1927-06-30 Victor Henri Broc A device for the withdrawal of ball races from shafts
GB353931A (en) * 1930-04-24 1931-07-24 Bertie Raymond Keith Andrews Improvements in tools for drawing ball bearings from shafts and housing pockets
GB707539A (en) * 1950-05-16 1954-04-21 V L Churchill & Company Ltd Tool for removing inner cones of taper roller bearings from axles
DE2836547A1 (de) * 1978-08-21 1980-03-06 Ludwig Geishauser Vorrichtung zum abziehen eines gliedes von einem zylindrischen zapfen
EP0258594A1 (fr) * 1986-09-01 1988-03-09 Horst Klann Dispositif de serrage pour anneaux de palier dans des moyeux de bride

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1346023A (en) * 1919-06-24 1920-07-06 Heinrich Frank Joseph Bearing-puller
US1355028A (en) * 1919-07-26 1920-10-05 Arthur L Blessing Cone or gear pulling tool
US1595658A (en) * 1922-02-20 1926-08-10 Frank J Heinrich Bearing puller
GB273191A (en) * 1927-01-22 1927-06-30 Victor Henri Broc A device for the withdrawal of ball races from shafts
GB353931A (en) * 1930-04-24 1931-07-24 Bertie Raymond Keith Andrews Improvements in tools for drawing ball bearings from shafts and housing pockets
GB707539A (en) * 1950-05-16 1954-04-21 V L Churchill & Company Ltd Tool for removing inner cones of taper roller bearings from axles
DE2836547A1 (de) * 1978-08-21 1980-03-06 Ludwig Geishauser Vorrichtung zum abziehen eines gliedes von einem zylindrischen zapfen
EP0258594A1 (fr) * 1986-09-01 1988-03-09 Horst Klann Dispositif de serrage pour anneaux de palier dans des moyeux de bride

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2371511A (en) * 2000-12-16 2002-07-31 James Stewart Inner bearing race remover
GB2384032A (en) * 2001-10-27 2003-07-16 James Stewart Outer bearing race remover
DE102013218750A1 (de) 2013-09-18 2015-03-19 Behr Gmbh & Co. Kg Befestigungseinheit für einen Wärmetauscher eines Kraftfahrzeuges
CN109955184A (zh) * 2017-12-26 2019-07-02 中冶宝钢技术服务有限公司 一种碳套辊轴承在线拆卸工装
CN112025612A (zh) * 2019-06-04 2020-12-04 中国航发商用航空发动机有限责任公司 一种轴承内环分解工具
CN112025612B (zh) * 2019-06-04 2021-10-29 中国航发商用航空发动机有限责任公司 一种轴承内环分解工具

Also Published As

Publication number Publication date
IT8885632A0 (it) 1988-08-29
FI893960A0 (fi) 1989-08-23
FI893960A (fi) 1990-03-01
IT1226680B (it) 1991-01-31
EP0370179A3 (fr) 1991-03-20

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