WO2004082887A1 - A harmonic balancer puller - Google Patents

A harmonic balancer puller Download PDF

Info

Publication number
WO2004082887A1
WO2004082887A1 PCT/AU2004/000333 AU2004000333W WO2004082887A1 WO 2004082887 A1 WO2004082887 A1 WO 2004082887A1 AU 2004000333 W AU2004000333 W AU 2004000333W WO 2004082887 A1 WO2004082887 A1 WO 2004082887A1
Authority
WO
WIPO (PCT)
Prior art keywords
harmonic balancer
puller
harmonic
balancer
spokes
Prior art date
Application number
PCT/AU2004/000333
Other languages
French (fr)
Inventor
Glen Robert Duffy
Original Assignee
Glen Robert Duffy
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
Priority claimed from AU2003901275A external-priority patent/AU2003901275A0/en
Application filed by Glen Robert Duffy filed Critical Glen Robert Duffy
Publication of WO2004082887A1 publication Critical patent/WO2004082887A1/en

Links

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
    • 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
    • B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles

Definitions

  • a HARMONIC BALANCER PULLER TECHNICAL FIELD This invention relates to a harmonic balancer puller.
  • a harmonic balancer is typically mounted to an end of a crankshaft of an engine and absorbs vibrations produced by the crankshaft and flywheel assembly of the engine.
  • Harmonic balancers for some types of vehicles have a hub, an outer ring and spokes extending between the hub and the ring. A central opening of the hub receives the end of the crankshaft.
  • the outer ring has a rubber lining. Threaded apertures may be located in the spokes and may extend through the spokes.
  • the present inventor has now developed a harmonic balancer puller that overcomes or at least minimises the problems associated with removing a harmonic balancer referred to above.
  • a harmonic balancer puller for removing a harmonic balancer of the type having a hub, an outer ring and spokes extending between the hub and the ring
  • the harmonic balancer puller has: a body; retainers extending from the body for engaging the spokes; and a drive extending from the body and having an end movable relative to the body, whereby in use the retainers are engaged with the spokes and the drive is engaged with an end of a crankshaft to move the harmonic balancer away from the end of the crankshaft as the end of the drive is moved relatively away from the body.
  • the drive comprises a jacking arrangement.
  • the end of the drive may be moved, for instance, manually, pneumatically or hydraulically.
  • the drive includes a jacking bolt extending through a central threaded opening in the body, and the end of the bolt is movable relatively towards and away from the body by rotating the jacking bolt relative to the body.
  • the body may be of any suitable size, shape and construction.
  • the body comprises a disk.
  • a rim may extend from the disk.
  • the central threaded opening in the body may be located in the disk.
  • a boss may extend around the opening.
  • the body may have openings that coincide with threaded apertures in the spokes of the harmonic balancer.
  • the harmonic balancer puller may have bolts extending through the openings for releasably securing the body to the harmonic balancer.
  • the openings may be threaded or they may be radially extending slots so that the bolts may be positioned along the slots such that they coincide with spaced apertures of different types of harmonic balancers.
  • the retainers may be of any suitable size, shape and construction.
  • the retainers may engage the spokes in any suitable way.
  • the retainers may all be identical to one another in configuration or they may differ from one another.
  • each retainer is a hook adapted to extend around a respective spoke of the harmonic balancer.
  • the retainers may extend from the disk or from the rim of the body. Hooked end portions of the hooks may be arcuate and extend part way around a notional circumference identical to a circumference of the disk.
  • the body and retainers may be of unitary construction or they may comprise two or more connected pieces.
  • the pieces may be attached to one another in any suitable way.
  • the pieces may be, for example, welded, glued pinned or riveted together.
  • the harmonic balancer puller may be made of any suitable material or materials.
  • the harmonic balancer puller is made of metal.
  • FIG. 1 is a perspective view of a harmonic balancer puller according to a first embodiment of the invention
  • Figure 2 is a perspective view of part of the harmonic balancer puller shown in Figure 1 ;
  • Figure 3 is a detailed plan view of Figure 2;
  • Figure 4 is a cross-sectional through plane A-A of Figure 3;
  • Figure 5 is a bottom perspective view of part of the harmonic balancer puller shown in Figure 2;
  • Figure 6 is a bottom perspective view of part of a harmonic balancer puller according to a second embodiment of the invention
  • Figure 7 is a bottom plan view of Figure 6
  • Figure 8 is a cross-sectional through plane A-A of Figure 7.
  • Figure 1 shows a harmonic balancer puller 1 having a body 2, three hooks 3 for engaging spokes of a harmonic balancer (not shown) and a jacking bolt 4.
  • the body 2 comprises a disk 5 and a rim 6 extending from the disk 5.
  • a threaded opening 7 extends through a centre of the disk 5.
  • the hooks 3 extend from the rim 6 and are equidistantly spaced from one another. Hooked end portions 8 of the hooks 3 are arcuate and extend part way around a notional circumference identical to a circumference of the disk 5. A spoke of a harmonic balancer is locatable within a space 9 between each hooked end portion 8 and the rim 6.
  • the body 2 and hooks 3 are of unitary construction and are made of metal.
  • the jacking bolt 4 has a hexagonal head 10 and a threaded shank 12.
  • the threaded shank 12 extends through opening 7 and an end 11 of the jacking bolt 10 is movable relative to the body 2 by rotating the bolt 4 relative to the body 2.
  • the harmonic balancer puller 1 is particularly suited to pull harmonic balancers from crankshafts of engines six cylinder Ford Falcon models produced after the year 1997, Commodore VN- 1988 to current V6 models, and General Motors GEN III V8 engines.
  • the jacking bolt 4 In order to pull a harmonic balancer from an end of a crankshaft, the jacking bolt 4 is rotated such that end 11 does not extend past the rim 6. The hooks 3 are then manoeuvred into engagement with the spokes of the harmonic balancer. Jacking bolt 4 is then rotated such that end 11 is driven into engagement with the crankshaft, and continued rotation of the jacking bolt 4 results in end 11 extending relative to the body 2 and the harmonic balancer is pulled from the end of the crankshaft.
  • Figures 6 to 8 show another harmonic balancer puller 20 that is similar to harmonic balancer puller 1 , but a jacking bolt (like bolt 4) has been omitted from the figures.
  • Harmonic balancer puller 20 has a body 21 comprising a disk 21 and three hooks 22 extend from the disk 21.
  • a boss 24 having a threaded opening 23 is located at a centre of the disk 21.
  • Harmonic balancer puller 20 is used in the same way as puller 1 , except that puller 20 has three radially extending slots 25 in the disk 21 that coincide with threaded apertures in spokes of a harmonic balancer. Bolts (not shown) are extendable through the slots 25 and releasably secure the disk 21 to the harmonic balancer. Bolts may be positioned along the slots 25 so that they coincide with spaced apertures of different types of harmonic balancers.
  • the harmonic balancer puller 1 , 20 may be used to carefully remove a harmonic balancer in a situation where there is little clearance between an engine and a radiator of a vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

A harmonic balancer puller (1) for removing a harmonic balancer of the type having a hub, an outer ring and spokes extending between the hub and the ring. The harmonic balancer puller (1) has a body (2), three hooks (3) for engaging the spokes and a jacking bolt (4). In order to pull the harmonic balancer from an end of a crankshaft, the hooks (3) are manoeuvred into engagement with the spokes. The jacking bolt (4) is then rotated such that end (11) is driven into engagement with the crankshaft, and continued rotation of the jacking bolt (4) results in the end (11) extending relative to the body (2) and the harmonic balancer is pulled from the end of the crankshaft.

Description

A HARMONIC BALANCER PULLER TECHNICAL FIELD This invention relates to a harmonic balancer puller.
BAC.€βR©UMD ART A harmonic balancer is typically mounted to an end of a crankshaft of an engine and absorbs vibrations produced by the crankshaft and flywheel assembly of the engine. Harmonic balancers for some types of vehicles have a hub, an outer ring and spokes extending between the hub and the ring. A central opening of the hub receives the end of the crankshaft. The outer ring has a rubber lining. Threaded apertures may be located in the spokes and may extend through the spokes.
In some types of vehicles there is little clearance between an engine and a radiator of the vehicle, and hence removing a harmonic balancer from a crankshaft of the engine may be difficult, and if the harmonic balancer is not carefully removed, the crankshaft may be damaged.
The present inventor has now developed a harmonic balancer puller that overcomes or at least minimises the problems associated with removing a harmonic balancer referred to above.
SUMMARY OF THE INVENTION According to the present invention, there is provided a harmonic balancer puller for removing a harmonic balancer of the type having a hub, an outer ring and spokes extending between the hub and the ring, wherein the harmonic balancer puller has: a body; retainers extending from the body for engaging the spokes; and a drive extending from the body and having an end movable relative to the body, whereby in use the retainers are engaged with the spokes and the drive is engaged with an end of a crankshaft to move the harmonic balancer away from the end of the crankshaft as the end of the drive is moved relatively away from the body.
Any suitable type of drive may be used but preferably the drive comprises a jacking arrangement. The end of the drive may be moved, for instance, manually, pneumatically or hydraulically. Preferably, the drive includes a jacking bolt extending through a central threaded opening in the body, and the end of the bolt is movable relatively towards and away from the body by rotating the jacking bolt relative to the body.
The body may be of any suitable size, shape and construction. Preferably, the body comprises a disk. A rim may extend from the disk. The central threaded opening in the body may be located in the disk. A boss may extend around the opening.
The body may have openings that coincide with threaded apertures in the spokes of the harmonic balancer. The harmonic balancer puller may have bolts extending through the openings for releasably securing the body to the harmonic balancer. The openings may be threaded or they may be radially extending slots so that the bolts may be positioned along the slots such that they coincide with spaced apertures of different types of harmonic balancers.
The retainers may be of any suitable size, shape and construction. The retainers may engage the spokes in any suitable way. The retainers may all be identical to one another in configuration or they may differ from one another.
Preferably, each retainer is a hook adapted to extend around a respective spoke of the harmonic balancer. The retainers may extend from the disk or from the rim of the body. Hooked end portions of the hooks may be arcuate and extend part way around a notional circumference identical to a circumference of the disk.
The body and retainers may be of unitary construction or they may comprise two or more connected pieces. The pieces may be attached to one another in any suitable way. The pieces may be, for example, welded, glued pinned or riveted together. The harmonic balancer puller may be made of any suitable material or materials. Preferably, the harmonic balancer puller is made of metal. Preferred embodiments of the invention will now be described by way of example with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE RA IN S Figure 1 is a perspective view of a harmonic balancer puller according to a first embodiment of the invention;
Figure 2 is a perspective view of part of the harmonic balancer puller shown in Figure 1 ;
Figure 3 is a detailed plan view of Figure 2; Figure 4 is a cross-sectional through plane A-A of Figure 3; Figure 5 is a bottom perspective view of part of the harmonic balancer puller shown in Figure 2;
Figure 6 is a bottom perspective view of part of a harmonic balancer puller according to a second embodiment of the invention; Figure 7 is a bottom plan view of Figure 6; and Figure 8 is a cross-sectional through plane A-A of Figure 7.
BEST MODE AND OTHER MODES OF CARRYING OUT THE INVENTION
Like reference numerals refer to like features.
Figure 1 shows a harmonic balancer puller 1 having a body 2, three hooks 3 for engaging spokes of a harmonic balancer (not shown) and a jacking bolt 4. Referring now to Figures 1 to 5, the body 2 comprises a disk 5 and a rim 6 extending from the disk 5. A threaded opening 7 extends through a centre of the disk 5.
The hooks 3 extend from the rim 6 and are equidistantly spaced from one another. Hooked end portions 8 of the hooks 3 are arcuate and extend part way around a notional circumference identical to a circumference of the disk 5. A spoke of a harmonic balancer is locatable within a space 9 between each hooked end portion 8 and the rim 6.
The body 2 and hooks 3 are of unitary construction and are made of metal. Referring now to Figure 1 , the jacking bolt 4 has a hexagonal head 10 and a threaded shank 12. The threaded shank 12 extends through opening 7 and an end 11 of the jacking bolt 10 is movable relative to the body 2 by rotating the bolt 4 relative to the body 2. The harmonic balancer puller 1 is particularly suited to pull harmonic balancers from crankshafts of engines six cylinder Ford Falcon models produced after the year 1997, Commodore VN- 1988 to current V6 models, and General Motors GEN III V8 engines.
In order to pull a harmonic balancer from an end of a crankshaft, the jacking bolt 4 is rotated such that end 11 does not extend past the rim 6. The hooks 3 are then manoeuvred into engagement with the spokes of the harmonic balancer. Jacking bolt 4 is then rotated such that end 11 is driven into engagement with the crankshaft, and continued rotation of the jacking bolt 4 results in end 11 extending relative to the body 2 and the harmonic balancer is pulled from the end of the crankshaft.
Figures 6 to 8 show another harmonic balancer puller 20 that is similar to harmonic balancer puller 1 , but a jacking bolt (like bolt 4) has been omitted from the figures. Harmonic balancer puller 20 has a body 21 comprising a disk 21 and three hooks 22 extend from the disk 21. A boss 24 having a threaded opening 23 is located at a centre of the disk 21.
Harmonic balancer puller 20 is used in the same way as puller 1 , except that puller 20 has three radially extending slots 25 in the disk 21 that coincide with threaded apertures in spokes of a harmonic balancer. Bolts (not shown) are extendable through the slots 25 and releasably secure the disk 21 to the harmonic balancer. Bolts may be positioned along the slots 25 so that they coincide with spaced apertures of different types of harmonic balancers.
In this way, the harmonic balancer puller 1 , 20 may be used to carefully remove a harmonic balancer in a situation where there is little clearance between an engine and a radiator of a vehicle.

Claims

1. A harmonic balancer puller for removing a harmonic balancer of the type having a hub, an outer ring and spokes extending between the hub and the ring, wherein the harmonic balancer puller has:
retainers extending from the body for engaging the spokes; and a drive extending from the body and having an end movable relative to the body, whereby in use the retainers are engaged with the spokes and the drive is engaged with an end of a crankshaft to move the harmonic balancer away from the end of the crankshaft as the end of the drive is moved relatively away from the body.
2. The harmonic balancer puller of claim 1 , wherein the drive includes a jacking bolt extending through a central threaded opening in the body, and the end of the bolt is movable relatively towards and away from the body by rotating the jacking bolt relative to the body.
3. The harmonic balancer puller of claim 1 or claim 2, wherein each said retainer is a hook adapted to extend around a respective spoke of the harmonic balancer.
4. The harmonic balancer puller of any one of the preceding claims, wherein the body has openings that coincide with threaded apertures in the spokes of the harmonic balancer, and the harmonic balancer puller further has bolts extending through the openings for releasably securing the body to the harmonic balancer.
5. The harmonic balancer puller of claim 4, wherein the openings are slots.
6. The harmonic balancer puller of any one of claims 1 to 5, wherein the body comprises a disk and a rim, and the retainers extend from the rim.
7. The harmonic balancer puller of any one of claims 1 to 5, wherein the body comprises a disk and the retainers extend from the disk.
PCT/AU2004/000333 2003-03-19 2004-03-18 A harmonic balancer puller WO2004082887A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU2003901275 2003-03-19
AU2003901275A AU2003901275A0 (en) 2003-03-19 2003-03-19 Harmonic balancer puller
AU2003220731A AU2003220731C1 (en) 2003-03-19 2003-07-22 A Harmonic Balancer Puller
AU2003220731 2003-07-22

Publications (1)

Publication Number Publication Date
WO2004082887A1 true WO2004082887A1 (en) 2004-09-30

Family

ID=33030373

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2004/000333 WO2004082887A1 (en) 2003-03-19 2004-03-18 A harmonic balancer puller

Country Status (2)

Country Link
AU (1) AU2003220731C1 (en)
WO (1) WO2004082887A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2000263A1 (en) * 2007-06-05 2008-12-10 Peugeot Citroën Automobiles Société Anonyme Device for extracting the pulley of a high-pressure pump in a vehicle.
CN101745888B (en) * 2008-12-15 2011-09-28 鞍钢股份有限公司 Method for disassembling clamping block of flying shear
CN102303301A (en) * 2011-08-11 2012-01-04 镇江中船设备有限公司 Flame ring dismounting device of diesel engine cylinder liner
EP2458228A1 (en) * 2010-11-30 2012-05-30 General Electric Company Jacking mechanism
TWI650211B (en) * 2018-04-10 2019-02-11 欣富康實業有限公司 Axle puller

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD931698S1 (en) 2020-01-30 2021-09-28 G & G Technics Pty Ltd Harmonic balancer puller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457061A (en) * 1982-03-31 1984-07-03 Dowley Manufacturing, Inc. Harmonic balancer installer
US4929111A (en) * 1987-03-02 1990-05-29 Giuseppe Lauritano Tool manipulating harmonic balancer
EP0849050A1 (en) * 1996-12-20 1998-06-24 SKF Maintenance Products B.V. Puller Device
WO1999056034A1 (en) * 1998-04-30 1999-11-04 Simpson Industries, Inc. Spoke centered puller tab crankshaft damper hub

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1131868A (en) * 1915-03-16 John R Ridlon Means for drawing gears, pulleys, &c., from shafts.
US1043400A (en) * 1912-03-07 1912-11-05 George A Collison Wheel-puller.
US4649615A (en) * 1984-06-11 1987-03-17 Hundley Kenn W Complete puller tool
TWM266140U (en) * 2004-04-14 2005-06-01 Super Unique Entpr Co Ltd Improved structure of universal pulling tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457061A (en) * 1982-03-31 1984-07-03 Dowley Manufacturing, Inc. Harmonic balancer installer
US4929111A (en) * 1987-03-02 1990-05-29 Giuseppe Lauritano Tool manipulating harmonic balancer
EP0849050A1 (en) * 1996-12-20 1998-06-24 SKF Maintenance Products B.V. Puller Device
WO1999056034A1 (en) * 1998-04-30 1999-11-04 Simpson Industries, Inc. Spoke centered puller tab crankshaft damper hub

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2000263A1 (en) * 2007-06-05 2008-12-10 Peugeot Citroën Automobiles Société Anonyme Device for extracting the pulley of a high-pressure pump in a vehicle.
FR2916996A1 (en) * 2007-06-05 2008-12-12 Peugeot Citroen Automobiles Sa DEVICE FOR EXTRACTING THE HIGH PRESSURE PUMP PULLEY IN A VEHICLE.
CN101745888B (en) * 2008-12-15 2011-09-28 鞍钢股份有限公司 Method for disassembling clamping block of flying shear
EP2458228A1 (en) * 2010-11-30 2012-05-30 General Electric Company Jacking mechanism
CN102556882A (en) * 2010-11-30 2012-07-11 通用电气公司 Jacking mechanism
US8602390B2 (en) 2010-11-30 2013-12-10 General Electric Company Jacking mechanism
CN102303301A (en) * 2011-08-11 2012-01-04 镇江中船设备有限公司 Flame ring dismounting device of diesel engine cylinder liner
TWI650211B (en) * 2018-04-10 2019-02-11 欣富康實業有限公司 Axle puller

Also Published As

Publication number Publication date
AU2003220731A1 (en) 2007-02-15
AU2003220731B2 (en) 2009-12-10
AU2003220731C1 (en) 2010-06-17

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