WO1983004206A1 - Procede et dispositif pour comprimer des ressorts de soupape - Google Patents

Procede et dispositif pour comprimer des ressorts de soupape Download PDF

Info

Publication number
WO1983004206A1
WO1983004206A1 PCT/US1982/000782 US8200782W WO8304206A1 WO 1983004206 A1 WO1983004206 A1 WO 1983004206A1 US 8200782 W US8200782 W US 8200782W WO 8304206 A1 WO8304206 A1 WO 8304206A1
Authority
WO
WIPO (PCT)
Prior art keywords
clearance structure
valve spring
valve
force applicator
cylinder head
Prior art date
Application number
PCT/US1982/000782
Other languages
English (en)
Inventor
Duane E. Klyber
Original Assignee
Klyber Duane E
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 Klyber Duane E filed Critical Klyber Duane E
Priority to PCT/US1982/000782 priority Critical patent/WO1983004206A1/fr
Publication of WO1983004206A1 publication Critical patent/WO1983004206A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/042—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts specially adapted for combustion engines
    • B23P19/045—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts specially adapted for combustion engines for assembling valve cotters and retainers of engine valves
    • 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
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/24—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves
    • B25B27/26—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves compressing the springs

Definitions

  • This invention relates to a method and apparatus for servicing an engine and, more particularly, to a method and apparatus for compressing valve springs associated with an engine cylinder head.
  • valve spring Compression of such valve spring was obtained by selectively actuating ' (preferably with high pressure air or hydraulic fluid) a plunger or other movable member mounted on the remaining leg of the C-shaped member.
  • ' preferably with high pressure air or hydraulic fluid
  • a plunger or other movable member mounted on the remaining leg of the C-shaped member.
  • either the C-shaped member or the cylinder head assembly had to be repositioned prior to each valve spring compression and, as such, required aligning both legs of the C-shaped member for each valve spring.
  • a cylinder head valve spring compression apparatus for suitably compressing valve springs.
  • Such apparatus includes a table for supporting the valve springs, a clearance structure which is supported by the table, a force applicator which is mounted on the clearance structure, and means for displacing the force applicator so as ⁇ to ⁇ arign ⁇ ⁇ t ⁇ with any selected valve spring.
  • a method for compressing a valve spring on an engine cylinder head through the use of a table which supports the cylinder head, a clearance structure joined to the table, and a force applicator mounted on the clearance structure for engagement with a valve spring.
  • the valve spring compression method generally includes translating the clearance structure relative to the cylinder head, pivoting a portion of the clearance structure so as to align the force applicator with a valve spring, and actuating the force applicator to compress the valve sp ing.
  • Fig. 1 is a front elevational view, partially broken, of an engine cylinder head valve spring compressor apparatus
  • Fig. 2 is a side view, partially broken, of the apparatus illustrated in Fig. 1;
  • Fig. 3 is a plan view of a portion of the apparatus illustrated in Fig. 1;
  • Fig. 4 is an elevational view of the valve spring in its normal and its compressed state.
  • Fig. 1 illustrates two cylinder heads 10 having exposed valve springs 12 and valves 13. While two cylinder heads 10 are illustrated, it is to be understood that such number is by example only and fewer or more cylinder heads 10 could be worked upon within the scope of the present invention. For the sake of simplicity, only one of the cylinder heads will be referred to hereafter. Assembling valves with a cylinder head 10 and valve spring 12 necessitates compression of the valve spring 12 to a predetermined length. Likewise, when the valve 13 is to be removed from the cylinder head 10, the valve spring 12 must be compressed a sufficient amount to permit removal of an associated valve keeper assembly 14 (best illustrated in Fig. 4) which captures the spring 12 in cooperative engagement with the valve 13.
  • the valve keeper assembly 14 includes a valve engager structure 14a which engages the valve 13 and a locking structure 14b which engages the valve spring 12 and engager structure 14a.
  • OMPI_ A valve spring compressing apparatus 16 is illustrated in Fig. 1 and may be seen to include a table 18 on which the cylinder head(s) 10 is supported, a clearance structure 20 which is mounted on the table 18, a force applicator 22 which is attached to the clearance structure 20 and is engageable with a desired one of the valve springs 12 when suitably aligned with it, and means for displacing the force applicator 22 to provide alignment between the selected valve spring 12 and the force applicator 22.
  • the table 18 has a guide portion 26 and the clearance structure 20 includes a first portion 28 (which is connected to and guided by the table guide portion 26) and a second portion 29.
  • the table guide portion 26 includes a directing bar 30 (preferably of circular cross section) which extends substantially the length of the table 18 and a runway 32 which, likewise, extends substantially the entire length of the table 18.
  • the table 18 further includes a moment resisting element ⁇ 33 which is arranged in closely spaced relationship with the clearance structure's first portion 28.
  • the clearance structure's first portion 28 has a slidable follower 34 which is disposed about the bar 30, a roller 36 which is engageable with the runway 32, and a rotatably adjustable cam 37 which is engageable with the runway 32 opposite the roller 36.
  • the clearance structure's second portion 29 is pivotally mounted on the first portion 28 and includes a shaft 38 which is pivotable about a preferably vertically oriented axis AA.
  • the clearance structure's first portion 28 includes a top and bottom support element 40 within which the shaft 38 is journailed.
  • the clearance structure's second portion 29 also includes an extension arm 42 having a proximal end which is joined to the pivot shaft 38 so as to pivot therewith and a distal end to which the force applicator 22 is joined.
  • the force applicator 22 has a retainer assembly 44 which is engageable with the desired valve spring keeper assembly 14, an adapter element 46, and a chuck 48 to which the adapter element 46 is affixed.
  • An extensible plunger 50 also constitutes a portion of the force applicator 22 and is extensible and retractable through manipulation of an actuating lever 52 which directs pressurized fluid to an appropriate side of a force cylinder 53.
  • An extensible, flexible hose 54 is connected at a first end to a high pressure fluid source and at a second end to a preferably rigid conduit 56. The first end is supported by the table 18 while the conduit 56 is joined to and braced by the clearance structure's first portion 28.
  • the hose 54 is of sufficient length to permit translation of the clearance structure 20 to any point along the directing bar 30.
  • the rigid conduit 56 is connected via a flexible hose 60 to a valve 58 which constitutes a portion of the force applicator 22.
  • Conduits 62 and 64 interconnect individual ports of the valve 58 with opposite ends of the force cylinder 53.
  • valve spring compressor apparatus 16 is useful for compressing valve springs 12 on any size cylinder head having any number of valves with any valve spacing.
  • the entire clearance structure 20 is translatable relative to an axis BB extending through the guide bar 30 while the force applicator 22 is pivotable about the pivot axis AA along a path CC (best illustrated in Fig. 3) relative to the clearance structure's first portion 28.
  • OMPI 29 when pivoted about the pivot axis AA, sweeps out a semi-circular area.
  • alignment with any valve spring 12 and associated keeper assembly 14 can be attained.
  • the force applicator retainer assembly 44 has been suitably aligned with a valve spring 12, the actuating lever 52 is moved in the appropriate direction to compress the valve spring 12.
  • the actuating lever 52 is moved to a non-actuating position in which the plunger 50 is retracted and the clearance structure 20 undergoes a slight clockwise rotation about the translation axis BB due to the overhanging moment imposed by the weight of the extension arm 42 and force applicator 22.
  • Such clockwise rotation (as viewed in Fig. 2) continues until the roller 36 engages the runway 32, prevents further rotation, and thereafter promotes translation movement and augments support for the clearance structure 20 provided by the slidable follower 34.
  • Removal of the valve keeper assembly 14 is provided by extracting the valve engagement structure 14a (partially disengaged in Fig. 4) prior to releasing the compressive force exerted on the locking structure 14b and, subsequently to such releasing, removal of the locking structure 14b.
  • the force applicator 22 utilizes a pneumatic cylinder mechanism for moving the plunger 50.
  • Compressed air is supplied to the hose_ 54 from which it is transmitted sequentially through the conduit 56, hose 60, and then either conduit 62 or conduit 64 depending upon the desired direction of plunger 50 movement as dictated by the direction of rotation of the actuation lever 52.
  • the clearance structure 20 and associated force applicator 22 are easily indexed to the next desired valve- spring through translation of the clearance structure 20 along the axis BB and pivoting of the force applicator 22 and clearance structure's second portion 29 about the pivot axis AA.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automatic Assembly (AREA)

Abstract

Dispositif (16) et procédé pour comprimer des ressorts de soupape (12). Le dispositif (16) comprend une table (18) permettant la fixation des culasses (10) du moteur et des ressorts de soupape (12) associés, une structure d'espace de levée (20) maintenue par la table et mobile par rapport à celle-ci, et un applicateur de force (22) monté sur la structure d'espace de levée qui comprime un ressort de soupape (12) lorsqu'il est aligné avec ce ressort. La structure d'espace de levée (20) comprend une première partie (28) qui est montée de manière mobile sur la table (18) et une deuxième partie (29) qui est montée de manière pivotante sur la première partie (28). Le déplacement de la première partie (28) de la structure d'espace de levée et le mouvement pivotant de la deuxième partie (29) de la structure d'espace de levée se font sur des plans qui sont perpendiculaires entre eux de manière à permettre l'accès et l'alignement entre l'applicateur de force et tout ressort de soupape avant l'actionnement de l'applicateur de force.
PCT/US1982/000782 1982-06-04 1982-06-04 Procede et dispositif pour comprimer des ressorts de soupape WO1983004206A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1982/000782 WO1983004206A1 (fr) 1982-06-04 1982-06-04 Procede et dispositif pour comprimer des ressorts de soupape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1982/000782 WO1983004206A1 (fr) 1982-06-04 1982-06-04 Procede et dispositif pour comprimer des ressorts de soupape

Publications (1)

Publication Number Publication Date
WO1983004206A1 true WO1983004206A1 (fr) 1983-12-08

Family

ID=22168034

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1982/000782 WO1983004206A1 (fr) 1982-06-04 1982-06-04 Procede et dispositif pour comprimer des ressorts de soupape

Country Status (1)

Country Link
WO (1) WO1983004206A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987007198A1 (fr) * 1986-05-26 1987-12-03 Roberto Longobardi Outillage pour effectuer des travaux mecaniques et d'entretien sur les culasses de moteurs a combustion interne
CN108581954A (zh) * 2018-05-25 2018-09-28 河南森源电气股份有限公司 弹簧压缩安装装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1621237A (en) * 1925-06-23 1927-03-15 Davis Roberta Mcclain Valve-spring compressor
US1849538A (en) * 1930-02-10 1932-03-15 Jr Ernest Bernitz Utility device
US2173398A (en) * 1937-02-06 1939-09-19 H & H Machine & Motor Parts Co Machine-shop fixture
US3046644A (en) * 1960-05-12 1962-07-31 Florence Vivian Gehrig Valve spring depressor
US4022453A (en) * 1976-06-28 1977-05-10 Caterpillar Tractor Co. Clamp for engine head service test bench

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1621237A (en) * 1925-06-23 1927-03-15 Davis Roberta Mcclain Valve-spring compressor
US1849538A (en) * 1930-02-10 1932-03-15 Jr Ernest Bernitz Utility device
US2173398A (en) * 1937-02-06 1939-09-19 H & H Machine & Motor Parts Co Machine-shop fixture
US3046644A (en) * 1960-05-12 1962-07-31 Florence Vivian Gehrig Valve spring depressor
US4022453A (en) * 1976-06-28 1977-05-10 Caterpillar Tractor Co. Clamp for engine head service test bench

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987007198A1 (fr) * 1986-05-26 1987-12-03 Roberto Longobardi Outillage pour effectuer des travaux mecaniques et d'entretien sur les culasses de moteurs a combustion interne
CN108581954A (zh) * 2018-05-25 2018-09-28 河南森源电气股份有限公司 弹簧压缩安装装置

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