FR2396621A1 - Piston rod for hydraulic pump or motor - has holes in spherical ends formed by electro erosion for fitting to shaft - Google Patents

Piston rod for hydraulic pump or motor - has holes in spherical ends formed by electro erosion for fitting to shaft

Info

Publication number
FR2396621A1
FR2396621A1 FR7721068A FR7721068A FR2396621A1 FR 2396621 A1 FR2396621 A1 FR 2396621A1 FR 7721068 A FR7721068 A FR 7721068A FR 7721068 A FR7721068 A FR 7721068A FR 2396621 A1 FR2396621 A1 FR 2396621A1
Authority
FR
France
Prior art keywords
holes
motor
hydraulic pump
hole
shaft
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Withdrawn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
FR7721068A
Other languages
French (fr)
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
Priority to FR7721068A priority Critical patent/FR2396621A1/en
Publication of FR2396621A1 publication Critical patent/FR2396621A1/en
Withdrawn legal-status Critical Current

Links

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
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
    • 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
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • 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
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/04—Connecting rods

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Motors (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The piston rods for a hydraulic pump or motor has a tapered shaft with a double spherical end. The smaller end has a blind hole in the sphere, tapped to screw onto the threaded small end. The larger end similarly has a hole tapped in a larger sphere, but the sphere screws up against a shoulder on the larger diameter end. These holes are formed by electro erosion, and are made from commercial ball bearings. Each hole has a clearance gap at the bottom. In an alternative design, the holes are plain holes, and each ball has a spigot which is brazed into the hole.
FR7721068A 1977-07-08 1977-07-08 Piston rod for hydraulic pump or motor - has holes in spherical ends formed by electro erosion for fitting to shaft Withdrawn FR2396621A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7721068A FR2396621A1 (en) 1977-07-08 1977-07-08 Piston rod for hydraulic pump or motor - has holes in spherical ends formed by electro erosion for fitting to shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721068A FR2396621A1 (en) 1977-07-08 1977-07-08 Piston rod for hydraulic pump or motor - has holes in spherical ends formed by electro erosion for fitting to shaft

Publications (1)

Publication Number Publication Date
FR2396621A1 true FR2396621A1 (en) 1979-02-02

Family

ID=9193147

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721068A Withdrawn FR2396621A1 (en) 1977-07-08 1977-07-08 Piston rod for hydraulic pump or motor - has holes in spherical ends formed by electro erosion for fitting to shaft

Country Status (1)

Country Link
FR (1) FR2396621A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441240A (en) * 1979-12-28 1984-04-10 Daido Metal Company, Ltd. Method of producing connecting rod of a radial piston motor
CN106640598A (en) * 2016-10-20 2017-05-10 珠海格力节能环保制冷技术研究中心有限公司 Connecting rod structure and compressor
CN107498272A (en) * 2017-10-18 2017-12-22 博尔德南通汽车零部件有限公司 Piston rod processing technology
CN107570975A (en) * 2017-10-18 2018-01-12 博尔德南通汽车零部件有限公司 A kind of piston rod processing technology

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441240A (en) * 1979-12-28 1984-04-10 Daido Metal Company, Ltd. Method of producing connecting rod of a radial piston motor
CN106640598A (en) * 2016-10-20 2017-05-10 珠海格力节能环保制冷技术研究中心有限公司 Connecting rod structure and compressor
CN107498272A (en) * 2017-10-18 2017-12-22 博尔德南通汽车零部件有限公司 Piston rod processing technology
CN107570975A (en) * 2017-10-18 2018-01-12 博尔德南通汽车零部件有限公司 A kind of piston rod processing technology

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Legal Events

Date Code Title Description
ST Notification of lapse