FR2439375A1 - Tool for inserting tubes into heat exchangers - compresses stack of O=rings in axial direction to expand tube radially into header plate - Google Patents
Tool for inserting tubes into heat exchangers - compresses stack of O=rings in axial direction to expand tube radially into header plateInfo
- Publication number
- FR2439375A1 FR2439375A1 FR7925600A FR7925600A FR2439375A1 FR 2439375 A1 FR2439375 A1 FR 2439375A1 FR 7925600 A FR7925600 A FR 7925600A FR 7925600 A FR7925600 A FR 7925600A FR 2439375 A1 FR2439375 A1 FR 2439375A1
- Authority
- FR
- France
- Prior art keywords
- rings
- tool
- axial direction
- heat exchangers
- header plate
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
- B21D39/203—Tube expanders with mandrels, e.g. expandable expandable by fluid or elastic material
- B21D39/206—Tube expanders with mandrels, e.g. expandable expandable by fluid or elastic material by axially compressing the elastic material
-
- 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
- B23P19/02—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 connecting objects by press fit or for detaching same
- B23P19/022—Extracting or inserting relatively long parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A tool for inserting the tubes (20) of tubular heat exchangers into the header plates (64) consists of a shaft (56) with a coned end (32). The shaft (56) has a central bore to receive a screwed rod (40) with a stepped tapered end (44, 46, 48). The tapered end (48) is used to guide the tube (20) into the hole in the header plate (64). When the tube (20) is in position it is expanded by screwing down the piston (42) by means of the rod (40). The piston compresses a stack of elastomeric O-rings (28) in the axial direction causing them to expand radially so that they in turn expand the tube (20).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/951,927 US4263713A (en) | 1978-10-16 | 1978-10-16 | Apparatus for actuating and extracting a tube guide-expander |
US05/955,688 US4235013A (en) | 1978-10-30 | 1978-10-30 | Tube guide-expander |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2439375A1 true FR2439375A1 (en) | 1980-05-16 |
FR2439375B1 FR2439375B1 (en) | 1986-11-28 |
Family
ID=27130321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7925600A Expired FR2439375B1 (en) | 1978-10-16 | 1979-10-15 | GUIDE-EXPANDER FOR BOILER TUBES |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2940020A1 (en) |
ES (1) | ES485077A0 (en) |
FR (1) | FR2439375B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2550117A1 (en) * | 1983-08-02 | 1985-02-08 | Arbel Industrie | Device for extracting rings and particularly large expansible plugs |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2135861A (en) * | 1935-08-07 | 1938-11-08 | Colonial Broach Co | Pull broaching machine |
US2751229A (en) * | 1953-11-16 | 1956-06-19 | Arthur B Schultz | Releasable gripper for holding an article suspended |
FR1377413A (en) * | 1963-09-13 | 1964-11-06 | Creusot Forges Ateliers | Expansion device |
US3791011A (en) * | 1972-04-24 | 1974-02-12 | J Keys | Tube pulling device |
US3835520A (en) * | 1973-09-10 | 1974-09-17 | Harris R | Tube pulling apparatus |
US4006619A (en) * | 1975-08-07 | 1977-02-08 | James Hilbert Anderson | Tube expander utilizing hydraulically actuated pistons |
DE2641950A1 (en) * | 1975-09-18 | 1977-03-24 | Ici Ltd | Sealing of joint between tube and header plate - has deformable bush exppppanding tube againsssst nylon insert(BE170377) |
-
1979
- 1979-10-03 DE DE19792940020 patent/DE2940020A1/en not_active Withdrawn
- 1979-10-15 FR FR7925600A patent/FR2439375B1/en not_active Expired
- 1979-10-16 ES ES485077A patent/ES485077A0/en active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2135861A (en) * | 1935-08-07 | 1938-11-08 | Colonial Broach Co | Pull broaching machine |
US2751229A (en) * | 1953-11-16 | 1956-06-19 | Arthur B Schultz | Releasable gripper for holding an article suspended |
FR1377413A (en) * | 1963-09-13 | 1964-11-06 | Creusot Forges Ateliers | Expansion device |
US3791011A (en) * | 1972-04-24 | 1974-02-12 | J Keys | Tube pulling device |
US3835520A (en) * | 1973-09-10 | 1974-09-17 | Harris R | Tube pulling apparatus |
US4006619A (en) * | 1975-08-07 | 1977-02-08 | James Hilbert Anderson | Tube expander utilizing hydraulically actuated pistons |
DE2641950A1 (en) * | 1975-09-18 | 1977-03-24 | Ici Ltd | Sealing of joint between tube and header plate - has deformable bush exppppanding tube againsssst nylon insert(BE170377) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2550117A1 (en) * | 1983-08-02 | 1985-02-08 | Arbel Industrie | Device for extracting rings and particularly large expansible plugs |
Also Published As
Publication number | Publication date |
---|---|
DE2940020A1 (en) | 1980-04-30 |
ES8102861A1 (en) | 1981-02-16 |
ES485077A0 (en) | 1981-02-16 |
FR2439375B1 (en) | 1986-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licences | ||
ST | Notification of lapse |