EP1354154A2 - Device for tightly closing boreholes that are subjected to the action of pressure medium - Google Patents
Device for tightly closing boreholes that are subjected to the action of pressure mediumInfo
- Publication number
- EP1354154A2 EP1354154A2 EP02701187A EP02701187A EP1354154A2 EP 1354154 A2 EP1354154 A2 EP 1354154A2 EP 02701187 A EP02701187 A EP 02701187A EP 02701187 A EP02701187 A EP 02701187A EP 1354154 A2 EP1354154 A2 EP 1354154A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- stopper
- plug
- bore
- diameter
- 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
- 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
- B25B27/28—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 positioning or withdrawing resilient bushings or the like
-
- 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
- B25B27/026—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 fluid driven
Definitions
- Expansion elements are also known which are introduced into the opening to be sealed and brought to expand in the opening, thereby achieving a tight seal of the opening.
- Expansion elements of the type mentioned above consist of a sleeve and a pin guided in the sleeve.
- the sleeve has the shape of a cylinder and is provided with groove-like incisions on the entire lateral surface, so that a serrated surface results in the cut.
- the inner surface of the sleeve is flat and is provided with a circumferential bead on the end face, which faces away from the head of the pin.
- the pin consists of a shaft and a head which consists of an expanding cone, the narrow region of the cone corresponding to the inside diameter of the sleeve. in the
- the conical head In the area of the largest diameter, the conical head is ended by a circumferential bead.
- the length of the sleeve to the bead corresponds to the length of the head to the bead.
- the sleeve In which the head of the pin is in the starting position, is inserted into the bore to be sealed in a first step.
- the outer diameter of the sleeve corresponds approximately to the diameter of the bore (0 - 0.12 mm larger).
- the conical head is displaced in the direction of the bead of the sleeve by the action of a tensile force on the shaft, as a result of which the supported sleeve expands and, with its grooved surface, lies against the bore.
- the head is moved until it rests against the bead of the sleeve or until the bead of the head rests against the sleeve. After application to the beads, there is an increase in force, which results in the shaft being separated from the head at the predetermined breaking point in front of the head.
- This sealing plug system is very well suited to achieve a tight seal of cavities that are pressurized with pressure medium.
- the high manufacturing outlay and the high precision with which both the sleeve and the pin and also the bore to be sealed are to be produced are disadvantageous. This is reflected in the price of the sealing plug- System. Therefore, the use of this system is relatively expensive and its use in mass production has a significant impact on the unit price.
- this system is only offered for closures with a bore diameter of 4 mm or more. For smaller diameters, the system obviously cannot be manufactured with reasonable effort.
- plastic deformation e.g.
- a plastically deformable plug made of aluminum By means of a plastically deformable plug made of aluminum, it is possible to seal a hole in a cavity that is pressurized with pressure medium.
- the diameter of the plug is larger than the diameter of the bore, the generation of the plastic deformation resulting in the seal cannot be achieved without loading the workpiece, which leads to intolerable deformations (bulging or buckling), particularly in the case of thin-walled and long workpieces may adversely affect their usability.
- the invention is based on the object of proposing a structurally and production-technically simple solution for sealing pressure-loaded bores with which provides a secure seal between the bore and the plug even under high internal pressure.
- Figure 1 shows an inventive device in the
- Figure 2 shows an inventive device in the
- FIG. 1 shows a workpiece 1 which has a bore 2, the diameter of which tapers in steps, the region 2b having the larger diameter compared to the region 2a.
- a plug 3 is inserted, which can consist of a plastically deformable material such as aluminum.
- the diameter of the plug 3 is approximately 10% smaller than the diameter of the bore 2 in the region 2a and approximately 1.5-4.5% smaller than the diameter of the bore 2 in the region 2b.
- the diameter of the firing pin 4 on its side facing the plug 3 is approximately 80-90%, preferably 85%, of the diameter of the plug 3.
- the firing pin 4 is in one element 5 slidably guided.
- the firing pin 4 In the starting position, the firing pin 4 is pressed with the collar 7 against a stop 9 by means of a spring 6, which is arranged between a collar 7 and a bearing 8, as a result of which the distance x between the firing pin 4 and the plug 3 is created.
- the firing pin 4 projects partially through the stop 9.
- a stamp 10 In front of the end of the firing pin 4 projecting through the stop 9 there is a stamp 10 at a distance y which forms the end of a piston rod 11, at the other end of which a piston 13 guided in a cylinder 12 is arranged.
- the cylinder 12 is suddenly supplied with compressed air via a feed line 20.
- the position of the stamp 10 In the starting position, the position of the stamp 10 is fixed by a stop 19.
- the cylinder 12 is fixedly connected to a slide 14, which in turn is arranged on a guide 15. In the starting position, the carriage 14 is pressed against a stop 17 by means of a spring 16. The tension of the spring 16 can be changed by means of an adjusting nut 18.
- Figure 2 shows a device according to the invention in the end position in section.
- the device according to the invention functions as follows:
- the size of the amount of kickback energy which is absorbed by the spring and is thus not available for the deformation of the plug 3 is determined by the tension of the spring 16 which can be adjusted via the adjusting nut 18. With a low spring tension, the proportion of energy that does not act on the plug 3 is greater than with a high spring tension. In this way, the impact work acting on the stopper 3 is finely metered.
- the arrangement of the components of the device according to the invention ensures that the kinetic energy of the piston-piston rod-punch system acts suddenly on the stopper 3, the impact effect being finely metered.
- the impact on the plug 3 causes the plug 3 to flow partially into the area 2a of the bore 2 and to lie intensely against the wall in the area 2a of the bore 2.
- closures made in this way can withstand well higher pressures than closures which are produced by slowly pushing the plugs into the bore.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Actuator (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Fluid-Damping Devices (AREA)
- Tents Or Canopies (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10102452 | 2001-01-15 | ||
DE10102452A DE10102452C2 (en) | 2001-01-15 | 2001-01-15 | Device for sealing bores under pressure |
PCT/DE2002/000087 WO2002055911A2 (en) | 2001-01-15 | 2002-01-11 | Device for tightly closing boreholes that are subjected to the action of pressure medium |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1354154A2 true EP1354154A2 (en) | 2003-10-22 |
EP1354154B1 EP1354154B1 (en) | 2004-08-25 |
Family
ID=7671172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02701187A Expired - Lifetime EP1354154B1 (en) | 2001-01-15 | 2002-01-11 | Device for tightly closing boreholes that are subjected to the action of pressure medium |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1354154B1 (en) |
AT (1) | ATE274663T1 (en) |
AU (1) | AU2002234500A1 (en) |
DE (3) | DE10102452C2 (en) |
WO (1) | WO2002055911A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104149068A (en) * | 2014-07-18 | 2014-11-19 | 江苏中烟工业有限责任公司 | Pneumatic mounting tool for mounting seal ring of impregnator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108999973A (en) * | 2018-10-11 | 2018-12-14 | 浙江大工阀门驱动有限公司 | A kind of sealing device of threaded connection |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691818A (en) * | 1952-03-31 | 1954-10-19 | Jr Dean M Rockwell | Method and apparatus for use in making valve protector caps for compressed gas cylinders |
GB794375A (en) * | 1955-04-14 | 1958-04-30 | Christian Schondelmaier | Method and apparatus for cold-pressing objects |
JPH01137316A (en) * | 1987-11-25 | 1989-05-30 | Hitachi Ltd | Semiconductor integrated circuit device |
DE3831523A1 (en) * | 1988-09-16 | 1990-03-22 | Koenig Verbindungstech Ag | METHOD FOR SEALING A HOLE |
DE4142153A1 (en) * | 1991-12-20 | 1993-06-24 | Bosch Gmbh Robert | LOCKING FOR PRESSURE-DRIVING BORES OR CHANNELS IN A HOUSING |
DE4211143A1 (en) * | 1992-04-03 | 1993-10-07 | Bosch Gmbh Robert | Press-fitting arrangement for component into recess of workpiece - incorporates strain-gauge transducer whose output signal arrests downward pressure of die on insert and guard ring |
DE4439059A1 (en) * | 1994-11-02 | 1996-05-09 | Teves Gmbh Alfred | Closing device for closing pressure-carrying channels in a housing |
NL1007976C2 (en) * | 1998-01-07 | 1999-07-08 | Metaalgieterij Giesen B V | Method and sealing plug for sealing a core hole in a casting. |
DE19831989C2 (en) * | 1998-07-16 | 2003-10-02 | Abb Patent Gmbh | Assembly tool for pressing and pulling off a pressure ring |
DE19846379A1 (en) * | 1998-10-08 | 2000-04-13 | Bosch Gmbh Robert | Closure element for a stepped bore of a component |
DE19859370C1 (en) * | 1998-12-22 | 2000-02-24 | Umformtechnik Und Kraftfahrzeu | Seal plug for motor vehicle pipe has break off pin to expand plug into pipe bore |
DE19948425B4 (en) * | 1999-05-11 | 2014-08-14 | Continental Teves Ag & Co. Ohg | Closing device for closing holes in a housing |
-
2001
- 2001-01-15 DE DE10102452A patent/DE10102452C2/en not_active Expired - Fee Related
-
2002
- 2002-01-11 DE DE10290088T patent/DE10290088D2/en not_active Expired - Fee Related
- 2002-01-11 AU AU2002234500A patent/AU2002234500A1/en not_active Abandoned
- 2002-01-11 EP EP02701187A patent/EP1354154B1/en not_active Expired - Lifetime
- 2002-01-11 WO PCT/DE2002/000087 patent/WO2002055911A2/en not_active Application Discontinuation
- 2002-01-11 DE DE50200895T patent/DE50200895D1/en not_active Expired - Fee Related
- 2002-01-11 AT AT02701187T patent/ATE274663T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO02055911A2 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104149068A (en) * | 2014-07-18 | 2014-11-19 | 江苏中烟工业有限责任公司 | Pneumatic mounting tool for mounting seal ring of impregnator |
CN104149068B (en) * | 2014-07-18 | 2016-05-18 | 江苏中烟工业有限责任公司 | The pneumatic erecting tools of a kind of infuser sealing ring |
Also Published As
Publication number | Publication date |
---|---|
DE10290088D2 (en) | 2003-12-24 |
DE10102452C2 (en) | 2003-03-13 |
WO2002055911A2 (en) | 2002-07-18 |
DE50200895D1 (en) | 2004-09-30 |
ATE274663T1 (en) | 2004-09-15 |
AU2002234500A1 (en) | 2002-07-24 |
DE10102452A1 (en) | 2002-11-07 |
WO2002055911A3 (en) | 2003-02-20 |
EP1354154B1 (en) | 2004-08-25 |
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