WO2015048700A2 - Instruments motorisés terminés par un outil - Google Patents

Instruments motorisés terminés par un outil Download PDF

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Publication number
WO2015048700A2
WO2015048700A2 PCT/US2014/058153 US2014058153W WO2015048700A2 WO 2015048700 A2 WO2015048700 A2 WO 2015048700A2 US 2014058153 W US2014058153 W US 2014058153W WO 2015048700 A2 WO2015048700 A2 WO 2015048700A2
Authority
WO
WIPO (PCT)
Prior art keywords
retainer housing
shaft
motor
tool head
tool
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.)
Ceased
Application number
PCT/US2014/058153
Other languages
English (en)
Other versions
WO2015048700A3 (fr
Inventor
Brian James MORMON
Robert H. MCCOLLUM
Nathan Andrew COLLIER
Austin Michael FLANARY
Thomas Spiros VOUTSAS
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.)
HOLDMEYER Seth Daniel
Original Assignee
HOLDMEYER Seth Daniel
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 HOLDMEYER Seth Daniel filed Critical HOLDMEYER Seth Daniel
Publication of WO2015048700A2 publication Critical patent/WO2015048700A2/fr
Publication of WO2015048700A3 publication Critical patent/WO2015048700A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/005—Repairing methods or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/043—Accessories for spindle drives
    • B23Q5/045—Angle drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/005—Auxiliary devices used in connection with portable grinding machines, e.g. holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0038—Other grinding machines or devices with the grinding tool mounted at the end of a set of bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports

Definitions

  • a conventional turbine blade inspection process involves a visual inspection of each turbine blade through a borescope or endoscope passed through observation ports or holes in the engine casing.
  • endoscope may be interpreted to include rigid borescopes, flexible fiber optic borescopes and videoscopes or any similar device.
  • the borescope a fiber optic cable connected to a light source, is inserted through borescope openings within the engine case and into the engine, for visual inspection of the turbine blades and other internal engine components.
  • grinding or blending instruments have been adapted for insertion through the borescope openings in the engine case, allowing for repair of the damaged turbine blades without disassembly of the engine.
  • the instrument includes a motor driven tool at the insertable end of the instrument that is operable to grind or blend the damaged portion of the turbine blade.
  • Exemplary blending tools are described in U.S. Patent Nos. 5,102,221; 5,475,485; 5,644,394; 5,803,680; and 7,112,118, the entire disclosures of each of which are incorporated herein by reference.
  • a motor-driven instrument includes a shaft having a proximal end and a distal end, a retainer housing coupled to the distal end of the shaft, a rotary motor, and a tool head.
  • the rotary motor including a motor body assembled with the retainer housing and an output shaft extending from a distal end of the motor body.
  • the tool head having a tubular proximal end secured to the retainer housing and receiving at least a portion of the motor body therein, and a distal end connected with the output shaft for rotation therewith.
  • a tool-ended instrument in another exemplary embodiment, includes a shaft having a proximal end and a distal end, and a retainer housing coupled to the distal end of the shaft. At least one bearing member extends radially outward through an opening in the retainer housing. A wedge block is disposed within the retainer housing and is biased toward a first position in which the wedge block forces the at least one bearing member radially outward through the opening. A tool head is axially secured to the retainer housing at a tubular proximal end having an inner peripheral groove that receives the at least one bearing member.
  • the retainer housing includes a release aperture oriented to intersect with the wedge block, such that insertion of a tool into the release aperture moves the wedge block from the first position to a second position in which the at least one bearing member is permitted to retract into the retainer housing.
  • a tool-ended instrument in still another exemplary embodiment, includes a shaft having a proximal end and a distal end, a tool head pivotably coupled to the distal end of the shaft, and a slide member disposed within the shaft and coupled to the tool head.
  • the slide member is axially slideable within the shaft for pivoting movement of the tool head.
  • a threaded collar is assembled with the shaft and in threaded engagement with a threaded portion of the slide member. User rotation of the threaded collar axially slides the slide member for pivoting movement of the tool head.
  • a method for detaching a tool head from an articulating tool-ended instrument including a shaft having a proximal end and a distal end, a retainer housing pivotably coupled to the distal end of the shaft at a joint portion, and a tool head secured to the retainer housing by at least one bearing member extending radially outward of an opening in the retainer housing.
  • a release tool is provided with a tool body defining a first bore, a second bore, and a neck portion separating the first and second bores, a button disposed on an outer surface of tool body and including an inward projection intersecting the neck portion.
  • the release tool is assembled with the instrument such that at least a portion of the tool head is received in the first bore, at least a portion of the shaft is received in the second bore, and the joint portion is received in the neck portion, with the button projection aligning with a release aperture in the retainer housing.
  • the button is depressed, such that the button projection extends within the release aperture to engage a bearing release mechanism, thereby permitting the at least one bearing member to disengage from the tool head for detachment of the tool head from the retainer housing.
  • Figure 1 is a perspective view of a motor-driven, tool ended instrument, in accordance with an exemplary embodiment of the present application
  • Figure 2 is an enlarged perspective view of the tool mounted portion of the instrument of Figure 1, shown with the tool head in phantom to illustrate additional features of the instrument;
  • Figure 3 is a cross-sectional view of the tool mounted portion of the instrument of Figure 1;
  • Figure 4 is an exploded view of the tool mounted portion of the instrument of Figure i ;
  • Figure 5 is a perspective view of a tool head release tool, in accordance with an exemplary embodiment of the present application.
  • Figure 6A is a perspective view of the tool head release tool of Figure 5, shown partially assembled with the instrument of Figure 1 ;
  • Figure 6B is a perspective view of the tool head release tool of Figure 5, shown assembled with the instrument of Figure 1;
  • Figure 7A is a partial cross-sectional view of the tool mounted portion of the instrument of Figure 1, shown assembled with the tool head release tool of Figure 5, with the release button in the neutral position;
  • Figure 7B is a partial cross-sectional view of the tool mounted portion of the instrument of Figure 1, shown assembled with the tool head release tool of Figure 5, with the release button in the depressed position;
  • Figure 7C is a partial cross-sectional view of the tool mounted portion of the instrument of Figure 1, shown assembled with the tool head release tool of Figure 5, with the release button in the depressed position and the tool head released from the retainer housing;
  • Figure 8A is a perspective view of a tool head, in accordance with an exemplary embodiment of the present application.
  • Figure 8B is a perspective view of another tool head, in accordance with another exemplary embodiment of the present application.
  • Figure 8C is a perspective view of another tool head, in accordance with another exemplary embodiment of the present application.
  • Figure 9 is an enlarged perspective view of the handle assembly of the instrument of Figure 1;
  • Figure 10 is a cross-sectional view of the handle assembly of the instrument of Figure i ;
  • Figure 1 1 is an exploded perspective view of the handle assembly of the instrument of Figure 1;
  • Figure 12 is a perspective view of another handle assembly for another tool ended instrument, in accordance with another exemplary embodiment of the present application.
  • Figure 13 is a cross-sectional view of the handle assembly of Figure 12.
  • Figure 14 is an exploded perspective view of the handle assembly of Figure 12.
  • an instrument may be provided with a rotary tool head attached to a distal end of the instrument.
  • the tool head may be attached to a drive system using a variety of arrangements.
  • a motor e.g., a DC brushless motor, such as, for example, a Maxon EC-style motor
  • the motor and tool head may be provided with a drive connection for transmitting a rotary output from the motor to the tool head, and a bearing connection for axially securing the tool head to the motor and guiding the rotary motion of the tool head.
  • Figures 1-4 and 7A-11 illustrate an exemplary instrument 100 having a shaft 110 with a proximal end 1 11 and a distal end 112, and a tool retaining portion or retainer housing 120 coupled to the distal end 1 12 of the shaft 1 10.
  • a tool head 130 is releasably or detachably coupled to the retainer housing 120.
  • a motor 140 ( Figures 2-4) is assembled with the retainer housing 120 and is coupled with the tool head 130 for powered rotation of the tool head.
  • the distal end of the instrument includes a retainer housing having one or more tool retaining bearing members (e.g., balls, pins, rings or other such components) that are biased outward into an inner peripheral groove in a proximal tubular end of the tool head to secure the tool head to the instrument.
  • the grooved portion of the tool head is permitted to ride on the bearings to permit rotation of the tool head about the retainer housing of the instrument.
  • the retainer housing may include a bearing release mechanism that is operable (e.g., using a tool or other user manipulation of the retainer housing) to retract of the bearings from the groove housing, thereby disengaging the tool head from the distal end of the instrument.
  • the retainer housing 120 defines an internal chamber 123 including a set of three ball bearings 151 retained within an insert 152 disposed in the chamber 123.
  • the ball bearings 151 are forced outward through openings 124 in the retainer housing 120 by a spring biased wedge block 153.
  • the openings 124 are sized to prevent complete passage of the ball bearings 151 through the openings, to secure the ball bearings within the retainer housing 120.
  • the protruding portions of the ball bearings 151 are received in an inner peripheral groove 135 in a cylindrical or tubular wall 134 of the tool head 130 to axially secure the tool head to the retainer housing 120 while permitting rotation of the tool head 130 about the retainer housing 120.
  • One or more biasing members e.g., Belleville washer springs 1544 may provide sufficient biasing force to the wedge block 153 to prevent retraction of the ball bearings 151 due to pulling forces applied to the tool head 130.
  • the ball bearings 151 may include a hard, wear resistant material (e.g., ceramic, silicone nitride), and the grooved portion 135 of the tool head 130 may include a low friction, thermal resistant coating (e.g., graphite, chrome, oil) to facilitate smooth, high speed rotation of the tool head 130.
  • a hard, wear resistant material e.g., ceramic, silicone nitride
  • a low friction, thermal resistant coating e.g., graphite, chrome, oil
  • the wedge block 153 may be forced against the biasing members 154, thereby permitting the ball bearings 151 to retract from the tool head groove 135 for axial separation of the tool head 130 from the retainer housing 120.
  • the tool head groove may be shaped such that a sufficient axial pulling force applied to the tool head transmits force to the wedge block (through the ball bearings) to permit separation and removal of the tool head.
  • the wedge block (or other such release mechanism component) is accessible by the user (e.g., through an access opening) for forced retraction and
  • the retainer housing 120 includes an aperture 125 positioned to intersect with a chamfered stem 156 of the wedge block 153.
  • a tool may be inserted through the aperture 125 and against the chamfered stem 156 to move the wedge block 153 against the Belleville springs 154 for release of the ball bearings 151 from the tool head groove 135.
  • FIGS 5-7C illustrate an exemplary release tool 200 having a shaft receiving body 210 and a tool head releasing button 220 (see Figure 6B) assembled with the body 210 and disposed on an outer surface of the tool body 210.
  • the exemplary body 210 includes hinged body halves 21 1, 212 (although a different number of body components may be utilized) that together define a first cylindrical bore 214 for receiving at least a portion of the shaft 1 10 and a second cylindrical bore 216 for receiving at least a portion of the retainer housing 120.
  • the first and second cylindrical bores 214, 216 are separated by a neck portion 215 that receives a narrower joint portion 105 between the retainer housing 120 and the shaft 1 10 to orient the instrument 100 for alignment of the retainer housing aperture 125 with the button 220 (shown carried by the first body half 211).
  • the release tool body 210 when the release tool body 210 is assembled over the instrument 100 ( Figures 6A and 6B), the tool body 210 holds the retainer housing 120 in rigid alignment with the shaft 110, and an internal projection 222 of the button 220 extends into the retainer housing aperture 125.
  • the button extension 222 engages the chamfered stem 156 of the wedge block 153, moving the wedge block against the Belleville springs 154 to permit retraction of the ball bearings 151 from the tool head groove 135, thereby allowing the tool head 130 to be separated from the retainer housing 120.
  • a motor is assembled with a distal end of the retainer housing and is sized such that a tubular tool head fits over the motor for bearing engagement with the retainer housing.
  • a tool head and retainer housing may be sized to accommodate a wider range of motor sizes, including, for example, 4 mm, 6 mm, 12 mm. 18 bb, and 25 mm DC brushless motors.
  • a proximal end 141 of the motor housing 143 of a DC brushless motor 140 is received in an open distal end 122 of the retainer housing 120, and may be secured with the retainer housing 120, for example, by an epoxy, adhesive, retaining clip, or other such fastening arrangement.
  • the proximal end 141 of the motor housing 143 may define a distal end of the retainer housing chamber 123, against which the Belleville springs 154 are compressed.
  • the distal end 142 of the motor 140 includes an output shaft 144 for driving connection with a distal end 132 of the tool head 130.
  • a hex member 145 is affixed to the output shaft 144 and is received in a corresponding, complementary shaped socket 136 in the distal end 132 of the tool head 130.
  • FIG. 8A, 8B, and 8C illustrate examples of tool heads 130a, 130b, 130c including fluted cutting edges 137a, 137b, 137c, for example, for blending or grinding damaged turbine blade edges.
  • the fluted portion of the tool head may (but need not) extend to the proximal tubular end of the tool head, such that the grooved portion does not extend around an entire 360° circumference, but extends around a sufficient portion of the tool head to retain the tool head on the retainer housing (e.g., by retaining at least two ball bearings 151 in the tool head groove 135a, 135b, 135c).
  • An abrasive material e.g., cubic boron nitride
  • a tool head blank may be provided for attaching a variety of tool ends (e.g., by welding) or for machining a desired tool end into the tool head blank.
  • An end mounted motor and tool head arrangement may be utilized with many different types of instruments.
  • a motor and tool head arrangement are provided at a distal end of a narrow, elongated shaft instrument, sized for insertion into an internal cavity, through an access bore or other opening.
  • the instrument may be provided with an insertable portion having a maximum diameter of approximately 0.2 - 0.6 inches (e.g., 0.306 inches) and a minimum length of approximately 6 - 36 inches.
  • the instrument may be sized for insertion through a 0.307 inch diameter bore of a turbine engine, with an insertable length of approximately 4 - 42 inches for blending or grinding operations on a damaged turbine blade.
  • a motor and tool head arrangement such as the exemplary embodiments described above, may be assembled with many different types of insertable shafts, including rigid, flexible, and pivotable or jointed shafts.
  • a motor and tool head arrangement may be pivotably connected to a distal end of a rigid instrument shaft for articulating or pivoting movement of the tool head about the shaft.
  • the instrument shaft 1 10 includes a main shaft portion 114 assembled at a proximal end to a proximal shaft housing 1 13 and assembled at a distal end to a distal shaft housing 115.
  • the main shaft portion includes one or more of carbon fiber, stainless steel, aluminum, and fiberglass, and the distal and proximal shaft housings include one or more of titanium, steel aluminum, and plastic.
  • the main shaft portion 114 may be affixed to the shaft housings 113, 115 for example, by press fit engagement and/or an epoxy.
  • the proximal end 121 of the retainer housing 120 is pivotably connected to the distal shaft housing 1 15 (e.g., by a pivot pin 116), for pivoting or articulating movement of the retainer housing 120, motor 140, and tool head 130 about the shaft 110.
  • the pivotable connection between the retainer housing 120 and the distal shaft housing 1 15 may include any suitable range of pivot angles, including, for example, from approximately 0° (aligned or collinear with the shaft 110) to up to 150°, or from up to approximately 150° in a first pivoting direction to up to approximately 150° in a second, opposite pivoting direction.
  • the retainer housing 120 is pivotable from approximately 0° to approximately 130° (i.e., about a 50° angle with the shaft).
  • the instrument may be provided with an articulation control mechanism operable to selectively adjust the articulated position or angle of the tool head with respect to a shaft in response to user manipulation of an articulation control interface (e.g., dial, knob, switch, button, etc.).
  • the articulation control interface may be spaced apart from the articulating tool head, such that the articulation control interface is still operable when the tool head has been inserted into a remote cavity.
  • the instrument 100 includes a link 161 having a first end pivotably connected to the retainer housing 120 (e.g., by a first pin 162) and a second end pivotably connected to a distal end 166 of a slide member 163 (e.g., by a second pin 164).
  • the slide member 163 is slideable within the shaft 110, causing the link 161 to apply a pulling or pushing force to the retainer housing 120 at the first pin 162 for pivoting movement of the retainer housing 120.
  • a handle assembly 170 is provided at the proximal end 11 1 of the shaft 110, with a knob 171 that is rotatable in a first direction (e.g., counterclockwise) to axially slide the slide member 163 in an extending direction, and is rotatable in a second direction (e.g., clockwise) to axially slide the slide member 163 in a retracting direction.
  • the exemplary knob 171 is provided at the base of a handle housing 172.
  • the handle housing 172 may be surrounded by a soft sleeve 173 (e.g., rubber, polyurethane) for gripping by the user.
  • the knob 171 coupled to a threaded collar 174 integral with the knob 171, which engages a threaded proximal end 165 of the slide member 163.
  • the handle assembly 170 further includes a cap member 175 that extends through the knob 171 for attachment to the handle housing 172 (e.g., by screws or other such fasteners).
  • a flanged proximal end 175e of the cap member 175 retains the knob 171 on the handle assembly 170.
  • the distal end 177 of the cap member 175 aligns with the threaded proximal end 165 of the slide member 163 to guide sliding movement and to prevent rotation of the threaded proximal end 165.
  • a first direction e.g., counterclockwise
  • rotation of the threaded portion of the collar 174 with respect to the threaded proximal end 165 of the slide member 163 causes the slide member to slide in an extending direction to pivot the retainer housing 120 in a first direction (e.g., toward a lateral position with respect to the shaft).
  • the knob 171 may be freely rotatable for pivoting adjustment of the tool head 130.
  • the knob may be configured to normally be in a non-operational position, for example, to prevent inadvertent articulation of the tool head.
  • the knob 171a and the threaded collar 174a are separate components rotationally connected by a hex portion 178a disposed on an outer surface of the collar 174a, and a complementary hex- shaped opening 179a in the knob 171a (see Figure 14).
  • the knob 171a is spring-biased (e.g., by compression spring 181a) away from interlocking alignment of the hex-shaped opening 179a with the hex portion 178a, such that rotation of the knob in this normal biased position does not rotate the threaded collar 174a.
  • the knob 171a is pulled against the spring 181a toward the proximal end of the handle assembly 170a for mating alignment of the hex portion 178a and the hex-shaped opening 179a.
  • the knob 171a is then rotated to rotate the collar 174a and slide the slide member.
  • Colored bands 182a, 186a may be provided on the collar 174a and handle housing 172a, respectively to provide visible indication that the knob 171 a is in an inoperable or operable position.
  • wiring may extend from the motor through one or more passages in the instrument 100 and out of a proximal (e.g., non- insertable) portion of the instrument.
  • motor wiring 146 from the motor 140 extends from the chamber 123 of the retainer housing 120, past the Belleville springs 154, past cutout portions 153c, 152c of the wedge block 153 and insert 152 and through a passage 126 in the proximal end 121 of the retainer housing 120.
  • the motor wiring 146 extends past the link 161 into an open distal end 1 12 of the distal shaft housing 115 and into a passage 167 in the distal end 166 of the slide member 163.
  • the motor wiring 146 extends through the main shaft portion 1 14 alongside a central stem portion 168 of the slide member 163 and through a passage 117 in the proximal shaft housing 1 13 and into a cavity 169 in the handle assembly for connection with a breakout board 118 assembled with the proximal shaft housing 113.
  • External wiring 119 connected with the breakout board 1 18 interfaces with a connector 176 that is assembled with the cap member 175 (e.g., by a threaded arrangement), for example, to provide for a detachable cable connection to the instrument 100 for connection with an external power source.
  • the external wiring may extend outward of the instrument (e.g., through the cap member) for connection with an external power source.
  • a grommet 183a and grommet retention cap 184a may be secured to the cap member 175a (e.g., by fasteners 185a) to maintain the external wiring (not shown) in a taut (but not over-strained) condition through the handle assembly 170a.
  • the instrument 100 may be provided with a wire retraction mechanism that retracts the motor wiring back into the instrument shaft.
  • the distal end 166 of the slide member 163 includes a spring-loaded plunger 191 that is attached to the motor wiring 146, for example, by means of an adhesive, solder, or other such attachment.
  • the plunger is slideable along a guide rod 192 assembled with the slide member distal end 166, and is biased toward a retracted position by a tension spring 193, permitting extension of the plunger 191 and motor wiring 146 when the retainer housing is pivoted to a lateral position, and to automatically return the plunger 191 and motor wiring 146 to the retracted position when the retainer housing is returned to the shaft aligned position.
  • an insertable instrument including one or more of the features described above may include an endoscope or other videographic device assembled with the instrument for visual inspection of internal surfaces to be blended or otherwise modified by the tool.
  • an instrument e.g., one of the exemplary instruments described above
  • a separate endoscopic device for example, with the tool ended instrument inserted into a cavity through a first port and the endoscope inserted into the cavity through a second port.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Surgical Instruments (AREA)

Abstract

La présente invention concerne un instrument motorisé qui comprend un arbre possédant une extrémité proximale et une extrémité distale, un boîtier de retenue accouplé à l'extrémité distale de l'arbre, un moteur rotatif et une tête d'outil. Le moteur rotatif comprend un corps de moteur assemblé avec le logement de retenue et un arbre de sortie s'étendant depuis une extrémité distale du corps de moteur. La tête d'outil comprend une extrémité proximale tubulaire fixée au logement de retenue et accueillant au moins une partie du corps de moteur en son sein, et une extrémité distale raccordée à l'arbre de sortie pour tourner avec celui-ci.
PCT/US2014/058153 2013-09-30 2014-09-30 Instruments motorisés terminés par un outil Ceased WO2015048700A2 (fr)

Applications Claiming Priority (2)

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US201361884266P 2013-09-30 2013-09-30
US61/884,266 2013-09-30

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WO2015048700A2 true WO2015048700A2 (fr) 2015-04-02
WO2015048700A3 WO2015048700A3 (fr) 2015-10-29

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EP3208432A1 (fr) * 2016-02-22 2017-08-23 General Electric Company Système et procédé de réparation d'un matériau abradable
EP3680063A1 (fr) * 2019-01-14 2020-07-15 Dynabrade, Inc. Tête réglable à ressort
EP4091774A1 (fr) * 2021-05-18 2022-11-23 Rolls-Royce plc Mécanisme
US11897131B2 (en) 2021-05-18 2024-02-13 Rolls-Royce Plc Actuator
EP4353947A1 (fr) * 2022-10-13 2024-04-17 Richard Wolf GmbH Système d'usinage de surface in situ d'une aube de moteur
CN118241777A (zh) * 2024-05-20 2024-06-25 成都建工第六建筑工程有限公司 一种装配式建筑墙体结构和加固结构

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EP3208432A1 (fr) * 2016-02-22 2017-08-23 General Electric Company Système et procédé de réparation d'un matériau abradable
US10213883B2 (en) 2016-02-22 2019-02-26 General Electric Company System and method for in situ repair of gas turbine engine casing clearance
EP3680063A1 (fr) * 2019-01-14 2020-07-15 Dynabrade, Inc. Tête réglable à ressort
CN111434467A (zh) * 2019-01-14 2020-07-21 戴纳布莱德公司 弹簧加载的可调节头部
US11235454B2 (en) 2019-01-14 2022-02-01 Dynabrade, Inc. Spring loaded adjustable head
TWI797412B (zh) * 2019-01-14 2023-04-01 美商迪納布萊德股份有限公司 用於角鑽機或刻模機之可調式機構，及角旋轉裝置
EP4091774A1 (fr) * 2021-05-18 2022-11-23 Rolls-Royce plc Mécanisme
JP2022177807A (ja) * 2021-05-18 2022-12-01 ロールス・ロイス・ピーエルシー 機構
US11897131B2 (en) 2021-05-18 2024-02-13 Rolls-Royce Plc Actuator
US12138788B2 (en) 2021-05-18 2024-11-12 Rolls-Royce Plc Mechanism
EP4353947A1 (fr) * 2022-10-13 2024-04-17 Richard Wolf GmbH Système d'usinage de surface in situ d'une aube de moteur
CN118241777A (zh) * 2024-05-20 2024-06-25 成都建工第六建筑工程有限公司 一种装配式建筑墙体结构和加固结构

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