LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
Heavy-Duty Battery-Powered Electric Drill: Riley & Elligson, 1965
Robert H. Riley Jr. and Daniel M. Elligson of Black & Decker patented a cordless drill in 1965, US 3,213,305, with about the torque of a corded half-inch drill, for contractors and line workers. A permanent-magnet DC motor drives the chuck through a two-speed gearbox. Two hollow side handles each hold a slide-out pack of rechargeable nickel-cadmium or silver-cadmium cells, wired in series with the motor and a trigger switch. Their working model had 18 silver-cadmium cells, about 25 volts in all, and gave 550 rpm in high and 225 rpm with 28 foot-pounds of torque in low. The low voltage made it safe in ordinarily hazardous conditions, such as boat maintenance and repair.
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Factory process
Leiðbeiningar
1
1
Field case and motor
Field case and motor
Retain the field assembly, two permanent-magnet tubular segments glued inside a concentric sleeve, in the field case. Fit the brushholders in two bosses at the rear, with silver-graphite brushes riding on the commutator of the wound laminated armature. The working model's armature has 16 slots, each with 10 turns of No. 18 wire.
Efni fyrir þetta skref:
Statorhús borvélar1 stykki
Stator með varanlegum seglum1 stykki
Vafinn lagskiptur snúður með straumvenda1 stykki
Silfur-grafítkol og kolahaldarar1 stykkiNauðsynleg verkfæri:
Skrúfjárnasett2
2
Gear case
Gear case
Secure the gear case cover ahead of the field case and the gear case ahead of that. The armature pinion drives an intermediate gear and shaft carrying two pinions; a gear cluster slides on the splined output spindle, and a shift lever turning an eccentric shaft through about 180 degrees moves it to mesh one pinion or the other, for high or low speed. Fit the chuck on the spindle.
Efni fyrir þetta skref:
Gírkassalok borvélar1 stykki
Gírkassi borvélar1 stykki
Tveggja hraða gírkerfi borvélar1 stykki
Borpatróna1 stykkiNauðsynleg verkfæri:
Skrúfjárnasett3
3
Battery handles
Battery handles
Screw a hollow handle to each side of the field case, in line with each other and across the drill's axis. Slide a battery pack into each from its open end and close it with a quick-release cover held by a locking spring, with a leaf spring pressing the pack onto the contacts. Fit the end handle at the rear.
Efni fyrir þetta skref:
Holt rafhlöðuhandfang2 stykki
Útdraganleg hleðslurafhlaða2 stykki
Hraðlosandi handfangslok2 stykki
Afturhandfang1 stykkiNauðsynleg verkfæri:
Skrúfjárnasett4
4
Contacts and trigger
Contacts and trigger
Secure an insulated block with leaf-spring contacts at the top and bottom of the field case to meet each pack's terminals, and wire the packs, the switch contacts and the brushes in series. Pivot the spring-loaded trigger on the gear case cover so its contact bridges the two switch buttons; a sliding pin locks it on or off.
Efni fyrir þetta skref:
Fjaðurblaðstengi á einangrunarkubbi2 stykki
Veltigikkrofi með læsingu1 stykkiNauðsynleg verkfæri:
Vírstrípari
KombitöngSkrúfjárnasettEfni
14- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- Staðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 2 stykkiStaðgengill
- 2 stykkiStaðgengill
- 2 stykkiStaðgengill
- 1 stykkiStaðgengill
- Staðgengill
- 1 stykkiStaðgengill
Þessi teikning býr til
Tengd Blueprint
Þessi blueprint deila þekkingu — tækni, efni eða meginreglur
CC0 opinbert ríki
Þessi teikning er gefin út undir CC0. Þér er frjálst að afrita, breyta, dreifa og nota þetta verk í hvaða tilgangi sem er, án þess að biðja um leyfi.
Studdu smiðinn með því að kaupa vörur í gegnum teikningu hans þar sem hann fær þóknun smiða sem seljendur ákvarða, eða búðu til nýja endurskoðun á þessari teikningu og tengdu hana sem tengingu í þinni eigin teikningu til að deila tekjum.