SINING
BEAUTY AT WELLNESS
CRAFTS
KULTURA AT KASAYSAYAN
LIBANGAN
KAPALIGIRAN
PAGKAIN AT INUMIN
REVERSE ENGINEERING
AGHAM
ISPORTS
TEKNOLOHIYA
MGA WEARABLE
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.
Abantado
Factory process
Mga Tagubilin
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.
Mga materyales para sa hakbang na ito:
Kaha ng field ng barena1 piraso
Permanent-magnet na field assembly1 piraso
Nakaikid na laminated armature na may commutator1 piraso
Silver-graphite na brush at lalagyan1 pirasoMga kailangang kasangkapan:
Set ng mga distornilyador2
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.
Mga materyales para sa hakbang na ito:
Takip ng kaha ng gear ng barena1 piraso
Kaha ng gear ng barena1 piraso
Two-speed na transmisyon ng barena1 piraso
Chuck ng barena1 pirasoMga kailangang kasangkapan:
Set ng mga distornilyador3
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.
Mga materyales para sa hakbang na ito:
Hungkag na hawakan ng baterya2 piraso
Slide-out na rechargeable na battery pack2 piraso
Quick-release na takip ng hawakan2 piraso
Hawakang panghuli1 pirasoMga kailangang kasangkapan:
Set ng mga distornilyador4
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.
Mga materyales para sa hakbang na ito:
Leaf-spring na kontak sa insulated na bloke2 piraso
Pivoted na trigger switch na may lock1 pirasoMga kailangang kasangkapan:
Pambalat ng kawad
Plais na KombinasyonSet ng mga distornilyadorMga Materyales
14- 1 pirasoPlaceholder
- Placeholder
- Placeholder
- Placeholder
- 1 pirasoPlaceholder
- 1 pirasoPlaceholder
- Placeholder
- 1 pirasoPlaceholder
- 2 pirasoPlaceholder
- Placeholder
- Placeholder
- 1 pirasoPlaceholder
- Placeholder
- Placeholder
Mga Kinakailangang Kasangkapan
3- Placeholder
- Placeholder
- Placeholder
Ang blueprint na ito ay gumagawa ng
Kaugnay na Blueprint
Ang mga blueprint na ito ay nagbabahagi ng kaalaman — mga teknik, materyales, o prinsipyo
CC0 Pampublikong Domain
Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.
Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.