SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Strain-Gauge Load Cell with Floating Piston: Ruge, 1949
Arthur C. Ruge of Cambridge, Massachusetts, one of the two inventors of the bonded wire strain gauge, patented this load weighing cell in 1949, US 2,472,047 (filed 1946). Tanks, bins and scales rest on such cells so the weight of their contents can be read at any time. A floating piston, held in a heavy shell by two diaphragms, passes the load straight down onto a column carrying bonded strain gauges, so tilted, off-centre and twisting loads barely affect the reading. The gauges' change of resistance can be read on a Wheatstone bridge.
Juu
Workshop process
Maagizo
1
1
Base and shell
Base and shell
Weld a rigid, preferably cylindrical shell to a relatively heavy base, or secure it some other way.
Vifaa kwa hatua hii:
Kitako na Kasha la Silinda la Seli ya Mzigo1 kipandeZana zinazohitajika:
Mashine ya kulehemu kwa upinde2
2
Load column and gauges
Load column and gauges
Screw the lower end of the load-sensitive column rigidly to the base; round its upper end to a half-sphere. Bond wire strain gauges to its surface at several points around it, so bending cancels out, and mount gauges of the same type crosswise for temperature compensation. The column may be round, but square, solid or hollow, makes the gauges easier to apply. Its capacity is set by its cross-section and the stiffness of its material.
Vifaa kwa hatua hii:
Nguzo Inayohisi Mzigo1 kipande
Kipimo cha Mkazo cha Waya Iliyobandikwa1 setiZana zinazohitajika:
Seti ya bisibisi3
3
Floating piston
Floating piston
Bore the piston so the column reaches up inside it and its rounded end bears on the end of the bore. Centre the piston in the shell with two annular diaphragms, upper and lower, welded or brazed to piston and shell: widely spaced, they let it move freely up and down but resist side loads and off-centre loads.
Vifaa kwa hatua hii:
Pistoni ya Mzigo Inayoelea1 kipande
Kiwambo cha Mwongozo cha Umbo la Pete2 vipandeZana zinazohitajika:
Kereza ya ChumaMashine ya kulehemu kwa upinde4
4
Overload ring and leads
Overload ring and leads
Set a safety ring under the piston with a small clearance: past a safe load, the piston lands on it and the excess goes straight to the base. Bring the gauge leads down through a hole in the ring and out through the lower diaphragm to an external cable. The gauges may be wired as a Wheatstone bridge. The cell can be sealed all round by brazing, or potted.
Vifaa kwa hatua hii:
Pete ya Usalama Dhidi ya Mzigo Uliozidi1 kipande
Kebo ya kondakta nyingi1 kipande
Waya wa Lehemu1 as requiredZana zinazohitajika:
Pasi ya Umeme ya Kulehemu
Koleo la kumenya waya5
5
Zero check
Zero check
To read the zero without moving the tank, seat a fixed ball race on top of the shell and a turning race above it, with balls between on a slightly inclined cam surface and a second row of balls under the loaded surface. Turning the upper race with a bar or spanner lifts the load a few thousandths of an inch off the piston; read the bridge, then turn it back.
Vifaa kwa hatua hii:
Jozi ya Njia za Gololi zenye Kamu1 kipande
Bearing za tufe za chuma1 setiZana zinazohitajika:
Spana inayoweza kurekebishwaVifaa
10- Kishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- Kishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 setiKishikilia Nafasi
Zana Zinazohitajika
6- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.