Chii chinonzi Pull Spring uye Inoshanda Sei?
Unoda "pull spring" asi tsvaga mazita akasiyana online. Kuvhiringidzika uku kunoita kuti zviome kutenga chikamu chakakodzera, uye kushandisa isiriyo kunogona kuita kuti chirongwa chako chikundikane.
A "dhonza chitubu[^ 1]" ndiro zita rinozivikanwa rekuti an extension spring[^ 2]. Icho chitubu chine ronda rakasimba chakagadzirirwa kurwisa simba rinokweva. Paunotambanudza, inochengetedza simba uye inogara ichiedza kudhonza migumo yayo pamwe chete kune yayo yekutanga, hurefu hupfupi.
Semugadziri wechirimo, Ndinoshanda nezvikamu izvi mazuva ese. Apo "dhonza chitubu[^ 1]" irondedzero huru yezvainoita, iro repamutemo indasitiri zita ichirimo chekuwedzera. Mashiripiti chaiwo haasi ekuti anodhonza chete, asi sei inogadzirwa kuti idhonze nesimba rinoenderana uye rakavimbika. Let's look at the key details that make this simple part so effective.
Iyo Dhonza Chitubu Inochengeta Sei Simba Rayo?
Unoona chitubu chakatambanudzwa wobva wadzokera panzvimbo. Zvinoita sezviri nyore, but there's a hidden force inside holding it together, even when it's just sitting there.
Iri simba rakavakirwa-mukati rinonzi tension yekutanga. Ihwo huwandu hwesimba hwakafanorongedzerwa muchirimo panguva yekugadzira iyo inobata makoiri zvakasimba pamwechete. Unofanira kukunda izvi kutanga kukakavara[^3] chitubu chisati chatombotanga kutambanuka, iyo inobvumira kuchengetedza simba pakarepo.
Patinoita a extension spring[^ 2] pamichina yedu yeCNC, we intentionally twist the wire as it's being coiled. Izvi zvinogadzira simba rinodzvanya coil yega yega zvine simba kune inotevera. Aya ndiwo makakatanwa ekutanga. Think of it as a starting line for the spring's work. Chitubu chisina kunetsa kwekutanga chingave chakasununguka uye chisina kusimba. With kutanga kukakavara[^3], chitubu chakasimba, compact unit kusvika waisa simba rakakwana kuparadzanisa makoiri. Ichi chimiro chakakosha mumashandisirwo akaita semagonhi ekirini, kwaunoda chitubu kubata gonhi zvakasimba, kwete kungoisiya yakarembera. Isu tinokwanisa kudzora huwandu hwekutanga tension kuti ienderane chaizvo izvo zvinodiwa nemutengi.
Mauto Maviri Mukati
An extension spring[^ 2]'s pull comes from two distinct forces working together.
- Kutanga Tension: Izvi ndizvo zvinogara zviripo, internal force that holds the spring's coils together at rest. Ndiko kuwanda kwekudhonza kunodiwa kuti chitubu chitange kurebesa. Hazvishanduki sezvo chitubu chinotambanuka.
- Spring Rate (kana Kuomarara): Iri ndiro simba rekuwedzera rinodiwa kutambanudza chitubu zvakare kamwe chete kutanga kukakavara[^3] anokundwa. Inowanzoyerwa mumapaundi painch (lbs/in) kana Newtons pamirimita (N/mm). Pa inch imwe neimwe unotambanudza chitubu, iwe unofanirwa kuwedzera izvi zvakanyanya simba.
| Kumanikidza Type | Tsanangudzo | PaInoshanda |
|---|---|---|
| Kutanga Tension | A fixed, yakavakirwa-mukati simba inobata makoiri pamwechete. | Inofanirwa kukundwa kusati kwaitwa kutambanudza. |
| Spring Rate | Simba rekuwedzera rinodiwa pachikamu chimwe nechimwe chedaro. | Inoshanda mushure mekutambudzika kwekutanga kwakundwa. |
Ndezvipi Zvikamu Zvinonyanya Kukosha zvePull Spring?
Iwe unotarisa a dhonza chitubu[^ 1], uye inoita senge tambo yewaya. Asi zvimwe zvikamu zvinonyanya kukosha kupfuura zvimwe, uye ndiwo mapoinzi akajairika ekukundikana.
Zvikamu zvakakosha zvea dhonza chitubu[^ 1] zvikorekedzo zvayo kana zvishwe zvayo. Aya mamagumo ane basa rekufambisa simba rese kubva muchirimo kuenda kuchigadzirwa chako. Chiredzo chisina kunyatsogadzirwa ndicho chikonzero chikonzero nei zvitubu zvekuwedzera zvichitadza nguva isati yakwana.
Mufekitari yedu, tinopedza nguva yakawanda tichiinjiniya zvikorekedzo kupfuura chero chikamu chipi nechipi chechirimo. The body of the spring is strong because the force is distributed evenly across many coils. But at the hook, all that force is concentrated on a single, small bend in the wire. This area of high stress is where fatigue cracks are most likely to start. A simple crossover hook is common and easy to make, but a machine hook with a full loop provides much more strength and durability. We also have to consider the angle of the hook and its opening size to make sure it attaches correctly and doesn't create extra stress points. For heavy-duty applications, we often recommend swivel hooks that can rotate to prevent the spring from being twisted and damaged.
A Look at the Ends
The body creates the force, but the hooks deliver it.
- Spring Body: This is the tightly wound section of coils. Kureba kwayo, dhayamita, and wire size determine the spring's initial tension and rate.
- Hooks kana Loops: Aya ndiwo magumo akabatanidzwa anobatanidza chitubu kune zvimwe zvikamu. Their design is critical for the spring's overall lifespan and safety.
- The Transition Point: Nzvimbo iyo coil yekupedzisira yemuviri inokotama kuti iite hoko ndiyo nzvimbo yekushushikana kwakanyanya. Bend rakapinza pano rinogadzira nzvimbo isina simba iyo inogona kutsemuka nyore pasi pekushandiswa kwakadzokororwa. A smooth, kukotama zvishoma nezvishoma chiratidzo chechitubu chakanyatsogadzirwa.
| Hook Type | Tsanangudzo | Common Use |
|---|---|---|
| Crossover Hook | The simplest type, uko koiri yekupedzisira yakakotama kumusoro nepakati. | General-chinangwa, light-duty applications. |
| Machine Hook | Koiri yekupedzisira inoumba chishwe chizere chizere chisati chakotama kunze. | Yakasimba uye yakasimba pakushandiswa kwemaindasitiri. |
| Extended Hook | Chiredzo chine kureba, chikamu chakatwasuka kuti usvike kunzvimbo iri kure yekumisikidza. | Tsika muchina uye akasiyana magungano. |
Ndekupi Kwaungawane Dhonza Zvitubu muhupenyu hweZuva rega rega?
Unonzwisisa makanika, asi unoshamisika kuti zvitubu izvi zvinonyatso shandiswa kupi. Ndezvemichina yemaindasitiri chete, kana kuti vakahwanda pachena?
Dhonza zvitubu, kana zvitubu zvekuwedzera, vari kwese kwese. Unogona kuvawana vakabata yako screen door[^4] shut, kupa bounce mune trampoline, kupikisa gonhi regaraji rako, uye mukati memidziyo yepurazi, nzira dzemotokari, nezvimwe zvisingaverengeki zvevatengi uye zvigadzirwa zvemaindasitiri.
Mumwe wemienzaniso yemhando yepamusoro yandinogona kufunga nezvayo ndeyekare-yechinyakare chidzitiro gonhi. Iyo single, refu chitubu chinomhanya diagonally kuyambuka gonhi muenzaniso wakakwana wekudhonza chitubu kubasa. It's stretched when the door is open, uye simba rayo rakachengetwa ndiro rinodhonza gonhi. Mumwe muenzaniso mukuru ndewechinyakare trampoline[^5]. Makumi e extension spring[^ 2]s batanidza kusvetuka kwematasi kune furemu yesimbi. Paunosvetuka, unotambanudza zvitubu izvozvo zvose pakarepo, uye simba ravo rekukweva rakaungana ndiro rinokudzosera mumhepo. Mumota, iwe unogona kuwana zvitubu zvidiki zvekuwedzera mucarburetor kuti udzose iyo throttle kana mudhiramu brake musangano kuti udhonze shangu dzebhureki kudzoka panzvimbo.. Ivo zvechokwadi imwe yeakanyanya kukosha mekinika zvikamu.
Common Applications
Zvitubu izvi zvakakosha mune chero mudziyo unoda kudzoka kana tensioning simba.
- Counterbalancing: Mumagonhi anorema egaraji kana zvivharo zveindasitiri, peya yezvitubu zvakakura zvekuwedzera inobata uremu, kuita kuti chinhu chinzwe kureruka uye nyore kufamba.
- Kudzoka: In levers, pedals, uye screen door[^4]S, the spring's job is to return the component to its original position after it has been moved.
- Tensioning: On trampoline[^5]s kana mumichina inofambiswa nebhandi, extension spring[^ 2]s inopa kusawirirana kunogara kuchiita kuti zvese zvirambe zvakasimba uye zvinodaira.
| Nzvimbo Yekushandisa | Chaiyo Muenzaniso | Spring's Function |
|---|---|---|
| Mhuri | Screen Door Closer | Anodhonza gonhi ozvivharira. |
| Varaidzo | Trampoline Mat | Inopa bounce nekudhonza mat taut. |
| Automotive | Drum Mabhureki | Anodhonza shangu dzebhureki kure nedhiramu. |
| Industrial | Conveyor Belt Tensioner | Rinochengeta bhandi rakasimba kudzivirira kutsvedza. |
Mhedziso
A "kudhonza chitubu," kana chitubu chekuwedzera, ikoiri yakagadzirirwa kurwisa simba rinokweva richishandisa kutanga kukakavara[^3] uye mwero wayo wechirimo. Hoko dzayo ndicho chikamu chinonyanya kukosha.
[^ 1]: Kunzwisisa kudhonza zvitubu kwakakosha kune akasiyana maapplication, kuve nechokwadi chekuti unosarudza mhando yakakodzera kune zvaunoda.
[^ 2]: Ongorora kuwanda kwezvitubu zvekuwedzera uye mashandisiro azvo muzvigadzirwa zvemazuva ese nemichina.
[^3]: Dzidza nezvekutanga kunetsekana uye kukosha kwayo mukuita uye kuvimbika kwezvitubu.
[^4]: Dzidza kuti zvitubu zvekuwedzera zvinoita sei kuti magonhi echidzitiro avhare otomatiki uye zvakachengeteka.
[^5]: Dzidza kuti zvitubu zvekuwedzera zvinopa sei bounce mu trampolines uye kukosha kwavo.