Rubber shims inomisa kuzunguzika isati yatanga. Vanoyera michina pasina kukuya simbi nesimbi. Vanotora kuvhunduka kwaizonetesa mawelds, mabhesi ekutsemuka, kana kuti misalign shafts. Takavaona vachishandura basa rekugadzirisa maminetsi makumi matatu kuita 90-yechipiri gadziriso-uye kudzivirira zviuru gumi nezviviri zvemadhora munguva isina kurongeka pamutsara wekurongedza muShandong.
Nei rubha ichipenya kupfuura simbi nepurasitiki mumaseti chaiwo epasirese
Mainjiniya mazhinji anotanga asvika kune simbi shim. Ivo vanoziva. Vakaoma. Vanonzwa “vakasimba.” Asi kuoma kunokundikana pane kufamba kuripo. Simbi inoendesa yakakwira-frequency vibration yakananga mumafandesheni. Plastic shims compress zvisina kuenzana pasi pekupisa bhasikoro. Rubha—kunyanya EPDM, NBR, kana silicone komisheni ine 40–70 Shore A kuoma—inopa kutsauka kunodzorwa. Yedu yebvunzo dzeLab inoratidza 65 Shore A EPDM shims inoderedza 1.2–8 kHz resonance peaks ne 42-68% zvichienzaniswa neakafanana mastacks.
Isu takambotsiva gumi nenomwe akaturikidzana shims pasi pe CNC inotonhorera pombi ine matatu 2-mm erabha shim. Vibration amplitude yakadonha kubva pa7.3 mm/s RMS kuenda pa2.1 mm/s RMS. Upenyu hwekutakura hwepombi hwakawedzera kubva kumwedzi gumi nemina kusvika kumwedzi makumi matatu nemitatu. Hapana recalibration inodiwa. Hapana kudzokororwazve mushure mekupisa kunyorova. Kungofanana kunyorovesa pane ambient tembiricha kubva -20°C kusvika +80°C.
Rubber shims zvakare inogadzirisa kukwenenzvera uko kushivirira kunokosha. Iyo 0.5-mm-yakakora shim ine ± 0.03 mm ukobvu control inobata kupfava mukati me 0.05 mm/m-yakasimba kupfuura akawanda maplate esimbi akagadzirwa. Izvo zvine basa kana uchibatanidza laser-inotungamirwa conveyors kana optical sensor mounts. Iwe haugaye, iwe isa. Iwe hauyere kaviri, unosimbisa kamwe chete.
Zvikanganiso zvitatu zvinoita kuti rubber shim zvikundike-uye nzira yekuzvidzivisa
Vamwe vanogona kupokana kuti rabha inoshatisa nekukurumidza pasi pemafuta kana kuratidzwa kweUV. Icho ichokwadi - kune iyo isiriyo komputa. Isu takatsvaga kukundikana mukumisikidzwa kwemahombekombe egungwa uko generic dema rabha shims yakazvimba 300% mumafuta edhiziri. Asi NBR (nitrile) shims inoshingirira kunyudzwa mumafuta ehydraulic kweanopfuura makore mashanu. EPDM inopikisa ozone uye mamiriro ekunze. Silicone inobata steam sterilization cycles. Kusarudzwa kwezvinhu hakusi kwesarudzo-ndiyo yekutanga sarudzo yeinjiniya.
Mistake #1: Kufuratira compression set. Rabha yakaderera-inodhura inoderera zvachose mushure mekutakura. Shimu inomanikidza 15% pazuva rekutanga uye imwe 8% mushure memwedzi mitanhatu inosiya michina isina kurongeka. Isu tinotsanangura shims ne <5% compression yakaiswa mushure memaawa makumi manomwe pa70°C paASTM D395 Method B.
Mistake #2: Kushandisa adhesive-backed shims pedyo nekupisa. Nama inopfava. Shimu inotsvedza. Pane kudaro, tinocheka shim kuti iite tsoka chaiyo-hapana overhang, hapana ngozi yeganda. Kune mabhaudhi magungano, isu tinokurudzira 1.5 × iyo bhaudhi dhayamita seyakaderera shim hupamhi kudzivirira kumucheto kupeta.
Mistake #3: Kufunga kuti "rabha" yese yakaenzana. Mumwe mutengi akaedza mota ye weatherstripping tepi seshim. Yakadzvanya 60% pasi pe2 MPa mutoro uye haina kuzombopora. Chaiyo maindasitiri erabha shims anotakura tensile simba ≥8 MPa uye elongation ≥300%. Idzo nhamba hadzisi kushambadzira-iwo mishumo yebvunzo iwe yaunogona kukumbira usati wahodha.
Nzira yekusarudza yakarurama rubber shim-nekukurumidza
Tanga nemutoro wako. Kwete huremu hwakakwana-asi simba pa square centimita pasi pekushanda kune simba. Motokari ye500-kg inomhanya pa2950 rpm inopa ~ 1.8 MPa peak stress panzvimbo dzekukwira. Izvo zvinoda 60–70 Shore A NBR, shoma 3 mm mukobvu.
Wobva wafananidza nharaunda:
- Kuratidzwa kwemafuta? Sarudza NBR-yakaedzwa kune ISO 1817 mu ISO VG 46 hydraulic mafuta
- Zuva rekunze nemvura? Sarudza EPDM—UV-yakadzikama, isingadziviriri ozone, yakarongwa kusvika -40°C
- Chekudya chegiredhi here kana kuti chekuchenesa? Taura FDA-inoenderana nesilicone kana chena EPDM, Kirasi VI yakaedzwa
- High-temp steam? Silicone chete-yakagadzikana kusvika 200 ° C inoenderera
Hukobvu hunouya pekupedzisira. Usambofa wakarongedza anopfuura maviri shim. Imwe neimwe interface inowedzera micro-slip uye inoderedza kunyorova kushanda. Kana uchida 4.5 mm kusimudza, shandisa imwe 4.5-mm shim-kwete 3-mm + 1.5-mm peya. Isu tinotakura zviyero zvakajairwa kubva pa 0.5 mm kusvika 10 mm mu 0.5-mm increments, ese akachekwa-akachekwa kusvika ± 0.02 mm kushivirira.
Shape inotevera basa. Round shims centre mabhaudhi. Rectangular shims zambuko rakakura tsoka. Maprofiles echinyakare anobata mamoiri asina kujairika - seaya ari pamichina yekudhinda yenhaka kana machira ekuruka. Isu tinotumira zvigadzirwa zvinomhanya mumaawa 72. Prototypes mu48.
Rubber shims haisi zvishongedzo-idzo dzakagadziridzwa nzvimbo
Vanogara apo simba rinosangana nechimiro. Apo kufamba kunosangana nerunyararo. Apo kururama kunosangana nechokwadi. Pese apo shim yerabha inobata 0.3 joules emagetsi ekinetic, inodzivirira micro-fractures mune mawelds ari pedyo. Mamilimita ese ekutsauka kunodzorwa kunowedzera kubereka hupenyu. Kuiswa kwega kwega kunodzokororwa kunoderedza nguva yekutumwa.
Hebei Dewell Metal Products Co., LTD inogadzira shim dzerabha padivi pesimbi isina simbi yekumisikidza, washer, uye anchor masisitimu-nekuti vibration control inotangira pajoini, kwete furemu. Nzvimbo yavo muYongnian District inogadzira shims yakaedzwa kuISO 9001:2015, ine batch traceability pasi kusvika kune yakaomeswa nhamba yakawanda. Iwe unowana shim-kwete kufungidzira.
Nguva inotevera painozunguzika, kudhonzwa zvisizvo, kana kuenzana kunopedza mangwanani ako, bvunza: Iri idambudziko remuchina here—kana kuti idambudziko rekusarudza zvinhu? Rubber shims haigoni kugadzirisa nheyo dzakaipa kana mabheji akasakara. Asi ivo vanogadzirisa izvo zvavakagadzirirwa: kushandura kusagadzikana kuita kunyarara, uye kusavimbika kuita kudzokororwa chokwadi. Izvo hazvisi nyore. Ndiko kuwedzera kweinjiniya.
